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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185152206 (SMSS J172720.56-201859.5)

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Data releaseDR4
RA (deg)261.8357
Dec (deg)-20.3165
Galactic lon. (deg)5.0863
Galactic lat. (deg)8.1118
E(B-V) (SFD98) (mag)0.818
E(B-V) (GNILC) (mag)0.592 ± 0.029
Nearest DR4 source 185152205 (6.9 arcs away)
2nd-nearest DR4 source 185152650 (8.9 arcs away)
3rd-nearest DR4 source 185152209 (13.6 arcs away)
Times observed18
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 18.984 ± 0.018 18.302 ± 0.021 17.778 ± 0.014 17.490 ± 0.022
Petrosian mag. — — 19.052 ± 0.057 18.318 ± 0.067 17.864 ± 0.048 17.613 ± 0.068

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 18.968 ± 0.042 0,0 100 2
g 20190507143127 18.999 ± 0.055 0,0 100 2
g 20190822094124 19.010 ± 0.054 0,0 100 2
r 20140722114203 18.332 ± 0.139 512,0 5 2
r 20140729111131 18.365 ± 0.139 512,0 5 2
r 20190506165309 18.262 ± 0.044 0,0 100 2
r 20190507143327 18.301 ± 0.053 0,0 100 2
r 20190822094324 18.371 ± 0.056 0,0 100 2
i 20140722114229 17.889 ± 0.115 0,0 10 2
i 20140729111202 17.775 ± 0.104 0,0 10 2
i 20150901084153 17.751 ± 0.049 0,0 100 2
i 20150901084554 17.760 ± 0.052 0,0 100 2
i 20160420170134 17.875 ± 0.140 0,0 10 2
i 20190508164002 17.823 ± 0.064 0,0 100 2
i 20200513190610 17.848 ± 0.065 0,0 100 2
z 20140722114259 17.570 ± 0.109 0,0 20 2
z 20140729111235 17.430 ± 0.100 0,0 20 2
z 20150901084353 17.497 ± 0.061 0,0 100 2
z 20150901084754 17.442 ± 0.063 0,0 100 2
z 20190508164202 17.553 ± 0.074 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.19 0.39
GAIA source ID 4121255492601585280 4121255492601585408
Bp mag. 18.955 18.907
G mag. 19.135 19.227
Rp mag. 17.400 17.423
Bp/Rp excess 2.936 3.192
Parallax (mas) -- ± -- -- ± --
PM RA (mas/yr) -- ± -- -- ± --
PM Dec (mas/yr) -- ± -- -- ± --
A.E.N. (mas) 2.454 ± 9.175 3.616 ± 17.981

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.269 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 16.265 ± 0.013
H -- ± --
K 15.765 ± 0.033
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.