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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 184981252 (SMSS J172113.43-201408.5)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)260.3057
Dec (deg)-20.2359
Galactic lon. (deg)4.3579
Galactic lat. (deg)9.3559
E(B-V) (SFD98) (mag)0.468
E(B-V) (GNILC) (mag)0.392 ± 0.017
Nearest DR4 source 184981251 (1.3 arcs away)
2nd-nearest DR4 source 1218843550 (5.5 arcs away)
3rd-nearest DR4 source 1218843545 (10.1 arcs away)
Times observed3
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 16.920 ± 0.303 16.706 ± 0.025
Petrosian mag. 17.189 ± 0.027 16.871 ± 0.052

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 17.518 ± 0.039 0,0 100 2
z 20140626131048 16.858 ± 0.064 3,0 20 2
z 20180718120334 16.736 ± 0.049 3,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 1.01 2.36
GAIA source ID 4121972614698578688 4121972614734675712
Bp mag. 18.162 17.728
G mag. 17.454 16.877
Rp mag. 16.643 15.976
Bp/Rp excess 1.266 1.297
Parallax (mas) 0.224 ± 0.127 1.215 ± 0.091
PM RA (mas/yr) -2.441 ± 0.128 1.938 ± 0.093
PM Dec (mas/yr) -4.130 ± 0.085 -9.763 ± 0.062
A.E.N. (mas) 0.099 ± 0.217 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.437 ± 0.004
r 17.607 ± 0.002
i 17.154 ± 0.003
z 16.929 ± 0.003
Y -- ± --
J 15.550 ± 0.007
H -- ± --
K 14.773 ± 0.012
W1 13.643 ± 0.014
W2 13.74 ± 0.016
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.