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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179803100 (SMSS J172459.59-204524.2)

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Data releaseDR4
RA (deg)261.248
Dec (deg)-20.757
Galactic lon. (deg)4.410
Galactic lat. (deg)8.332
E(B-V) (SFD98) (mag)0.732
E(B-V) (GNILC) (mag)0.644 ± 0.028
Nearest DR4 source 179803099 (9.5 arcs away)
2nd-nearest DR4 source 179803102 (12.3 arcs away)
3rd-nearest DR4 source 179803098 (14.9 arcs away)
Times observed9
Total bad pixels0
Observing flags1537

Magnitudes

Filter u v g r i z
PSF mag. — — 19.018 ± 0.053 17.945 ± -- 17.719 ± 0.068 17.428 ± 0.027
Petrosian mag. — — 19.658 ± 0.107 18.221 ± -- 18.067 ± 0.094 17.762 ± 0.053

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 19.067 ± 0.047 1024,0 100 2
g 20190506165109 19.026 ± 0.043 1024,0 100 2
g 20190507143127 19.047 ± 0.047 0,0 100 2
g 20190822094124 19.086 ± 0.053 1024,0 100 2
r 20140722114203 18.336 ± 0.144 512,0 5 2
r 20140729111131 18.143 ± 0.115 512,0 5 2
r 20190505165926 18.346 ± 0.051 1024,0 100 2
r 20190506165309 18.352 ± 0.045 1024,0 100 2
r 20190507143327 18.371 ± 0.047 1024,0 100 2
r 20190822094324 18.334 ± 0.049 1024,0 100 2
i 20140722114229 17.975 ± 0.128 512,0 10 2
i 20140729111202 17.824 ± 0.108 512,0 10 2
i 20150901084153 17.788 ± 0.050 1024,0 100 2
i 20150901084554 17.752 ± 0.047 0,0 100 2
i 20160420170134 17.768 ± 0.126 512,0 10 2
i 20180804082838 17.906 ± 0.067 1024,0 100 2
i 20190505170526 17.772 ± 0.049 1024,0 100 2
i 20190509140533 17.958 ± 0.064 8192,0 100 2
i 20190720124743 17.853 ± 0.069 0,0 100 2
i 20200513170714 17.873 ± 0.069 9216,0 100 2
i 20200513190610 17.898 ± 0.075 8192,0 100 2
z 20140722114259 17.572 ± 0.113 512,0 20 2
z 20140729111235 17.551 ± 0.110 0,0 20 2
z 20150901084353 17.487 ± 0.061 0,0 100 2
z 20150901084754 17.444 ± 0.059 0,0 100 2
z 20160420170204 17.712 ± 0.156 512,0 20 2
z 20180804083039 17.562 ± 0.079 0,0 100 2
z 20190505170726 17.524 ± 0.067 0,0 100 2
z 20190509140733 17.693 ± 0.087 8192,0 100 2
z 20190720124943 17.529 ± 0.078 1,0 100 2
z 20200513170916 17.377 ± 0.067 8192,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.11 4.95
GAIA source ID 4121124685116952960 4121124719441875840
Bp mag. 18.861 21.803
G mag. 18.068 20.486
Rp mag. 17.288 19.744
Bp/Rp excess 1.213 1.050
Parallax (mas) 0.060 ± 0.145 0.551 ± 1.001
PM RA (mas/yr) -1.710 ± 0.182 0.625 ± 1.353
PM Dec (mas/yr) -2.977 ± 0.126 -9.331 ± 0.926
A.E.N. (mas) 0.395 ± 1.871 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.127 ± 0.010
r 18.269 ± 0.003
i 17.800 ± 0.010
z 17.533 ± 0.011
Y -- ± --
J 16.057 ± 0.011
H -- ± --
K 15.512 ± 0.022
W1 -- ± --
W2 -- ± --
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.