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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185158831 (SMSS J172701.24-200446.6)

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Data releaseDR4
RA (deg)261.7552
Dec (deg)-20.0797
Galactic lon. (deg)5.2455
Galactic lat. (deg)8.3040
E(B-V) (SFD98) (mag)1.057
E(B-V) (GNILC) (mag)0.799 ± 0.045
Nearest DR4 source 2275862947 (1.7 arcs away)
2nd-nearest DR4 source 185158811 (5.2 arcs away)
3rd-nearest DR4 source 185158833 (8.4 arcs away)
Times observed17
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.244 ± 0.103 18.293 ± 0.124 17.482 ± 0.118 17.123 ± 0.142
Petrosian mag. — — 19.266 ± 0.057 18.128 ± 0.089 17.339 ± 0.117 17.217 ± 0.051

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 19.463 ± 0.063 0,0 100 2
g 20190506165109 19.362 ± 0.054 0,0 100 2
g 20190507143127 19.451 ± 0.071 0,0 100 2
g 20190822094124 19.431 ± 0.060 0,0 100 2
r 20190505165926 18.547 ± 0.057 0,0 100 2
r 20190506165309 18.524 ± 0.051 0,0 100 2
r 20190507143327 18.588 ± 0.060 0,0 100 2
r 20190822094324 18.572 ± 0.055 1,0 100 2
i 20150901084153 17.760 ± 0.049 2,0 100 2
i 20190505170526 17.811 ± 0.054 0,0 100 2
i 20190508164002 18.026 ± 0.073 16,0 100 2
i 20190509140533 17.799 ± 0.067 0,0 100 2
i 20190720124743 17.792 ± 0.079 0,0 100 2
i 20200513190610 17.754 ± 0.057 0,0 100 2
z 20150901084353 17.403 ± 0.057 0,0 100 2
z 20190505170726 17.428 ± 0.065 0,0 100 2
z 20190508164202 17.574 ± 0.075 16,0 100 2
z 20190509140733 17.408 ± 0.075 0,0 100 2
z 20190720124943 17.370 ± 0.078 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 1.35 1.53
GAIA source ID 4121275386893268992 4121275382583183616
Bp mag. 19.989 20.037
G mag. 18.986 19.165
Rp mag. 18.029 18.103
Bp/Rp excess 1.304 1.444
Parallax (mas) 0.202 ± 0.252 0.322 ± 0.348
PM RA (mas/yr) 0.418 ± 0.296 -1.929 ± 0.407
PM Dec (mas/yr) -4.344 ± 0.210 -5.839 ± 0.276
A.E.N. (mas) 0.0 ± 0.0 0.297 ± 0.251

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 19.170 ± 0.005
i -- ± --
z -- ± --
Y -- ± --
J 16.686 ± 0.020
H -- ± --
K 16.082 ± 0.043
W1 15.071 ± 0.024
W2 15.304 ± 0.055
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.