{ "id": 12232, "url": "https://svs.gsfc.nasa.gov/12232/", "page_type": "Produced Video", "title": "Mercury Transit Live Shots May 9, 2016", "description": "NASA will broadcast a stunning view of Mercury on May 9 as it journeys across the sun. The event, known as a transit, occurs when Mercury passes directly between Earth and the sun. This rare phenomenon will cause Mercury to look like a black dot gliding across the sun’s face. Mercury’s last transit was in 2006, and it won’t happen again until 2019!Starting at 7:12 a.m. EDT, Mercury will spend more than seven hours travelling across the sun. NASA’s Solar Dynamics Observatory will take the first near real time, ultra-high definition images ever for this event. This is also an opportunity for NASA scientists to fine tune the spacecraft’s cameras, using a method that can only be done during a transit. NASA scientists are available Monday, May 9 from 6:00 a.m. – 11:30 a.m. EDT to show your viewers amazing images of this event as it unfolds. Scientists will also share why transits are important, and how they’re being used to learn more about planets in our solar system—and beyond. Scientists have been using transits for hundreds of years to study the planets in our solar system. When a planet crosses in front of the sun, it causes the sun’s brightness to dim. Scientists can measure similar brightness dips from other stars to find planets orbiting them, and can calculate their sizes, how far away the planets are from their stars, and even get hints of what they’re made of. Upcoming NASA missions will watch for transits outside our solar system in order to find new planets, including some that could resemble Earth.****To book a window***Contact Claire Saravia – claire.g.desaravia@nasa.govSuggested questions: 1.Mercury is trekking across the sun today for the first time in 10 years. How can we see this transit?2.Why are transits so important to astronomers? 3.Why does NASA watch the sun?4.NASA is using the transit method to study planets beyond our solar system. What do we expect to learn from future missions doing this? 5.Where can we learn more? HD Satellite Coordinates for AMC9-K17: AMC-9 Ku-band Xp 17 Slot AB| 83.0 ° W Longitude | DL 12045.8 MHz | Horizontal Polarity | QPSK/DVB-S | FEC 3/4 | SR 13.235 Mbps | DR 18.2954 MHz | HD 720p | Format MPEG2 | Chroma Level 4:2:0 | Audio EmbeddedMercury Transit Gallery Page || ", "release_date": "2016-05-02T15:30:00-04:00", "update_date": "2023-05-03T13:48:40.431315-04:00", "main_image": { "id": 424753, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012200/a012232/Screen_Shot_2016-05-09_at_5.25.17_AM.png", "filename": "Screen_Shot_2016-05-09_at_5.25.17_AM.png", "media_type": "Image", "alt_text": "NASA scientist Dr. Stephen Rinehart talks about the May 9 Mercury transit, why transits are important and how scientists are using transits in the search for exoplanets. ", "width": 1712, "height": 900, "pixels": 1540800 }, "main_video": null, "main_credits": { "Produced by": [ { "name": "Claire Saravia", "employer": "NASA/GSFC" } ], "Edited by": [ { "name": "Stuart A. Snodgrass", "employer": "HTSI" } ] }, "progress": "Complete", "media_groups": [ { "id": 334149, "url": "https://svs.gsfc.nasa.gov/12232/#media_group_334149", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "

NASA will broadcast a stunning view of Mercury on May 9 as it journeys across the sun. The event, known as a transit, occurs when Mercury passes directly between Earth and the sun. This rare phenomenon will cause Mercury to look like a black dot gliding across the sun’s face. Mercury’s last transit was in 2006, and it won’t happen again until 2019!

Starting at 7:12 a.m. EDT, Mercury will spend more than seven hours travelling across the sun. NASA’s Solar Dynamics Observatory will take the first near real time, ultra-high definition images ever for this event. This is also an opportunity for NASA scientists to fine tune the spacecraft’s cameras, using a method that can only be done during a transit.

NASA scientists are available Monday, May 9 from 6:00 a.m. – 11:30 a.m. EDT to show your viewers amazing images of this event as it unfolds. Scientists will also share why transits are important, and how they’re being used to learn more about planets in our solar system—and beyond.

Scientists have been using transits for hundreds of years to study the planets in our solar system. When a planet crosses in front of the sun, it causes the sun’s brightness to dim. Scientists can measure similar brightness dips from other stars to find planets orbiting them, and can calculate their sizes, how far away the planets are from their stars, and even get hints of what they’re made of. Upcoming NASA missions will watch for transits outside our solar system in order to find new planets, including some that could resemble Earth.

