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    "results": [
        {
            "id": 14928,
            "url": "https://svs.gsfc.nasa.gov/14928/",
            "result_type": "Produced Video",
            "release_date": "2025-11-20T10:00:00-05:00",
            "title": "TESS Triples Size of Pleiades Star Cluster",
            "description": "These young, hot blue stars are members of the Pleiades open star cluster and reside about 430 light-years away in the northern constellation Taurus. The brightest stars are visible to the unaided eye during evenings from October to April. A new study finds the cluster to be triple the size previously thought — and shows that its stars are scattered across the night sky. The Schmidt telescope at the Palomar Observatory in California captured this color-composite image. Credit: NASA, ESA, and AURA/CaltechAlt text: Members of the Pleiades shine in blue. Image description: The Pleiades are shown in this image. Six of the stars, all blue-white, are larger than the others and have diffraction spikes and faint blue circles around them. Other, smaller blue stars are also scattered across the image. Patches of swirling blue dust surround some of the stars. || STScI-01EVVEYWX1TA3MGBK5F6EFQVGQ.jpg (4877x3513) [1.1 MB] || ",
            "hits": 434
        },
        {
            "id": 14287,
            "url": "https://svs.gsfc.nasa.gov/14287/",
            "result_type": "Produced Video",
            "release_date": "2023-03-16T14:00:00-04:00",
            "title": "Hubble’s Inside The Image: Crab Nebula",
            "description": "The Hubble Space Telescope has taken over 1.5 million observations over the years. One of them is the breathtaking Crab Nebula.With an apparent magnitude of 8.4 and located 6,500 light-years from Earth in the constellation Taurus, the Crab Nebula can be spotted with a small telescope and is best observed in January. The nebula was discovered by English astronomer John Bevis in 1731, and later observed by Charles Messier who mistook it for Halley’s Comet. Messier’s observation of the nebula inspired him to create a catalog of celestial objects that might be mistaken for comets.In this video, Dr. Padi Boyd takes us on a journey through the Nebula, teaching us some of the interesting science behind this famous Hubble image.For more information, visit https://nasa.gov/hubble. Credit: NASA's Goddard Space Flight Center Producer & Director: James LeighEditor: Lucy LundDirector of Photography: James BallAdditional Editing & Photography: Matthew DuncanExecutive Producers: James Leigh & Matthew DuncanProduction & Post: Origin Films Video Credit:Hubble Space Telescope AnimationCredit: ESA/Hubble (M. Kornmesser & L. L. Christensen), A. Fujii, Robert Gendler, Digitized Sky Survey 2, Panther Observatory, Steve Cannistra, Michael Pierce, Robert Berrington (Indiana University), Nigel Sharp, Mark Hanna (NOAO)/WIYN/NSF. Crab Nebula Zoom VisualizationCredit: ESA/Hubble, Digitized Sky Survey, Nick Risinger (skysurvey.org) Dark Matter Gravitational Lensing AnimationCredit: NASA's Goddard Space Flight Center Conceptual Image LabMusic Credit:\"Transcode\" by Lee Groves [PRS], and Peter George Marett [PRS] via Universal Production Music“Night Call” by Timothy Paul Handels [SABAM] via Pedigree Cuts [PRS] and Universal Production Music || ",
            "hits": 50
        },
        {
            "id": 5053,
            "url": "https://svs.gsfc.nasa.gov/5053/",
            "result_type": "Visualization",
            "release_date": "2022-12-05T10:00:00-05:00",
            "title": "Flying over the Taurus-Littrow Valley",
            "description": "The camera flies low over the Taurus-Littrow valley, primarily east to west, arriving at the South Massif, where it tilts up to view the Earth. || valley.0150_print.jpg (1024x576) [101.9 KB] || valley.0150_searchweb.png (320x180) [32.9 KB] || valley.0150_thm.png (80x40) [2.3 KB] || taurus_littrow_valley_1080p30.mp4 (1920x1080) [12.8 MB] || taurus_littrow_valley_720p30.mp4 (1280x720) [6.4 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || taurus_littrow_valley_720p30.webm (1280x720) [3.0 MB] || taurus_littrow_valley_360p30.mp4 (640x360) [2.3 MB] || taurus_littrow_valley_1080p30.mp4.hwshow [195 bytes] || ",
