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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900628 (SMSS J172818.20-203604.3)

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Data releaseDR4
RA (deg)262.0759
Dec (deg)-20.6012
Galactic lon. (deg)4.9684
Galactic lat. (deg)7.7682
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900669 (11.1 arcs away)
2nd-nearest DR4 source 179900634 (11.7 arcs away)
3rd-nearest DR4 source 179900626 (13.1 arcs away)
Times observed45
Total bad pixels6
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.010 ± 0.009 15.766 ± 0.009 14.681 ± 0.008 14.095 ± 0.009
Petrosian mag. — — 16.983 ± 0.019 15.707 ± 0.032 14.695 ± 0.010 14.120 ± 0.011

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 17.020 ± 0.047 0,0 5 2
g 20140722114132 17.002 ± 0.043 0,0 5 2
g 20160420172300 17.021 ± 0.053 0,3 5 2
g 20180605125705 17.104 ± 0.065 0,0 5 2
g 20190505165725 17.001 ± 0.027 3,0 100 2
g 20190506165109 17.013 ± 0.022 3,0 100 2
g 20190507143127 17.008 ± 0.044 3,2 100 2
g 20190822094124 17.023 ± 0.027 3,0 100 2
g 20200524153348 17.142 ± 0.075 1,0 5 3
g 20210407183532 17.007 ± 0.052 0,0 5 2
g 20210411182948 17.137 ± 0.064 1,0 5 3
r 20140719114939 15.773 ± 0.033 0,0 5 2
r 20140722114203 15.821 ± 0.029 0,0 5 2
r 20160420172325 15.787 ± 0.026 0,0 5 2
r 20180605125736 15.764 ± 0.031 0,0 5 2
r 20190505165926 15.756 ± 0.029 3,0 100 2
r 20190506165309 15.761 ± 0.028 3,0 100 2
r 20190507143327 15.722 ± 0.045 3,1 100 2
r 20190822094324 15.762 ± 0.029 3,0 100 2
r 20200524153415 15.750 ± 0.041 1,0 5 2
r 20210407183558 15.761 ± 0.034 0,0 5 2
r 20210411183015 15.762 ± 0.031 1,0 5 2
i 20140719115004 14.679 ± 0.026 1,0 10 2
i 20140722114229 14.667 ± 0.031 0,0 10 2
i 20150901084153 14.687 ± 0.028 3,0 100 2
i 20160420172350 14.677 ± 0.023 0,0 10 2
i 20180605125802 14.687 ± 0.032 3,0 10 2
i 20190505170526 14.678 ± 0.030 3,0 100 2
i 20190508164002 14.672 ± 0.034 3,0 100 2
i 20190509140533 14.687 ± 0.050 3,0 100 2
i 20190720124743 14.664 ± 0.060 3,0 100 2
i 20200513190610 14.689 ± 0.031 3,0 100 2
i 20200524153441 14.695 ± 0.032 3,0 10 2
i 20210407183626 14.673 ± 0.030 0,0 10 2
i 20210411183047 14.679 ± 0.036 3,0 10 2
z 20140719115035 14.092 ± 0.028 3,0 20 2
z 20140722114259 14.099 ± 0.027 0,0 20 2
z 20150901084353 14.093 ± 0.025 3,0 100 2
z 20160420172420 14.105 ± 0.022 0,0 20 2
z 20180605125833 14.110 ± 0.029 1,0 20 2
z 20190505170726 14.083 ± 0.028 3,0 100 2
z 20190508164202 14.078 ± 0.027 3,0 100 2
z 20190509140733 14.088 ± 0.052 3,0 100 2
z 20190720124943 14.078 ± 0.057 3,0 100 2
z 20200513190811 14.082 ± 0.034 3,0 100 2
z 20200524153511 14.092 ± 0.031 3,0 20 3
z 20210407183658 14.108 ± 0.027 0,0 20 2
z 20210411183118 14.113 ± 0.028 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.08 1.89
GAIA source ID 4121022293109738624 4121022293109737472
Bp mag. 16.761 --
G mag. 15.461 19.597
Rp mag. 14.328 --
Bp/Rp excess 1.415 --
Parallax (mas) 0.175 ± 0.044 0.656 ± 0.774
PM RA (mas/yr) -3.364 ± 0.044 -2.240 ± 1.037
PM Dec (mas/yr) -3.426 ± 0.034 -1.005 ± 0.524
A.E.N. (mas) 0.0 ± 0.0 0.675 ± 0.469

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 15.787 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 12.485 ± 0.019
H 11.618 ± 0.022
K 11.308 ± 0.017
W1 11.161 ± 0.013
W2 11.343 ± 0.009
W3 11.214 ± 0.191
W4 8.292 ± --
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.