42 LMi
Observable Double Star
Good (45/100)
Sep: 196.4", Companion: mag 7.8
HIP 52638; 42 LMi
DoubleStar
LMi
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.24
Spectral Type
A1Vn
Star Color
Blue-white
(B-V -0.06)
Position & Identifiers
RA
10h 45m 51.9s
Dec
+30° 40' 56.0"
Constellation
LMi
HR
4203
HIP
52638
Flamsteed
42 LMi
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Visibility
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Multiple Star System
Separation
196.4″
Companion Mag
7.8
Position Angle
174°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
S 612
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 196.4″ · PA: 174° · 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.
Survey Image
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