HIP 60851 — Double Star in Crux
Observe
1Physical Properties
Magnitude
6.04
Spectral Type
A0Vn
Star Color
Blue-white
(B-V 0.02)
2Position & Identifiers
RA
12h 28m 18.9s
Dec
-64° 20' 29.0"
Constellation
Crux
(Cru)
HR
4744
HIP
60851
HD
108501
SAO
251920
Querying VizieR catalog...
3How easy to split?
Primary
6.0 mag
Companion
11.0 mag
Separation
2.0″
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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
To reach "Medium" at Bortle 3, you'd need at least a 380 mm reflector.
4Visibility
Set a location in User Settings to see visibility data.
Best season
Feb – Apr
(peak: Mar)
5Multiple Star System
Separation
2.0″
Companion Mag
11.0
Position Angle
44°
Star Colors
A: Blue-white
B: Orange
Discoverer
KOU 9
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 6.0 · B: 11.0 · Sep: 2.0″ · PA: 44° · N up, E right
At limit · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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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
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 4463
Open cluster
Open Cluster
mag 7.2
0.5°
Musca
Acrux
HIP 60718; Alpha1 Crucis
Easy double, sep 3.5″
Double Star
mag 1.33
1.3°
Crux
Coalsack Nebula
Dark nebula — shows as a void against the Milky Way
Dark Nebula
mag 12.0
2.5°
Crux
Epsilon Mus
Semi-regular variable, range 4.0–4.3
Variable Star
mag 4.11
3.8°
Musca
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