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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185152658 (SMSS J172720.55-201832.2)

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Data releaseDR4
RA (deg)261.8356
Dec (deg)-20.3090
Galactic lon. (deg)5.0926
Galactic lat. (deg)8.1159
E(B-V) (SFD98) (mag)0.818
E(B-V) (GNILC) (mag)0.592 ± 0.029
Nearest DR4 source 185152652 (6.2 arcs away)
2nd-nearest DR4 source 185152651 (9.7 arcs away)
3rd-nearest DR4 source 185152654 (10.0 arcs away)
Times observed35
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.817 ± 0.013 17.127 ± 0.019 16.596 ± 0.010 16.306 ± 0.012
Petrosian mag. — — 17.825 ± 0.025 17.114 ± 0.040 16.611 ± 0.018 16.325 ± 0.042

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 20140719114908 17.89 ± 0.079 0,0 5 2
g 20140722114132 17.819 ± 0.070 0,0 5 2
g 20140729111106 17.847 ± 0.071 0,0 5 2
g 20190506165109 17.808 ± 0.028 3,0 100 2
g 20190507143127 17.802 ± 0.040 3,0 100 2
g 20190822094124 18.100 ± 0.041 17,0 100 2
g 20210407183532 17.896 ± 0.097 512,0 5 2
r 20140719114939 17.061 ± 0.059 0,0 5 2
r 20140722114203 17.186 ± 0.057 0,0 5 2
r 20140729111131 17.132 ± 0.054 0,0 5 2
r 20160420170109 17.295 ± 0.079 0,0 5 2
r 20190506165309 17.091 ± 0.032 3,0 100 2
r 20190507143327 17.107 ± 0.041 3,0 100 2
r 20190822094324 17.095 ± 0.043 3,0 100 2
r 20200524153415 17.245 ± 0.076 0,0 5 2
r 20210407183558 17.393 ± 0.086 0,0 5 2
i 20140719115004 16.573 ± 0.048 0,0 10 2
i 20140722114229 16.562 ± 0.047 0,0 10 2
i 20140729111202 16.577 ± 0.046 0,0 10 2
i 20150901084153 16.552 ± 0.032 0,0 100 2
i 20150901084554 16.563 ± 0.035 0,0 100 2
i 20160420170134 16.574 ± 0.047 0,0 10 2
i 20180605124636 16.624 ± 0.056 0,0 10 2
i 20190508164002 16.585 ± 0.039 3,0 100 2
i 20200513190610 16.605 ± 0.034 3,0 100 2
i 20200524153441 16.652 ± 0.055 0,0 10 2
i 20210407183626 16.645 ± 0.057 0,0 10 2
z 20140719115035 16.280 ± 0.052 0,0 20 2
z 20140722114259 16.253 ± 0.044 0,0 20 2
z 20140729111235 16.265 ± 0.046 0,0 20 2
z 20150901084353 16.277 ± 0.033 0,0 100 2
z 20150901084754 16.284 ± 0.037 0,0 100 2
z 20160420170204 16.312 ± 0.051 0,0 20 2
z 20180605124707 16.423 ± 0.057 0,0 20 2
z 20190508164202 16.307 ± 0.037 0,0 100 2
z 20200513190811 16.300 ± 0.042 2,0 100 2
z 20200524153511 16.398 ± 0.065 0,0 20 3
z 20210407183658 16.350 ± 0.061 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.21 2.22
GAIA source ID 4121255660087242624 4121255664445850368
Bp mag. 17.740 20.071
G mag. 17.087 19.651
Rp mag. 16.258 18.403
Bp/Rp excess 1.301 1.821
Parallax (mas) 0.432 ± 0.108 -1.200 ± 0.672
PM RA (mas/yr) 0.828 ± 0.112 -1.051 ± 0.744
PM Dec (mas/yr) -2.034 ± 0.081 -0.961 ± 0.504
A.E.N. (mas) 0.109 ± 0.451 1.411 ± 2.625

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.220 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 15.123 ± 0.005
H -- ± --
K 14.577 ± 0.012
W1 14.653 ± 0.015
W2 14.845 ± 0.029
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.