Alpha Mus
HIP 61585; Alpha Mus
DoubleStar
Mus
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.69
Variable Type
Beta Cephei (Pulsating)
Spectral Type
B2.5V
Star Color
Blue
(B-V -0.20)
Distance
315.4 ly
Position & Identifiers
RA
12h 37m 11.0s
Dec
-69° 08' 08.0"
Constellation
Mus
HR
4798
HIP
61585
Bayer
Alpha
Variable ID
Alp Mus
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
28.8″
Companion Mag
13.0
Position Angle
321°
Star Colors
A: Blue
B: White
Discoverer
DON 541
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 28.8″ · PA: 321° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
Querying VizieR for stellar data…
Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
Loading HR diagram…
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
Beta C 2.68 - 2.73V, 2.17 - 2.24p, 0.0903d.
Companion B4V, optical.
Sco-Cen cluster; certain member of the Sco-Cen cluster; lower Cen group of Sco-Cen assoc.
Survey Image
Loading survey image…