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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 184981261 (SMSS J172114.12-201351.1)

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Data releaseDR4
RA (deg)260.3088
Dec (deg)-20.2310
Galactic lon. (deg)4.3637
Galactic lat. (deg)9.3562
E(B-V) (SFD98) (mag)0.468
E(B-V) (GNILC) (mag)0.392 ± 0.019
Nearest DR4 source 1218843562 (3.8 arcs away)
2nd-nearest DR4 source 1218843551 (4.8 arcs away)
3rd-nearest DR4 source 2275600226 (5.6 arcs away)
Times observed8
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.758 ± 0.049 18.959 ± 0.027 18.376 ± 0.064 18.132 ± 0.135
Petrosian mag. 19.906 ± 0.111 19.101 ± 0.126 18.339 ± 0.285 18.056 ± 0.297

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 19.800 ± 0.083 3,0 100 2
r 20180718115528 19.018 ± 0.064 3,0 100 2
r 20180802115408 19.003 ± 0.074 3,0 100 2
r 20190822092953 18.964 ± 0.068 3,0 100 2
i 20180718120132 18.456 ± 0.075 3,0 100 2
i 20180804082838 18.440 ± 0.101 0,0 100 2
z 20140626131048 17.942 ± 0.156 0,0 20 2
z 20180718120334 18.333 ± 0.109 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 3.96
GAIA source ID 4121972610411616512 4121972614698585472
Bp mag. 19.655 19.648
G mag. 18.873 18.956
Rp mag. 18.099 18.250
Bp/Rp excess 1.211 1.189
Parallax (mas) 0.206 ± 0.306 0.290 ± 0.322
PM RA (mas/yr) -0.194 ± 0.352 0.047 ± 0.367
PM Dec (mas/yr) -5.626 ± 0.219 -3.053 ± 0.233
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 19.928 ± 0.008
r 19.023 ± 0.005
i 18.593 ± 0.008
z 18.365 ± 0.009
Y -- ± --
J 16.950 ± 0.022
H -- ± --
K 16.194 ± 0.042
W1 16.0 ± 0.127
W2 16.341 ± 0.165
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.