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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900621 (SMSS J172816.41-203610.4)

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Data releaseDR4
RA (deg)262.0684
Dec (deg)-20.6029
Galactic lon. (deg)4.9632
Galactic lat. (deg)7.7731
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900622 (6.6 arcs away)
2nd-nearest DR4 source 179900620 (7.7 arcs away)
3rd-nearest DR4 source 179900619 (7.9 arcs away)
Times observed45
Total bad pixels5
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.157 ± 0.011 16.406 ± 0.011 15.808 ± 0.009 15.502 ± 0.011
Petrosian mag. — — 17.082 ± 0.019 16.229 ± 0.067 15.743 ± 0.019 15.465 ± 0.019

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 17.172 ± 0.051 0,0 5 2
g 20140722114132 17.158 ± 0.047 0,0 5 2
g 20160420172300 17.148 ± 0.059 0,1 5 2
g 20180605125705 17.171 ± 0.069 0,0 5 2
g 20190505165725 17.161 ± 0.027 0,0 100 2
g 20190506165109 17.153 ± 0.022 1,0 100 2
g 20190507143127 17.159 ± 0.044 0,0 100 2
g 20190822094124 17.165 ± 0.027 3,0 100 2
g 20200524153348 17.142 ± 0.074 0,0 5 3
g 20210407183532 17.208 ± 0.059 0,0 5 2
g 20210411182948 17.104 ± 0.061 0,0 5 3
r 20140719114939 16.487 ± 0.043 0,0 5 2
r 20140722114203 16.365 ± 0.036 0,0 5 2
r 20160420172325 16.361 ± 0.036 0,2 5 2
r 20180605125736 16.442 ± 0.046 0,0 5 2
r 20190505165926 16.413 ± 0.030 1,0 100 2
r 20190506165309 16.407 ± 0.029 3,0 100 2
r 20190507143327 16.404 ± 0.045 0,0 100 2
r 20190822094324 16.406 ± 0.029 3,0 100 2
r 20200524153415 16.393 ± 0.050 0,0 5 2
r 20210407183558 16.414 ± 0.044 0,0 5 2
r 20210411183015 16.413 ± 0.045 0,0 5 2
i 20140719115004 15.781 ± 0.032 0,0 10 2
i 20140722114229 15.815 ± 0.036 0,0 10 2
i 20150901084153 15.816 ± 0.029 0,0 100 2
i 20160420172350 15.792 ± 0.032 0,2 10 2
i 20180605125802 15.843 ± 0.042 0,0 10 2
i 20190505170526 15.800 ± 0.031 3,0 100 2
i 20190508164002 15.810 ± 0.036 0,0 100 2
i 20190509140533 15.804 ± 0.050 1,0 100 2
i 20190720124743 15.829 ± 0.061 1,0 100 2
i 20200513190610 15.809 ± 0.032 0,0 100 2
i 20200524153441 15.827 ± 0.040 0,0 10 2
i 20210407183626 15.806 ± 0.037 0,0 10 2
i 20210411183047 15.865 ± 0.045 0,0 10 2
z 20140719115035 15.525 ± 0.036 0,0 20 2
z 20140722114259 15.491 ± 0.032 0,0 20 2
z 20150901084353 15.507 ± 0.027 0,0 100 2
z 20160420172420 15.509 ± 0.031 0,0 20 2
z 20180605125833 15.491 ± 0.040 0,0 20 2
z 20190505170726 15.468 ± 0.03 0,0 100 2
z 20190508164202 15.482 ± 0.029 0,0 100 2
z 20190509140733 15.500 ± 0.053 0,0 100 2
z 20190720124943 15.487 ± 0.058 0,0 100 2
z 20200513190811 15.518 ± 0.036 0,0 100 2
z 20200524153511 15.529 ± 0.042 0,0 20 3
z 20210407183658 15.478 ± 0.036 0,0 20 2
z 20210411183118 15.557 ± 0.039 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.04 1.5
GAIA source ID 4121022288746558848 4121022293072417664
Bp mag. 17.083 --
G mag. 16.368 19.814
Rp mag. 15.496 --
Bp/Rp excess 1.316 --
Parallax (mas) 1.005 ± 0.066 0.466 ± 0.666
PM RA (mas/yr) -5.388 ± 0.073 -4.246 ± 0.639
PM Dec (mas/yr) -12.363 ± 0.056 -1.967 ± 0.461
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.000

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.474 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 14.368 ± 0.024
H 13.797 ± 0.037
K 13.733 ± 0.043
W1 13.444 ± 0.012
W2 13.664 ± 0.014
W3 12.32 ± --
W4 8.7 ± --
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.