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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179829498 (SMSS J172556.01-204318.6)

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Data releaseDR4
RA (deg)261.4831
Dec (deg)-20.7222
Galactic lon. (deg)4.5609
Galactic lat. (deg)8.1673
E(B-V) (SFD98) (mag)0.876
E(B-V) (GNILC) (mag)0.721 ± 0.051
Nearest DR4 source 2268062115 (1.4 arcs away)
2nd-nearest DR4 source 179829496 (2.6 arcs away)
3rd-nearest DR4 source 179829497 (6.1 arcs away)
Times observed13
Total bad pixels0
Observing flags1

Magnitudes

Filter u v g r i z
PSF mag. — — 18.934 ± 0.111 17.862 ± 0.142 17.055 ± 0.108 16.506 ± 0.150
Petrosian mag. — — 18.735 ± 0.053 17.556 ± 0.054 16.729 ± 0.030 16.313 ± 0.059

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 19.177 ± 0.051 0,13 100 2
g 20190506165109 19.221 ± 0.048 0,0 100 2
g 20190507143127 19.234 ± 0.049 0,0 100 2
g 20190822094124 19.158 ± 0.055 0,0 100 2
r 20190505165926 18.222 ± 0.047 0,6 100 2
r 20190506165309 18.161 ± 0.039 0,0 100 2
r 20190507143327 18.217 ± 0.041 1,0 100 2
r 20190822094324 18.207 ± 0.046 1,0 100 2
i 20190508164002 17.341 ± 0.043 1,0 100 2
i 20190509140533 17.377 ± 0.047 0,0 100 2
i 20190720124743 17.347 ± 0.059 1,0 100 2
i 20200513190610 17.331 ± 0.046 0,0 100 2
z 20190508164202 16.832 ± 0.043 0,0 100 2
z 20190509140733 16.906 ± 0.054 0,0 100 2
z 20190720124943 16.885 ± 0.059 1,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 1.23 1.61
GAIA source ID 4121123001489869824 4121122997145971200
Bp mag. -- 19.115
G mag. 20.624 18.135
Rp mag. -- 17.068
Bp/Rp excess -- 1.419
Parallax (mas) -- ± -- 0.079 ± 0.143
PM RA (mas/yr) -- ± -- -1.665 ± 0.187
PM Dec (mas/yr) -- ± -- -3.360 ± 0.126
A.E.N. (mas) 2.622 ± 0.852 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.470 ± 0.008
r 18.185 ± 0.003
i 17.466 ± 0.005
z 17.042 ± 0.005
Y -- ± --
J 15.586 ± 0.007
H -- ± --
K 14.750 ± 0.011
W1 14.231 ± 0.017
W2 14.288 ± 0.026
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.