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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179831497 (SMSS J172534.63-203501.6)

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Data releaseDR4
RA (deg)261.3943
Dec (deg)-20.5838
Galactic lon. (deg)4.6320
Galactic lat. (deg)8.3126
E(B-V) (SFD98) (mag)0.622
E(B-V) (GNILC) (mag)0.484 ± 0.022
Nearest DR4 source 179831500 (6.1 arcs away)
2nd-nearest DR4 source 179831501 (10.3 arcs away)
3rd-nearest DR4 source 179831499 (11.8 arcs away)
Times observed35
Total bad pixels6
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 16.364 ± 0.015 15.45 ± 0.016 14.795 ± 0.013 14.428 ± 0.013
Petrosian mag. — — 16.008 ± 0.062 15.187 ± 0.050 14.63 ± 0.035 14.331 ± 0.028

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 16.418 ± 0.033 0,0 5 2
g 20140722114132 16.365 ± 0.032 0,0 5 2
g 20160420170043 16.382 ± 0.037 0,0 5 2
g 20180605124544 16.368 ± 0.036 0,0 5 2
g 20190505165725 16.362 ± 0.024 3,0 100 2
g 20190506165109 16.366 ± 0.018 3,0 100 2
g 20190507143127 16.339 ± 0.032 3,0 100 2
g 20190822094124 16.347 ± 0.032 3,0 100 2
r 20140719114939 15.448 ± 0.029 0,0 5 2
r 20140722114203 15.495 ± 0.027 0,0 5 2
r 20160420170109 15.477 ± 0.031 0,0 5 2
r 20190505165926 15.461 ± 0.032 3,1 100 2
r 20190506165309 15.471 ± 0.023 3,0 100 2
r 20190507143327 15.447 ± 0.038 3,0 100 2
r 20190822094324 15.460 ± 0.031 3,0 100 2
i 20140719115004 14.809 ± 0.025 0,0 10 2
i 20140722114229 14.801 ± 0.029 0,0 10 2
i 20150901084153 14.809 ± 0.028 1,0 100 2
i 20160420170134 14.814 ± 0.027 0,3 10 2
i 20180605124636 14.799 ± 0.036 0,0 10 2
i 20190505170526 14.816 ± 0.027 3,1 100 2
i 20190508164002 14.801 ± 0.031 3,0 100 2
i 20190509140533 14.847 ± 0.035 2,0 100 2
i 20190720124743 14.811 ± 0.051 3,0 100 2
i 20200513190610 14.813 ± 0.020 1,0 100 2
z 20140719115035 14.414 ± 0.026 0,0 20 2
z 20140722114259 14.439 ± 0.029 0,0 20 2
z 20150901084353 14.441 ± 0.025 2,0 100 2
z 20160420170204 14.438 ± 0.025 0,0 20 2
z 20180605124707 14.433 ± 0.034 0,0 20 2
z 20190505170726 14.429 ± 0.028 2,1 100 2
z 20190508164202 14.430 ± 0.027 0,0 100 2
z 20190509140733 14.474 ± 0.039 0,0 100 2
z 20190720124943 14.434 ± 0.049 0,0 100 2
z 20200513190811 14.45 ± 0.023 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.15 3.56
GAIA source ID 4121221712664705664 4121221716975519616
Bp mag. 16.258 20.462
G mag. 15.380 20.761
Rp mag. 14.462 19.288
Bp/Rp excess 1.304 2.590
Parallax (mas) 0.181 ± 0.031 -- ± --
PM RA (mas/yr) 0.816 ± 0.040 -- ± --
PM Dec (mas/yr) -6.336 ± 0.027 -- ± --
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 16.704 ± 0.003
r 15.541 ± 0.002
i 15.003 ± 0.002
z 14.681 ± 0.002
Y -- ± --
J 13.114 ± 0.023
H 12.489 ± 0.032
K 12.264 ± 0.024
W1 12.08 ± 0.014
W2 12.233 ± 0.012
W3 11.694 ± --
W4 8.741 ± --
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.