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Delta Columbae — Star in Columba

Magnitude 3.9m Star Columba (Col) Visible
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Observe

1Physical Properties

Magnitude 3.85
Spectral Type G7 II bright giant
Star Color Orange (B-V 0.88)
Distance 234 ly

2Position & Identifiers

RA 06h 22m 06.8s
Dec -33° 26' 11.0"
Constellation Columba (Col)
HR 2296
HIP 30277
HD 44762
SAO 196735
Bayer Delta
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Easy 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

15Stellar Notes

868.78d, K 10.6k/s, V0 -2.6k/s, asini 90.4.
IR source.
In Ursa cluster? Sirius group.
16

Light Travel Time Machine

17

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.

HIP 30840
Hard+
Tight double — a rewarding split at 1.2″
Double Star mag 5.74 1.7° Canis Major
NGC 2243
Easy
Open cluster
Open Cluster mag 9.4 2.7° Canis Major
NGC 2298
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 9.4 6.1° Puppis
NGC 2217
Easy
Bright spiral galaxy
Galaxy mag 10.4 6.2° Canis Major
Show on Map

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