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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900785 (SMSS J172819.23-203459.9)

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Data releaseDR4
RA (deg)262.0802
Dec (deg)-20.5833
Galactic lon. (deg)4.9858
Galactic lat. (deg)7.7745
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 2268139655 (3.5 arcs away)
2nd-nearest DR4 source 2268139630 (4.9 arcs away)
3rd-nearest DR4 source 179900804 (7.2 arcs away)
Times observed37
Total bad pixels10
Observing flags2

Magnitudes

Filter u v g r i z
PSF mag. — — 17.778 ± 0.027 16.320 ± 0.015 13.883 ± 0.009 12.740 ± 0.010
Petrosian mag. — — 17.537 ± 0.037 16.114 ± 0.054 13.871 ± 0.009 12.748 ± 0.010

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 20140719114908 18.005 ± 0.095 0,0 5 2
g 20140722114132 18.082 ± 0.093 0,0 5 2
g 20160420172300 17.851 ± 0.104 0,0 5 2
g 20190505165725 17.828 ± 0.029 2,0 100 2
g 20190506165109 17.814 ± 0.024 2,0 100 2
g 20190507143127 17.828 ± 0.046 2,0 100 2
g 20190822094124 17.809 ± 0.029 2,0 100 2
r 20140719114939 16.370 ± 0.041 0,0 5 2
r 20140722114203 16.389 ± 0.037 0,0 5 2
r 20160420172325 16.269 ± 0.034 0,0 5 2
r 20180605125736 16.295 ± 0.042 0,3 5 2
r 20190505165926 16.295 ± 0.029 2,0 100 2
r 20190506165309 16.310 ± 0.028 2,0 100 2
r 20190507143327 16.382 ± 0.045 2,4 100 2
r 20190822094324 16.376 ± 0.029 2,0 100 2
r 20200524153415 16.331 ± 0.049 0,0 5 2
i 20140719115004 13.901 ± 0.024 0,0 10 2
i 20140722114229 13.896 ± 0.030 0,0 10 2
i 20150901084153 13.878 ± 0.028 2,0 100 2
i 20160420172350 13.840 ± 0.022 0,3 10 2
i 20180605125802 13.865 ± 0.031 0,0 10 2
i 20190505170526 13.878 ± 0.030 2,0 100 2
i 20190508164002 13.892 ± 0.034 0,0 100 2
i 20190509140533 13.904 ± 0.050 2,0 100 2
i 20190720124743 13.835 ± 0.060 2,0 100 2
i 20200513190610 13.917 ± 0.030 0,0 100 2
i 20200524153441 13.869 ± 0.030 0,0 10 2
z 20140719115035 12.753 ± 0.027 0,0 20 2
z 20140722114259 12.742 ± 0.026 0,0 20 2
z 20150901084353 12.732 ± 0.025 2,0 100 2
z 20160420172420 12.736 ± 0.021 0,0 20 2
z 20180605125833 12.738 ± 0.027 0,0 20 2
z 20190505170726 12.738 ± 0.028 2,0 100 2
z 20190508164202 12.736 ± 0.026 0,0 100 2
z 20190509140733 12.752 ± 0.052 2,0 100 2
z 20190720124943 12.697 ± 0.057 2,0 100 2
z 20200513190811 12.750 ± 0.033 0,0 100 2
z 20200524153511 12.738 ± 0.029 0,0 20 3

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 2.94
GAIA source ID 4121034078500028928 4121034078502214144
Bp mag. 17.378 --
G mag. 14.774 20.985
Rp mag. 13.342 --
Bp/Rp excess 1.641 --
Parallax (mas) 0.067 ± 0.058 -- ± --
PM RA (mas/yr) -4.486 ± 0.061 -- ± --
PM Dec (mas/yr) -5.668 ± 0.048 -- ± --
A.E.N. (mas) 0.302 ± 24.764 3.334 ± 0.658

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.112 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 10.716 ± 0.019
H 9.657 ± 0.02
K 9.249 ± 0.021
W1 9.017 ± 0.013
W2 9.247 ± 0.009
W3 8.97 ± 0.032
W4 8.79 ± 0.433
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.