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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179622406 (SMSS J172205.70-205506.4)

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Data releaseDR4
RA (deg)260.5238
Dec (deg)-20.9184
Galactic lon. (deg)3.8965
Galactic lat. (deg)8.8082
E(B-V) (SFD98) (mag)0.771
E(B-V) (GNILC) (mag)0.559 ± 0.025
Nearest DR4 source 179622405 (6.3 arcs away)
2nd-nearest DR4 source 1212671201 (7.2 arcs away)
3rd-nearest DR4 source 1212671199 (7.3 arcs away)
Times observed20
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.853 ± 0.052 18.069 ± 0.020 17.488 ± 0.040 17.213 ± 0.041
Petrosian mag. — — 18.787 ± 0.046 18.040 ± 0.051 17.523 ± 0.054 17.241 ± 0.061

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 20180718115326 18.842 ± 0.043 1,0 100 2
g 20180801105218 18.923 ± 0.059 3,0 100 2
r 20140626130951 18.092 ± 0.117 0,0 5 2
r 20160420170109 17.873 ± 0.139 0,0 5 2
r 20180718115528 18.029 ± 0.036 1,0 100 2
r 20180801105419 18.086 ± 0.051 3,0 100 2
r 20180802115408 18.089 ± 0.043 1,0 100 2
i 20140626131016 17.409 ± 0.079 0,0 10 2
i 20150831085034 17.577 ± 0.066 0,0 100 2
i 20160420170134 17.604 ± 0.115 0,0 10 2
i 20180718120132 17.506 ± 0.046 1,0 100 2
i 20190416152010 17.687 ± 0.059 0,0 100 2
i 20190419150817 17.646 ± 0.062 16,0 100 2
z 20140626131048 17.245 ± 0.086 0,0 20 2
z 20140627130923 17.428 ± 0.113 0,0 20 2
z 20160420170204 17.270 ± 0.117 0,0 20 2
z 20180315174748 17.494 ± 0.107 0,0 20 2
z 20180718120334 17.159 ± 0.053 0,0 100 2
z 20190416152212 17.336 ± 0.065 0,0 100 2
z 20190419151018 17.377 ± 0.071 16,0 100 2
z 20200513183957 17.395 ± 0.076 0,0 100 2
z 20210407183658 17.244 ± 0.111 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.12 3.88
GAIA source ID 4121147598709885312 4121147603031933824
Bp mag. 18.702 20.355
G mag. 17.918 19.601
Rp mag. 17.087 18.788
Bp/Rp excess 1.258 1.252
Parallax (mas) 0.352 ± 0.122 0.306 ± 0.375
PM RA (mas/yr) -1.372 ± 0.149 -3.481 ± 0.476
PM Dec (mas/yr) -3.600 ± 0.100 -5.274 ± 0.306
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 19.082 ± 0.006
r 18.104 ± 0.002
i 17.623 ± 0.006
z 17.37 ± 0.006
Y -- ± --
J 15.878 ± 0.009
H -- ± --
K 15.2 ± 0.016
W1 15.018 ± 0.02
W2 15.336 ± 0.066
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.