75 Ori
HIP 29850; 75 Ori
DoubleStar
Ori
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.39
Spectral Type
A2V
Star Color
White
(B-V 0.10)
Distance
251 ly
Position & Identifiers
RA
06h 17m 06.6s
Dec
+09° 56' 33.0"
Constellation
Ori
HR
2247
HIP
29850
Flamsteed
75 Ori
Double Cat
4890
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Visibility
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Multiple Star System B,C: optical
Components
5
Component IDs
AP
Separation
62.9″
Companion Mag
11.8
Position Angle
263°
Star Colors
A: White
Discoverer
BU 96
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 62.9″ · PA: 263° · 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 Fusion
Stellar Notes
AP 6.1 A2IV, 9.0y, a = 0.109". B and C both 8.4v at 63" and 117", both optical. D, 11v at 5" from C. AP resolved | by speckle interferometry 1983.93, sep. 0.06". Aa resolved by speckle interferometry 1983.93, but unresolved 1983.94.
0.020".
Survey Image
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