            "hits": 452
        },
        {
            "id": 4953,
            "url": "https://svs.gsfc.nasa.gov/4953/",
            "result_type": "Visualization",
            "release_date": "2021-11-04T12:00:00-04:00",
            "title": "November 19, 2021 <i>Almost</i> Total Lunar Eclipse",
            "description": "The Moon moves right to left, passing through the penumbra and umbra, leaving in its wake an eclipse diagram with the times at various stages of the eclipse. All times are UTC. || moon.1475_print.jpg (1024x576) [66.4 KB] || eclipse_202111_umbra_1080p30.mp4 (1920x1080) [10.1 MB] || eclipse_202111_umbra_720p30.mp4 (1280x720) [5.9 MB] || umbra (1920x1080) [0 Item(s)] || eclipse_202111_umbra_720p30.webm (1280x720) [8.6 MB] || eclipse_202111_umbra_360p30.mp4 (640x360) [2.4 MB] || eclipse_202111_umbra_1080p30.mp4.hwshow [194 bytes] || ",
            "hits": 71
        },
        {
            "id": 13737,
            "url": "https://svs.gsfc.nasa.gov/13737/",
            "result_type": "Produced Video",
            "release_date": "2021-04-08T14:00:00-04:00",
            "title": "NASA’s NICER Finds X-ray Boosts in the Crab Pulsar’s Radio Bursts",
            "description": "Observations from NASA’s Neutron star Interior Composition Explorer (NICER) show X-ray boosts linked in the Crab pulsar's random giant radio pulses. Watch to learn more. Credit: NASA's Goddard Space Flight CenterMusic: \"The Awakening\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Crab_Radio_Still.jpg (1920x1080) [865.4 KB] || Crab_Radio_Still_searchweb.png (320x180) [65.9 KB] || Crab_Radio_Still_thm.png (80x40) [5.2 KB] || 13737_Crab_Pulsar_Radio_Bursts_ProRes_1920x1080_2997.mov (1920x1080) [1.6 GB] || 13737_Crab_Pulsar_Radio_Bursts_Best_1080.mp4 (1920x1080) [275.3 MB] || 13737_Crab_Pulsar_Radio_Bursts_1080.mp4 (1920x1080) [114.7 MB] || 13737_Crab_Pulsar_Radio_Bursts_Best_1080.webm (1920x1080) [15.2 MB] || 13737_Crab_Pulsar_Radio_Bursts_SRT_Captions.en_US.srt [2.6 KB] || 13737_Crab_Pulsar_Radio_Bursts_SRT_Captions.en_US.vtt [2.6 KB] || ",
            "hits": 150
        },
        {
            "id": 13794,
            "url": "https://svs.gsfc.nasa.gov/13794/",
            "result_type": "Infographic",
            "release_date": "2021-02-12T14:00:00-05:00",
            "title": "NASA’s TESS Finds New Worlds in a River of Stars",
            "description": "This illustration sketches out the main features of TOI 451, a triple-planet system located 400 light-years away in the constellation Eridanus.Credit: NASA’s Goddard Space Flight Center || TOI_451_infographic_1920.png (1920x1080) [2.6 MB] || TOI_451_infographic_1920_print.jpg (1024x576) [129.4 KB] || TOI_451_infographic_3840.png (3840x2160) [8.2 MB] || TOI_451_infographic_1920_searchweb.png (320x180) [73.0 KB] || TOI_451_infographic_1920_thm.png (80x40) [6.5 KB] || ",
            "hits": 346
        },
        {
            "id": 13738,
            "url": "https://svs.gsfc.nasa.gov/13738/",
            "result_type": "Produced Video",
            "release_date": "2020-10-19T11:30:00-04:00",
            "title": "OSIRIS-REx Science and Engineering Briefing",
            "description": "Main title for T-1 OSIRIS-REx Science and Engineering Briefing || t-1_title.jpg (2878x1618) [2.5 MB] || t-1_title_searchweb.png (320x180) [58.9 KB] || t-1_title_thm.png (80x40) [4.2 KB] || ",
            "hits": 38
        },
        {
            "id": 13724,
            "url": "https://svs.gsfc.nasa.gov/13724/",
            "result_type": "Produced Video",
            "release_date": "2020-09-24T14:25:00-04:00",
            "title": "OSIRIS-REx: Countdown to TAG",
