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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179837519 (SMSS J172501.13-202216.6)

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Data releaseDR4
RA (deg)261.2547
Dec (deg)-20.3713
Galactic lon. (deg)4.7394
Galactic lat. (deg)8.5383
E(B-V) (SFD98) (mag)0.688
E(B-V) (GNILC) (mag)0.557 ± 0.026
Nearest DR4 source 179837518 (5.4 arcs away)
2nd-nearest DR4 source 179837576 (5.9 arcs away)
3rd-nearest DR4 source 179837517 (8.2 arcs away)
Times observed33
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.172 ± 0.020 18.282 ± 0.020 17.643 ± 0.017 17.288 ± 0.016
Petrosian mag. — — 18.988 ± 0.042 18.061 ± 0.094 17.542 ± 0.034 17.178 ± 0.050

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 19.217 ± 0.058 0,0 100 2
g 20190506165109 19.108 ± 0.046 0,0 100 2
g 20190507143127 19.159 ± 0.058 0,0 100 2
g 20190822094124 19.226 ± 0.056 0,0 100 2
r 20140722114203 18.306 ± 0.139 0,0 5 2
r 20140729111131 18.374 ± 0.142 0,0 5 2
r 20190505165926 18.275 ± 0.051 0,0 100 2
r 20190506165309 18.212 ± 0.041 3,0 100 2
r 20190507143327 18.303 ± 0.050 2,0 100 2
r 20190822094324 18.296 ± 0.050 0,0 100 2
i 20140719115004 17.584 ± 0.099 0,0 10 2
i 20140722114229 17.785 ± 0.107 0,0 10 2
i 20140729111202 17.473 ± 0.083 0,0 10 2
i 20150901084153 17.580 ± 0.046 3,0 100 2
i 20150901084554 17.537 ± 0.045 3,0 100 2
i 20160420170134 17.588 ± 0.108 0,0 10 2
i 20180804082838 17.640 ± 0.055 0,0 100 2
i 20190505170526 17.555 ± 0.048 1,0 100 2
i 20190509140533 17.652 ± 0.053 2,0 100 2
i 20190720124743 17.562 ± 0.070 0,0 100 2
i 20200513170714 17.651 ± 0.058 0,0 100 2
i 20200513190610 17.64 ± 0.057 0,0 100 2
z 20140722114259 17.228 ± 0.083 0,0 20 2
z 20140729111235 17.072 ± 0.074 0,0 20 2
z 20150901084353 17.183 ± 0.051 0,0 100 2
z 20150901084754 17.177 ± 0.053 0,0 100 2
z 20160420170204 17.289 ± 0.109 0,0 20 2
z 20180804083039 17.312 ± 0.064 0,0 100 2
z 20190505170726 17.283 ± 0.059 0,0 100 2
z 20190509140733 17.331 ± 0.067 0,0 100 2
z 20190720124943 17.245 ± 0.072 0,0 100 2
z 20200513170916 17.27 ± 0.061 0,0 100 2
z 20200513190811 17.385 ± 0.082 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.35 0.93
GAIA source ID 4121286794346131584 4121286794372574976
Bp mag. 18.976 --
G mag. 18.410 20.262
Rp mag. 17.299 --
Bp/Rp excess 1.602 --
Parallax (mas) 0.095 ± 0.264 0.697 ± 0.831
PM RA (mas/yr) -0.466 ± 0.348 -1.822 ± 1.253
PM Dec (mas/yr) -4.133 ± 0.221 -5.173 ± 0.731
A.E.N. (mas) 1.587 ± 18.997 2.515 ± 2.452

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.269 ± 0.008
r 18.126 ± 0.003
i 17.561 ± 0.006
z 17.243 ± 0.006
Y -- ± --
J 16.061 ± 0.010
H -- ± --
K 15.387 ± 0.020
W1 14.95 ± 0.018
W2 15.058 ± 0.037
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.