Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184980995 (SMSS J172116.04-201438.7)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3168 |
|---|
| Dec (deg) | -20.2441 |
|---|
| Galactic lon. (deg) | 4.3568 |
|---|
| Galactic lat. (deg) | 9.3427 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
2275599614 (5.7 arcs away) |
| 2nd-nearest DR4 source |
2275599615 (7.2 arcs away) |
| 3rd-nearest DR4 source |
184980993 (8.9 arcs away) |
| Times observed | 18 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 0 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
18.583 ± 0.029 |
17.938 ± 0.025 |
17.558 ± 0.029 |
17.268 ± 0.023 |
| Petrosian mag. |
— |
— |
18.642 ± 0.054 |
18.091 ± 0.050 |
17.806 ± 0.056 |
17.617 ± 0.062 |
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 |
20180801105218 |
18.579 ± 0.051 |
0,0 |
100 |
2 |
| g |
20200224174822 |
18.663 ± 0.063 |
0,0 |
100 |
2 |
| g |
20200524153348 |
16.412 ± 0.056 |
0,0 |
5 |
3 |
| r |
20140626130951 |
18.009 ± 0.112 |
0,0 |
5 |
2 |
| r |
20160420170109 |
18.119 ± 0.166 |
0,0 |
5 |
2 |
| r |
20180801105419 |
17.990 ± 0.054 |
0,0 |
100 |
2 |
| r |
20180802115408 |
17.949 ± 0.047 |
0,0 |
100 |
2 |
| r |
20200524153415 |
15.947 ± 0.044 |
0,0 |
5 |
2 |
| i |
20140626131016 |
17.558 ± 0.091 |
0,0 |
10 |
2 |
| i |
20140627130852 |
17.588 ± 0.102 |
0,0 |
10 |
2 |
| i |
20150831085034 |
17.536 ± 0.066 |
0,0 |
100 |
2 |
| i |
20160420170134 |
17.770 ± 0.126 |
0,0 |
10 |
2 |
| i |
20180718120132 |
17.503 ± 0.052 |
16,0 |
100 |
2 |
| i |
20190416152010 |
17.616 ± 0.059 |
0,0 |
100 |
2 |
| i |
20200524153441 |
15.734 ± 0.041 |
0,0 |
10 |
2 |
| z |
20140626131048 |
17.511 ± 0.108 |
0,0 |
20 |
2 |
| z |
20140627130923 |
17.454 ± 0.113 |
0,0 |
20 |
2 |
| z |
20160420170204 |
17.267 ± 0.102 |
0,0 |
20 |
2 |
| z |
20180315174748 |
17.250 ± 0.088 |
0,0 |
20 |
2 |
| z |
20190416152212 |
17.327 ± 0.069 |
0,0 |
100 |
2 |
| z |
20200524153511 |
16.083 ± 0.059 |
0,0 |
20 |
3 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.09 |
5.06 |
| GAIA source ID |
4121972408576206720 |
4121972408539994368 |
| Bp mag. |
18.506 |
20.605 |
| G mag. |
18.014 |
19.915 |
| Rp mag. |
17.112 |
19.501 |
| Bp/Rp excess |
1.427 |
1.000 |
| Parallax (mas) |
-0.872 ± 0.453 |
0.335 ± 0.655 |
| PM RA (mas/yr) |
-1.627 ± 0.447 |
-3.383 ± 0.755 |
| PM Dec (mas/yr) |
-5.293 ± 0.305 |
-5.809 ± 0.447 |
| A.E.N. (mas) |
2.288 ± 62.362 |
0.188 ± 0.034 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
18.743
±
0.004
|
| r |
18.025
±
0.002
|
| i |
17.617
±
0.004
|
| z |
17.415
±
0.005
|
| Y |
--
±
--
|
| J |
16.073
±
0.010
|
| H |
--
±
--
|
| K |
15.406
±
0.021
|
| W1 |
15.491
±
0.033
|
| W2 |
15.718
±
0.101
|
| 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. |
