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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185161354 (SMSS J172728.38-200851.2)

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Data releaseDR4
RA (deg)261.8685
Dec (deg)-20.1476
Galactic lon. (deg)5.2464
Galactic lat. (deg)8.1778
E(B-V) (SFD98) (mag)0.886
E(B-V) (GNILC) (mag)0.651 ± 0.027
Nearest DR4 source 185161355 (3.2 arcs away)
2nd-nearest DR4 source 185161353 (9.1 arcs away)
3rd-nearest DR4 source 185161457 (12.2 arcs away)
Times observed35
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.285 ± 0.105 18.016 ± 0.052 17.471 ± 0.018 17.233 ± 0.016
Petrosian mag. — — 18.158 ± 0.023 17.553 ± 0.076 17.281 ± 0.080 17.130 ± 0.090

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 18.324 ± 0.101 0,0 5 2
g 20190505165725 18.550 ± 0.042 0,0 100 2
g 20190506165109 18.568 ± 0.035 0,0 100 2
g 20190507143127 18.582 ± 0.047 0,0 100 2
g 20190822094124 18.604 ± 0.046 0,0 100 2
r 20140722114203 18.137 ± 0.117 0,0 5 2
r 20140729111131 18.145 ± 0.116 0,0 5 2
r 20190505165926 17.962 ± 0.049 0,0 100 2
r 20190506165309 17.930 ± 0.038 0,0 100 2
r 20190507143327 17.971 ± 0.047 0,0 100 2
r 20190822094324 17.960 ± 0.049 0,0 100 2
i 20140719115004 17.390 ± 0.083 0,0 10 2
i 20140722114229 17.412 ± 0.079 0,0 10 2
i 20140729111202 17.520 ± 0.085 0,0 10 2
i 20150901084153 17.470 ± 0.042 3,0 100 2
i 20150901084554 17.517 ± 0.046 3,0 100 2
i 20160420170134 17.604 ± 0.110 0,0 10 2
i 20190505170526 17.532 ± 0.051 3,0 100 2
i 20190508164002 17.453 ± 0.052 0,0 100 2
i 20190509140533 17.395 ± 0.065 0,0 100 2
i 20190720124743 17.431 ± 0.078 0,0 100 2
i 20200513190610 17.449 ± 0.050 0,0 100 2
i 20210407183626 17.516 ± 0.108 0,0 10 2
z 20140719115035 17.270 ± 0.105 0,0 20 2
z 20140722114259 17.274 ± 0.086 0,0 20 2
z 20140729111235 17.301 ± 0.090 0,0 20 2
z 20150901084353 17.247 ± 0.051 2,0 100 2
z 20150901084754 17.268 ± 0.056 3,0 100 2
z 20160420170204 17.425 ± 0.130 0,0 20 2
z 20190505170726 17.268 ± 0.062 3,0 100 2
z 20190508164202 17.165 ± 0.056 0,0 100 2
z 20190509140733 17.162 ± 0.071 0,0 100 2
z 20190720124943 17.180 ± 0.077 0,0 100 2
z 20200513190811 17.329 ± 0.077 0,0 100 2
z 20210407183658 17.203 ± 0.116 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.79 3.2
GAIA source ID 4121259267863817472 4121259267865577856
Bp mag. 18.569 19.273
G mag. 17.916 18.662
Rp mag. 17.155 17.768
Bp/Rp excess 1.246 1.373
Parallax (mas) 0.262 ± 0.130 0.302 ± 0.224
PM RA (mas/yr) -1.888 ± 0.143 -4.243 ± 0.242
PM Dec (mas/yr) -8.820 ± 0.108 -1.918 ± 0.175
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.123 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 16.045 ± 0.011
H -- ± --
K 15.562 ± 0.027
W1 15.446 ± 0.021
W2 15.63 ± 0.054
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.