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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 1218842782 (SMSS J172111.99-201451.0)

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Data releaseDR4
RA (deg)260.2999
Dec (deg)-20.2475
Galactic lon. (deg)4.3451
Galactic lat. (deg)9.3540
E(B-V) (SFD98) (mag)0.468
E(B-V) (GNILC) (mag)0.392 ± 0.017
Nearest DR4 source 1218842781 (5.4 arcs away)
2nd-nearest DR4 source 184980855 (8.7 arcs away)
3rd-nearest DR4 source 184980833 (10.9 arcs away)
Times observed2
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — — 19.454 ± 0.114 18.945 ± 0.265 —
Petrosian mag. — — — 19.916 ± 0.117 19.438 ± 0.163 —

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)
r 20180718115528 19.787 ± 0.111 0,0 100 2
i 20180718120132 19.399 ± 0.148 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.08 3.65
GAIA source ID 4121949146984015616 4121949146984025728
Bp mag. 20.029 20.697
G mag. 19.414 19.981
Rp mag. 18.801 19.423
Bp/Rp excess 1.152 1.078
Parallax (mas) 0.132 ± 0.382 -1.110 ± 0.554
PM RA (mas/yr) -0.617 ± 0.488 -1.469 ± 0.670
PM Dec (mas/yr) -5.419 ± 0.305 0.470 ± 0.431
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 20.277 ± 0.010
r 19.655 ± 0.008
i 19.399 ± 0.015
z 19.224 ± 0.017
Y -- ± --
J 17.934 ± 0.053
H -- ± --
K 17.523 ± 0.140
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.