Log-in to SkyMapper

Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900623 (SMSS J172817.75-203623.5)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)262.0740
Dec (deg)-20.6064
Galactic lon. (deg)4.9631
Galactic lat. (deg)7.7668
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.742 ± 0.036
Nearest DR4 source 179900625 (4.2 arcs away)
2nd-nearest DR4 source 179900627 (6.0 arcs away)
3rd-nearest DR4 source 179900626 (7.1 arcs away)
Times observed20
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 19.654 ± 0.11 18.672 ± 0.072 18.022 ± 0.047 17.640 ± 0.054
Petrosian mag. — — 19.499 ± 0.092 18.366 ± 0.139 17.693 ± 0.097 17.245 ± 0.183

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 19.781 ± 0.074 3,0 100 2
g 20190506165109 19.776 ± 0.070 3,0 100 2
r 20190505165926 18.803 ± 0.061 3,0 100 2
r 20190506165309 18.795 ± 0.058 3,0 100 2
r 20190507143327 18.701 ± 0.071 3,0 100 2
r 20190822094324 18.782 ± 0.056 3,0 100 2
i 20150901084153 18.165 ± 0.066 1,0 100 2
i 20160420172350 18.443 ± 0.243 0,0 10 2
i 20190505170526 18.078 ± 0.060 3,0 100 2
i 20190508164002 18.061 ± 0.079 0,0 100 2
i 20190509140533 18.096 ± 0.075 1,0 100 2
i 20190720124743 18.022 ± 0.079 3,0 100 2
i 20200513190610 18.138 ± 0.083 1,0 100 2
z 20140722114259 17.861 ± 0.146 0,0 20 2
z 20150901084353 17.595 ± 0.067 1,0 100 2
z 20160420172420 18.102 ± 0.219 0,0 20 2
z 20190505170726 17.658 ± 0.074 0,0 100 2
z 20190508164202 17.823 ± 0.096 0,0 100 2
z 20190509140733 17.682 ± 0.089 0,0 100 2
z 20190720124943 17.607 ± 0.084 1,0 100 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 3.08
GAIA source ID 4121022293072338432 4121022293072327680
Bp mag. 19.626 20.544
G mag. 18.645 19.593
Rp mag. 17.723 18.714
Bp/Rp excess 1.278 1.248
Parallax (mas) 0.433 ± 0.263 0.219 ± 0.580
PM RA (mas/yr) -3.425 ± 0.262 -2.495 ± 0.523
PM Dec (mas/yr) -2.801 ± 0.204 -8.295 ± 0.385
A.E.N. (mas) 0.280 ± 0.375 0.0 ± 0.0

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 18.81 ± 0.004
i -- ± --
z -- ± --
Y -- ± --
J 16.234 ± 0.014
H -- ± --
K 15.452 ± 0.023
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.