Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184981253 (SMSS J172112.64-201403.5)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3027 |
|---|
| Dec (deg) | -20.2343 |
|---|
| Galactic lon. (deg) | 4.3576 |
|---|
| Galactic lat. (deg) | 9.3592 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
1218843270 (6.0 arcs away) |
| 2nd-nearest DR4 source |
1218843545 (8.9 arcs away) |
| 3rd-nearest DR4 source |
2275600205 (9.1 arcs away) |
| Times observed | 15 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 0 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
18.811 ± 0.020 |
18.249 ± 0.021 |
17.861 ± 0.025 |
17.657 ± 0.030 |
| Petrosian mag. |
— |
— |
18.647 ± 0.088 |
18.208 ± 0.042 |
18.062 ± 0.086 |
17.909 ± 0.074 |
2 x 2 arcmin
Image cutouts
See all image cutouts for this object here.
Images shown are the best images available from DR4, as determined by their coverage and approximate photometric zero-point.
Photometry measurements
| Filter |
Image ID |
Magnitude (APC05) |
Flags |
Exp time (s) |
Image Quality
(1=best to 3) |
| g |
20180718115326 |
18.763 ± 0.048 |
0,0 |
100 |
2 |
| g |
20180801105218 |
18.834 ± 0.056 |
0,0 |
100 |
2 |
| g |
20190822092753 |
18.805 ± 0.051 |
0,0 |
100 |
2 |
| g |
20200224174822 |
18.829 ± 0.069 |
0,0 |
100 |
2 |
| r |
20140626130951 |
18.574 ± 0.179 |
0,0 |
5 |
2 |
| r |
20180718115528 |
18.195 ± 0.045 |
0,0 |
100 |
2 |
| r |
20180801105419 |
18.327 ± 0.059 |
0,0 |
100 |
2 |
| r |
20180802115408 |
18.269 ± 0.052 |
0,0 |
100 |
2 |
| r |
20190822092953 |
18.270 ± 0.046 |
0,0 |
100 |
2 |
| i |
20140626131016 |
17.956 ± 0.125 |
0,0 |
10 |
2 |
| i |
20150831085034 |
17.920 ± 0.085 |
0,0 |
100 |
2 |
| i |
20160420170134 |
18.156 ± 0.176 |
512,0 |
10 |
2 |
| i |
20180718120132 |
17.861 ± 0.057 |
0,0 |
100 |
2 |
| i |
20180804082838 |
17.950 ± 0.068 |
1041,0 |
100 |
2 |
| i |
20190806103155 |
18.042 ± 0.072 |
1040,0 |
100 |
2 |
| z |
20140626131048 |
17.732 ± 0.129 |
0,0 |
20 |
2 |
| z |
20160420170204 |
17.479 ± 0.123 |
0,0 |
20 |
2 |
| z |
20180718120334 |
17.653 ± 0.069 |
0,0 |
100 |
2 |
| z |
20190806103356 |
17.873 ± 0.086 |
16,0 |
100 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.12 |
1.99 |
| GAIA source ID |
4121972610411572224 |
4121972614702874368 |
| Bp mag. |
18.817 |
20.542 |
| G mag. |
18.238 |
20.112 |
| Rp mag. |
17.538 |
19.407 |
| Bp/Rp excess |
1.228 |
1.293 |
| Parallax (mas) |
0.087 ± 0.203 |
1.029 ± 0.908 |
| PM RA (mas/yr) |
-6.200 ± 0.213 |
-2.386 ± 0.903 |
| PM Dec (mas/yr) |
-3.997 ± 0.139 |
-0.883 ± 0.650 |
| A.E.N. (mas) |
0.179 ± 0.272 |
0.0 ± 0.0 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
18.883
±
0.005
|
| r |
18.253
±
0.003
|
| i |
17.962
±
0.006
|
| z |
17.864
±
0.007
|
| Y |
--
±
--
|
| J |
16.669
±
0.017
|
| H |
--
±
--
|
| K |
16.127
±
0.039
|
| W1 |
--
±
--
|
| W2 |
--
±
--
|
| W3 |
--
±
--
|
| W4 |
--
±
--
|
| 1Magnitude sources |
| FUV/NUV: |
AB mag (calibrated) from GALEX |
| ugriz: |
AB mag (Kron) from NOAO Source Catalog |
| YJHK: |
Vega mag from VISTA (2" aperture) or 2MASS PSC |
| W1-W4: |
Vega mag from CatWISE2020 or AllWISE (profile mag). No error value
means the stated value is an upper limit. |
