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HIP 31165 — Star in Columba

Magnitude 5.2m Star Columba (Col) Visible
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1Physical Properties

Magnitude 5.24
Spectral Type G8III giant
Star Color Orange (B-V 1.00)
Distance 204 ly

2Position & Identifiers

RA 06h 32m 21.3s
Dec -37° 41' 48.0"
Constellation Columba (Col)
HR 2399
HIP 31165
HD 46568
SAO 196917
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium Hard+ Hard
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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6

Size Comparison

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8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

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

13

Stellar Fusion

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14

Light Travel Time Machine

15

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.

NGC 2298
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 9.4 3.7° Puppis
NGC 2310
Medium
Edge-on galaxy
Galaxy mag 12.0 5.2° Puppis
HIP 30840
Hard+
Tight double — a rewarding split at 1.2″
Double Star mag 5.74 5.4° Canis Major
NGC 2243
Easy
Open cluster
Open Cluster mag 9.4 6.4° Canis Major
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