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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179909165 (SMSS J172800.02-202556.1)

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Data releaseDR4
RA (deg)262.000
Dec (deg)-20.432
Galactic lon. (deg)5.073
Galactic lat. (deg)7.919
E(B-V) (SFD98) (mag)0.808
E(B-V) (GNILC) (mag)0.639 ± 0.030
Nearest DR4 source 179909166 (6.3 arcs away)
2nd-nearest DR4 source 179909136 (9.4 arcs away)
3rd-nearest DR4 source 179909137 (10.3 arcs away)
Times observed25
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 18.957 ± 0.020 17.972 ± 0.019 17.187 ± 0.012 16.776 ± 0.016
Petrosian mag. — — 19.084 ± 0.045 18.119 ± 0.050 17.284 ± 0.025 16.857 ± 0.038

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 18.919 ± 0.049 0,0 100 2
g 20190507143127 18.952 ± 0.059 0,0 100 2
g 20190822094124 18.960 ± 0.052 0,0 100 2
r 20140729111131 18.095 ± 0.111 0,0 5 2
r 20190505165926 17.942 ± 0.048 0,0 100 2
r 20190507143327 17.927 ± 0.052 0,0 100 2
r 20190822094324 17.962 ± 0.048 0,0 100 2
i 20140719115004 17.173 ± 0.076 0,0 10 2
i 20140729111202 17.185 ± 0.067 0,0 10 2
i 20150901084554 17.174 ± 0.040 0,0 100 2
i 20160420172350 17.192 ± 0.093 0,0 10 2
i 20190505170526 17.167 ± 0.045 0,0 100 2
i 20190508164002 17.275 ± 0.049 0,0 100 2
i 20190509140533 17.173 ± 0.056 0,0 100 2
i 20190720124743 17.142 ± 0.075 0,0 100 2
i 20200513190610 17.249 ± 0.046 0,0 100 2
i 20210407183626 17.387 ± 0.097 512,0 10 2
z 20140719115035 16.813 ± 0.077 0,0 20 2
z 20140729111235 16.845 ± 0.065 0,0 20 2
z 20150901084754 16.749 ± 0.043 0,0 100 2
z 20160420172420 16.867 ± 0.083 0,0 20 2
z 20190505170726 16.804 ± 0.049 0,0 100 2
z 20190508164202 16.771 ± 0.045 0,0 100 2
z 20190509140733 16.737 ± 0.061 0,0 100 2
z 20190720124943 16.757 ± 0.071 0,0 100 2
z 20200513190811 16.854 ± 0.057 1024,0 100 2
z 20210407183658 16.844 ± 0.087 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.24 1.78
GAIA source ID 4121062455285010688 4121062459624235520
Bp mag. 18.724 --
G mag. 17.805 20.656
Rp mag. 16.823 --
Bp/Rp excess 1.351 --
Parallax (mas) -0.057 ± 0.155 -- ± --
PM RA (mas/yr) -0.806 ± 0.197 -- ± --
PM Dec (mas/yr) -7.655 ± 0.131 -- ± --
A.E.N. (mas) 0.0 ± 0.0 3.577 ± 1.268

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.029 ± 0.005
i -- ± --
z -- ± --
Y -- ± --
J 15.340 ± 0.007
H -- ± --
K 14.481 ± 0.010
W1 14.646 ± 0.017
W2 14.755 ± 0.03
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.