Guide Star Catalog 2.3 Cone Search
The Guide Star Catalog II (GSC-II) is an all-sky optical catalog based on 1" resolution scans of the photographic Sky Survey plates, at two epochs and three bandpasses, from the Palomar and UK Schmidt telescopes. This all-sky catalog will ultimately contains positions, proper motions, classifications, and magnitudes in multiple bandpasses for almost a billion objects down to approximately Jpg=21, Fpg=20. The GSC-II is currently used for HST Bright Object Protection and HST pointing. Looking ahead, the GSC-II will form the basis of the Guide Star Catalog for JWST. This was constructed in collaboration with ground-based observatories for use with the GEMINI, VLT and GALILEO telescopes
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"026:00"
]
|
| contactPoint |
{
"fn": "Tess Jaffe",
"@type": "vcard:Contact",
"hasEmail": "mailto:tess.jaffe@nasa.gov"
}
|
| description | The Guide Star Catalog II (GSC-II) is an all-sky optical catalog based on 1" resolution scans of the photographic Sky Survey plates, at two epochs and three bandpasses, from the Palomar and UK Schmidt telescopes. This all-sky catalog will ultimately contains positions, proper motions, classifications, and magnitudes in multiple bandpasses for almost a billion objects down to approximately Jpg=21, Fpg=20. The GSC-II is currently used for HST Bright Object Protection and HST pointing. Looking ahead, the GSC-II will form the basis of the Guide Star Catalog for JWST. This was constructed in collaboration with ground-based observatories for use with the GEMINI, VLT and GALILEO telescopes |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "http://gsss.stsci.edu/Catalogs/GSC/GSC2/GSC2.htm"
},
{
"@type": "dcat:Distribution",
"title": "Data Information (Unknown Format)",
"format": "BIN",
"mediaType": "application/octet-stream",
"downloadURL": "http://gsss.stsci.edu/webservices/vo/ConeSearch.aspx?CAT=GSC23&"
}
]
|
| identifier | ivo://archive.stsci.edu/gsc/gsc2.3 |
| keyword |
[
"na"
]
|
| landingPage | http://gsss.stsci.edu/Catalogs/GSC/GSC2/GSC2.htm |
| modified | 2026-02-10 |
| programCode |
[
"026:000"
]
|
| publisher |
{
"name": "MAST: Mikulski Archive at Space Telescope",
"@type": "org:Organization"
}
|
| theme |
[
"Astrophysics"
]
|
| title | Guide Star Catalog 2.3 Cone Search |
