18503-3736 SWR 255

 
 
18h 50m 18.51s -37 35' 55.7" P.A. 30 sep 29.2 mag 10.99,10.97 Sp A5+A7
 
 
Coord 2000
18503-3736
Discov num
SWR 255
Comp
Coord arcsec 2000
18 50 18.51 -37 35 55.7
Date first
1913
Date last
2010
Obs
8
Pa first
31
Pa last
30
P.A. Now (θ)
30°
Sep first
28.8
Sep last
29.2
Sep. Now (ρ)
29.2"
Mag pri
10.99
Mag sec
10.97
delta mag (ΔM)
0.02
Spectral class
A5+A7 (white/white)
Pri motion ra
+005
Sec motion ra
+004
Pri motion dec
-011
Sec motion dec
-009
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.185 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
30.2
Precise sep
29.2
Constellation
Corona Austrina
last precise pa
30.2
last precise sep
29.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18503-3736 SWR 255 1999 4 30 29.2 11.00 11.00 A5 A7 N D 185018.51-373555.7
18503-3736 SWR 255 2000 7 30 29.2 10.99 10.97 A5+A7 NV 185018.51-373555.7
18503-3736 SWR 255 2010 8 30 29.2 10.99 10.97 A5+A7 NV 185018.51-373555.7

If you need more information about this double, apply for a data request form to the WDS.