Log-in to SkyMapper

Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179900725 (SMSS J172815.78-203505.5)

Find on Search these coordinates on SIMBAD   

Data releaseDR4
RA (deg)262.0658
Dec (deg)-20.5848
Galactic lon. (deg)4.9772
Galactic lat. (deg)7.7850
E(B-V) (SFD98) (mag)0.862
E(B-V) (GNILC) (mag)0.697 ± 0.034
Nearest DR4 source 179900726 (4.6 arcs away)
2nd-nearest DR4 source 179900728 (7.0 arcs away)
3rd-nearest DR4 source 1212979991 (8.4 arcs away)
Times observed28
Total bad pixels0
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. 18.942 ± 0.097 17.945 ± 0.059 17.163 ± 0.019 16.738 ± 0.015
Petrosian mag. 18.778 ± 0.132 17.648 ± 0.088 17.070 ± 0.042 16.742 ± 0.045

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 19.147 ± 0.048 0,0 100 2
g 20190506165109 19.360 ± 0.052 17,0 100 2
g 20190507143127 19.085 ± 0.062 0,0 100 2
g 20190822094124 19.198 ± 0.047 0,0 100 2
r 20140722114203 18.192 ± 0.131 0,0 5 2
r 20160420172325 17.974 ± 0.132 0,0 5 2
r 20190505165926 18.347 ± 0.046 1,0 100 2
r 20190506165309 18.388 ± 0.045 17,0 100 2
r 20190507143327 18.016 ± 0.054 0,0 100 2
r 20190822094324 18.206 ± 0.041 0,0 100 2
i 20140719115004 17.185 ± 0.073 0,0 10 2
i 20140722114229 17.098 ± 0.066 0,0 10 2
i 20150901084153 17.171 ± 0.037 2,0 100 2
i 20160420172350 17.186 ± 0.081 0,0 10 2
i 20190505170526 17.151 ± 0.038 2,0 100 2
i 20190508164002 17.222 ± 0.048 0,0 100 2
i 20190509140533 17.362 ± 0.058 0,0 100 2
i 20190720124743 17.245 ± 0.066 0,0 100 2
i 20200513190610 17.199 ± 0.045 0,0 100 2
i 20200524153441 17.266 ± 0.089 0,0 10 2
z 20140719115035 16.829 ± 0.075 0,0 20 2
z 20140722114259 16.712 ± 0.058 0,0 20 2
z 20150901084353 16.717 ± 0.038 0,0 100 2
z 20160420172420 16.879 ± 0.075 0,0 20 2
z 20180605125833 16.939 ± 0.105 0,0 20 2
z 20190505170726 16.733 ± 0.041 0,0 100 2
z 20190508164202 16.760 ± 0.044 0,0 100 2
z 20190509140733 16.708 ± 0.060 0,0 100 2
z 20190720124943 16.719 ± 0.064 0,0 100 2
z 20200513190811 16.737 ± 0.054 0,0 100 2
z 20210411183118 16.708 ± 0.075 24,21 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.19 1.79
GAIA source ID 4121034039778342528 4121034112825662464
Bp mag. 18.887 --
G mag. 17.849 20.502
Rp mag. 16.866 --
Bp/Rp excess 1.320 --
Parallax (mas) 0.313 ± 0.162 -4.185 ± 2.416
PM RA (mas/yr) -3.648 ± 0.161 -3.430 ± 1.708
PM Dec (mas/yr) -2.887 ± 0.125 -8.604 ± 1.363
A.E.N. (mas) 0.356 ± 1.775 0.871 ± 0.156

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g -- ± --
r 17.915 ± 0.003
i -- ± --
z -- ± --
Y -- ± --
J 15.254 ± 0.006
H -- ± --
K 14.364 ± 0.009
W1 14.248 ± 0.012
W2 14.481 ± 0.022
W3 12.391 ± --
W4 8.817 ± --
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.