20283+1846 HO  131AB

 
 
20H 28M 18.64S +18 46' 10.2" P.A. 331 SEP 3.5 MAG 6.97,10.60 SP G1V
 
 
Coord 2000
20283+1846
Discov num
HO  131
Comp
AB
Coord arcsec 2000
20 28 18.64 +18 46 10.2
Date first
1881
Date last
2002
Obs
13
Pa first
323
Pa last
331
P.A. Now (θ)
331°
Sep first
4.5
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
6.97
Mag sec
10.60
delta mag (ΔM)
3.63
Spectral class
G1V (yellow)
Pri motion ra
+349
Sec motion ra
Pri motion dec
-058
Sec motion dec
Notes
N V (See Notes, Proper motion indicates physical)
This double is physical.
 
 
20283+1846 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20283+1846 HO 131 AB 1881 2002 13 331 3.5 6.97 10.60 3.63 <===
Show 20283+1846 HO 131 AC 1895 2001 13 72 70.0 6.97 11.39 4.42
Show 20283+1846 HO 131 AD 1984 2001 4 98 83.7 6.97 11.77 4.80
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Delphinus
last precise pa
331.3
last precise sep
3.53