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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179804893 (SMSS J172553.81-205404.6)

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Data releaseDR4
RA (deg)261.474
Dec (deg)-20.901
Galactic lon. (deg)4.405
Galactic lat. (deg)8.076
E(B-V) (SFD98) (mag)0.869
E(B-V) (GNILC) (mag)0.875 ± 0.050
Nearest DR4 source 179804892 (5.9 arcs away)
2nd-nearest DR4 source 179804938 (13.6 arcs away)
Times observed2
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — — — 18.667 ± 0.086 —
Petrosian mag. — — — — 19.114 ± 0.162 —

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 18.554 ± 0.087 3,0 100 2
i 20150901084554 18.632 ± 0.083 3,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.68 0.71
GAIA source ID 4120931269810343680 4120931652089143808
Bp mag. -- 20.453
G mag. 20.698 20.074
Rp mag. -- 18.644
Bp/Rp excess -- 2.083
Parallax (mas) -- ± -- 0.620 ± 0.512
PM RA (mas/yr) -- ± -- -2.775 ± 0.693
PM Dec (mas/yr) -- ± -- -2.740 ± 0.445
A.E.N. (mas) 0.000 ± 0.000 0.915 ± 0.720

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 20.600 ± 0.017
r 19.066 ± 0.006
i 18.453 ± 0.012
z 18.006 ± 0.012
Y -- ± --
J 17.083 ± 0.030
H -- ± --
K 16.360 ± 0.054
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.