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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900717 (SMSS J172815.33-203523.9)

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Data releaseDR4
RA (deg)262.0639
Dec (deg)-20.5900
Galactic lon. (deg)4.9718
Galactic lat. (deg)7.7837
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900704 (7.0 arcs away)
2nd-nearest DR4 source 179900713 (8.3 arcs away)
3rd-nearest DR4 source 179900703 (9.9 arcs away)
Times observed31
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.275 ± 0.045 17.374 ± 0.029 16.645 ± 0.018 16.245 ± 0.02
Petrosian mag. — — 17.853 ± 0.032 16.954 ± 0.068 16.326 ± 0.038 16.006 ± 0.045

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 18.323 ± 0.033 3,0 100 2
g 20190506165109 18.339 ± 0.028 19,7 100 2
g 20190507143127 18.299 ± 0.049 3,0 100 2
g 20190822094124 18.328 ± 0.032 3,0 100 2
r 20140719114939 17.572 ± 0.090 0,0 5 2
r 20140722114203 17.381 ± 0.068 0,0 5 2
r 20160420172325 17.387 ± 0.079 0,0 5 2
r 20190505165926 17.374 ± 0.033 3,0 100 2
r 20190506165309 17.406 ± 0.032 19,8 100 2
r 20190507143327 17.363 ± 0.048 3,0 100 2
r 20190822094324 17.384 ± 0.032 3,0 100 2
r 20210407183558 17.539 ± 0.093 16,0 5 2
i 20140719115004 16.640 ± 0.050 0,0 10 2
i 20140722114229 16.712 ± 0.052 0,0 10 2
i 20150901084153 16.625 ± 0.032 3,0 100 2
i 20160420172350 16.658 ± 0.054 0,0 10 2
i 20180605125802 16.636 ± 0.065 0,0 10 2
i 20190505170526 16.619 ± 0.033 3,0 100 2
i 20190508164002 16.65 ± 0.040 3,0 100 2
i 20190509140533 16.636 ± 0.052 3,0 100 2
i 20190720124743 16.618 ± 0.062 3,0 100 2
i 20200513190610 16.639 ± 0.036 3,0 100 2
i 20200524153441 16.782 ± 0.063 0,0 10 2
i 20210407183626 16.722 ± 0.058 16,0 10 2
z 20140719115035 16.274 ± 0.051 0,0 20 2
z 20140722114259 16.216 ± 0.043 0,0 20 2
z 20150901084353 16.192 ± 0.031 3,0 100 2
z 20160420172420 16.259 ± 0.047 0,0 20 2
z 20180605125833 16.400 ± 0.068 0,0 20 2
z 20190505170726 16.215 ± 0.034 3,0 100 2
z 20190508164202 16.211 ± 0.034 3,0 100 2
z 20190509140733 16.243 ± 0.056 3,0 100 2
z 20190720124943 16.215 ± 0.060 3,0 100 2
z 20200513190811 16.266 ± 0.043 3,0 100 2
z 20200524153511 16.291 ± 0.064 3,0 20 3
z 20210407183658 16.353 ± 0.057 16,0 20 2
z 20210411183118 16.199 ± 0.054 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.25 0.28
GAIA source ID 4121034039781096320 4121034044103107072
Bp mag. 18.260 --
G mag. 17.941 18.239
Rp mag. 16.368 --
Bp/Rp excess 2.333 --
Parallax (mas) 0.636 ± 0.476 -- ± --
PM RA (mas/yr) 8.097 ± 0.493 -- ± --
PM Dec (mas/yr) -14.223 ± 0.391 -- ± --
A.E.N. (mas) 2.606 ± 119.582 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.343 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 14.892 ± 0.059
H 14.25 ± 0.063
K 13.952 ± 0.064
W1 13.987 ± 0.011
W2 14.023 ± 0.016
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.