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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185206081 (SMSS J172842.08-201744.1)

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Data releaseDR4
RA (deg)262.1754
Dec (deg)-20.2956
Galactic lon. (deg)5.2787
Galactic lat. (deg)7.8556
E(B-V) (SFD98) (mag)0.754
E(B-V) (GNILC) (mag)0.652 ± 0.025
Nearest DR4 source 2275913231 (7.2 arcs away)
2nd-nearest DR4 source 185206066 (8.8 arcs away)
3rd-nearest DR4 source 1219145973 (11.2 arcs away)
Times observed21
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 19.047 ± 0.022 18.098 ± 0.022 17.309 ± 0.011 16.930 ± 0.015
Petrosian mag. — — 19.406 ± 0.062 18.323 ± 0.063 17.558 ± 0.023 17.242 ± 0.031

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 20190505165725 19.094 ± 0.044 1024,0 100 2
g 20190506165109 19.042 ± 0.045 0,0 100 2
g 20190507143127 19.107 ± 0.063 0,0 100 2
g 20190822094124 19.226 ± 0.056 0,6 100 2
r 20140722114203 18.120 ± 0.123 512,0 5 2
r 20140729111131 18.117 ± 0.116 0,0 5 2
r 20190505165926 18.114 ± 0.044 1024,0 100 2
r 20190506165309 18.121 ± 0.042 1024,0 100 2
r 20190507143327 18.101 ± 0.055 0,0 100 2
r 20190822094324 18.127 ± 0.047 0,7 100 2
i 20140719115004 17.341 ± 0.086 0,0 10 2
i 20140722114229 17.332 ± 0.079 0,0 10 2
i 20140729111202 17.321 ± 0.076 0,0 10 2
i 20150901084153 17.321 ± 0.042 0,0 100 2
i 20150901084554 17.333 ± 0.041 0,0 100 2
i 20160420172350 17.387 ± 0.11 512,0 10 2
i 20190505170526 17.323 ± 0.041 0,0 100 2
i 20190508164002 17.368 ± 0.051 0,0 100 2
i 20190509140533 17.333 ± 0.057 0,0 100 2
i 20190720124743 17.292 ± 0.073 0,0 100 2
i 20200513190610 17.416 ± 0.048 1040,0 100 2
z 20140719115035 17.182 ± 0.103 512,0 20 2
z 20140722114259 17.021 ± 0.075 0,0 20 2
z 20140729111235 16.850 ± 0.065 0,0 20 2
z 20150901084353 16.932 ± 0.045 1024,0 100 2
z 20150901084754 16.980 ± 0.048 0,0 100 2
z 20160420172420 17.005 ± 0.092 0,0 20 2
z 20190505170726 16.942 ± 0.049 0,0 100 2
z 20190508164202 16.993 ± 0.051 0,0 100 2
z 20190509140733 16.999 ± 0.067 0,0 100 2
z 20190720124943 16.965 ± 0.074 0,0 100 2
z 20200513190811 17.104 ± 0.065 1040,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.06 5.27
GAIA source ID 4121071148296085760 4121071152647114368
Bp mag. 18.879 21.265
G mag. 17.907 20.616
Rp mag. 16.959 19.395
Bp/Rp excess 1.304 1.694
Parallax (mas) 1.161 ± 0.115 -0.853 ± 2.193
PM RA (mas/yr) -1.377 ± 0.143 -1.345 ± 2.094
PM Dec (mas/yr) -2.519 ± 0.100 -3.684 ± 1.517
A.E.N. (mas) 0.0 ± 0.0 6.145 ± 6.669

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 15.497 ± 0.007
H -- ± --
K 14.643 ± 0.012
W1 14.654 ± 0.018
W2 15.032 ± 0.065
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.