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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829605 (SMSS J172556.57-204226.7)

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Data releaseDR4
RA (deg)261.4857
Dec (deg)-20.7074
Galactic lon. (deg)4.5747
Galactic lat. (deg)8.1734
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 179829606 (5.6 arcs away)
2nd-nearest DR4 source 179829614 (6.2 arcs away)
3rd-nearest DR4 source 179829603 (7.0 arcs away)
Times observed36
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — 18.921 ± 0.061 17.963 ± 0.054 17.555 ± 0.042 17.119 ± 0.040 16.868 ± 0.052
Petrosian mag. — 19.123 ± 0.103 17.638 ± 0.084 17.205 ± 0.042 16.824 ± 0.037 16.549 ± 0.051

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)
v 20190505170325 18.957 ± 0.098 0,0 100 1
v 20190505171125 18.981 ± 0.094 0,0 100 1
g 20140722114132 18.009 ± 0.083 0,0 5 2
g 20140729111106 18.097 ± 0.082 0,0 5 2
g 20190505165725 18.016 ± 0.029 3,0 100 2
g 20190506165109 18.032 ± 0.028 3,0 100 2
g 20190507143127 18.056 ± 0.029 3,0 100 2
g 20190822094124 18.327 ± 0.039 0,0 100 2
r 20140719114939 17.531 ± 0.082 0,0 5 2
r 20140722114203 17.667 ± 0.080 0,0 5 2
r 20140729111131 17.434 ± 0.063 0,0 5 2
r 20160420170109 17.713 ± 0.109 0,0 5 2
r 20190505165926 17.552 ± 0.037 3,0 100 2
r 20190506165309 17.499 ± 0.03 3,0 100 2
r 20190507143327 17.565 ± 0.033 3,0 100 2
r 20190822094324 17.554 ± 0.036 3,0 100 2
i 20140719115004 17.125 ± 0.067 0,0 10 2
i 20140722114229 17.097 ± 0.062 1,0 10 2
i 20140729111202 17.084 ± 0.059 0,0 10 2
i 20150901084153 17.133 ± 0.036 3,0 100 2
i 20150901084554 17.125 ± 0.035 3,0 100 2
i 20160420170134 17.165 ± 0.076 0,0 10 2
i 20190505170526 17.109 ± 0.036 3,0 100 2
i 20190508164002 17.097 ± 0.039 3,0 100 2
i 20190509140533 17.18 ± 0.043 3,0 100 2
i 20190720124743 17.131 ± 0.056 3,0 100 2
i 20200524153441 17.197 ± 0.082 0,0 10 2
i 20210407183626 17.305 ± 0.093 16,0 10 2
z 20140719115035 16.953 ± 0.081 1,0 20 2
z 20140722114259 16.918 ± 0.067 1,0 20 2
z 20140729111235 16.762 ± 0.056 0,0 20 2
z 20150901084353 16.868 ± 0.040 3,0 100 2
z 20150901084754 16.906 ± 0.041 3,0 100 2
z 20160420170204 16.812 ± 0.069 0,0 20 2
z 20190505170726 16.836 ± 0.043 3,0 100 2
z 20190508164202 16.815 ± 0.042 3,0 100 2
z 20190509140733 16.973 ± 0.056 3,0 100 2
z 20210407183658 17.097 ± 0.106 16,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.71 1.07
GAIA source ID 4121123173247375616 4121123173288572800
Bp mag. 18.275 --
G mag. 17.973 18.489
Rp mag. 17.122 --
Bp/Rp excess 1.470 --
Parallax (mas) 0.110 ± 0.128 0.264 ± 0.191
PM RA (mas/yr) -2.347 ± 0.164 3.014 ± 0.239
PM Dec (mas/yr) -0.843 ± 0.110 -4.557 ± 0.167
A.E.N. (mas) 0.0 ± 0.0 0.379 ± 1.071

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.151 ± 0.004
r 18.054 ± 0.002
i 17.990 ± 0.006
z 17.884 ± 0.006
Y -- ± --
J 16.803 ± 0.023
H -- ± --
K 16.647 ± 0.070
W1 15.319 ± 0.035
W2 16.184 ± 0.116
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.