31 Leo
HIP 49637; 31 Leo
DoubleStar
Leo
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
4.37
Spectral Type
K3.5IIIbFe-1
Star Color
Red
(B-V 1.45)
Position & Identifiers
RA
10h 07m 54.3s
Dec
+09° 59' 51.0"
Constellation
Leo
HR
3980
HIP
49637
Flamsteed
31 Leo
Double Cat
7649
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Visibility
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Multiple Star System
Separation
8.2″
Companion Mag
13.6
Position Angle
41°
Star Colors
A: Red
Discoverer
GAN 5
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 8.2″ · PA: 41° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Hertzsprung-Russell Diagram
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Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Notes
CPM.
Occultation diam = 0.0028 - 0.0031".
Survey Image
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