****To book a window***\rContact Claire Saravia – claire.g.desaravia@nasa.gov\r
Suggested questions: \r\r

1.\tMercury is trekking across the sun today for the first time in 10 years. How can we see this transit?\r2.\tWhy are transits so important to astronomers? \r3.\tWhy does NASA watch the sun?\r4.\tNASA is using the transit method to study planets beyond our solar system. What do we expect to learn from future missions doing this? \r5.\tWhere can we learn more?
\r

HD Satellite Coordinates for AMC9-K17: AMC-9 Ku-band Xp 17 Slot AB| 83.0 ° W Longitude | DL 12045.8 MHz | Horizontal Polarity | QPSK/DVB-S | FEC 3/4 | SR 13.235 Mbps | DR 18.2954 MHz | HD 720p | Format MPEG2 | Chroma Level 4:2:0 | Audio Embedded

Mercury Transit Gallery Page

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Two different instruments are used: the Helioseismic and Magnetic Imager (HMI) which sees light in the visible range, and the Atmospheric Imaging Assembly (AIA) which sees light in several wavelengths in the ultraviolet range. To find out more information about these instruments, check out The Atmospheric Imaging Assembly Tutorial.Some artifacts may be visible from the compositing, but you have to look pretty closely to see them.The color table threshold was raised for these images, reducing the amount of noise visible in the images. Note: There is an interesting artifact worthy of mention and clarification, and that is as Venus crosses the solar limb, the limb appears to be visible through the planet in some of the imagers (most notably the ultraviolet channels). Discussion with the scientists who built the imagers suggest this might be 'crosstalk' between the readouts of the four CCD panels that make up a complete image. It is an artifact of the imaging system. || ", "release_date": "2012-06-11T14:00:00-04:00", "update_date": "2025-02-02T22:06:49.677445-05:00", "main_image": { "id": 475498, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003900/a003941/AIA171VenusTransit_stand.HD1080i.00500.jpg", "filename": "AIA171VenusTransit_stand.HD1080i.00500.jpg", "media_type": "Image", "alt_text": "A high-cadence view of Venus Transit in AIA 171 angstroms.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 10996, "url": "https://svs.gsfc.nasa.gov/10996/", "page_type": "Produced Video", "title": "SDO's Ultra-high Definition View of 2012 Venus Transit", "description": "Launched on Feb. 11, 2010, the Solar Dynamics Observatory, or SDO, is the most advanced spacecraft ever designed to study the sun. During its five-year mission, it will examine the sun's atmosphere, magnetic field and also provide a better understanding of the role the sun plays in Earth's atmospheric chemistry and climate. SDO provides images with resolution 8 times better than high-definition television and returns more than a terabyte of data each day.On June 5 2012, SDO collected images of the rarest predictable solar event—the transit of Venus across the face of the sun. This event lasted approximately 6 hours and happens in pairs eight years apart, which are separated from each other by 105 or 121 years. The last transit was in 2004 and the next will not happen until 2117.The videos and images displayed here are constructed from several wavelengths of extreme ultraviolet light and a portion of the visible spectrum. The red colored sun is the 304 angstrom ultraviolet, the golden colored sun is 171 angstrom, the magenta sun is 1700 angstrom, and the orange sun is filtered visible light. 304 and 171 show the atmosphere of the sun, which does not appear in the visible part of the spectrum. || ", "release_date": "2012-06-05T00:00:00-04:00", "update_date": "2025-01-12T00:19:38.737288-05:00", "main_image": { "id": 475645, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010900/a010996/AIA171A_Venus_Transit_20120605T211212new_web.jpg", "filename": "AIA171A_Venus_Transit_20120605T211212new_web.jpg", "media_type": "Image", "alt_text": "193 angstrom image from SDO", "width": 319, "height": 191, "pixels": 60929 } }, { "id": 3384, "url": "https://svs.gsfc.nasa.gov/3384/", "page_type": "Visualization", "title": "Mercury Transit from TRACE (White Light)", "description": "This is a view of the planet Mercury (a black dot) as seen by TRACE through its white light optical telescope. Because the TRACE field-of-view is much smaller than the solar disk, the spacecraft is repointed three times during the transit (creating the position jumps of the movie).This movie was generated from telemetry which has undergone a minimum of processing (to deliver quickly for the media) so data dropouts and other quick-processing artifacts may be visible. Special thanks to Dawn Myers of the TRACE project for this effort. || ", "release_date": "2006-11-08T00:00:00-05:00", "update_date": "2023-05-03T13:55:47.908606-04:00", "main_image": { "id": 509823, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003300/a003384/TRACE_Mercury_WL_720p_web.png", "filename": "TRACE_Mercury_WL_720p_web.png", "media_type": "Image", "alt_text": "Movie of Mercury passing across the disk of the Sun.", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 3386, "url": "https://svs.gsfc.nasa.gov/3386/", "page_type": "Visualization", "title": "Mercury Transit from SOHO/MDI", "description": "This is a view of the planet Mercury (the tiny moving black dot) as seen by the SOHO MDI.The narrow field-of-view for this camera mode necessitates the addition of black bars at the top and bottom of the frame to match HD720 resolution.This movie was generated from telemetry which has undergone a minimum of processing (to deliver quickly for the media) so data dropouts and other quick-processing artifacts may be visible. Special thanks to Steele Hill of the SOHO project for this effort. || ", "release_date": "2006-11-08T00:00:00-05:00", "update_date": "2023-05-03T13:55:48.106503-04:00", "main_image": { "id": 509843, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003300/a003386/SOHO_MDI_Mercury_720p_web.png", "filename": "SOHO_MDI_Mercury_720p_web.png", "media_type": "Image", "alt_text": "Movie of Mercury passing across the disk of the Sun.", "width": 320, "height": 180, "pixels": 57600 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }