Phaet
HIP 26634; Alpha Col
HIP 26634; Alpha Col
DoubleStar
Col
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
2.64
Variable Type
Gamma Cassiopeiae (Eruptive Be Star)
Spectral Type
B9Ve
Star Color
Blue-white
(B-V -0.12)
Distance
261.1 ly
Position & Identifiers
RA
05h 39m 38.9s
Dec
-34° 04' 27.0"
Constellation
Col
HR
1956
HIP
26634
Bayer
Alpha
Querying VizieR catalog...
Visibility
Set a location in User Settings to see visibility data.
Multiple Star System
Separation
14.0″
Companion Mag
12.5
Position Angle
358°
Star Colors
A: Blue-white
Discoverer
HDO 193
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 14.0″ · PA: 358° · 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
Gamma Cas?, 2.62 - 2.66V. H alpha variable. Rapid variations in H beta profile.
Color excess E(B-V) = 0.00.
Expanding circumstellar shell.
Phaet; Phakt; Phact; Phad.
Survey Image
Loading survey image…