{
"id": 4856,
"url": "https://svs.gsfc.nasa.gov/4856/",
"page_type": "Visualization",
"title": "An Elsewhere Starfield",
"description": "The randomized star map in celestial coordinates, at five different resolutions. (Or more generically: The galactic plane is tilted 63° in the coordinate frame of the image.) || starmap_random_2020_4k_print.jpg (1024x512) [37.1 KB] || starmap_random_2020_4k_searchweb.png (320x180) [67.0 KB] || starmap_random_2020_4k_thm.png (80x40) [4.3 KB] || starmap_random_2020_4k.exr (4096x2048) [34.1 MB] || starmap_random_2020_8k.exr (8192x4096) [123.8 MB] || starmap_random_2020_16k.exr (16384x8192) [423.3 MB] || starmap_random_2020_32k.exr (32768x16384) [1.4 GB] || starmap_random_2020_64k.exr (65536x32768) [3.8 GB] || ",
"release_date": "2020-09-09T13:00:00-04:00",
"update_date": "2023-05-03T13:44:43.323226-04:00",
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"width": 1024,
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"name": "Ernie Wright",
"employer": "USRA"
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"description": "In the spirit of the original, this is a randomized star map suitable as a backdrop for views of space from places that are far from Earth. While the Gaia Data Release 2 star catalog still provides the galactic background, the stars of the Tycho 2 catalog have been randomly moved around so that no recognizable constellation figures remain. Using Tycho 2 in this way ensures that the image contains a plausible statistical distribution of star brightness and color. Tycho 2 stars down to magnitude 11.5 are included, with brighter stars moving farther than dim ones. Although the star positions are randomized, they are the same across all of the images.
The starfield is offered in two different coordinate frames. The first is in celestial coordinates, in which the x-axis of the image corresponds to Earth's equator and the galactic plane is tilted 63°. The second version of the starfield is in galactic coordinates, in which the x-axis of the image and the plane of the galaxy are parallel. All of the images are in OpenEXR's half-float format, which provides higher dynamic range in a linear colorspace while easily accommodating very large files. Most 3D animation and HDR image processing software can read OpenEXR.",
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"caption": "",
"description": "The randomized star map in galactic coordinates.",
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"id": 382809,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_4k_gal_print.jpg",
"filename": "starmap_random_2020_4k_gal_print.jpg",
"media_type": "Image",
"alt_text": "The randomized star map in galactic coordinates.",
"width": 1024,
"height": 512,
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},
{
"id": 225896,
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"instance": {
"id": 382804,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_4k_gal.exr",
"filename": "starmap_random_2020_4k_gal.exr",
"media_type": "Image",
"alt_text": "The randomized star map in galactic coordinates.",
"width": 4096,
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},
{
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"id": 382805,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_8k_gal.exr",
"filename": "starmap_random_2020_8k_gal.exr",
"media_type": "Image",
"alt_text": "The randomized star map in galactic coordinates.",
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"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_16k_gal.exr",
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"alt_text": "The randomized star map in galactic coordinates.",
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"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_32k_gal.exr",
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"alt_text": "The randomized star map in galactic coordinates.",
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"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004800/a004856/starmap_random_2020_64k_gal.exr",
"filename": "starmap_random_2020_64k_gal.exr",
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"alt_text": "The randomized star map in galactic coordinates.",
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"studio": "svs",
"funding_sources": [
"LRO"
],
"credits": [
{
"role": "Visualizer",
"people": [
{
"name": "Ernie Wright",
"employer": "USRA"
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{
"name": "Tom Bridgman",
"employer": "Global Science and Technology, Inc."
}
]
},
{
"role": "Technical support",
"people": [
{
"name": "Laurence Schuler",
"employer": "ADNET Systems, Inc."
},
{
"name": "Ian Jones",
"employer": "ADNET Systems, Inc."
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"missions": [],
"series": [
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"tapes": [],
"papers": [],
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{
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"common_name": "Tycho Catalogue",
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"url": "http://archive.eso.org/ASTROM/",
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"type": "Database",
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"description": "Catalog of 1.7 billion stars brighter than magnitude 21.",
"credit": "Gaia team/ESA",
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"keywords": [
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"related": [
{
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"url": "https://svs.gsfc.nasa.gov/4851/",
"page_type": "Visualization",
"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] || ",
"release_date": "2020-09-09T13:15:00-04:00",
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{
"id": 4451,
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"title": "The Alternative Night Sky - Another Time - Another Place",
"description": "A low-magnitude threshold version of the skymap. The threshold magnitude is 3.0 so the galactic disk is very faint. Good for when you just want the brighter stars and have a wide field of view. || RandomizedSkymap.t3_04096x02048_print.jpg (1024x512) [157.4 KB] || RandomizedSkymap.t3_04096x02048_searchweb.png (320x180) [78.0 KB] || RandomizedSkymap.t3_04096x02048_thm.png (80x40) [4.1 KB] || RandomizedSkymap.t3_04096x02048.tif (4096x2048) [24.0 MB] || RandomizedSkymap.t3_08192x04096.tif (8192x4096) [96.0 MB] || ",
"release_date": "2017-08-01T00:00:00-04:00",
"update_date": "2023-05-03T13:47:30.591412-04:00",
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"filename": "RandomizedSkymap.t3_04096x02048_print.jpg",
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"alt_text": "A low-magnitude threshold version of the skymap. The threshold magnitude is 3.0 so the galactic disk is very faint. Good for when you just want the brighter stars and have a wide field of view.",
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}