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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821064 (SMSS J172717.55-205007.4)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.8231
Dec (deg)-20.8354
Galactic lon. (deg)4.6403
Galactic lat. (deg)7.8391
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.903 ± 0.044
Nearest DR4 source 179821066 (9.8 arcs away)
2nd-nearest DR4 source 179821065 (14.5 arcs away)
Times observed23
Total bad pixels0
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 18.749 ± 0.019 17.894 ± 0.023 17.090 ± 0.022 16.751 ± 0.031
Petrosian mag. — — 18.697 ± 0.038 17.854 ± 0.032 17.01 ± 0.050 16.621 ± 0.075

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 20140729111106 18.763 ± 0.142 512,0 5 2
g 20190505165725 18.688 ± 0.033 16,0 100 2
g 20190506165109 18.751 ± 0.036 0,0 100 2
g 20190507143127 18.771 ± 0.034 0,0 100 2
r 20140722114203 17.705 ± 0.081 0,0 5 2
r 20140729111131 18.129 ± 0.108 512,0 5 2
r 20160420170109 18.219 ± 0.170 512,0 5 2
r 20190505165926 17.821 ± 0.034 16,0 100 2
r 20190506165309 17.910 ± 0.035 0,0 100 2
r 20190507143327 17.902 ± 0.039 0,0 100 2
i 20140719115004 17.184 ± 0.069 0,0 10 2
i 20140722114229 17.088 ± 0.061 0,0 10 2
i 20140729111202 17.217 ± 0.065 0,0 10 2
i 20150901084153 17.038 ± 0.036 0,0 100 2
i 20150901084554 17.042 ± 0.033 0,0 100 2
i 20160420170134 17.263 ± 0.082 0,0 10 2
i 20190505170526 17.063 ± 0.035 0,0 100 2
i 20190508164002 17.123 ± 0.036 0,0 100 2
i 20190509140533 17.128 ± 0.052 16,0 100 2
i 20200524153441 17.272 ± 0.089 0,0 10 2
i 20210407183626 17.239 ± 0.084 16,0 10 2
z 20140719115035 16.883 ± 0.077 0,0 20 2
z 20140722114259 16.667 ± 0.055 0,0 20 2
z 20140729111235 16.876 ± 0.064 0,0 20 2
z 20150901084353 16.657 ± 0.040 0,0 100 2
z 20150901084754 16.652 ± 0.038 0,0 100 2
z 20160420170204 16.794 ± 0.069 0,0 20 2
z 20180605124707 16.786 ± 0.076 0,0 20 2
z 20190505170726 16.723 ± 0.040 16,0 100 2
z 20190508164202 16.676 ± 0.038 0,0 100 2
z 20190509140733 16.773 ± 0.058 16,0 100 2
z 20200513183957 16.865 ± 0.052 0,0 100 2
z 20210407183658 16.830 ± 0.081 16,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.09 3.61
GAIA source ID 4121011327992647296 4121011332353975168
Bp mag. 18.576 20.960
G mag. 17.687 20.004
Rp mag. 16.774 19.025
Bp/Rp excess 1.296 1.338
Parallax (mas) 0.157 ± 0.107 -0.188 ± 0.490
PM RA (mas/yr) -0.408 ± 0.128 -0.106 ± 0.606
PM Dec (mas/yr) -7.561 ± 0.089 -8.029 ± 0.422
A.E.N. (mas) 0.307 ± 1.827 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 19.039 ± 0.005
r 17.912 ± 0.002
i 17.314 ± 0.004
z 16.980 ± 0.004
Y -- ± --
J 15.341 ± 0.007
H -- ± --
K 14.679 ± 0.012
W1 14.516 ± 0.017
W2 14.467 ± 0.025
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.