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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829620 (SMSS J172557.95-204224.8)

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Data releaseDR4
RA (deg)261.4915
Dec (deg)-20.7070
Galactic lon. (deg)4.5781
Galactic lat. (deg)8.1691
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 179829619 (9.7 arcs away)
2nd-nearest DR4 source 179829626 (10.2 arcs away)
3rd-nearest DR4 source 179829627 (10.5 arcs away)
Times observed19
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 19.669 ± 0.021 18.824 ± 0.018 18.161 ± 0.033 17.793 ± 0.036
Petrosian mag. 19.904 ± 0.081 19.016 ± 0.082 18.341 ± 0.067 18.005 ± 0.062

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 19.655 ± 0.072 0,0 100 2
g 20190506165109 19.659 ± 0.066 0,0 100 2
g 20190507143127 19.645 ± 0.065 0,0 100 2
r 20190505165926 18.858 ± 0.070 0,0 100 2
r 20190506165309 18.788 ± 0.057 0,0 100 2
r 20190507143327 18.781 ± 0.055 0,0 100 2
r 20190822094324 18.87 ± 0.069 0,0 100 2
i 20140722114229 18.045 ± 0.130 0,0 10 2
i 20140729111202 18.183 ± 0.140 0,0 10 2
i 20150901084153 18.086 ± 0.061 0,0 100 2
i 20150901084554 18.238 ± 0.061 1024,9 100 2
i 20160420170134 18.05 ± 0.158 512,0 10 2
i 20190505170526 18.065 ± 0.060 0,0 100 2
i 20190508164002 18.304 ± 0.079 0,0 100 2
i 20190509140533 18.226 ± 0.075 0,0 100 2
i 20190720124743 18.138 ± 0.079 0,0 100 2
z 20140722114259 17.771 ± 0.131 0,0 20 2
z 20140729111235 17.976 ± 0.151 0,0 20 2
z 20150901084353 17.877 ± 0.081 0,0 100 2
z 20150901084754 18.102 ± 0.095 1024,13 100 2
z 20160420170204 17.849 ± 0.166 512,0 20 2
z 20190505170726 17.820 ± 0.085 1024,0 100 2
z 20190508164202 17.860 ± 0.089 1024,0 100 2
z 20190509140733 17.891 ± 0.099 0,0 100 2
z 20190720124943 17.714 ± 0.086 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.19 3.18
GAIA source ID 4121123168944666624 4121123104532722944
Bp mag. 19.539 19.953
G mag. 18.784 20.231
Rp mag. 17.783 18.853
Bp/Rp excess 1.420 2.435
Parallax (mas) -0.195 ± 0.207 -0.319 ± 0.681
PM RA (mas/yr) -1.368 ± 0.322 -5.934 ± 0.869
PM Dec (mas/yr) -5.710 ± 0.220 -7.920 ± 0.596
A.E.N. (mas) 0.146 ± 0.113 0.0 ± 0.000

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.894 ± 0.009
r 18.789 ± 0.004
i 18.210 ± 0.008
z 17.875 ± 0.009
Y -- ± --
J 16.493 ± 0.018
H -- ± --
K 15.862 ± 0.034
W1 16.587 ± 0.059
W2 17.558 ± --
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.