HIP 62894 — Double Star in Crux
Observe
1Physical Properties
Magnitude
5.76
Spectral Type
B9Ia
supergiant
Star Color
Yellow-white
(B-V 0.33)
2Position & Identifiers
RA
12h 53m 21.8s
Dec
-60° 19' 43.0"
Constellation
Crux
(Cru)
HR
4887
HIP
62894
HD
111904
SAO
252069
Querying VizieR catalog...
3How easy to split?
Primary
5.8 mag
Companion
10.2 mag
Separation
11.9″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Medium+ | Medium | Hard+ |
| 150 mm Newton 150mm Newt. | Easy | Medium+ | Medium+ |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
4Visibility
Set a location in User Settings to see visibility data.
Best season
Feb – Apr
(peak: Mar)
5Multiple Star System
Separation
11.9″
Companion Mag
10.2
Star Colors
A: Yellow-white
B: Orange
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 5.8 · B: 10.2 · Sep: 11.9″ · PA: ? · N up, E right
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
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6
Size Comparison
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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
14Stellar Notes
In cluster NGC 4755 #1; Cen OB1.
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.
Jewel Box
NGC 4755
Rich open cluster
Open Cluster
mag 4.2
0.0°
Crux
Becrux
HIP 62434; Beta Crucis
Hot blue O-type star
Star
mag 1.25
1.0°
Crux
S Cru
Pulsating variable, period 4.7d
Variable Star
mag 6.58
1.9°
Crux
Coalsack Nebula
Dark nebula — shows as a void against the Milky Way
Dark Nebula
mag 12.0
2.8°
Crux
Mu Cru
Mu Cru (BS4898)
Easy double, sep 34.5″
Double Star
mag 4.03
3.2°
Crux
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