            "description": "Trailer for the OSIRIS-REx TAG EventUniversal Production Music: \"The Glory of Victory\" by Frederik WiedmannCredit: NASA/Goddard || tagtrailer13725_print.jpg (1024x576) [67.1 KB] || tagtrailer13725.jpg (3840x2160) [354.2 KB] || tagtrailer_twitter_720.mp4 (1280x720) [18.8 MB] || tagtrailer_facebook_720.webm (1280x720) [11.4 MB] || tagtrailer_facebook_720.mp4 (1280x720) [107.3 MB] || tagtrailercaption.en_US.srt [1.6 KB] || tagtrailercaption.en_US.vtt [1.6 KB] || tagtrailer.mp4 (3840x2160) [106.9 MB] || ",
            "hits": 59
        },
        {
            "id": 4851,
            "url": "https://svs.gsfc.nasa.gov/4851/",
            "result_type": "Visualization",
            "release_date": "2020-09-09T13:15:00-04:00",
            "title": "Deep Star Maps 2020",
            "description": "The star map in celestial coordinates, at five different resolutions. The map is centered at 0h right ascension, and r.a. increases to the left. || starmap_2020_4k_print.jpg (1024x512) [41.8 KB] || starmap_2020_4k_searchweb.png (320x180) [53.9 KB] || starmap_2020_4k_thm.png (80x40) [5.5 KB] || starmap_2020_4k.exr (4096x2048) [34.3 MB] || starmap_2020_8k.exr (8192x4096) [124.5 MB] || starmap_2020_16k.exr (16384x8192) [422.9 MB] || starmap_2020_32k.exr (32768x16384) [1.4 GB] || starmap_2020_64k.exr (65536x32768) [3.8 GB] || ",
            "hits": 3726
        },
        {
            "id": 4714,
            "url": "https://svs.gsfc.nasa.gov/4714/",
            "result_type": "Visualization",
            "release_date": "2019-05-13T11:00:00-04:00",
            "title": "Lee Lincoln Scarp at the Apollo 17 Landing Site",
            "description": "An animated view of Lee Lincoln scarp from above and from near ground level. This visualization is created from Lunar Reconnaissance Orbiter photographs and elevation mapping. The scarp is at the western end of the Taurus-Littrow valley, landing site of Apollo 17, and was explored by the astronauts on their second moonwalk. || scarp.0510_print.jpg (1024x576) [101.8 KB] || scarp.0510_searchweb.png (320x180) [63.7 KB] || scarp.0510_thm.png (80x40) [5.3 KB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || scarp_1080p30.mp4 (1920x1080) [15.7 MB] || scarp_720p30.mp4 (1280x720) [8.7 MB] || scarp_720p30.webm (1280x720) [3.5 MB] || scarp_1080p30_prores.mov (1920x1080) [657.9 MB] || scarp_360p30.mp4 (640x360) [3.3 MB] || scarp_1080p30.mp4.hwshow || ",
            "hits": 355
        },
        {
            "id": 40371,
            "url": "https://svs.gsfc.nasa.gov/gallery/apollo/",
            "result_type": "Gallery",
            "release_date": "2019-05-10T00:00:00-04:00",
            "title": "Project Apollo",
            "description": "This is a collection of the media resources available on the Scientific Visualization Studio website relating to NASA's Apollo missions to the Moon. More information and media can be found at\n\nNASA.gov\nApollo Lunar Surface Journal\nApollo Flight Journal\nApollo Landing Sites photographed by Lunar Reconnaissance Orbiter\nApollo in Real TimeProject Apollo Archive on Flickr",
            "hits": 1622
        },
        {
            "id": 12994,
            "url": "https://svs.gsfc.nasa.gov/12994/",
            "result_type": "Produced Video",
            "release_date": "2018-07-12T11:00:00-04:00",
            "title": "NASA's Fermi Links Cosmic Neutrino to Monster Black Hole",
            "description": "The discovery of a high-energy neutrino on Sept. 22, 2017, sent astronomers on a chase to locate its source -- a supermassive black hole in a distant galaxy. Watch to learn more.Credit: NASA’s Goddard Space Flight CenterMusic: \"Hidden Tides\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Blazar.00590_print.jpg (1024x576) [61.2 KB] || Blazar.00590.png (3840x2160) [5.2 MB] || Blazar.00590.jpg (3840x2160) [536.3 KB] || Blazar.00590_searchweb.png (320x180) [46.6 KB] || Blazar.00590_thm.png (80x40) [4.6 KB] || 12994_Fermi_Blazar_Neutrino_1080p.webm (1920x1080) [17.1 MB] || 12994_Fermi_Blazar_Neutrino_1080.mp4 (1920x1080) [154.8 MB] || 12994_Fermi_Blazar_Neutrino_1080p.mov (1920x1080) [229.5 MB] || 12994_Fermi_Blazar_Neutrino_SRT_Captions.en_US.srt [2.8 KB] || 12994_Fermi_Blazar_Neutrino_SRT_Captions.en_US.vtt [2.7 KB] || 12994_Fermi_Blazar_Neutrino_H264_4k_2997.mp4 (3840x2160) [380.3 MB] || 12994_Fermi_Blazar_Neutrino_4K.mov (3840x2160) [445.0 MB] || 12994_Fermi_Blazar_Neutrino_ProRes_4k_2997.mov (3840x2160) [6.5 GB] || ",
