Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 184980993 (SMSS J172116.58-201443.1)
Find on 
| Data release | DR4 |
|---|
| RA (deg) | 260.3191 |
|---|
| Dec (deg) | -20.2453 |
|---|
| Galactic lon. (deg) | 4.3570 |
|---|
| Galactic lat. (deg) | 9.3402 |
|---|
| E(B-V) (SFD98) (mag) | 0.468 |
|---|
| E(B-V) (GNILC) (mag) | 0.392 ± 0.017 |
|---|
| Nearest DR4 source |
184980995 (8.9 arcs away) |
| 2nd-nearest DR4 source |
184980996 (10.2 arcs away) |
| 3rd-nearest DR4 source |
2275599618 (10.3 arcs away) |
| Times observed | 2 |
|---|
| Total bad pixels | 0 |
|---|
| Observing flags | 513 |
|---|
Magnitudes
| Filter |
u |
v |
g |
r |
i |
z |
| PSF mag. |
— |
— |
— |
18.653 ± 0.021 |
18.225 ± -- |
18.067 ± -- |
| Petrosian mag. |
— |
— |
— |
18.903 ± 0.078 |
18.775 ± -- |
18.553 ± -- |
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) |
| r |
20180801105419 |
18.648 ± 0.068 |
1,0 |
100 |
2 |
| r |
20180802115408 |
18.643 ± 0.060 |
0,0 |
100 |
2 |
| i |
20140626131016 |
18.71 ± 0.243 |
512,0 |
10 |
2 |
| z |
20140626131048 |
18.355 ± 0.226 |
512,0 |
20 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
| Distance (arcsec) |
0.13 |
3.28 |
| GAIA source ID |
4121972408576197376 |
4121972408579032832 |
| Bp mag. |
19.350 |
-- |
| G mag. |
18.621 |
-- |
| Rp mag. |
17.852 |
21.077 |
| Bp/Rp excess |
1.226 |
-- |
| Parallax (mas) |
0.108 ± 0.263 |
-- ± -- |
| PM RA (mas/yr) |
-2.660 ± 0.271 |
-- ± -- |
| PM Dec (mas/yr) |
-8.144 ± 0.179 |
-- ± -- |
| 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 |
19.377
±
0.007
|
| r |
18.553
±
0.003
|
| i |
18.207
±
0.007
|
| z |
18.023
±
0.008
|
| Y |
--
±
--
|
| J |
16.756
±
0.019
|
| H |
--
±
--
|
| K |
16.028
±
0.036
|
| W1 |
16.676
±
0.091
|
| W2 |
16.537
±
0.217
|
| 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. |
