Log-in to SkyMapper

Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900728 (SMSS J172816.30-203505.9)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)262.0679
Dec (deg)-20.5850
Galactic lon. (deg)4.9781
Galactic lat. (deg)7.7833
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900724 (5.4 arcs away)
2nd-nearest DR4 source 179900729 (6.9 arcs away)
3rd-nearest DR4 source 179900725 (7.0 arcs away)
Times observed17
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 19.552 ± 0.198 18.831 ± 0.079 18.073 ± 0.072 17.726 ± 0.056
Petrosian mag. 19.248 ± 0.078 18.108 ± 0.181 17.585 ± 0.066 17.627 ± 0.050

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 19.824 ± 0.076 1,0 100 2
g 20190506165109 19.856 ± 0.075 0,0 100 2
r 20190505165926 18.878 ± 0.064 1,0 100 2
r 20190506165309 18.941 ± 0.065 0,0 100 2
r 20190507143327 18.849 ± 0.076 1,0 100 2
r 20190822094324 18.954 ± 0.063 3,0 100 2
i 20150901084153 18.149 ± 0.065 1,0 100 2
i 20190505170526 18.101 ± 0.061 1,0 100 2
i 20190509140533 18.203 ± 0.079 1,0 100 2
i 20190720124743 18.148 ± 0.083 3,0 100 2
i 20200513190610 18.186 ± 0.086 1,0 100 2
z 20140722114259 17.830 ± 0.142 0,0 20 2
z 20150901084353 17.864 ± 0.083 0,0 100 2
z 20160420172420 17.646 ± 0.145 0,0 20 2
z 20190505170726 17.764 ± 0.08 0,0 100 2
z 20190509140733 17.870 ± 0.1 0,0 100 2
z 20190720124943 17.748 ± 0.091 1,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.18 1.49
GAIA source ID 4121034039781097984 4121034044142790912
Bp mag. 19.806 --
G mag. 18.897 20.895
Rp mag. 17.939 --
Bp/Rp excess 1.332 --
Parallax (mas) 0.002 ± 0.310 -- ± --
PM RA (mas/yr) -2.940 ± 0.295 -- ± --
PM Dec (mas/yr) -3.820 ± 0.233 -- ± --
A.E.N. (mas) 0.0 ± 0.0 6.096 ± 1.892

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.810 ± 0.005
i -- ± --
z -- ± --
Y -- ± --
J 16.471 ± 0.017
H -- ± --
K 15.734 ± 0.030
W1 15.546 ± 0.026
W2 15.797 ± 0.073
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.