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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900632 (SMSS J172815.39-203543.9)

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Data releaseDR4
RA (deg)262.0643
Dec (deg)-20.5955
Galactic lon. (deg)4.9674
Galactic lat. (deg)7.7804
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900631 (8.9 arcs away)
2nd-nearest DR4 source 179900629 (10.4 arcs away)
3rd-nearest DR4 source 179900703 (11.0 arcs away)
Times observed18
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 18.940 ± 0.061 18.103 ± 0.103 17.477 ± 0.036 17.112 ± 0.037
Petrosian mag. 18.750 ± 0.044 17.739 ± 0.060 17.261 ± 0.039 16.944 ± 0.031

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 18.937 ± 0.042 0,0 100 2
g 20190507143127 18.939 ± 0.058 0,0 100 2
r 20140722114203 18.164 ± 0.128 512,0 5 2
r 20190507143327 18.112 ± 0.055 0,0 100 2
i 20140722114229 17.501 ± 0.088 0,0 10 2
i 20150901084153 17.414 ± 0.041 0,0 100 2
i 20160420172350 17.449 ± 0.101 0,0 10 2
i 20190505170526 17.394 ± 0.041 0,0 100 2
i 20190508164002 17.471 ± 0.054 0,0 100 2
i 20190509140533 17.412 ± 0.058 0,0 100 2
i 20200513190610 17.454 ± 0.052 0,0 100 2
z 20140722114259 17.074 ± 0.076 0,0 20 2
z 20150901084353 17.035 ± 0.045 0,0 100 2
z 20160420172420 17.073 ± 0.089 0,0 20 2
z 20190505170726 17.015 ± 0.048 0,0 100 2
z 20190508164202 17.091 ± 0.054 0,0 100 2
z 20190509140733 17.077 ± 0.067 0,0 100 2
z 20190720124943 17.064 ± 0.069 0,0 100 2
z 20200513190811 17.122 ± 0.068 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.84 1.16
GAIA source ID 4121034039778336256 4121034044110118144
Bp mag. 18.991 --
G mag. 18.297 20.255
Rp mag. 17.286 --
Bp/Rp excess 1.451 --
Parallax (mas) 0.028 ± 0.220 -- ± --
PM RA (mas/yr) -1.034 ± 0.228 -- ± --
PM Dec (mas/yr) -1.203 ± 0.174 -- ± --
A.E.N. (mas) 0.576 ± 2.540 8.594 ± 23.637

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.912 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 15.981 ± 0.011
H -- ± --
K 15.266 ± 0.020
W1 15.35 ± 0.023
W2 15.456 ± 0.054
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.