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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829602 (SMSS J172557.09-204237.2)

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Data releaseDR4
RA (deg)261.4879
Dec (deg)-20.7104
Galactic lon. (deg)4.5733
Galactic lat. (deg)8.1700
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 179829512 (8.9 arcs away)
2nd-nearest DR4 source 179829619 (9.0 arcs away)
3rd-nearest DR4 source 179829513 (10.4 arcs away)
Times observed8
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. 20.170 ± 0.058 19.255 ± 0.085 18.542 ± 0.035 18.078 ± 0.045
Petrosian mag. 20.848 ± 0.236 19.681 ± 0.222 18.809 ± 0.080 18.412 ± 0.112

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 20.352 ± 0.117 0,0 100 2
r 20190505165926 19.503 ± 0.117 100 2
r 20190506165309 19.296 ± 0.085 0,0 100 2
r 20190507143327 19.379 ± 0.085 0,0 100 2
i 20140729111202 18.29 ± 0.153 0,0 10 2
i 20150901084153 18.661 ± 0.095 0,0 100 2
i 20150901084554 18.636 ± 0.083 0,0 100 2
i 20190505170526 18.669 ± 0.096 1024,0 100 2
z 20150901084353 18.224 ± 0.109 0,0 100 2
z 20150901084754 18.377 ± 0.12 1024,0 100 2
z 20190505170726 18.304 ± 0.127 0,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.03 4.11
GAIA source ID 4121123168944664704 4121123104527874176
Bp mag. 19.842 20.616
G mag. 18.920 19.683
Rp mag. 18.018 18.820
Bp/Rp excess 1.276 1.239
Parallax (mas) 0.499 ± 0.242 0.463 ± 0.372
PM RA (mas/yr) 1.509 ± 0.343 0.556 ± 0.586
PM Dec (mas/yr) -2.633 ± 0.232 -5.626 ± 0.403
A.E.N. (mas) 0.030 ± 0.004 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 20.306 ± 0.011
r 19.176 ± 0.004
i 18.542 ± 0.010
z 18.208 ± 0.010
Y -- ± --
J 16.630 ± 0.020
H -- ± --
K 15.912 ± 0.036
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.