Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184980989 (SMSS J172113.80-201433.6)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3075 |
|---|
| Dec (deg) | -20.2427 |
|---|
| Galactic lon. (deg) | 4.3532 |
|---|
| Galactic lat. (deg) | 9.3507 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
1218843013 (4.3 arcs away) |
| 2nd-nearest DR4 source |
184980991 (7.9 arcs away) |
| 3rd-nearest DR4 source |
1218843018 (8.4 arcs away) |
| Times observed | 11 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 3 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
18.71 ± 0.114 |
17.944 ± 0.193 |
17.907 ± 0.087 |
17.727 ± 0.140 |
| Petrosian mag. |
— |
— |
18.234 ± 0.164 |
17.815 ± 0.092 |
17.299 ± 0.163 |
17.283 ± 0.329 |
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 |
18.886 ± 0.050 |
1,0 |
100 |
2 |
| g |
20190822092753 |
18.836 ± 0.052 |
1,0 |
100 |
2 |
| g |
20200224174822 |
18.867 ± 0.070 |
1,0 |
100 |
2 |
| r |
20140626130951 |
18.199 ± 0.130 |
0,0 |
5 |
2 |
| r |
20180718115528 |
18.232 ± 0.045 |
3,0 |
100 |
2 |
| r |
20180802115408 |
18.242 ± 0.051 |
1,0 |
100 |
2 |
| i |
20140626131016 |
17.949 ± 0.125 |
0,0 |
10 |
2 |
| i |
20150831085034 |
17.805 ± 0.078 |
1,0 |
100 |
2 |
| i |
20180718120132 |
17.749 ± 0.055 |
3,0 |
100 |
2 |
| z |
20140626131048 |
17.835 ± 0.142 |
0,0 |
20 |
2 |
| z |
20180718120334 |
17.503 ± 0.064 |
1,0 |
100 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.44 |
0.56 |
| GAIA source ID |
4121949142716876928 |
4121949147032177792 |
| Bp mag. |
19.009 |
-- |
| G mag. |
18.903 |
19.329 |
| Rp mag. |
17.665 |
-- |
| Bp/Rp excess |
1.973 |
-- |
| Parallax (mas) |
-0.009 ± 0.583 |
-- ± -- |
| PM RA (mas/yr) |
-10.722 ± 0.650 |
-- ± -- |
| PM Dec (mas/yr) |
-8.146 ± 0.450 |
-- ± -- |
| A.E.N. (mas) |
2.550 ± 22.644 |
0.358 ± 0.215 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
18.981
±
0.008
|
| r |
18.168
±
0.003
|
| i |
17.713
±
0.007
|
| z |
17.660
±
0.007
|
| Y |
--
±
--
|
| J |
16.772
±
0.019
|
| H |
--
±
--
|
| K |
16.172
±
0.041
|
| W1 |
15.408
±
0.022
|
| W2 |
15.606
±
0.054
|
| 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. |
