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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900808 (SMSS J172820.66-203452.5)

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Data releaseDR4
RA (deg)262.0860
Dec (deg)-20.5813
Galactic lon. (deg)4.9906
Galactic lat. (deg)7.7710
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900807 (6.4 arcs away)
2nd-nearest DR4 source 179900805 (7.6 arcs away)
3rd-nearest DR4 source 179900788 (9.9 arcs away)
Times observed3
Total bad pixels0
Observing flags19

Magnitudes

Filter u v g r i z
PSF mag. 18.255 ± -- 17.944 ± -- 17.513 ± 0.103
Petrosian mag. 18.394 ± -- 18.16 ± -- 17.465 ± 0.199

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)
r 20140729111131 18.420 ± 0.151 16,0 5 2
i 20140729111202 17.859 ± 0.117 16,0 10 2
z 20140722114259 17.507 ± 0.108 0,0 20 2
z 20140729111235 17.383 ± 0.099 16,0 20 2
z 20160420172420 17.635 ± 0.144 0,0 20 2
z 20190508164202 17.386 ± 0.068 3,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.83 0.96
GAIA source ID 4121034078462747776 4121034074153225472
Bp mag. 19.615 19.855
G mag. 19.381 19.114
Rp mag. 17.990 18.077
Bp/Rp excess 2.101 1.461
Parallax (mas) -1.763 ± 0.804 0.492 ± 0.391
PM RA (mas/yr) 1.483 ± 0.846 3.321 ± 0.416
PM Dec (mas/yr) -9.317 ± 0.632 -0.115 ± 0.325
A.E.N. (mas) 3.090 ± 15.372 0.439 ± 0.484

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 19.202 ± 0.005
i -- ± --
z -- ± --
Y -- ± --
J 16.66 ± 0.020
H -- ± --
K 15.978 ± 0.037
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.