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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179909147 (SMSS J172802.30-202628.4)

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Data releaseDR4
RA (deg)262.009
Dec (deg)-20.441
Galactic lon. (deg)5.070
Galactic lat. (deg)7.907
E(B-V) (SFD98) (mag)0.814
E(B-V) (GNILC) (mag)0.615 ± 0.023
Nearest DR4 source 179909132 (4.3 arcs away)
2nd-nearest DR4 source 179909129 (8.9 arcs away)
3rd-nearest DR4 source 179909144 (10.1 arcs away)
Times observed30
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.16 ± 0.076 17.595 ± 0.065 17.018 ± 0.027 16.690 ± 0.033
Petrosian mag. — — 17.743 ± 0.022 17.013 ± 0.070 16.633 ± 0.069 16.428 ± 0.088

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 20140729111106 18.309 ± 0.103 0,0 5 2
g 20190505165725 18.284 ± 0.038 3,0 100 2
g 20190507143127 18.260 ± 0.049 3,0 100 2
g 20190822094124 18.228 ± 0.042 3,0 100 2
r 20140729111131 17.449 ± 0.067 0,0 5 2
r 20160420172325 17.621 ± 0.106 0,0 5 2
r 20190505165926 17.619 ± 0.044 3,0 100 2
r 20190507143327 17.588 ± 0.049 3,0 100 2
r 20190822094324 17.560 ± 0.045 3,0 100 2
i 20140719115004 16.992 ± 0.067 0,0 10 2
i 20140729111202 16.880 ± 0.055 0,0 10 2
i 20150901084554 16.923 ± 0.037 3,0 100 2
i 20160420172350 16.973 ± 0.078 0,0 10 2
i 20190505170526 16.906 ± 0.042 3,0 100 2
i 20190508164002 17.073 ± 0.045 3,0 100 2
i 20190509140533 17.011 ± 0.054 3,0 100 2
i 20190720124743 17.065 ± 0.074 3,0 100 2
i 20200513190610 17.080 ± 0.043 3,0 100 2
i 20200524153441 17.058 ± 0.076 0,0 10 2
i 20210407183626 16.981 ± 0.072 0,0 10 2
z 20140719115035 16.696 ± 0.071 0,0 20 2
z 20140729111235 16.591 ± 0.055 0,0 20 2
z 20150901084754 16.609 ± 0.041 3,0 100 2
z 20160420172420 16.666 ± 0.071 0,0 20 2
z 20190505170726 16.627 ± 0.045 3,0 100 2
z 20190508164202 16.660 ± 0.042 3,0 100 2
z 20190509140733 16.765 ± 0.061 1,0 100 2
z 20190720124943 16.774 ± 0.071 1,0 100 2
z 20200513190811 16.770 ± 0.054 1,0 100 2
z 20210407183658 16.705 ± 0.078 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.38 1.62
GAIA source ID 4121062390904540288 4121062390916505600
Bp mag. 18.374 --
G mag. 17.826 20.350
Rp mag. 16.935 --
Bp/Rp excess 1.393 --
Parallax (mas) 0.036 ± 0.154 -0.592 ± 1.462
PM RA (mas/yr) -1.455 ± 0.179 -1.985 ± 1.711
PM Dec (mas/yr) -4.953 ± 0.123 -6.480 ± 1.238
A.E.N. (mas) 0.0 ± 0.0 3.121 ± 3.435

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.901 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 15.946 ± 0.011
H -- ± --
K 15.479 ± 0.026
W1 14.703 ± 0.022
W2 14.851 ± 0.052
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.