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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821020 (SMSS J172715.27-205054.7)

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Data releaseDR4
RA (deg)261.8137
Dec (deg)-20.8485
Galactic lon. (deg)4.6243
Galactic lat. (deg)7.8394
E(B-V) (SFD98) (mag)0.940
E(B-V) (GNILC) (mag)0.929 ± 0.041
Nearest DR4 source 179821019 (8.2 arcs away)
2nd-nearest DR4 source 179819795 (9.6 arcs away)
3rd-nearest DR4 source 179819796 (10.6 arcs away)
Times observed32
Total bad pixels4
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.944 ± 0.017 17.836 ± 0.017 16.878 ± 0.014 16.332 ± 0.014
Petrosian mag. — — 18.916 ± 0.057 17.717 ± 0.044 16.830 ± 0.028 16.307 ± 0.023

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 18.965 ± 0.038 3,0 100 2
g 20190506165109 18.903 ± 0.039 1,0 100 2
g 20190507143127 18.937 ± 0.038 3,0 100 2
r 20140722114203 17.811 ± 0.089 0,0 5 2
r 20140729111131 17.939 ± 0.093 512,0 5 2
r 20160420170109 17.858 ± 0.124 0,0 5 2
r 20190505165926 17.864 ± 0.035 3,0 100 2
r 20190506165309 17.816 ± 0.033 3,0 100 2
r 20190507143327 17.825 ± 0.038 3,0 100 2
i 20140719115004 16.809 ± 0.053 0,0 10 2
i 20140722114229 16.729 ± 0.049 0,0 10 2
i 20140729111202 16.904 ± 0.053 0,0 10 2
i 20150901084153 16.875 ± 0.034 3,0 100 2
i 20150901084554 16.888 ± 0.032 3,0 100 2
i 20160420170134 16.866 ± 0.060 0,4 10 2
i 20180605124636 16.988 ± 0.073 0,0 10 2
i 20190419150817 16.896 ± 0.039 3,0 100 2
i 20190505170526 16.868 ± 0.033 3,0 100 2
i 20190508164002 16.853 ± 0.033 3,0 100 2
i 20190720124743 16.870 ± 0.059 3,0 100 2
i 20200524153441 16.829 ± 0.065 0,0 10 2
z 20140719115035 16.254 ± 0.049 0,0 20 2
z 20140722114259 16.245 ± 0.043 0,0 20 2
z 20140729111235 16.296 ± 0.045 0,0 20 2
z 20150901084353 16.336 ± 0.036 1,0 100 2
z 20150901084754 16.345 ± 0.034 3,0 100 2
z 20160420170204 16.283 ± 0.047 0,0 20 2
z 20180605124707 16.456 ± 0.061 0,0 20 2
z 20190419151018 16.350 ± 0.037 3,0 100 2
z 20190505170726 16.302 ± 0.034 3,0 100 2
z 20190508164202 16.331 ± 0.032 3,0 100 2
z 20190720124943 16.320 ± 0.058 3,0 100 2
z 20200513183957 16.316 ± 0.039 3,0 100 2
z 20200524153511 16.326 ± 0.065 3,0 20 3

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.28 1.96
GAIA source ID 4121011293628736128 4121011297965772416
Bp mag. 18.758 --
G mag. 17.859 21.114
Rp mag. 16.578 --
Bp/Rp excess 1.687 --
Parallax (mas) -0.467 ± 0.174 -- ± --
PM RA (mas/yr) -5.302 ± 0.204 -- ± --
PM Dec (mas/yr) -6.111 ± 0.142 -- ± --
A.E.N. (mas) 1.017 ± 15.101 2.623 ± 0.347

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.178 ± 0.007
r 17.672 ± 0.002
i 16.922 ± 0.006
z 16.464 ± 0.005
Y -- ± --
J 14.83 ± 0.034
H 13.981 ± 0.028
K 13.794 ± 0.043
W1 13.727 ± 0.016
W2 13.852 ± 0.019
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.