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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 184986677 (SMSS J172241.92-200954.5)

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Data releaseDR4
RA (deg)260.6747
Dec (deg)-20.1652
Galactic lon. (deg)4.6113
Galactic lat. (deg)9.1063
E(B-V) (SFD98) (mag)0.600
E(B-V) (GNILC) (mag)0.498 ± 0.021
Nearest DR4 source 1218854052 (5.4 arcs away)
2nd-nearest DR4 source 1218854050 (7.4 arcs away)
3rd-nearest DR4 source 1218854056 (9.1 arcs away)
Times observed30
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.028 ± 0.023 18.108 ± 0.017 17.475 ± 0.018 17.100 ± 0.016
Petrosian mag. — — 18.930 ± 0.082 18.016 ± 0.156 17.646 ± 0.031 17.321 ± 0.033

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 20180801105218 19.147 ± 0.054 0,0 100 2
g 20190505165725 19.008 ± 0.049 0,0 100 2
g 20190822092753 19.045 ± 0.049 0,0 100 2
g 20200224174822 19.079 ± 0.078 0,0 100 2
r 20140626130951 18.128 ± 0.116 0,0 5 2
r 20180801105419 18.152 ± 0.049 1,0 100 2
r 20180802115408 18.124 ± 0.048 2,0 100 2
r 20190505165926 18.121 ± 0.041 0,0 100 2
r 20190822092953 18.142 ± 0.038 3,0 100 2
i 20140626131016 17.475 ± 0.081 0,0 10 2
i 20140627130852 17.698 ± 0.106 0,0 10 2
i 20150831085034 17.551 ± 0.065 0,0 100 2
i 20160420170134 17.620 ± 0.11 0,0 10 2
i 20180315174718 17.388 ± 0.081 0,0 10 2
i 20180804082838 17.504 ± 0.047 16,0 100 2
i 20190416152010 17.538 ± 0.056 0,0 100 2
i 20190505170526 17.472 ± 0.042 0,0 100 2
i 20190508164002 17.566 ± 0.049 0,0 100 2
i 20190806103155 17.515 ± 0.050 0,0 100 2
i 20200513170714 17.463 ± 0.051 0,0 100 2
i 20210407183626 17.606 ± 0.114 0,0 10 2
z 20140626131048 17.350 ± 0.091 0,0 20 2
z 20140627130923 17.156 ± 0.086 0,0 20 2
z 20160420170204 17.168 ± 0.097 0,0 20 2
z 20180315174748 17.105 ± 0.078 0,0 20 2
z 20180804083039 17.277 ± 0.058 1040,0 100 2
z 20190416152212 17.232 ± 0.063 0,0 100 2
z 20190505170726 17.120 ± 0.049 0,0 100 2
z 20190508164202 17.154 ± 0.051 0,0 100 2
z 20190806103356 17.195 ± 0.053 0,0 100 2
z 20200513170916 17.094 ± 0.051 0,0 100 2
z 20210407183658 17.134 ± 0.102 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.07 3.82
GAIA source ID 4121965257411540992 4121965261719252096
Bp mag. 18.828 21.005
G mag. 17.95 20.166
Rp mag. 17.064 19.558
Bp/Rp excess 1.275 1.073
Parallax (mas) 0.142 ± 0.126 -1.357 ± 0.723
PM RA (mas/yr) -5.959 ± 0.162 -3.529 ± 0.945
PM Dec (mas/yr) -1.324 ± 0.116 -4.207 ± 0.691
A.E.N. (mas) 0.0 ± 0.0 1.985 ± 2.129

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.276 ± 0.006
r 18.106 ± 0.003
i 17.566 ± 0.004
z 17.255 ± 0.004
Y -- ± --
J 15.613 ± 0.007
H -- ± --
K 14.817 ± 0.013
W1 14.748 ± 0.017
W2 14.863 ± 0.03
W3 12.4 ± --
W4 8.808 ± --
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.