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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821018 (SMSS J172713.90-205038.7)

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Data releaseDR4
RA (deg)261.8079
Dec (deg)-20.8441
Galactic lon. (deg)4.6251
Galactic lat. (deg)7.8463
E(B-V) (SFD98) (mag)0.940
E(B-V) (GNILC) (mag)0.929 ± 0.041
Nearest DR4 source 179821023 (9.0 arcs away)
2nd-nearest DR4 source 179821017 (11.1 arcs away)
3rd-nearest DR4 source 179821024 (12.7 arcs away)
Times observed29
Total bad pixels5
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 19.183 ± 0.018 18.291 ± 0.018 17.557 ± 0.015 17.152 ± 0.014
Petrosian mag. 19.212 ± 0.039 18.214 ± 0.044 17.497 ± 0.046 17.173 ± 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 19.205 ± 0.045 0,0 100 2
g 20190506165109 19.201 ± 0.047 0,0 100 2
g 20190507143127 19.130 ± 0.042 0,0 100 2
g 20190822094124 19.226 ± 0.047 0,0 100 2
r 20140722114203 18.319 ± 0.134 0,0 5 2
r 20140729111131 18.473 ± 0.144 512,0 5 2
r 20190505165926 18.328 ± 0.043 0,0 100 2
r 20190506165309 18.268 ± 0.041 0,0 100 2
r 20190507143327 18.330 ± 0.045 0,0 100 2
r 20190822094324 18.300 ± 0.041 0,0 100 2
i 20140719115004 17.666 ± 0.100 0,0 10 2
i 20140722114229 17.493 ± 0.082 0,0 10 2
i 20140729111202 17.487 ± 0.079 0,0 10 2
i 20150901084153 17.568 ± 0.045 0,0 100 2
i 20150901084554 17.571 ± 0.041 0,0 100 2
i 20160420170134 17.570 ± 0.106 0,3 10 2
i 20190419150817 17.588 ± 0.056 0,0 100 2
i 20190505170526 17.573 ± 0.043 0,0 100 2
i 20190508164002 17.574 ± 0.045 0,0 100 2
i 20190720124743 17.522 ± 0.065 0,2 100 2
z 20140722114259 17.084 ± 0.074 0,0 20 2
z 20140729111235 17.200 ± 0.081 0,0 20 2
z 20150901084353 17.151 ± 0.050 0,0 100 2
z 20150901084754 17.163 ± 0.049 0,0 100 2
z 20160420170204 17.127 ± 0.091 0,0 20 2
z 20190419151018 17.247 ± 0.063 0,0 100 2
z 20190505170726 17.195 ± 0.052 0,0 100 2
z 20190508164202 17.123 ± 0.049 0,0 100 2
z 20190720124943 17.161 ± 0.069 0,0 100 2
z 20200513183957 17.122 ± 0.061 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.18 3.64
GAIA source ID 4121011293628932480 4121011297965035904
Bp mag. 19.068 21.683
G mag. 18.129 20.749
Rp mag. 17.201 19.820
Bp/Rp excess 1.296 1.297
Parallax (mas) -0.002 ± 0.134 -- ± --
PM RA (mas/yr) -2.133 ± 0.169 -- ± --
PM Dec (mas/yr) -5.036 ± 0.120 -- ± --
A.E.N. (mas) 0.0 ± 0.0 0.375 ± 0.016

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.421 ± 0.008
r 18.286 ± 0.003
i 17.722 ± 0.009
z 17.336 ± 0.007
Y -- ± --
J 15.749 ± 0.009
H -- ± --
K 15.067 ± 0.017
W1 14.905 ± 0.016
W2 15.337 ± 0.058
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.