Object IDs in DR1 differ from DR2 and later releases.
DR4: Object 179829602 (SMSS J172557.09-204237.2)
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Data release | DR4 |
RA (deg) | 261.4879 |
Dec (deg) | -20.7104 |
Galactic lon. (deg) | 4.5733 |
Galactic lat. (deg) | 8.1700 |
E(B-V) (SFD98) (mag) | 0.876 |
E(B-V) (GNILC) (mag) | 0.721 ± 0.051 |
Nearest DR4 source |
179829512 (8.9 arcs away) |
2nd-nearest DR4 source |
179829619 (9.0 arcs away) |
3rd-nearest DR4 source |
179829513 (10.4 arcs away) |
Times observed | 8 |
Total bad pixels | 0 |
Observing flags | 0 |
Magnitudes
Filter |
u |
v |
g |
r |
i |
z |
PSF mag. |
— |
— |
20.170 ± 0.058 |
19.255 ± 0.085 |
18.542 ± 0.035 |
18.078 ± 0.045 |
Petrosian mag. |
— |
— |
20.848 ± 0.236 |
19.681 ± 0.222 |
18.809 ± 0.080 |
18.412 ± 0.112 |
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 |
20.352 ± 0.117 |
0,0 |
100 |
2 |
r |
20190505165926 |
19.503 ± 0.117 |
|
100 |
2 |
r |
20190506165309 |
19.296 ± 0.085 |
0,0 |
100 |
2 |
r |
20190507143327 |
19.379 ± 0.085 |
0,0 |
100 |
2 |
i |
20140729111202 |
18.29 ± 0.153 |
0,0 |
10 |
2 |
i |
20150901084153 |
18.661 ± 0.095 |
0,0 |
100 |
2 |
i |
20150901084554 |
18.636 ± 0.083 |
0,0 |
100 |
2 |
i |
20190505170526 |
18.669 ± 0.096 |
1024,0 |
100 |
2 |
z |
20150901084353 |
18.224 ± 0.109 |
0,0 |
100 |
2 |
z |
20150901084754 |
18.377 ± 0.12 |
1024,0 |
100 |
2 |
z |
20190505170726 |
18.304 ± 0.127 |
0,0 |
100 |
2 |
Gaia DR3 data
Matching radius: 15"
|
Best match |
Second match |
Distance (arcsec) |
0.03 |
4.11 |
GAIA source ID |
4121123168944664704 |
4121123104527874176 |
Bp mag. |
19.842 |
20.616 |
G mag. |
18.920 |
19.683 |
Rp mag. |
18.018 |
18.820 |
Bp/Rp excess |
1.276 |
1.239 |
Parallax (mas) |
0.499 ± 0.242 |
0.463 ± 0.372 |
PM RA (mas/yr) |
1.509 ± 0.343 |
0.556 ± 0.586 |
PM Dec (mas/yr) |
-2.633 ± 0.232 |
-5.626 ± 0.403 |
A.E.N. (mas) |
0.030 ± 0.004 |
0.0 ± 0.0 |
UV to IR data
Matching radius: 2"
Filter |
Magnitude1 |
FUV |
--
±
--
|
NUV |
--
±
--
|
u |
--
±
--
|
g |
20.306
±
0.011
|
r |
19.176
±
0.004
|
i |
18.542
±
0.010
|
z |
18.208
±
0.010
|
Y |
--
±
--
|
J |
16.630
±
0.020
|
H |
--
±
--
|
K |
15.912
±
0.036
|
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. |