Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 179821177 (SMSS J172718.51-204925.9)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 261.8272 |
|---|
| Dec (deg) | -20.8239 |
|---|
| Galactic lon. (deg) | 4.6521 |
|---|
| Galactic lat. (deg) | 7.8423 |
|---|
| E(B-V) (SFD98) (mag) | 0.983 |
|---|
| E(B-V) (GNILC) (mag) | 0.903 ± 0.044 |
|---|
| Nearest DR4 source |
179821077 (6.4 arcs away) |
| 2nd-nearest DR4 source |
179821176 (6.5 arcs away) |
| 3rd-nearest DR4 source |
2268053148 (7.1 arcs away) |
| Times observed | 11 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 3 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
19.895 ± 0.068 |
18.921 ± 0.050 |
18.098 ± 0.034 |
17.582 ± 0.034 |
| Petrosian mag. |
— |
— |
19.735 ± 0.109 |
18.495 ± 0.079 |
17.903 ± 0.089 |
17.443 ± 0.115 |
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 |
20190506165109 |
19.926 ± 0.081 |
1,0 |
100 |
2 |
| r |
20190506165309 |
18.911 ± 0.064 |
3,0 |
100 |
2 |
| i |
20140729111202 |
18.232 ± 0.146 |
0,0 |
10 |
2 |
| i |
20150901084153 |
18.010 ± 0.058 |
3,0 |
100 |
2 |
| i |
20150901084554 |
18.047 ± 0.054 |
3,0 |
100 |
2 |
| i |
20190505170526 |
18.244 ± 0.064 |
19,0 |
100 |
2 |
| i |
20190509140533 |
18.176 ± 0.077 |
1,0 |
100 |
2 |
| z |
20140722114259 |
17.495 ± 0.103 |
0,0 |
20 |
2 |
| z |
20140729111235 |
17.672 ± 0.119 |
0,0 |
20 |
2 |
| z |
20150901084353 |
17.556 ± 0.065 |
3,0 |
100 |
2 |
| z |
20150901084754 |
17.581 ± 0.065 |
3,0 |
100 |
2 |
| z |
20160420170204 |
17.760 ± 0.159 |
0,0 |
20 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.35 |
1.32 |
| GAIA source ID |
4121011327992648192 |
4121011332320184064 |
| Bp mag. |
19.711 |
-- |
| G mag. |
18.764 |
20.394 |
| Rp mag. |
17.783 |
-- |
| Bp/Rp excess |
1.341 |
-- |
| Parallax (mas) |
0.307 ± 0.206 |
-0.368 ± 0.828 |
| PM RA (mas/yr) |
-3.568 ± 0.256 |
-7.545 ± 1.097 |
| PM Dec (mas/yr) |
-4.947 ± 0.180 |
-4.841 ± 0.763 |
| A.E.N. (mas) |
0.641 ± 2.118 |
0.518 ± 0.108 |
UV to IR data
Matching radius: 2"
| Filter |
Magnitude1 |
| FUV |
--
±
--
|
| NUV |
--
±
--
|
| u |
--
±
--
|
| g |
20.09
±
0.010
|
| r |
18.831
±
0.005
|
| i |
18.185
±
0.008
|
| z |
17.799
±
0.008
|
| Y |
--
±
--
|
| J |
16.294
±
0.015
|
| H |
--
±
--
|
| K |
15.480
±
0.024
|
| W1 |
15.747
±
0.04
|
| W2 |
15.897
±
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. |
