Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 1218842781 (SMSS J172112.16-201455.6)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3006 |
|---|
| Dec (deg) | -20.2488 |
|---|
| Galactic lon. (deg) | 4.3443 |
|---|
| Galactic lat. (deg) | 9.3527 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
1218842782 (5.4 arcs away) |
| 2nd-nearest DR4 source |
2275599302 (6.7 arcs away) |
| 3rd-nearest DR4 source |
184980833 (8.5 arcs away) |
| Times observed | 10 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 3 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
19.007 ± 0.09 |
18.487 ± 0.099 |
18.245 ± 0.174 |
18.023 ± 0.245 |
| Petrosian mag. |
— |
— |
18.287 ± 0.072 |
17.742 ± 0.102 |
17.501 ± 0.406 |
18.034 ± 0.099 |
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 |
19.051 ± 0.054 |
1,0 |
100 |
2 |
| g |
20180801105218 |
19.065 ± 0.062 |
3,0 |
100 |
2 |
| g |
20190822092753 |
19.141 ± 0.061 |
1,0 |
100 |
2 |
| r |
20180718115528 |
18.504 ± 0.050 |
3,0 |
100 |
2 |
| r |
20180801105419 |
18.546 ± 0.065 |
1,0 |
100 |
2 |
| r |
20180802115408 |
18.583 ± 0.059 |
1,0 |
100 |
2 |
| r |
20190822092953 |
18.626 ± 0.055 |
1,0 |
100 |
2 |
| i |
20180718120132 |
18.127 ± 0.063 |
1,0 |
100 |
2 |
| i |
20190806103155 |
18.275 ± 0.085 |
0,0 |
100 |
2 |
| z |
20180718120334 |
18.063 ± 0.089 |
0,0 |
100 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.12 |
1.1 |
| GAIA source ID |
4121949142689526144 |
4121949146983999872 |
| Bp mag. |
19.156 |
-- |
| G mag. |
19.004 |
20.088 |
| Rp mag. |
18.010 |
-- |
| Bp/Rp excess |
1.682 |
-- |
| Parallax (mas) |
-1.344 ± 0.352 |
-- ± -- |
| PM RA (mas/yr) |
-3.203 ± 0.438 |
-- ± -- |
| PM Dec (mas/yr) |
-0.532 ± 0.283 |
-- ± -- |
| A.E.N. (mas) |
1.190 ± 5.002 |
0.0 ± 0.0 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
19.202
±
0.006
|
| r |
18.604
±
0.004
|
| i |
18.258
±
0.008
|
| z |
18.233
±
0.010
|
| Y |
--
±
--
|
| J |
17.232
±
0.028
|
| H |
--
±
--
|
| K |
16.647
±
0.063
|
| 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. |