            "hits": 161
        },
        {
            "id": 4717,
            "url": "https://svs.gsfc.nasa.gov/4717/",
            "result_type": "Visualization",
            "release_date": "2018-03-23T00:00:00-04:00",
            "title": "The Taurus-Littrow Valley through LRO's Eyes",
            "description": "This visualization of the Taurus-Littrow valley, site of the Apollo 17 Moon landing, uses multiple Lunar Reconnaissance Orbiter datasets to zoom into the valley and illustrate the paths taken by the astronauts during their three days of exploration at the site. The data includes wide-angle (WAC) and narrow-angle (NAC) camera images, LOLA laser altimetry, and a high-resolution elevation map created from NAC stereo pairs. The imagery was chosen to approximately match the lighting conditions at the time of the landing. Color-coded trails with numbered stops (called stations in astronaut lingo) show where Eugene Cernan and Harrison Schmitt drove their lunar rover — orange on day 1, blue on day 2, and green on day 3. || ",
            "hits": 473
        },
        {
            "id": 4302,
            "url": "https://svs.gsfc.nasa.gov/4302/",
            "result_type": "Visualization",
            "release_date": "2015-12-08T20:00:00-05:00",
            "title": "Apollo 17 Landing Site",
            "description": "Apollo 17, crewed by Eugene Cernan, Ronald Evans, and Harrison Schmitt, was the final Apollo mission to the Moon. The Lunar Module Challenger landed in the Taurus-Littrow valley on December 11, 1972 and remained there for 75 hours. The landing site is a relatively flat spot among low mountains at the southeastern edge of Mare Serenitatis.The images here are designed for display on NASA's hyperwall. They help tell the story of Apollo 17's exploration of the Taurus-Littrow site using data and imaging from Lunar Reconnaissance Orbiter (LRO) and photographs taken by the astronauts. LRO's detailed and comprehensive remote sensing capabilities have fostered a reinterpretation of the geology of the site. || ",
            "hits": 1290
        },
        {
            "id": 3909,
            "url": "https://svs.gsfc.nasa.gov/3909/",
            "result_type": "Visualization",
            "release_date": "2012-03-14T11:00:00-04:00",
            "title": "Tour of the Moon: Additional Footage",
            "description": "This is additional footage produced for the narrated version of Tour of the Moon. It supplements the visualizations in entry 3874. || ",
            "hits": 364
        },
        {
            "id": 10929,
            "url": "https://svs.gsfc.nasa.gov/10929/",
            "result_type": "Produced Video",
            "release_date": "2012-03-14T10:00:00-04:00",
            "title": "A Narrated Tour of the Moon",
            "description": "Although the moon has remained largely unchanged during human history, our understanding of it and how it has evolved over time has evolved dramatically. Thanks to new measurements, we have new and unprecedented views of its surface, along with new insight into how it and other rocky planets in our solar system came to look the way they do. See some of the sights and learn more about the moon here! || ",
            "hits": 137
        },
        {
            "id": 10906,
            "url": "https://svs.gsfc.nasa.gov/10906/",
            "result_type": "Produced Video",
            "release_date": "2012-01-31T13:00:00-05:00",
            "title": "NASA's IBEX Spacecraft Reveals New Observations of Interstellar Matter",
