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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900732 (SMSS J172818.28-203510.8)

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Data releaseDR4
RA (deg)262.0762
Dec (deg)-20.5864
Galactic lon. (deg)4.9812
Galactic lat. (deg)7.7760
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900733 (7.6 arcs away)
2nd-nearest DR4 source 179900731 (8.8 arcs away)
3rd-nearest DR4 source 179900730 (12.3 arcs away)
Times observed26
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 19.071 ± 0.035 18.170 ± 0.047 17.562 ± 0.033 17.195 ± 0.037
Petrosian mag. — — 19.399 ± 0.045 18.397 ± 0.048 17.816 ± 0.038 17.513 ± 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 19.057 ± 0.045 0,0 100 2
g 20190506165109 19.01 ± 0.04 0,0 100 2
g 20190507143127 19.037 ± 0.061 0,0 100 2
g 20190822094124 19.068 ± 0.044 0,0 100 2
r 20140722114203 17.910 ± 0.103 0,0 5 2
r 20190505165926 18.179 ± 0.042 0,0 100 2
r 20190506165309 18.138 ± 0.040 0,0 100 2
r 20190507143327 18.157 ± 0.056 0,0 100 2
r 20190822094324 18.205 ± 0.041 0,0 100 2
i 20140719115004 17.553 ± 0.098 0,0 10 2
i 20140722114229 17.429 ± 0.083 0,0 10 2
i 20150901084153 17.489 ± 0.043 0,0 100 2
i 20160420172350 17.448 ± 0.101 0,0 10 2
i 20190505170526 17.447 ± 0.042 0,0 100 2
i 20190508164002 17.551 ± 0.057 0,0 100 2
i 20190509140533 17.520 ± 0.06 0,0 100 2
i 20190720124743 17.517 ± 0.069 0,0 100 2
i 20200513190610 17.570 ± 0.055 0,0 100 2
z 20140722114259 16.955 ± 0.070 0,0 20 2
z 20150901084353 17.123 ± 0.048 0,0 100 2
z 20160420172420 17.132 ± 0.093 0,0 20 2
z 20190505170726 17.153 ± 0.052 0,0 100 2
z 20190508164202 17.116 ± 0.055 0,0 100 2
z 20190509140733 17.189 ± 0.070 0,0 100 2
z 20190720124943 17.085 ± 0.069 0,0 100 2
z 20200513190811 17.276 ± 0.076 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.7 1.07
GAIA source ID 4121034074138080000 4121034078500596608
Bp mag. 19.108 --
G mag. 18.443 20.511
Rp mag. 17.396 --
Bp/Rp excess 1.496 --
Parallax (mas) 0.099 ± 0.234 -- ± --
PM RA (mas/yr) 5.263 ± 0.257 -- ± --
PM Dec (mas/yr) -1.415 ± 0.195 -- ± --
A.E.N. (mas) 0.297 ± 0.536 5.162 ± 4.265

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.381 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 16.099 ± 0.012
H -- ± --
K 15.483 ± 0.024
W1 15.329 ± 0.043
W2 15.384 ± 0.082
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.