Page History
...
Original GSC 2
Original GSC 2 (2.3.3) sky coverage. Scale is logarithmic with log10(counts)sources/square) degree.
| Equatorial Coordinates | Galactic Coordiantes |
|---|---|
|
|
GSC 2.4.1
Anticipated GSC 2.4.1 coverage with original GSC233 in grey and additional catalogs overlaid in color: SDSS-DR13 (blue) + VHS-DR4 (green) + ATLAS-DR3 (red) + VIKING-DR2 (yellow) + 2MASS-6x (purple) + KIDS-DR3 (cyan).
Other catalogs included as part of GSC 2.4.1 are all-sky (; ie, GAIA-DR1, UCAC5, 2MASS-PSC, 2MASS-XSC). Note that all UCAC5 are GAIA-DR1 sources.
| Equatorial Coordinates | Galactic Coordinates |
|---|---|
|
|
Coverage as function of magnitude
These figures are generated from the latest version of the GSC2 catalog, which includes GAIA-DR1, UCAC5, 2MASS, and SDSS.
All Sources
...
...
...
...
GSC 2.4.2
GSC 2.4.2 includes additional catalogs improving coverage as can be seen below. For clarity we omit those included as part of GSC 2.4.1 (above). New catalogs include: PanSTARRS-DR1 (blue), SkyMapper DR1 (red), and GALEX AIS (green)
NIR 12-18 mag Sources
NIR mag refers to the first magnitude present in the list J, H, Y, Z, z, Npg, i, Ks, K (lower case z, i from SDSS; Npg is photographic). This is roughly in order of proximity to J.
| Equatorial Coordinates | Galactic Coordinates |
|---|
|
NIR <19 mag Sources
As above, in terms of defining what is NIR.
...
...
...
...
|
The current sky coverage for GSC 2.4.2 is below. Scale is logarithmic with log10(sources/square) degree.
OPT <17.2 mag Sources
OPT mag refers to the first magnitude present in the list G, r, V, g, R, Fpg, Epg, Jpg (lower case r, g from SDSS; Fpg, Epg, Jpg are photographic bands)
| Equatorial Coordinates | Galactic Coordinates |
|---|
|
|
|
|