            "description": "A great magnetic bubble surrounds the solar system as it cruises through the galaxy. The sun pumps the inside of the bubble full of solar particles that stream out to the edge until they collide with the material that fills the rest of the galaxy, at a complex boundary called the heliosheath. On the other side of the boundary, electrically charged particles from the galactic wind blow by, but rebound off the heliosheath, never to enter the solar system. Neutral particles, on the other hand, are a different story. They saunter across the boundary as if it weren't there, continuing on another 7.5 billion miles for 30 years until they get caught by the sun's gravity, and sling shot around the star. There, NASA's Interstellar Boundary Explorer lies in wait for them. Known as IBEX for short, this spacecraft methodically measures these samples of the mysterious neighborhood beyond our home. IBEX scans the entire sky once a year, and every February, its instruments point in the correct direction to intercept incoming neutral atoms. IBEX counted those atoms in 2009 and 2010 and has now captured the best and most complete glimpse of the material that lies so far outside our own system. The results? It's an alien environment out there: the material in that galactic wind doesn't look like the same stuff our solar system is made of.More than just helping to determine the distribution of elements in the galactic wind, these new measurements give clues about how and where our solar system formed, the forces that physically shape our solar system, and even the history of other stars in the Milky Way.In a series of science papers appearing in the Astrophysics Journal on January 31, 2012, scientists report that for every 20 neon atoms in the galactic wind, there are 74 oxygen atoms. In our own solar system, however, for every 20 neon atoms there are 111 oxygen atoms. That translates to more oxygen in any given slice of the solar system than in the local interstellar space. For media associated with this release, go to #10905 and #3900. || ",
            "hits": 151
        },
        {
            "id": 3895,
            "url": "https://svs.gsfc.nasa.gov/3895/",
            "result_type": "Visualization",
            "release_date": "2012-01-17T00:00:00-05:00",
            "title": "Deep Star Maps",
            "description": "This set of star maps was created by plotting the position, brightness, and color of just over 100 million stars from the Bright Star, Tycho-2, and UCAC3 star catalogs. The constellation boundaries are those established by the International Astronomical Union in 1930. The constellation figures also come from the IAU, although they're not official.The maps are presented in plate carrée projections using either celestial (J2000 geocentric right ascension and declination) or galactic coordinates. They are designed for spherical mapping in animation software. The oval shapes near the top and bottom of the star maps are not galaxies. The distortion of the stars in those parts of the map is just an effect of the projection.The celestial coordinate mapping will be the more useful one for animation, since camera rotations in the software will correspond in a straightforward way to the right ascension and declination in astronomy references. The galactic coordinate mapping works as a standalone image showing the edge-on view of our home galaxy, from the inside.The animation demonstrates the use of the maps in a tour of the sky. The tour starts at W-shaped Cassiopeia, then heads south through Perseus to the winter constellation of Orion the Hunter and the Hyades and Pleiades star clusters in Taurus. It moves southeast past Orion's canine companion and its star, Sirius, brightest in the sky, eventually pausing at the rich southern hemisphere portion of the Milky Way in Carina and Crux, the Southern Cross.East of the Cross, in Centaurus, is the binary star Alpha Centauri, at 4.4 light-years the naked-eye star system nearest to the Sun. Also visible as a fuzzy spot near the top of the frame is the globular cluster Omega Centauri. The number of stars used to draw the star maps is large enough to reveal many globular and open star clusters as well as the Large and Small Magellanic Clouds.After passing near the celestial south pole, the tour moves north along the Milky Way to the center of our galaxy near the teapot in Sagittarius. The tour veers northwest from there, finally stopping at the familiar Big Dipper or Plough asterism in Ursa Major.This is an update to entry 3572. || ",
