Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184980981 (SMSS J172112.85-201447.9)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3036 |
|---|
| Dec (deg) | -20.2466 |
|---|
| Galactic lon. (deg) | 4.3477 |
|---|
| Galactic lat. (deg) | 9.3517 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
1218842997 (7.9 arcs away) |
| 2nd-nearest DR4 source |
184980982 (8.2 arcs away) |
| 3rd-nearest DR4 source |
2275599593 (8.4 arcs away) |
| Times observed | 9 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 0 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
19.434 ± 0.071 |
18.711 ± 0.028 |
18.233 ± 0.040 |
18.044 ± 0.067 |
| Petrosian mag. |
— |
— |
19.779 ± 0.222 |
18.996 ± 0.095 |
18.482 ± 0.076 |
18.432 ± 0.111 |
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 |
19.463 ± 0.066 |
0,0 |
100 |
2 |
| g |
20190822092753 |
19.572 ± 0.080 |
0,0 |
100 |
2 |
| r |
20180718115528 |
18.72 ± 0.054 |
0,0 |
100 |
2 |
| r |
20180801105419 |
18.828 ± 0.075 |
0,0 |
100 |
2 |
| r |
20180802115408 |
18.787 ± 0.065 |
0,0 |
100 |
2 |
| r |
20190822092953 |
18.843 ± 0.063 |
0,0 |
100 |
2 |
| i |
20140626131016 |
18.577 ± 0.215 |
512,0 |
10 |
2 |
| i |
20180718120132 |
18.310 ± 0.069 |
0,0 |
100 |
2 |
| i |
20190806103155 |
18.537 ± 0.105 |
1040,0 |
100 |
2 |
| z |
20140626131048 |
18.133 ± 0.184 |
0,0 |
20 |
2 |
| z |
20180718120334 |
18.254 ± 0.102 |
0,0 |
100 |
2 |
| z |
20190806103356 |
18.267 ± 0.117 |
16,0 |
100 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.13 |
6.08 |
| GAIA source ID |
4121949142692805376 |
4121949146983991552 |
| Bp mag. |
19.285 |
20.804 |
| G mag. |
18.639 |
20.100 |
| Rp mag. |
17.913 |
19.467 |
| Bp/Rp excess |
1.221 |
1.134 |
| Parallax (mas) |
-0.081 ± 0.225 |
1.833 ± 0.677 |
| PM RA (mas/yr) |
-1.499 ± 0.254 |
1.392 ± 0.763 |
| PM Dec (mas/yr) |
-1.680 ± 0.168 |
-6.136 ± 0.544 |
| A.E.N. (mas) |
0.306 ± 0.495 |
0.0 ± 0.0 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
19.530
±
0.007
|
| r |
18.777
±
0.004
|
| i |
18.462
±
0.008
|
| z |
18.274
±
0.008
|
| Y |
--
±
--
|
| J |
16.981
±
0.023
|
| H |
--
±
--
|
| K |
16.337
±
0.048
|
| 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. |
