Log-in to SkyMapper

Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900630 (SMSS J172816.50-203557.7)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)262.0688
Dec (deg)-20.5994
Galactic lon. (deg)4.9664
Galactic lat. (deg)7.7747
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900622 (7.8 arcs away)
2nd-nearest DR4 source 179900633 (7.8 arcs away)
3rd-nearest DR4 source 179900631 (12.0 arcs away)
Times observed20
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 17.977 ± 0.043 16.834 ± 0.022 15.974 ± 0.013 15.462 ± 0.014
Petrosian mag. 18.014 ± 0.112 17.009 ± 0.045 15.923 ± 0.053 15.481 ± 0.027

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 20140722114132 18.026 ± 0.089 0,0 5 2
g 20160420172300 17.916 ± 0.110 0,0 5 2
r 20140719114939 16.762 ± 0.051 3,0 5 2
r 20140722114203 16.901 ± 0.049 0,0 5 2
r 20160420172325 16.832 ± 0.051 0,0 5 2
r 20210407183558 16.869 ± 0.057 3,0 5 2
i 20140719115004 16.008 ± 0.036 3,0 10 2
i 20140722114229 16.000 ± 0.038 3,0 10 2
i 20150901084153 15.948 ± 0.029 3,0 100 2
i 20160420172350 16.020 ± 0.036 0,0 10 2
i 20190505170526 15.932 ± 0.031 3,0 100 2
i 20190509140533 15.943 ± 0.050 3,0 100 2
i 20210407183626 15.928 ± 0.039 3,0 10 2
z 20140719115035 15.463 ± 0.035 3,0 20 2
z 20140722114259 15.461 ± 0.032 3,0 20 2
z 20150901084353 15.449 ± 0.026 3,0 100 2
z 20160420172420 15.456 ± 0.030 3,0 20 2
z 20180605125833 15.549 ± 0.041 3,0 20 2
z 20190505170726 15.440 ± 0.030 3,0 100 2
z 20210407183658 15.458 ± 0.036 3,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.23 1.92
GAIA source ID 4121034044140275200 4121034044102968064
Bp mag. 17.759 19.920
G mag. 16.662 19.591
Rp mag. 15.630 18.541
Bp/Rp excess 1.354 1.643
Parallax (mas) 0.138 ± 0.078 0.414 ± 0.556
PM RA (mas/yr) -2.676 ± 0.079 0.694 ± 0.543
PM Dec (mas/yr) -7.973 ± 0.061 -1.184 ± 0.387
A.E.N. (mas) 0.0 ± 0.0 0.169 ± 0.036

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 16.816 ± 0.002
i -- ± --
z -- ± --
Y -- ± --
J 13.946 ± 0.028
H 13.181 ± 0.037
K 12.941 ± 0.029
W1 12.91 ± 0.013
W2 13.062 ± 0.012
W3 11.396 ± --
W4 8.238 ± --
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.