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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 2268139416 (SMSS J172817.27-203641.1)

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Data releaseDR4
RA (deg)262.0720
Dec (deg)-20.6114
Galactic lon. (deg)4.9578
Galactic lat. (deg)7.7657
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900597 (1.9 arcs away)
2nd-nearest DR4 source 179900598 (4.3 arcs away)
3rd-nearest DR4 source 179900595 (8.3 arcs away)
Times observed13
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.156 ± 0.215 15.990 ± 0.172 15.351 ± 0.136 14.789 ± 0.235
Petrosian mag. — — 17.219 ± 0.025 16.124 ± 0.013 15.279 ± 0.016 14.815 ± 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 17.819 ± 0.029 3,0 100 2
g 20190507143127 17.914 ± 0.046 3,0 100 2
r 20190505165926 16.897 ± 0.031 3,0 100 2
r 20190506165309 16.907 ± 0.030 3,0 100 2
r 20190507143327 16.939 ± 0.046 3,0 100 2
r 20190822094324 16.857 ± 0.030 3,0 100 2
i 20190508164002 16.026 ± 0.036 3,0 100 2
i 20190509140533 16.154 ± 0.051 3,0 100 2
i 20190720124743 16.080 ± 0.061 3,0 100 2
i 20200513190610 16.117 ± 0.033 3,0 100 2
i 20210411183047 15.942 ± 0.047 0,0 10 2
z 20190720124943 15.645 ± 0.058 3,0 100 2
z 20200513190811 15.619 ± 0.037 3,0 100 2
z 20200524153511 15.468 ± 0.041 0,13 20 3

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 1.83 1.97
GAIA source ID 4121022189993087488 4121022185667335424
Bp mag. -- 17.362
G mag. 20.324 16.370
Rp mag. -- 15.348
Bp/Rp excess -- 1.370
Parallax (mas) -- ± -- 0.118 ± 0.075
PM RA (mas/yr) -- ± -- -2.453 ± 0.070
PM Dec (mas/yr) -- ± -- -2.968 ± 0.058
A.E.N. (mas) 0.221 ± 0.011 0.066 ± 0.305

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r -- ± --
i -- ± --
z -- ± --
Y -- ± --
J 13.794 ± 0.033
H 13.031 ± 0.038
K 12.788 ± 0.032
W1 12.456 ± 0.029
W2 12.591 ± 0.038
W3 11.778 ± --
W4 8.78 ± --
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.