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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185218748 (SMSS J172901.50-201103.7)

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Data releaseDR4
RA (deg)262.2563
Dec (deg)-20.1844
Galactic lon. (deg)5.4145
Galactic lat. (deg)7.8520
E(B-V) (SFD98) (mag)0.896
E(B-V) (GNILC) (mag)0.727 ± 0.035
Nearest DR4 source 2275926881 (7.7 arcs away)
2nd-nearest DR4 source 185218754 (8.0 arcs away)
3rd-nearest DR4 source 185218746 (10.8 arcs away)
Times observed38
Total bad pixels15
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 17.975 ± 0.069 18.529 ± 0.048 14.847 ± 0.010 13.637 ± 0.010 12.613 ± 0.011 12.041 ± 0.010
Petrosian mag. 18.074 ± 0.089 18.454 ± 0.075 14.815 ± 0.009 13.619 ± 0.010 12.606 ± 0.01 12.032 ± 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)
u 20140729110926 -- ± -- 512,0 40 3
u 20190505165326 17.957 ± 0.059 0,0 100 2
u 20190505170125 18.181 ± 0.074 0,0 100 2
v 20190505165526 18.534 ± 0.068 0,0 100 1
v 20190505170325 18.567 ± 0.068 0,0 100 1
g 20140719114908 16.209 ± 0.034 16,0 5 2
g 20140722114132 14.818 ± 0.030 0,0 5 2
g 20140729111106 14.844 ± 0.017 0,0 5 2
g 20160420172300 14.847 ± 0.013 0,0 5 2
g 20180605125705 14.849 ± 0.029 0,0 5 2
g 20190505165725 14.874 ± 0.022 0,72 100 2
g 20190506165109 14.868 ± 0.027 0,0 100 2
g 20190507143127 14.846 ± 0.043 0,0 100 2
g 20190822094124 14.854 ± 0.036 0,0 100 2
g 20210411182948 14.871 ± 0.030 0,0 5 3
r 20140719114939 15.316 ± 0.033 16,0 5 2
r 20140722114203 13.634 ± 0.030 0,0 5 2
r 20140729111131 13.638 ± 0.023 0,0 5 2
r 20160420172325 13.608 ± 0.015 0,0 5 2
r 20180605125736 13.638 ± 0.023 0,0 5 2
r 20190505165926 13.644 ± 0.032 0,73 100 2
r 20190506165309 13.645 ± 0.030 0,0 100 2
r 20190507143327 13.631 ± 0.044 0,0 100 2
r 20190822094324 13.649 ± 0.038 0,0 100 2
r 20210411183015 13.632 ± 0.020 0,0 5 2
i 20140719115004 13.341 ± 0.030 16,0 10 2
i 20140722114229 12.599 ± 0.033 2,0 10 2
i 20140729111202 12.610 ± 0.029 2,0 10 2
i 20150901084153 12.623 ± 0.031 3,5 100 2
i 20150901084554 12.632 ± 0.030 0,4 100 2
i 20160420172350 12.586 ± 0.021 0,4 10 2
i 20180605125802 12.615 ± 0.029 0,0 10 2
i 20190505170526 12.348 ± 0.031 0,114 100 2
i 20190508164002 12.624 ± 0.029 0,0 100 2
i 20190509140533 12.596 ± 0.062 0,0 100 2
i 20190720124743 12.601 ± 0.069 0,0 100 2
i 20210411183047 12.661 ± 0.028 0,0 10 2
z 20140719115035 13.204 ± 0.031 16,0 20 2
z 20140722114259 12.022 ± 0.031 2,0 20 2
z 20140729111235 12.024 ± 0.026 2,0 20 2
z 20150901084353 12.036 ± 0.03 3,2 100 2
z 20150901084754 12.038 ± 0.031 0,3 100 2
z 20160420172420 12.030 ± 0.023 2,2 20 2
z 20180605125833 12.046 ± 0.023 0,0 20 2
z 20190505170726 12.034 ± 0.032 0,100 100 2
z 20190508164202 12.034 ± 0.024 0,0 100 2
z 20190509140733 12.026 ± 0.060 0,0 100 2
z 20190720124943 12.029 ± 0.066 0,0 100 2
z 20210411183118 12.093 ± 0.026 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.1 2.19
GAIA source ID 4121074210680316672 4121074210655238784
Bp mag. 14.620 --
G mag. 13.354 17.669
Rp mag. 12.251 --
Bp/Rp excess 1.388 --
Parallax (mas) 0.379 ± 0.017 0.346 ± 0.114
PM RA (mas/yr) -0.159 ± 0.020 -1.062 ± 0.152
PM Dec (mas/yr) -3.419 ± 0.013 -4.371 ± 0.098
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 10.484 ± 0.023
H 9.538 ± 0.02
K 9.257 ± 0.021
W1 9.062 ± 0.011
W2 9.211 ± 0.009
W3 9.007 ± 0.043
W4 7.939 ± 0.324
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.