49 Leo
Good (52/100)
HIP 51802; 49 Leo
DoubleStar
Leo
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.67
Range
5.66 - 5.75
Period
2.4 days
Variable Type
Eclipsing Binary (Algol-type)
Spectral Type
A2V
Star Color
White
(B-V 0.05)
Distance
652 ly
Position & Identifiers
RA
10h 35m 02.2s
Dec
+08° 39' 01.0"
Constellation
Leo
HR
4148
HIP
51802
Flamsteed
49 Leo
Variable ID
TX Leo
Double Cat
7837
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Visibility
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Light Curve
Multiple Star System
Components
3
Separation
2.1″
Companion Mag
7.9
Position Angle
155°
Star Colors
A: White
B: Yellow-white
Discoverer
STF1450
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.1″ · PA: 155° · N up, E left
Unresolved · 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 Fusion
Stellar Notes
ADS 7837A, EA 5.66 - 5.75V, 2.4450566d.
A is SB. Visual companion 8.5v at 2.4"; CPM.
5.8, 7.8v, sep. 0.0005", 2.4451d, K 62.6k/s, V0 +16.7k/s, asini 2.10.
Survey Image
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