Nu Columbae — Double Star in Columba
HIP 26460; Nu Columbae
Observe
1Physical Properties
Magnitude
5.31
Spectral Type
F4V
Star Color
Yellow-white
(B-V 0.46)
Distance
69 ly
2Position & Identifiers
RA
05h 37m 44.6s
Dec
-28° 41' 22.0"
Constellation
Columba
(Col)
HR
1935
HIP
26460
HD
37495
SAO
170613
Bayer
Nu
Querying VizieR catalog...
3How easy to split?
Primary
5.3 mag
Companion
11.5 mag
Separation
0.7″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | V. hard | V. hard | V. hard |
| 150 mm Newton 150mm Newt. | V. hard | V. hard | V. hard |
| Celestron C8 (203 mm SCT) C8 203mm | V. hard | V. hard | V. hard |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Out of reach for typical amateur telescopes, even at Bortle 3.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Nov – Jan
(peak: Dec)
5Multiple Star System
Separation
0.7″
Companion Mag
11.5
Star Colors
A: Yellow-white
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 5.3 · B: 11.5 · Sep: 0.7″ · PA: ? · N up, E right
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
6
Size Comparison
Querying VizieR for stellar data…
7
Compare Stars
8
Spectral Classification
9
Hertzsprung-Russell Diagram
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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
Discover
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.
M79
NGC 1904
Globular cluster — dense ball of ancient stars
Globular Cluster
mag 7.7
5.2°
Lepus
NGC 1979
Elliptical galaxy
Galaxy
mag 13.0
5.4°
Lepus
S Lep
Semi-regular variable, range 6.0–7.6
Variable Star
mag 6.95
7.7°
Lepus
Gamma Cae
Easy double, sep 3.2″
Double Star
mag 4.55
9.8°
Caelum
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