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29 Orionis — Star in Orion

Magnitude 4.1m Star Orion (Ori) Visible
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+ List + Plan

Observe

1Physical Properties

Magnitude 4.14
Spectral Type G8IIIFe-0.5 giant
Star Color Orange (B-V 0.96)
Distance 297 ly

2Position & Identifiers

RA 05h 23m 56.8s
Dec -07° 48' 29.0"
Constellation Orion (Ori)
HR 1784
HIP 25247
HD 35369
SAO 132067
Flamsteed 29 Ori
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium+ Medium
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season Nov – Jan (peak: Dec)

5Survey Image

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7

Size Comparison

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8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

14

Stellar Fusion

Discover

15

Light Travel Time Machine

16

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

Upsilon Ori
Easy
Hot blue O-type star
Star mag 4.62 2.0° Orion
Rigel
HIP 24436; Beta Orionis; 19 Orionis
Easy
Bright naked-eye star, mag 0.1
Star mag 0.12 2.4° Orion
NGC 1999
Medium
Reflection nebula around a bright star
Reflection Nebula mag 9.50 3.3° Orion
NGC 1980
Medium+
Emission nebula — try an OIII filter
Emission Nebula mag 2.50 3.4° Orion
NGC 1888
Hard+
Barred spiral galaxy
Galaxy mag 12.0 3.7° Lepus
Theta Ori
HIP 26221; Theta1 Orionis; 41 Orionis
Easy
Hot blue O-type star
Star mag 5.13 3.7° Orion
Show on Map

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