12372-6908 DON 541AB (Alp Mus)

 
 
12h 37m 11.08s -69 08' 07.9" P.A. 321 sep 28.8 mag 2.69,13.00 Sp B2IV-V dist. 96.71 pc (315.47 l.y.)
 
 
Coord 2000
12372-6908
Discov num
DON 541
Comp
AB
Coord arcsec 2000
12 37 11.08 -69 08 07.9
Date first
1932
Date last
2007
Obs
5
Pa first
317
Pa last
321
P.A. Now (θ)
321°
Sep first
29.7
Sep last
28.8
Sep. Now (ρ)
28.8"
Mag pri
2.69
Mag sec
13.00
delta mag (ΔM)
10.31
Spectral class
B2IV-V (blue-white)
Pri motion ra
-040
Sec motion ra
-025
Pri motion dec
-013
Sec motion dec
-015
Notes
N (See Notes)
rPM=0.36
Nature of this double is uncertain.
 
 
12372-6908 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 251974 12372-6908 RIZ 4 Aa,Ab 2010 2010 0 0.0 2.80 5.50 2.70
Show Alp Mus 251974 12372-6908 DON 541 AB 1932 2007 5 321 28.8 2.69 13.00 10.31 <===
Show 251974 12372-6908 SHT 45 AC 2000 2000 1 198 4.9 3.40 11.90 8.50
Show 251974 12372-6908 SHT 45 AD 2000 2000 1 243 3.4 3.40 13.40 10.00
Show 251974 12372-6908 SHT 45 AE 2000 2000 1 159 5.8 3.40 15.40 12.00
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
321.4
Precise sep
28.8
Name
Alp Mus
Cdsa2 id
DON 541 AB
Constellation
Musca
SAO
251974
HIP
61585
Tycho2
9228-03049-1
HD
109668
HR
4798
GC
17179
CD
CD-68 1104
CP
CP-68 1702
Bayer
Alpha Muscae
Bayer name
Alp Mus
Ra deg
12.619744444444445
De deg
-69.13552777777778
Distance
96.71
Distance ly
315.47
last precise pa
321.4
last precise sep
28.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12372-6908 DON 541 AB 2007 4 321 28.8 2.69 13.00 B2IV-V N D 123711.08-690807.9

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