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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821043 (SMSS J172718.40-205028.4)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.8267
Dec (deg)-20.8413
Galactic lon. (deg)4.6372
Galactic lat. (deg)7.8332
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.971 ± 0.050
Nearest DR4 source 179821045 (9.1 arcs away)
2nd-nearest DR4 source 179821044 (11.2 arcs away)
3rd-nearest DR4 source 179821040 (11.8 arcs away)
Times observed25
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 19.071 ± 0.022 18.106 ± 0.023 17.292 ± 0.013 16.869 ± 0.021
Petrosian mag. — — 19.156 ± 0.055 18.039 ± 0.036 17.298 ± 0.040 16.947 ± 0.038

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 19.091 ± 0.043 0,0 100 2
g 20190507143127 19.042 ± 0.040 0,0 100 2
r 20140722114203 18.155 ± 0.117 0,0 5 2
r 20140729111131 17.862 ± 0.086 0,0 5 2
r 20160420170109 18.065 ± 0.147 0,0 5 2
r 20190506165309 18.130 ± 0.038 0,0 100 2
r 20190507143327 18.116 ± 0.041 0,0 100 2
i 20140719115004 17.417 ± 0.082 0,0 10 2
i 20140722114229 17.320 ± 0.072 0,0 10 2
i 20140729111202 17.279 ± 0.068 0,0 10 2
i 20150901084153 17.281 ± 0.039 0,0 100 2
i 20150901084554 17.280 ± 0.036 0,0 100 2
i 20160420170134 17.347 ± 0.088 0,0 10 2
i 20190419150817 17.337 ± 0.049 16,0 100 2
i 20190505170526 17.305 ± 0.038 16,0 100 2
i 20190508164002 17.319 ± 0.039 0,0 100 2
i 20210407183626 17.378 ± 0.094 0,0 10 2
z 20140719115035 16.994 ± 0.084 0,0 20 2
z 20140722114259 16.888 ± 0.064 0,0 20 2
z 20140729111235 16.821 ± 0.061 0,0 20 2
z 20150901084353 16.817 ± 0.043 0,0 100 2
z 20150901084754 16.875 ± 0.041 0,0 100 2
z 20160420170204 16.994 ± 0.082 0,0 20 2
z 20180605124707 17.010 ± 0.090 0,0 20 2
z 20190419151018 16.867 ± 0.049 16,0 100 2
z 20190505170726 17.443 ± 0.062 16,0 100 2
z 20190508164202 16.861 ± 0.042 0,0 100 2
z 20200513183957 16.929 ± 0.054 0,0 100 2
z 20210407183658 16.705 ± 0.073 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.15 2.93
GAIA source ID 4121011327988674304 4121011263634492288
Bp mag. 18.931 20.836
G mag. 17.990 20.246
Rp mag. 16.920 18.859
Bp/Rp excess 1.433 1.931
Parallax (mas) -0.204 ± 0.133 1.323 ± 0.678
PM RA (mas/yr) 3.505 ± 0.162 -2.612 ± 0.739
PM Dec (mas/yr) -1.365 ± 0.113 -8.618 ± 0.543
A.E.N. (mas) 0.417 ± 2.390 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.391 ± 0.007
r 18.135 ± 0.002
i 17.432 ± 0.005
z 17.048 ± 0.004
Y -- ± --
J 15.427 ± 0.007
H -- ± --
K 14.669 ± 0.012
W1 14.642 ± 0.015
W2 14.562 ± 0.026
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.