            "hits": 1187
        },
        {
            "id": 3874,
            "url": "https://svs.gsfc.nasa.gov/3874/",
            "result_type": "Visualization",
            "release_date": "2011-10-27T06:00:00-04:00",
            "title": "Tour of the Moon",
            "description": "Using elevation and image data returned by Lunar Reconnaissance Orbiter (LRO), this animation takes the viewer on a virtual tour of the Moon. The tour visits a number of interesting sites chosen to illustrate a wide variety of lunar terrain features. Some are on the near side and are familiar to both professional and amateur observers on Earth, while others can only be seen clearly from space. Some are large and old (Orientale, South Pole-Aitken), others are smaller and younger (Tycho, Aristarchus). Constantly shadowed areas near the poles are hard to photograph but easier to measure with altimetry, while several of the Apollo landing sites, all relatively near the equator, have been imaged at resolutions as high as 25 centimeters (10 inches) per pixel.The shape of the terrain in this animation is based primarily on data from LRO's laser altimeter (LOLA), supplemented by stereo image data from its wide angle camera (LROC WAC) and from Japan's Kaguya mission. The global surface color is from Clementine. || ",
            "hits": 537
        },
        {
            "id": 10708,
            "url": "https://svs.gsfc.nasa.gov/10708/",
            "result_type": "Produced Video",
            "release_date": "2011-01-12T12:00:00-05:00",
            "title": "A Flickering X-ray Candle",
            "description": "The Crab Nebula, created by a supernova seen nearly a thousand years ago, is one of the sky's most famous \"star wrecks.\" For decades, most astronomers have regarded it as the steadiest beacon at X-ray energies, but data from orbiting observatories show unexpected variations, showing astronomers their hard X-ray \"standard candle\" isn't as steady as they once thought. From 1999 to 2008, the Crab brightened and faded by as much as 3.5 percent a year, and since 2008, it has faded by 7 percent. The Gamma-ray Burst Monitor on NASA's Fermi satellite first detected the decline, and Fermi's Large Area Telescope also spotted two gamma-ray flares at even higher energies. Scientists think the X-rays reveal processes deep within the nebula, in a region powered by a rapidly spinning neutron star — the core of the star that blew up. But figuring out exactly where the Crab's X-rays are changing over the long term will require a new generation of X-ray telescopes. || ",
            "hits": 45
        },
        {
            "id": 10379,
            "url": "https://svs.gsfc.nasa.gov/10379/",
            "result_type": "Produced Video",
            "release_date": "2009-02-18T00:00:00-05:00",
            "title": "Glory Launch Sequence",
            "description": "Glory will launch from Vandenberg Air Force Base onboard a Taurus XL launch vehicle. The Taurus launch service is provided by Orbital Sciences Corporation Launch Systems Group, under contract to the NASA Kennedy Space Center. The Taurus XL will place Glory into a circular, Sun-synchronous injection orbit with an altitude of 640 kilometers and an inclination of 97.9 degrees. || ",
            "hits": 19
        },
        {
            "id": 3572,
            "url": "https://svs.gsfc.nasa.gov/3572/",
            "result_type": "Visualization",
            "release_date": "2009-01-26T00:00:00-05:00",
            "title": "The Tycho Catalog Skymap - Version 2.0",
