13081-6518 RMK  16AB (The Mus)

 
 
13h 08m 07.15s -65 18' 21.6" P.A. 189 sep 5.5 mag 5.65,7.55 Sp B0Ia+WC5: dist. 3846.15 pc (12546.14 l.y.)
 
 
Coord 2000
13081-6518
Discov num
RMK  16
Comp
AB
Coord arcsec 2000
13 08 07.15 -65 18 21.6
Date first
1826
Date last
2016
Obs
31
Pa first
191
Pa last
189
P.A. Now (θ)
189°
Sep first
3.3
Sep last
5.5
Sep. Now (ρ)
5.5"
Mag pri
5.65
Mag sec
7.55
delta mag (ΔM)
1.9
Spectral class
B0Ia+WC5: (blue-white/Wolf-Rayet)
Pri motion ra
-005
Sec motion ra
-005
Pri motion dec
-002
Sec motion dec
-002
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
13081-6518 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 252162 13081-6518 CHR 247 Aa,Ab 1996 2015 11 142 0.0 5.90 6.60 0.70
Show The Mus 252162 13081-6518 RMK 16 AB 1826 2016 31 189 5.5 5.65 7.55 1.90 <===
Show 252162 13081-6518 SNA 30 BC 2012 2012 1 207 3.5 7.14 12.59 5.45
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189
Precise sep
5.5
Name
The Mus
Constellation
Musca
SAO
252162
HIP
64094
Tycho2
8997-02337-1
HD
113904
HR
4952
GC
17788
CD
CD-64 699
CP
CP-64 2183
Bayer
Theta Muscae
Bayer name
The Mus
Distance
3846.15
Distance ly
12546.14
last precise pa
189
last precise sep
5.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
13081-6518 RMK 16 AB 2007 29 187 5.4 5.65 7.55 B0Ia+WC5: N D 130807.16-651821.7
13081-6518 RMK 16 AB 2012 30 176 5.8 5.65 7.55 B0Ia WC5: N D 130807.16-651821.7
13081-6518 RMK 16 AB 2016 31 189 5.5 5.65 7.55 B0Ia+WC5: N 130807.15-651821.6

If you need more information about this double, apply for a data request form to the WDS.