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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179909138 (SMSS J172800.86-202616.1)

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Data releaseDR4
RA (deg)262.004
Dec (deg)-20.438
Galactic lon. (deg)5.070
Galactic lat. (deg)7.914
E(B-V) (SFD98) (mag)0.814
E(B-V) (GNILC) (mag)0.634 ± 0.030
Nearest DR4 source 179909139 (4.0 arcs away)
2nd-nearest DR4 source 179909140 (11.6 arcs away)
3rd-nearest DR4 source 179909137 (12.7 arcs away)
Times observed1
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — — — 18.711 ± 0.088 —
Petrosian mag. — — — — 18.632 ± 0.145 —

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 20150901084554 18.644 ± 0.097 3,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.61 1.42
GAIA source ID 4121062459624130048 4121062459649163904
Bp mag. 19.986 --
G mag. 19.366 20.664
Rp mag. 18.497 --
Bp/Rp excess 1.347 --
Parallax (mas) 0.076 ± 0.495 -- ± --
PM RA (mas/yr) -0.696 ± 0.599 -- ± --
PM Dec (mas/yr) -7.805 ± 0.385 -- ± --
A.E.N. (mas) 1.047 ± 2.072 0.0 ± 0.000

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 19.305 ± 0.012
i -- ± --
z -- ± --
Y -- ± --
J 17.380 ± 0.038
H -- ± --
K 16.689 ± 0.079
W1 17.014 ± 0.084
W2 17.254 ± 0.281
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.