12121-6614 SIN  71AC

 
 
12H 12M 06.21S -66 14' 04.8" P.A. 289 SEP 50.5 MAG 9.17,12.04 SP B1/2III
 
 
Coord 2000
12121-6614
Discov num
SIN  71
Comp
AC
Coord arcsec 2000
12 12 06.21 -66 14 04.8
Date first
1910
Date last
2000
Obs
4
Pa first
288
Pa last
289
P.A. Now (θ)
289°
Sep first
50.8
Sep last
50.5
Sep. Now (ρ)
50.5"
Mag pri
9.17
Mag sec
12.04
delta mag (ΔM)
2.87
Spectral class
B1/2III (blue-white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
+015
Sec motion dec
+005
Notes
rPM=0.644
Nature of this double is uncertain.
 
 
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
288.5
last precise sep
50.51