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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179842311 (SMSS J172559.78-202459.2)

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Data releaseDR4
RA (deg)261.4991
Dec (deg)-20.4165
Galactic lon. (deg)4.8278
Galactic lat. (deg)8.3218
E(B-V) (SFD98) (mag)0.642
E(B-V) (GNILC) (mag)0.462 ± 0.022
Nearest DR4 source 179842310 (4.5 arcs away)
2nd-nearest DR4 source 179842308 (8.0 arcs away)
3rd-nearest DR4 source 179842315 (9.7 arcs away)
Times observed10
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.401 ± 0.128 18.744 ± 0.047 18.206 ± 0.043 17.879 ± 0.066
Petrosian mag. 19.317 ± 0.104 18.726 ± 0.220 18.100 ± 0.104 17.797 ± 0.087

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 20190505165725 19.448 ± 0.068 1,0 100 2
r 20190505165926 18.749 ± 0.069 1,0 100 2
r 20190507143327 18.746 ± 0.069 1,0 100 2
i 20140729111202 17.981 ± 0.122 0,0 10 2
i 20150901084554 18.133 ± 0.064 3,0 100 2
i 20190505170526 18.190 ± 0.069 2,0 100 2
i 20190509140533 18.222 ± 0.074 1,0 100 2
i 20190720124743 18.197 ± 0.086 1,0 100 2
z 20150901084754 17.819 ± 0.082 0,0 100 2
z 20190505170726 17.984 ± 0.098 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.55 1.36
GAIA source ID 4121236594789071360 4121236594730275712
Bp mag. 19.519 --
G mag. 18.852 19.406
Rp mag. 18.016 --
Bp/Rp excess 1.302 --
Parallax (mas) 0.046 ± 0.207 0.099 ± 0.310
PM RA (mas/yr) -2.511 ± 0.258 -1.825 ± 0.407
PM Dec (mas/yr) -5.731 ± 0.177 -2.927 ± 0.281
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 19.422 ± 0.020
r 18.561 ± 0.009
i -- ± --
z -- ± --
Y -- ± --
J 17.030 ± 0.027
H -- ± --
K 16.370 ± 0.058
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.