            "description": "This image set is a skymap of stars from the Tycho and Hipparcos star catalogs, provided by the ESO/ECF generic catalog server. The maps are plotted in plate carrée projection (Cylindrical-Equidistant) using celestial coordinates making them suitable for mapping onto spheres in many popular animation programs. The stars are plotted as gaussian point-spread functions (PSF) so the size and amplitude of the stars corresponds to their relative intensity. The stars are also elongated in Right Ascension (celestial longitude) based on declination (celestial latitude) so stars in the polar regions will still be round when projected on a sphere. Stars fainter than the threshold magnitude, usually selected as 5th magnitude, have their magnitude-intensity curve adjusted so they appear brighter than they really are. This makes the band of the Milky Way more visible. Stellar colors are assigned based on B and V magnitudes (B and V are stellar magnitudes measured through different filters). If Johnson B and V magnitudes are unavailable, Tycho B and V magnitudes are used instead. From these, an effective stellar temperature is derived using the algorithms described in Flower (ApJ 469, 355 1996). Corrections were noted from Siobahn Morgan (UNI). The effective temperature was then converted to CIE tristimulus X,Y,Z triples assuming a black-body emission distribution. The X,Y,Z values are then converted to red-green-blue color pixels. About 2.4 million stars are plotted, but many may be below the pixel intensity resolution. The three most conspicuously missing objects on these maps are the Andromeda galaxy (M31) and the two Magellanic Clouds. Changes from the first version #3442, The Tycho Catalog Skymap: The star generation algorithm now favors use of the Johnson magnitudes when available. This improves the star colors over the previous method. The star intensity profiles are also slightly modified to make the cores brighter with a faster intensity falloff. We have also set the color standard to SMPTE with a gamma of 1.8.Update: This skymap has been revised.  The newer version is available at Deep Star Maps. || ",
            "hits": 216
        },
        {
            "id": 3442,
            "url": "https://svs.gsfc.nasa.gov/3442/",
            "result_type": "Visualization",
            "release_date": "2007-08-20T00:00:00-04:00",
            "title": "The Tycho Catalog Skymap",
            "description": "This image set is a skymap of stars from the Tycho and Hipparcos star catalogs. The maps are plotted in plate carrée projection (Cylindrical-Equidistant) using celestial coordinates making them suitable for mapping onto spheres in many popular animation programs. The stars are plotted as gaussian point-spread functions (PSF) so the size and amplitude of the stars corresponds to their relative intensity. The stars are also elongated in Right Ascension (celestial longitude) based on declination (celestial latitude) so stars in the polar regions will still be round when projected on a sphere. Stars fainter than the threshold magnitude, usually selected as 5th magnitude, have their magnitude-intensity curve adjusted so they appear brighter than they really are. This makes the band of the Milky Way more visible. Stellar colors are assigned based on B and V magnitudes (B and V are stellar magnitudes measured through different filters). If Tycho B and V magnitudes are unavailable, Johnson B and V magnitudes are used instead. From these, an effective stellar temperature is derived using the algorithms described in Flower (ApJ 469, 355 1996). Corrections were noted from Siobahn Morgan (UNI). The effective temperature was then converted to CIE tristimulus X,Y,Z triples assuming a black-body emission distribution. The X,Y,Z values are then converted to red-green-blue color pixels. About 2.4 million stars are plotted, but many may be below the pixel intensity resolution. The three most conspicuously missing objects on these maps are the Andromeda galaxy (M31) and the two Magellanic Clouds. [The images in this visualization were updated August 28, 2007 to fix a bug in the star generation algorithm.]This skymap has been superseded by #3572, The Tycho Catalog Skymap - Version 2.0. || ",
            "hits": 131
        }
    ]
}