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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821255 (SMSS J172719.71-204958.6)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.8322
Dec (deg)-20.8330
Galactic lon. (deg)4.6470
Galactic lat. (deg)7.8334
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.903 ± 0.044
Nearest DR4 source 179821254 (6.4 arcs away)
2nd-nearest DR4 source 179821256 (7.1 arcs away)
3rd-nearest DR4 source 179821069 (7.4 arcs away)
Times observed4
Total bad pixels0
Observing flags1

Magnitudes

Filter u v g r i z
PSF mag. — — — — 18.847 ± 0.028 18.385 ± 0.038
Petrosian mag. — — — — 19.186 ± 0.152 18.747 ± 0.167

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)
i 20150901084153 18.933 ± 0.121 0,0 100 2
i 20150901084554 19.018 ± 0.117 0,0 100 2
z 20150901084353 18.576 ± 0.15 0,0 100 2
z 20150901084754 18.439 ± 0.131 1,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.15 1.38
GAIA source ID 4121011332320126720 4121011332320126592
Bp mag. 20.341 --
G mag. 19.366 20.794
Rp mag. 18.410 --
Bp/Rp excess 1.310 --
Parallax (mas) -0.022 ± 0.302 -- ± --
PM RA (mas/yr) -5.536 ± 0.367 -- ± --
PM Dec (mas/yr) -4.752 ± 0.257 -- ± --
A.E.N. (mas) 0.0 ± 0.000 1.199 ± 0.174

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 20.530 ± 0.014
r 19.350 ± 0.005
i 18.766 ± 0.012
z 18.414 ± 0.012
Y -- ± --
J 16.952 ± 0.027
H -- ± --
K 16.288 ± 0.050
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.