Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184980997 (SMSS J172116.28-201425.2)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3180 |
|---|
| Dec (deg) | -20.2399 |
|---|
| Galactic lon. (deg) | 4.3609 |
|---|
| Galactic lat. (deg) | 9.3441 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
2275599625 (2.2 arcs away) |
| 2nd-nearest DR4 source |
2275599626 (6.3 arcs away) |
| 3rd-nearest DR4 source |
2275599615 (13.3 arcs away) |
| Times observed | 22 |
|---|
| Total bad pixels | 3 |
|---|
| Observing flags | 3 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
18.138 ± 0.144 |
17.679 ± 0.163 |
17.368 ± 0.099 |
16.992 ± 0.113 |
| Petrosian mag. |
— |
— |
17.704 ± 0.199 |
17.045 ± 0.170 |
17.041 ± 0.130 |
16.824 ± 0.076 |
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 |
18.393 ± 0.048 |
0,0 |
100 |
2 |
| g |
20200224174822 |
18.402 ± 0.057 |
0,0 |
100 |
2 |
| r |
20140626130951 |
18.199 ± 0.131 |
3,0 |
5 |
2 |
| r |
20140719114202 |
17.543 ± 0.091 |
0,0 |
5 |
2 |
| r |
20180315174652 |
17.661 ± 0.087 |
0,0 |
5 |
2 |
| r |
20180801105419 |
17.634 ± 0.05 |
1,0 |
100 |
2 |
| r |
20180802115408 |
17.567 ± 0.044 |
2,0 |
100 |
2 |
| i |
20140626131016 |
17.587 ± 0.093 |
3,0 |
10 |
2 |
| i |
20140627130852 |
17.079 ± 0.070 |
0,0 |
10 |
2 |
| i |
20140719114228 |
17.136 ± 0.079 |
0,0 |
10 |
2 |
| i |
20150831085034 |
17.102 ± 0.052 |
0,0 |
100 |
2 |
| i |
20160420170134 |
17.500 ± 0.101 |
3,0 |
10 |
2 |
| i |
20180315174718 |
17.213 ± 0.075 |
0,0 |
10 |
2 |
| i |
20190416152010 |
17.140 ± 0.046 |
0,0 |
100 |
2 |
| i |
20210407183626 |
17.211 ± 0.090 |
0,0 |
10 |
2 |
| z |
20140626131048 |
17.256 ± 0.087 |
3,0 |
20 |
2 |
| z |
20140627130923 |
16.774 ± 0.067 |
0,0 |
20 |
2 |
| z |
20140719114300 |
16.842 ± 0.074 |
0,0 |
20 |
2 |
| z |
20160420170204 |
17.055 ± 0.085 |
3,3 |
20 |
2 |
| z |
20180315174748 |
16.822 ± 0.065 |
0,0 |
20 |
2 |
| z |
20190416152212 |
16.909 ± 0.055 |
0,0 |
100 |
2 |
| z |
20210407183658 |
16.859 ± 0.089 |
0,0 |
20 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
1.22 |
2.25 |
| GAIA source ID |
4121972408540025856 |
4121972404232415616 |
| Bp mag. |
18.673 |
18.750 |
| G mag. |
18.036 |
18.018 |
| Rp mag. |
17.273 |
17.146 |
| Bp/Rp excess |
1.253 |
1.309 |
| Parallax (mas) |
0.086 ± 0.181 |
0.115 ± 0.180 |
| PM RA (mas/yr) |
-1.738 ± 0.199 |
-4.763 ± 0.192 |
| PM Dec (mas/yr) |
-0.200 ± 0.126 |
-4.300 ± 0.124 |
| A.E.N. (mas) |
0.0 ± 0.0 |
0.0 ± 0.0 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
18.854
±
0.005
|
| r |
18.092
±
0.003
|
| i |
17.722
±
0.005
|
| z |
17.575
±
0.005
|
| Y |
--
±
--
|
| J |
16.279
±
0.012
|
| H |
--
±
--
|
| K |
15.676
±
0.026
|
| W1 |
14.755
±
0.016
|
| W2 |
14.937
±
0.03
|
| W3 |
12.363
±
--
|
| W4 |
8.798
±
--
|
| 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. |
