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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179861201 (SMSS J172707.20-202359.4)

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Data releaseDR4
RA (deg)261.7800
Dec (deg)-20.3998
Galactic lon. (deg)4.9870
Galactic lat. (deg)8.1102
E(B-V) (SFD98) (mag)0.778
E(B-V) (GNILC) (mag)0.609 ± 0.031
Nearest DR4 source 179861229 (9.4 arcs away)
2nd-nearest DR4 source 179861231 (9.7 arcs away)
3rd-nearest DR4 source 179861200 (10.2 arcs away)
Times observed5
Total bad pixels0
Observing flags1024

Magnitudes

Filter u v g r i z
PSF mag. 19.895 ± 0.052 19.164 ± 0.033 18.543 ± 0.021 18.196 ± --
Petrosian mag. 20.270 ± 0.142 19.389 ± 0.129 18.877 ± 0.090 18.664 ± --

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 19.997 ± 0.088 0,0 100 2
r 20190505165926 19.342 ± 0.101 1024,0 100 2
r 20190506165309 19.174 ± 0.079 0,0 100 2
i 20150901084153 18.759 ± 0.103 1040,0 100 2
i 20150901084554 18.531 ± 0.088 0,0 100 2
i 20190505170526 18.546 ± 0.088 0,0 100 2
i 20190509140533 18.599 ± 0.101 0,0 100 2
z 20150901084353 18.393 ± 0.125 1024,0 100 2
z 20190505170726 18.308 ± 0.127 1024,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.1 1.9
GAIA source ID 4121228485889934976 4121228485839455744
Bp mag. 19.814 --
G mag. 19.007 20.296
Rp mag. 18.175 --
Bp/Rp excess 1.251 --
Parallax (mas) 0.099 ± 0.292 0.715 ± 0.952
PM RA (mas/yr) -5.259 ± 0.328 -4.412 ± 1.216
PM Dec (mas/yr) -2.332 ± 0.236 -7.190 ± 0.713
A.E.N. (mas) 0.0 ± 0.0 0.460 ± 0.105

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 19.104 ± 0.010
i -- ± --
z -- ± --
Y -- ± --
J 16.897 ± 0.024
H -- ± --
K 16.343 ± 0.057
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.