18497-7300 R   314

 
 
18h 49m 43.67s -72 59' 44.6" P.A. 271 sep 1.9 mag 6.20,8.08 Sp B9.5IV-V
 
 
Coord 2000
18497-7300
Discov num
R   314
Comp
Coord arcsec 2000
18 49 43.67 -72 59 44.6
Date first
1880
Date last
1991
Obs
10
Pa first
260
Pa last
271
P.A. Now (θ)
271°
Sep first
1.0
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
6.20
Mag sec
8.08
delta mag (ΔM)
1.88
Spectral class
B9.5IV-V (blue-white)
Pri motion ra
+017
Sec motion ra
+017
Pri motion dec
-007
Sec motion dec
-007
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
270.8
Precise sep
1.948
Constellation
Pavo
SAO
257630
Tycho2
9300-02260-1
HD
172881
HR
7027
last precise pa
270.8
last precise sep
1.948
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18497-7300 R 314 1991 10 271 1.9 6.20 8.08 B9.5IV-V N D 184943.67-725944.6

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