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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185203613 (SMSS J172804.69-202131.8)

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Data releaseDR4
RA (deg)262.0196
Dec (deg)-20.3589
Galactic lon. (deg)5.145
Galactic lat. (deg)7.9440
E(B-V) (SFD98) (mag)0.750
E(B-V) (GNILC) (mag)0.609 ± 0.030
Nearest DR4 source 185203616 (6.4 arcs away)
2nd-nearest DR4 source 185203614 (7.2 arcs away)
3rd-nearest DR4 source 185203612 (8.7 arcs away)
Times observed17
Total bad pixels0
Observing flags1

Magnitudes

Filter u v g r i z
PSF mag. — — 19.494 ± 0.064 18.713 ± 0.034 18.185 ± 0.030 17.943 ± 0.031
Petrosian mag. — — 19.072 ± 0.073 18.348 ± 0.072 17.820 ± 0.136 17.547 ± 0.246

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 20190505165725 19.491 ± 0.070 0,0 100 2
g 20190506165109 19.551 ± 0.062 1,0 100 2
g 20190507143127 19.506 ± 0.078 0,0 100 2
r 20190505165926 18.652 ± 0.068 0,0 100 2
r 20190506165309 18.721 ± 0.057 1,0 100 2
r 20190507143327 18.751 ± 0.072 1,0 100 2
r 20190822094324 18.717 ± 0.066 1,0 100 2
i 20140729111202 17.943 ± 0.119 0,0 10 2
i 20150901084153 18.051 ± 0.063 17,0 100 2
i 20150901084554 18.134 ± 0.066 0,0 100 2
i 20190505170526 18.140 ± 0.071 0,0 100 2
i 20190509140533 18.131 ± 0.076 0,0 100 2
i 20190720124743 18.151 ± 0.093 1,0 100 2
i 20200513190610 18.301 ± 0.094 0,0 100 2
z 20140729111235 17.831 ± 0.140 0,0 20 2
z 20150901084353 17.819 ± 0.081 17,0 100 2
z 20150901084754 17.824 ± 0.084 0,0 100 2
z 20190505170726 17.961 ± 0.103 0,0 100 2
z 20190509140733 17.926 ± 0.103 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.31 0.54
GAIA source ID 4121065517665602304 4121065517641745792
Bp mag. -- 19.411
G mag. 19.557 19.291
Rp mag. -- 17.829
Bp/Rp excess -- 2.268
Parallax (mas) 1.014 ± 0.545 0.030 ± 0.378
PM RA (mas/yr) -2.579 ± 0.686 -3.897 ± 0.491
PM Dec (mas/yr) -3.637 ± 0.453 -2.914 ± 0.341
A.E.N. (mas) 0.341 ± 0.155 0.786 ± 1.260

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.507 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 16.684 ± 0.020
H -- ± --
K 16.133 ± 0.047
W1 16.15 ± 0.047
W2 15.879 ± 0.081
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.