12121-6614 SIN  71AD

 
 
12H 12M 06.21S -66 14' 04.8" P.A. 278 SEP 69.7 MAG 9.17,13.77 SP B1/B2III
 
 
Coord 2000
12121-6614
Discov num
SIN  71
Comp
AD
Coord arcsec 2000
12 12 06.21 -66 14 04.8
Date first
1987
Date last
2000
Obs
3
Pa first
278
Pa last
278
P.A. Now (θ)
278°
Sep first
69.9
Sep last
69.7
Sep. Now (ρ)
69.7"
Mag pri
9.17
Mag sec
13.77
delta mag (ΔM)
4.6
Spectral class
B1/B2III (blue-white)
Pri motion ra
+004
Sec motion ra
+003
Pri motion dec
+015
Sec motion dec
-018
Notes
rPM=1.809
This double is not physical.
 
 
12121-6614 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12121-6614 MLO 39 AB 1910 2000 5 201 5.9 9.16 12.40 3.24
Show 12121-6614 SIN 71 AC 1910 2000 4 289 50.5 9.17 12.04 2.87
Show 12121-6614 SIN 71 AD 1987 2000 3 278 69.7 9.17 13.77 4.60 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Musca
Tycho2
8986-02194-1
HD
106017
last precise pa
277.9
last precise sep
69.65