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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179842301 (SMSS J172558.64-202510.1)

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Data releaseDR4
RA (deg)261.4943
Dec (deg)-20.4196
Galactic lon. (deg)4.8227
Galactic lat. (deg)8.3239
E(B-V) (SFD98) (mag)0.642
E(B-V) (GNILC) (mag)0.462 ± 0.022
Nearest DR4 source 179842300 (6.4 arcs away)
2nd-nearest DR4 source 1212919434 (7.4 arcs away)
3rd-nearest DR4 source 179842305 (8.2 arcs away)
Times observed35
Total bad pixels3
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 18.247 ± 0.071 18.015 ± 0.035 16.341 ± 0.024 15.743 ± 0.020 15.276 ± 0.018 15.034 ± 0.019
Petrosian mag. 18.092 ± 0.126 17.769 ± 0.189 16.121 ± 0.034 15.560 ± 0.051 15.103 ± 0.031 14.887 ± 0.030

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)
u 20190505165326 18.243 ± 0.064 1,0 100 2
v 20190505165526 18.022 ± 0.045 3,0 100 1
v 20190505171125 18.052 ± 0.045 3,0 100 1
v 20210412150202 18.012 ± 0.060 1,0 100 1
g 20140719114908 16.352 ± 0.036 3,0 5 2
g 20140729111106 16.378 ± 0.031 3,0 5 2
g 20160420170043 16.435 ± 0.039 3,0 5 2
g 20190505165725 16.336 ± 0.028 3,0 100 2
g 20190507143127 16.345 ± 0.033 3,0 100 2
r 20140719114939 15.774 ± 0.034 3,0 5 2
r 20140729111131 15.802 ± 0.028 1,0 5 2
r 20160420170109 15.765 ± 0.031 3,0 5 2
r 20190505165926 15.744 ± 0.034 3,0 100 2
r 20190507143327 15.744 ± 0.039 3,0 100 2
r 20190822094324 15.733 ± 0.036 3,0 100 2
r 20200524153415 15.783 ± 0.034 3,0 5 2
i 20140719115004 15.340 ± 0.033 3,0 10 2
i 20140729111202 15.293 ± 0.029 3,0 10 2
i 20150901084554 15.291 ± 0.031 3,0 100 2
i 20160420170134 15.340 ± 0.028 3,0 10 2
i 20190505170526 15.294 ± 0.034 3,0 100 2
i 20190508164002 15.270 ± 0.032 3,0 100 2
i 20190509140533 15.315 ± 0.036 3,0 100 2
i 20190720124743 15.264 ± 0.061 3,0 100 2
i 20200513190610 15.291 ± 0.022 3,0 100 2
i 20200524153441 15.307 ± 0.034 3,0 10 2
z 20140719115035 15.084 ± 0.032 3,0 20 2
z 20140729111235 15.052 ± 0.031 1,0 20 2
z 20150901084754 15.045 ± 0.032 3,0 100 2
z 20160420170204 15.058 ± 0.027 3,0 20 2
z 20190505170726 15.057 ± 0.032 3,0 100 2
z 20190508164202 15.041 ± 0.027 3,0 100 2
z 20190509140733 15.087 ± 0.041 3,0 100 2
z 20190720124943 15.049 ± 0.058 3,3 100 2
z 20200513190811 15.052 ± 0.025 3,0 100 2
z 20200524153511 15.125 ± 0.038 3,0 20 3

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.22 3.09
GAIA source ID 4121236594789218048 4121236590454973440
Bp mag. 16.358 20.115
G mag. 15.766 20.670
Rp mag. 14.986 19.076
Bp/Rp excess 1.284 3.038
Parallax (mas) 0.651 ± 0.038 -0.817 ± 1.637
PM RA (mas/yr) 5.872 ± 0.047 -2.253 ± 2.581
PM Dec (mas/yr) -6.357 ± 0.032 -3.090 ± 1.258
A.E.N. (mas) 0.0 ± 0.0 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 16.564 ± 0.003
r 15.885 ± 0.002
i 15.494 ± 0.002
z 15.313 ± 0.002
Y -- ± --
J 13.978 ± 0.028
H 13.529 ± 0.026
K 13.367 ± 0.032
W1 13.31 ± 0.014
W2 13.432 ± 0.012
W3 12.061 ± --
W4 8.783 ± --
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.