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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179819794 (SMSS J172714.52-205101.5)

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Data releaseDR4
RA (deg)261.8105
Dec (deg)-20.8505
Galactic lon. (deg)4.6210
Galactic lat. (deg)7.8408
E(B-V) (SFD98) (mag)0.940
E(B-V) (GNILC) (mag)0.929 ± 0.041
Nearest DR4 source 179819795 (4.9 arcs away)
2nd-nearest DR4 source 179819790 (5.4 arcs away)
3rd-nearest DR4 source 179819791 (8.1 arcs away)
Times observed30
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.461 ± 0.031 18.345 ± 0.023 17.368 ± 0.016 16.803 ± 0.016
Petrosian mag. — — 19.656 ± 0.097 18.362 ± 0.075 17.447 ± 0.052 16.986 ± 0.036

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 19.562 ± 0.059 0,0 100 2
g 20190506165109 19.438 ± 0.055 0,0 100 2
g 20190507143127 19.480 ± 0.054 0,0 100 2
g 20190822094124 19.417 ± 0.053 16,0 100 2
r 20140722114203 18.560 ± 0.166 512,0 5 2
r 20140729111131 18.459 ± 0.143 0,0 5 2
r 20190505165926 18.359 ± 0.044 0,0 100 2
r 20190506165309 18.323 ± 0.043 0,0 100 2
r 20190507143327 18.383 ± 0.046 3,0 100 2
r 20190822094324 18.372 ± 0.043 17,0 100 2
i 20140719115004 17.549 ± 0.092 0,0 10 2
i 20140722114229 17.441 ± 0.079 0,0 10 2
i 20140729111202 17.325 ± 0.070 0,0 10 2
i 20150901084153 17.347 ± 0.040 2,0 100 2
i 20150901084554 17.313 ± 0.037 1,0 100 2
i 20160420170134 17.405 ± 0.092 0,0 10 2
i 20180605124636 17.445 ± 0.104 0,0 10 2
i 20190419150817 17.404 ± 0.051 0,0 100 2
i 20190505170526 17.374 ± 0.039 2,0 100 2
i 20190508164002 17.413 ± 0.041 1,0 100 2
i 20190720124743 17.347 ± 0.063 3,0 100 2
z 20140719115035 16.895 ± 0.078 0,0 20 2
z 20140722114259 16.802 ± 0.061 0,0 20 2
z 20140729111235 16.748 ± 0.059 0,0 20 2
z 20150901084353 16.776 ± 0.042 0,0 100 2
z 20150901084754 16.815 ± 0.040 0,0 100 2
z 20160420170204 16.911 ± 0.077 0,0 20 2
z 20180605124707 16.930 ± 0.085 0,0 20 2
z 20190419151018 16.862 ± 0.049 0,0 100 2
z 20190505170726 16.824 ± 0.042 0,0 100 2
z 20190508164202 16.831 ± 0.041 0,0 100 2
z 20190720124943 16.821 ± 0.063 0,0 100 2
z 20200513183957 16.997 ± 0.056 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.17 1.41
GAIA source ID 4121011190549712128 4121011194881151360
Bp mag. 19.158 --
G mag. 18.026 20.103
Rp mag. 16.916 --
Bp/Rp excess 1.425 --
Parallax (mas) 0.167 ± 0.134 0.372 ± 0.764
PM RA (mas/yr) -0.983 ± 0.168 1.926 ± 0.882
PM Dec (mas/yr) -3.873 ± 0.116 -1.294 ± 0.595
A.E.N. (mas) 0.360 ± 1.542 1.221 ± 0.769

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.655 ± 0.009
r 18.207 ± 0.002
i 17.454 ± 0.009
z 16.979 ± 0.006
Y -- ± --
J 15.189 ± 0.006
H 14.406 ± 0.05
K 14.197 ± 0.008
W1 13.938 ± 0.014
W2 14.156 ± 0.022
W3 12.283 ± --
W4 8.108 ± --
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.