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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829642 (SMSS J172556.50-204158.7)

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Data releaseDR4
RA (deg)261.4854
Dec (deg)-20.6997
Galactic lon. (deg)4.5811
Galactic lat. (deg)8.1778
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 2268062242 (5.7 arcs away)
2nd-nearest DR4 source 179829617 (6.4 arcs away)
3rd-nearest DR4 source 179829615 (6.7 arcs away)
Times observed43
Total bad pixels2
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.487 ± 0.027 16.585 ± 0.022 15.814 ± 0.021 15.397 ± 0.022
Petrosian mag. — — 17.083 ± 0.087 16.371 ± 0.021 15.560 ± 0.028 15.149 ± 0.035

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 20140719114908 17.532 ± 0.063 1,0 5 2
g 20140722114132 17.471 ± 0.056 0,0 5 2
g 20140729111106 17.418 ± 0.049 0,0 5 2
g 20160420170043 17.482 ± 0.080 0,0 5 2
g 20180605124544 17.572 ± 0.082 0,0 5 2
g 20190505165725 17.451 ± 0.026 3,0 100 2
g 20190506165109 17.453 ± 0.025 3,0 100 2
g 20190507143127 17.468 ± 0.026 3,0 100 2
g 20190822094124 17.441 ± 0.033 3,0 100 2
g 20210407183532 17.384 ± 0.069 16,0 5 2
r 20140719114939 16.645 ± 0.045 3,0 5 2
r 20140722114203 16.616 ± 0.040 3,0 5 2
r 20140729111131 16.573 ± 0.038 1,0 5 2
r 20160420170109 16.645 ± 0.05 0,0 5 2
r 20190505165926 16.605 ± 0.032 3,0 100 2
r 20190506165309 16.602 ± 0.026 3,0 100 2
r 20190507143327 16.606 ± 0.030 3,0 100 2
r 20190822094324 16.583 ± 0.032 3,0 100 2
r 20200524153415 16.664 ± 0.051 3,0 5 2
r 20210407183558 16.630 ± 0.053 17,0 5 2
i 20140719115004 15.805 ± 0.032 3,0 10 2
i 20140722114229 15.842 ± 0.034 3,0 10 2
i 20140729111202 15.891 ± 0.031 3,0 10 2
i 20150901084153 15.843 ± 0.029 3,0 100 2
i 20150901084554 15.846 ± 0.030 3,0 100 2
i 20160420170134 15.867 ± 0.035 3,0 10 2
i 20180605124636 15.847 ± 0.040 3,0 10 2
i 20190505170526 15.85 ± 0.028 3,0 100 2
i 20190508164002 15.832 ± 0.030 3,0 100 2
i 20190509140533 15.881 ± 0.035 3,0 100 2
i 20190720124743 15.829 ± 0.052 3,0 100 2
i 20200513190610 15.807 ± 0.022 3,0 100 2
i 20200524153441 15.860 ± 0.039 3,0 10 2
i 20210407183626 15.865 ± 0.041 19,0 10 2
z 20140719115035 15.393 ± 0.032 3,0 20 2
z 20140722114259 15.441 ± 0.033 3,0 20 2
z 20140729111235 15.464 ± 0.029 3,0 20 2
z 20150901084353 15.427 ± 0.026 3,0 100 2
z 20150901084754 15.431 ± 0.028 3,0 100 2
z 20160420170204 15.474 ± 0.031 3,2 20 2
z 20180605124707 15.385 ± 0.038 3,0 20 2
z 20190505170726 15.425 ± 0.030 3,0 100 2
z 20190508164202 15.413 ± 0.028 3,0 100 2
z 20190509140733 15.461 ± 0.040 3,0 100 2
z 20190720124943 15.420 ± 0.050 3,0 100 2
z 20200513190811 15.400 ± 0.026 3,0 100 2
z 20200524153511 15.337 ± 0.040 3,0 20 3
z 20210407183658 15.380 ± 0.039 19,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.18 1.96
GAIA source ID 4121123173288579456 4121123173247421184
Bp mag. 17.438 --
G mag. 16.540 --
Rp mag. 15.572 17.057
Bp/Rp excess 1.343 --
Parallax (mas) 0.057 ± 0.057 0.553 ± 0.510
PM RA (mas/yr) -6.728 ± 0.073 -0.357 ± 0.683
PM Dec (mas/yr) -2.594 ± 0.049 -7.703 ± 0.475
A.E.N. (mas) 0.0 ± 0.000 2.369 ± 7.221

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 17.726 ± 0.005
r 16.616 ± 0.002
i 15.962 ± 0.003
z 15.616 ± 0.003
Y -- ± --
J 14.151 ± 0.038
H 13.497 ± 0.046
K 13.343 ± 0.036
W1 -- ± --
W2 -- ± --
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.