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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185206931 (SMSS J172805.59-201329.5)

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Data releaseDR4
RA (deg)262.0233
Dec (deg)-20.2249
Galactic lon. (deg)5.2605
Galactic lat. (deg)8.0138
E(B-V) (SFD98) (mag)0.756
E(B-V) (GNILC) (mag)0.616 ± 0.031
Nearest DR4 source 185206881 (5.1 arcs away)
2nd-nearest DR4 source 185206882 (7.4 arcs away)
3rd-nearest DR4 source 185206933 (10.3 arcs away)
Times observed31
Total bad pixels3
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.802 ± 0.022 17.782 ± 0.024 17.075 ± 0.022 16.622 ± 0.022
Petrosian mag. — — 18.896 ± 0.033 17.788 ± 0.024 17.149 ± 0.036 16.603 ± 0.130

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 20140729111106 18.613 ± 0.131 0,0 5 2
g 20190505165725 18.753 ± 0.045 1,0 100 2
g 20190506165109 18.776 ± 0.038 1,0 100 2
g 20190507143127 18.803 ± 0.056 0,0 100 2
g 20190822094124 18.809 ± 0.049 1,0 100 2
r 20140722114203 18.000 ± 0.101 24,6 5 2
r 20140729111131 17.692 ± 0.080 0,0 5 2
r 20160420172325 17.649 ± 0.110 0,0 5 2
r 20190505165926 17.767 ± 0.045 1,0 100 2
r 20190506165309 17.772 ± 0.036 3,0 100 2
r 20190507143327 17.759 ± 0.050 3,0 100 2
r 20190822094324 17.754 ± 0.046 3,0 100 2
i 20140719115004 17.032 ± 0.068 0,0 10 2
i 20140722114229 19.236 ± 0.312 536,4 10 2
i 20140729111202 16.929 ± 0.056 0,0 10 2
i 20150901084153 16.967 ± 0.037 3,0 100 2
i 20150901084554 17.000 ± 0.038 3,5 100 2
i 20160420172350 17.132 ± 0.089 0,0 10 2
i 20190505170526 16.982 ± 0.043 0,0 100 2
i 20190508164002 17.069 ± 0.045 1,0 100 2
i 20190720124743 17.000 ± 0.074 1,0 100 2
i 20200524153441 17.213 ± 0.082 0,0 10 2
i 20210407183626 17.008 ± 0.073 0,0 10 2
z 20140719115035 16.633 ± 0.067 0,0 20 2
z 20140722114259 17.636 ± 0.105 24,6 20 2
z 20140729111235 16.572 ± 0.054 0,0 20 2
z 20150901084353 16.534 ± 0.038 0,0 100 2
z 20150901084754 16.571 ± 0.04 0,0 100 2
z 20160420172420 16.077 ± 0.048 0,3 20 2
z 20180605124707 16.750 ± 0.076 0,0 20 2
z 20180605125833 16.791 ± 0.089 0,0 20 2
z 20190505170726 16.535 ± 0.044 0,0 100 2
z 20190508164202 16.601 ± 0.041 0,0 100 2
z 20190720124943 16.529 ± 0.069 1,0 100 2
z 20210407183658 16.639 ± 0.074 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.57 0.87
GAIA source ID 4121255114643640832 4121255110335435904
Bp mag. 18.819 19.186
G mag. 18.297 18.339
Rp mag. 16.861 17.213
Bp/Rp excess 2.029 1.519
Parallax (mas) 0.190 ± 0.190 -0.096 ± 0.195
PM RA (mas/yr) -4.508 ± 0.201 -1.367 ± 0.220
PM Dec (mas/yr) -4.288 ± 0.145 -5.849 ± 0.150
A.E.N. (mas) 0.128 ± 0.145 0.239 ± 0.471

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.693 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 15.688 ± 0.008
H -- ± --
K 14.883 ± 0.015
W1 14.401 ± 0.02
W2 14.602 ± 0.038
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.