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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900789 (SMSS J172821.38-203501.7)

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Data releaseDR4
RA (deg)262.0891
Dec (deg)-20.5838
Galactic lon. (deg)4.9900
Galactic lat. (deg)7.7672
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900807 (7.4 arcs away)
2nd-nearest DR4 source 179900822 (7.8 arcs away)
3rd-nearest DR4 source 179900809 (9.8 arcs away)
Times observed9
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.331 ± 0.135 18.284 ± 0.221 17.543 ± 0.192 17.506 ± 0.109
Petrosian mag. 19.091 ± 0.086 17.970 ± 0.059 17.406 ± 0.110 17.291 ± 0.121

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 19.454 ± 0.058 3,0 100 2
g 20190506165109 19.376 ± 0.052 3,0 100 2
r 20190505165926 18.426 ± 0.048 3,0 100 2
i 20140722114229 18.385 ± 0.185 512,0 10 2
i 20150901084153 17.733 ± 0.049 3,0 100 2
i 20190505170526 17.677 ± 0.047 3,0 100 2
z 20140722114259 17.541 ± 0.112 0,0 20 2
z 20150901084353 17.353 ± 0.056 3,0 100 2
z 20160420172420 17.736 ± 0.157 0,0 20 2
z 20190505170726 17.428 ± 0.062 3,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.42 1.67
GAIA source ID 4121022327432177024 4121022323107560064
Bp mag. -- 19.497
G mag. 19.987 18.745
Rp mag. -- 17.697
Bp/Rp excess -- 1.468
Parallax (mas) 2.063 ± 0.836 -0.191 ± 0.270
PM RA (mas/yr) -7.355 ± 0.734 -2.639 ± 0.276
PM Dec (mas/yr) -5.252 ± 0.616 -4.980 ± 0.216
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.665 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 17.955 ± 0.065
H -- ± --
K -- ± --
W1 15.117 ± 0.023
W2 15.384 ± 0.053
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.