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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179821036 (SMSS J172717.55-205039.3)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.8232
Dec (deg)-20.8443
Galactic lon. (deg)4.6328
Galactic lat. (deg)7.8343
E(B-V) (SFD98) (mag)0.983
E(B-V) (GNILC) (mag)0.971 ± 0.050
Nearest DR4 source 179821042 (8.8 arcs away)
2nd-nearest DR4 source 179821039 (11.8 arcs away)
3rd-nearest DR4 source 179821035 (13.7 arcs away)
Times observed33
Total bad pixels2
Observing flags0

Magnitudes

Filter u v g r i z
PSF mag. — — 17.997 ± 0.017 16.788 ± 0.015 15.688 ± 0.009 15.055 ± 0.010
Petrosian mag. — — 18.059 ± 0.029 16.863 ± 0.023 15.731 ± 0.01 15.108 ± 0.011

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 20140719114908 17.995 ± 0.085 0,0 5 2
g 20140722114132 17.923 ± 0.078 0,0 5 2
g 20140729111106 18.264 ± 0.095 0,0 5 2
g 20190505165725 18.023 ± 0.025 16,0 100 2
g 20190506165109 18.009 ± 0.027 0,0 100 2
g 20190507143127 18.007 ± 0.025 0,0 100 2
g 20210407183532 17.774 ± 0.087 16,0 5 2
r 20140719114939 16.899 ± 0.050 0,0 5 2
r 20140722114203 16.772 ± 0.044 0,0 5 2
r 20140729111131 16.807 ± 0.043 0,0 5 2
r 20160420170109 16.803 ± 0.054 0,1 5 2
r 20190505165926 16.774 ± 0.027 16,0 100 2
r 20190506165309 16.782 ± 0.027 0,0 100 2
r 20190507143327 16.775 ± 0.034 0,0 100 2
r 20200524153415 16.869 ± 0.063 0,0 5 2
r 20210407183558 16.882 ± 0.058 16,0 5 2
i 20140719115004 15.645 ± 0.030 0,0 10 2
i 20140722114229 15.714 ± 0.032 0,0 10 2
i 20140729111202 15.669 ± 0.031 0,0 10 2
i 20150901084153 15.691 ± 0.029 0,0 100 2
i 20150901084554 15.677 ± 0.028 0,0 100 2
i 20160420170134 15.677 ± 0.029 0,0 10 2
i 20180605124636 15.684 ± 0.038 0,0 10 2
i 20190419150817 15.702 ± 0.031 0,0 100 2
i 20190505170526 15.691 ± 0.029 0,0 100 2
i 20190508164002 15.690 ± 0.027 0,0 100 2
i 20200524153441 15.658 ± 0.038 0,0 10 2
i 20210407183626 15.681 ± 0.036 16,0 10 2
z 20140719115035 15.034 ± 0.029 0,0 20 2
z 20140722114259 15.045 ± 0.029 0,0 20 2
z 20140729111235 15.043 ± 0.030 0,0 20 2
z 20150901084353 15.059 ± 0.031 0,0 100 2
z 20150901084754 15.048 ± 0.028 0,0 100 2
z 20160420170204 15.064 ± 0.026 0,0 20 2
z 20180605124707 15.034 ± 0.034 0,1 20 2
z 20190419151018 15.106 ± 0.028 0,0 100 2
z 20190505170726 15.062 ± 0.029 16,0 100 2
z 20190508164202 15.046 ± 0.025 0,0 100 2
z 20200513183957 15.061 ± 0.030 0,0 100 2
z 20200524153511 15.056 ± 0.036 0,0 20 3
z 20210407183658 15.051 ± 0.032 16,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.07 1.73
GAIA source ID 4121011297994231424 4121011297960357760
Bp mag. 17.756 --
G mag. 16.443 20.396
Rp mag. 15.308 --
Bp/Rp excess 1.414 --
Parallax (mas) 0.080 ± 0.054 0.591 ± 0.821
PM RA (mas/yr) -5.732 ± 0.063 -5.334 ± 1.015
PM Dec (mas/yr) -7.316 ± 0.044 -5.119 ± 0.747
A.E.N. (mas) 0.0 ± 0.000 2.377 ± 2.614

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.423 ± 0.005
r 16.764 ± 0.002
i 15.854 ± 0.003
z 15.309 ± 0.003
Y -- ± --
J 13.41 ± 0.019
H 12.459 ± 0.022
K 12.162 ± 0.023
W1 12.116 ± 0.012
W2 12.187 ± 0.01
W3 11.941 ± 0.387
W4 8.776 ± --
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.