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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179849928 (SMSS J172748.30-204249.3)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)261.951
Dec (deg)-20.714
Galactic lon. (deg)4.809
Galactic lat. (deg)7.805
E(B-V) (SFD98) (mag)0.873
E(B-V) (GNILC) (mag)0.700 ± 0.030
Nearest DR4 source 2268084546 (9.8 arcs away)
2nd-nearest DR4 source 179849927 (10.1 arcs away)
3rd-nearest DR4 source 179849918 (11.4 arcs away)
Times observed2
Total bad pixels0
Observing flags1552

Magnitudes

Filter u v g r i z
PSF mag. — — 19.793 ± 0.063 18.825 ± -- 18.238 ± 0.041 17.885 ± --
Petrosian mag. — — 20.861 ± 0.31 19.243 ± -- 18.417 ± 0.119 18.250 ± --

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 19.887 ± 0.078 0,0 100 2
g 20190507143127 19.866 ± 0.072 16,0 100 2
r 20140729111131 19.144 ± 0.258 512,0 5 2
r 20190505165926 19.068 ± 0.074 1024,0 100 2
r 20190506165309 19.058 ± 0.071 1024,0 100 2
r 20190507143327 18.986 ± 0.062 16,0 100 2
r 20190822094324 19.076 ± 0.069 1024,0 100 2
i 20140729111202 18.163 ± 0.137 512,0 10 2
i 20150901084153 18.358 ± 0.075 1024,0 100 2
i 20150901084554 18.374 ± 0.069 1024,0 100 2
i 20160420172350 18.386 ± 0.229 10 2
i 20190505170526 18.347 ± 0.073 1024,0 100 2
i 20190509140533 18.260 ± 0.083 0,0 100 2
i 20190720124743 18.399 ± 0.094 1024,0 100 2
z 20140729111235 18.078 ± 0.169 512,0 20 2
z 20150901084353 18.103 ± 0.100 1024,0 100 2
z 20150901084754 17.962 ± 0.087 1024,0 100 2
z 20190505170726 18.158 ± 0.112 100 2
z 20190508164202 18.026 ± 0.106 1024,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.15 4.1
GAIA source ID 4121019578652947968 4121019578652962304
Bp mag. 19.532 20.54
G mag. 18.703 19.565
Rp mag. 17.860 18.708
Bp/Rp excess 1.252 1.222
Parallax (mas) 0.201 ± 0.223 0.445 ± 0.388
PM RA (mas/yr) 1.784 ± 0.248 -2.303 ± 0.425
PM Dec (mas/yr) -9.382 ± 0.184 -12.964 ± 0.305
A.E.N. (mas) 0.632 ± 2.028 0.222 ± 0.070

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.769 ± 0.007
i -- ± --
z -- ± --
Y -- ± --
J 16.536 ± 0.018
H -- ± --
K 15.801 ± 0.031
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.