16397-4921 HJ 4873AB

 
 
16H 39M 43.61S -49 21' 01.8" P.A. 69 SEP 30.5 MAG 9.07,9.55 SP B1/2III
 
 
Coord 2000
16397-4921
Discov num
HJ 4873
Comp
AB
Coord arcsec 2000
16 39 43.61 -49 21 01.8
Date first
1836
Date last
1999
Obs
8
Pa first
72
Pa last
69
P.A. Now (θ)
69°
Sep first
31.8
Sep last
30.5
Sep. Now (ρ)
30.5"
Mag pri
9.07
Mag sec
9.55
delta mag (ΔM)
0.48
Spectral class
B1/2III (blue-white)
Pri motion ra
+003
Sec motion ra
-008
Pri motion dec
-005
Sec motion dec
-002
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
16397-4921 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227012 16397-4921 HJ 4873 AB 1836 1999 8 69 30.5 9.07 9.55 0.48 <===
Show 227012 16397-4921 HJ 4873 AC 1904 1999 4 169 13.3 9.07 12.26 3.19
Show 16397-4921 HJ 4873 BD 1904 1999 5 35 8.2 9.55 12.10 2.55
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ara
SAO
227012
Tycho2
8333-00680-1
HD
149855
last precise pa
69.3
last precise sep
30.51