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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829504 (SMSS J172555.18-204246.6)

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Data releaseDR4
RA (deg)261.4800
Dec (deg)-20.7130
Galactic lon. (deg)4.5670
Galactic lat. (deg)8.1747
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 179829503 (4.6 arcs away)
2nd-nearest DR4 source 2268062121 (6.0 arcs away)
3rd-nearest DR4 source 179829510 (7.4 arcs away)
Times observed42
Total bad pixels4
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 17.817 ± 0.040 16.779 ± 0.039 15.847 ± 0.038 15.405 ± 0.036
Petrosian mag. — — 17.174 ± 0.092 16.283 ± 0.072 15.484 ± 0.046 15.136 ± 0.032

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 17.818 ± 0.077 0,0 5 2
g 20140722114132 17.887 ± 0.076 0,0 5 2
g 20140729111106 17.928 ± 0.072 0,0 5 2
g 20160420170043 17.880 ± 0.112 0,0 5 2
g 20190505165725 17.967 ± 0.028 3,0 100 2
g 20190506165109 18.041 ± 0.028 3,0 100 2
g 20190507143127 17.932 ± 0.028 3,0 100 2
g 20190822094124 17.783 ± 0.034 3,0 100 2
r 20140719114939 16.813 ± 0.05 0,0 5 2
r 20140722114203 16.827 ± 0.045 0,0 5 2
r 20140729111131 16.815 ± 0.043 0,0 5 2
r 20160420170109 16.811 ± 0.056 0,0 5 2
r 20190505165926 16.893 ± 0.033 3,0 100 2
r 20190506165309 16.928 ± 0.027 3,0 100 2
r 20190507143327 16.842 ± 0.03 3,0 100 2
r 20190822094324 16.759 ± 0.032 3,0 100 2
r 20200524153415 16.892 ± 0.059 16,0 5 2
r 20210407183558 16.814 ± 0.058 0,0 5 2
i 20140719115004 15.925 ± 0.033 0,0 10 2
i 20140722114229 15.899 ± 0.035 0,1 10 2
i 20140729111202 15.887 ± 0.031 0,0 10 2
i 20150901084153 16.041 ± 0.029 3,0 100 2
i 20150901084554 16.055 ± 0.030 3,0 100 2
i 20160420170134 15.921 ± 0.035 0,3 10 2
i 20180605124636 15.958 ± 0.042 0,0 10 2
i 20190505170526 16.035 ± 0.029 3,0 100 2
i 20190508164002 15.903 ± 0.031 3,0 100 2
i 20190509140533 15.998 ± 0.036 3,0 100 2
i 20190720124743 15.912 ± 0.052 3,0 100 2
i 20200513190610 15.911 ± 0.023 3,0 100 2
i 20200524153441 15.923 ± 0.040 17,0 10 2
i 20210407183626 15.939 ± 0.042 0,0 10 2
z 20140719115035 15.489 ± 0.033 1,0 20 2
z 20140722114259 15.485 ± 0.033 3,0 20 2
z 20140729111235 15.430 ± 0.029 2,0 20 2
z 20150901084353 15.465 ± 0.027 3,0 100 2
z 20150901084754 15.578 ± 0.029 3,0 100 2
z 20160420170204 15.458 ± 0.031 0,5 20 2
z 20180605124707 15.424 ± 0.038 0,0 20 2
z 20190505170726 15.452 ± 0.030 3,0 100 2
z 20190508164202 15.542 ± 0.028 3,0 100 2
z 20190509140733 15.556 ± 0.041 3,0 100 2
z 20190720124943 15.494 ± 0.050 3,0 100 2
z 20200513190811 15.430 ± 0.026 3,0 100 2
z 20200524153511 15.476 ± 0.042 19,0 20 3
z 20210407183658 15.432 ± 0.040 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.49 2.44
GAIA source ID 4121123070209357056 4121123070168161408
Bp mag. 17.798 19.200
G mag. 16.742 18.360
Rp mag. 15.700 17.263
Bp/Rp excess 1.373 1.491
Parallax (mas) 0.412 ± 0.066 0.757 ± 0.204
PM RA (mas/yr) -1.282 ± 0.084 -5.083 ± 0.282
PM Dec (mas/yr) -1.687 ± 0.057 -0.693 ± 0.182
A.E.N. (mas) 0.135 ± 0.998 0.822 ± 5.775

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.359 ± 0.004
r 16.935 ± 0.002
i 16.208 ± 0.003
z 15.787 ± 0.002
Y -- ± --
J 14.106 ± 0.045
H 13.376 ± 0.053
K 13.171 ± 0.045
W1 12.705 ± 0.013
W2 12.852 ± 0.011
W3 12.57 ± --
W4 8.929 ± --
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.