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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 185206103 (SMSS J172841.08-201719.6)

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Data releaseDR4
RA (deg)262.1711
Dec (deg)-20.2888
Galactic lon. (deg)5.2822
Galactic lat. (deg)7.8626
E(B-V) (SFD98) (mag)0.754
E(B-V) (GNILC) (mag)0.652 ± 0.025
Nearest DR4 source 185206094 (7.7 arcs away)
2nd-nearest DR4 source 185206102 (9.6 arcs away)
3rd-nearest DR4 source 1219145974 (12.9 arcs away)
Times observed34
Total bad pixels1
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.493 ± 0.064 17.575 ± 0.059 16.799 ± 0.042 16.374 ± 0.035
Petrosian mag. — — 18.309 ± 0.05 17.458 ± 0.036 16.594 ± 0.031 16.203 ± 0.033

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 18.547 ± 0.032 3,0 100 2
g 20190506165109 18.509 ± 0.035 3,0 100 2
g 20190507143127 18.563 ± 0.052 3,0 100 2
g 20190822094124 18.549 ± 0.043 3,0 100 2
r 20140722114203 17.868 ± 0.102 0,0 5 2
r 20140729111131 17.591 ± 0.076 0,0 5 2
r 20160420172325 17.550 ± 0.100 0,0 5 2
r 20190505165926 17.561 ± 0.037 3,0 100 2
r 20190506165309 17.517 ± 0.035 3,0 100 2
r 20190507143327 17.546 ± 0.049 3,0 100 2
r 20190822094324 17.598 ± 0.042 3,0 100 2
i 20140719115004 16.910 ± 0.064 0,0 10 2
i 20140722114229 16.954 ± 0.062 0,0 10 2
i 20140729111202 16.710 ± 0.051 0,0 10 2
i 20150901084153 16.731 ± 0.035 1,0 100 2
i 20150901084554 16.709 ± 0.034 1,0 100 2
i 20160420172350 16.871 ± 0.071 0,0 10 2
i 20180605125802 16.871 ± 0.076 0,0 10 2
i 20190505170526 16.744 ± 0.035 3,0 100 2
i 20190508164002 16.745 ± 0.041 3,0 100 2
i 20190509140533 16.712 ± 0.053 3,0 100 2
i 20190720124743 16.730 ± 0.070 3,0 100 2
z 20140719115035 16.402 ± 0.058 0,0 20 2
z 20140722114259 16.346 ± 0.049 0,0 20 2
z 20140729111235 16.355 ± 0.047 0,0 20 2
z 20150901084353 16.271 ± 0.036 1,0 100 2
z 20150901084754 16.258 ± 0.037 0,0 100 2
z 20160420172420 16.317 ± 0.056 0,1 20 2
z 20180605125833 16.392 ± 0.064 0,0 20 2
z 20190505170726 16.310 ± 0.038 1,0 100 2
z 20190508164202 16.295 ± 0.036 1,0 100 2
z 20190509140733 16.316 ± 0.059 3,0 100 2
z 20190720124943 16.311 ± 0.068 3,0 100 2
z 20210411183118 16.447 ± 0.065 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.75 1.4
GAIA source ID 4121071221383045120 4121071221357547520
Bp mag. 18.891 --
G mag. 18.078 20.555
Rp mag. 16.965 --
Bp/Rp excess 1.517 --
Parallax (mas) 0.179 ± 0.139 -- ± --
PM RA (mas/yr) -3.100 ± 0.201 -- ± --
PM Dec (mas/yr) -4.078 ± 0.135 -- ± --
A.E.N. (mas) 0.363 ± 1.539 3.270 ± 2.909

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.610 ± 0.008
i -- ± --
z -- ± --
Y -- ± --
J 15.461 ± 0.007
H -- ± --
K 14.633 ± 0.012
W1 13.808 ± 0.02
W2 14.03 ± 0.045
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.