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
Tycho2
7916-00100-1
Gaia DR2
6729488560499925888
 
 
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

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