45 Leo
Observable Variable Star
Good (52/100)
Range: 6.01 - 6.03, Period: 3.1d, Type: ACV
HIP 51213; 45 Leo
VariableStar
Leo
Visible
Level 3
Medium telescope (6-8") - Monitor brightness changes
Physical Properties
Magnitude
6.04
Range
6.01 - 6.03
Period
3.053 days
Variable Type
Alpha2 CVn (Magnetic Rotating)
Spectral Type
A0pSiCr:
Star Color
Blue-white
(B-V -0.06)
Position & Identifiers
RA
10h 27m 39.0s
Dec
+09° 45' 45.0"
Constellation
Leo
HR
4101
HIP
51213
Flamsteed
45 Leo
Variable ID
CX Leo
Double Cat
7781
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Visibility
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Light Curve
Comparison Stars for 45 Leo (6.0–6.2)
Nearby stable stars for estimating brightness (AAVSO)
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Multiple Star System
Components
3
Separation
37.8″
Companion Mag
12.4
Position Angle
132°
Star Colors
A: Blue-white
Discoverer
HJ 832
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 37.8″ · PA: 132° · 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
Alpha CV 5.97 - 6.15V, 7.897d. Magnetic var. 7.9d? and var. Sr, Cr.
Primary is occultation double, 6.7, 6.7v, sep. 0.02".
12,658.4d, K 11.0?k/s, V0 -7.8k/s, asini 1650.
Magnetic star. Also classified B8.5Vp.
Survey Image
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