Meissa
Lambda Ori (BS1879)
Observable Double Star
Excellent (64/100)
Sep: 4.1", Companion: mag 5.5
HIP 26207; Lambda Ori; 39 Ori
DoubleStar
Ori
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.54
Spectral Type
O8III((f))
Star Color
Blue
(B-V -0.18)
Distance
465.9 ly
Position & Identifiers
RA
05h 35m 08.3s
Dec
+09° 56' 03.0"
Constellation
Ori
HR
1879
HIP
26207
Bayer
Lambda
Flamsteed
39 Ori
Double Cat
4179
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Visibility
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Multiple Star System
Components
4
Component IDs
AB
Separation
4.1″
Companion Mag
5.5
Companion Sp
B0V
Position Angle
43°
Star Colors
A: Blue
B: Blue
Discoverer
STF 738
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 4.1″ · PA: 43° · 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
Uncertain which of HR 1879 or 1880 is the variable suspect.
A,B,C fixed. B is HR 1880. Colors for combined light. Blended mag., 3.39V. C is 11.2v at 29", optical; D, 11.2 | at 78".
Color excess E(B-V) = +0.12.
In cluster Collinder 69; exciting star of HII region S264; in Lambda Ori assoc. Lambda Ori and surroundings are at | same distance as Ori OB1 assoc. but are not members. Lambda Ori member surrounded by expanding HII region.
0.001".
Meissa; Heka.
Survey Image
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