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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179857556 (SMSS J172644.78-202303.2)

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Data releaseDR4
RA (deg)261.6864
Dec (deg)-20.3838
Galactic lon. (deg)4.9523
Galactic lat. (deg)8.1926
E(B-V) (SFD98) (mag)0.760
E(B-V) (GNILC) (mag)0.577 ± 0.031
Nearest DR4 source 179857557 (5.6 arcs away)
2nd-nearest DR4 source 179857671 (7.6 arcs away)
3rd-nearest DR4 source 179857558 (7.7 arcs away)
Times observed15
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.829 ± 0.133 18.902 ± 0.131 18.169 ± 0.054 17.757 ± 0.029
Petrosian mag. 19.050 ± 0.100 18.596 ± 0.066 17.791 ± 0.075 17.304 ± 0.155

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 20190506165109 19.836 ± 0.076 3,0 100 2
r 20190505165926 18.969 ± 0.076 1,0 100 2
r 20190506165309 18.871 ± 0.063 3,0 100 2
i 20140729111202 18.259 ± 0.154 0,0 10 2
i 20150901084153 18.171 ± 0.062 25,7 100 2
i 20150901084554 18.097 ± 0.063 1,0 100 2
i 20190505170526 18.099 ± 0.064 1,0 100 2
i 20190509140533 18.166 ± 0.076 1,0 100 2
i 20200513190610 18.255 ± 0.091 1,0 100 2
z 20140722114259 17.635 ± 0.114 0,0 20 2
z 20140729111235 17.833 ± 0.138 0,0 20 2
z 20150901084353 17.871 ± 0.080 17,0 100 2
z 20150901084754 17.641 ± 0.072 1,0 100 2
z 20190505170726 17.815 ± 0.086 1,0 100 2
z 20190508164202 17.829 ± 0.092 1,0 100 2
z 20190509140733 17.823 ± 0.096 0,0 100 2
z 20190720124943 17.681 ± 0.089 1,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.85 2.06
GAIA source ID 4121230886738502528 4121230886721031296
Bp mag. 20.224 20.15
G mag. 19.533 19.020
Rp mag. 18.759 17.995
Bp/Rp excess 1.243 1.339
Parallax (mas) 0.639 ± 0.459 0.648 ± 0.290
PM RA (mas/yr) -0.432 ± 0.520 -1.622 ± 0.327
PM Dec (mas/yr) -10.922 ± 0.357 -6.530 ± 0.232
A.E.N. (mas) 1.281 ± 3.716 0.551 ± 1.150

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 19.538 ± 0.007
i 19.148 ± 0.021
z 18.945 ± 0.022
Y -- ± --
J 17.608 ± 0.046
H -- ± --
K 17.144 ± 0.117
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.