Observe
1Physical Properties
Magnitude
4.86
Range
4.81 - 4.86
Period
37.2 hours
Variable Type
Slowly Pulsating B Star
Spectral Type
B3IV
Star Color
Blue
(B-V -0.17)
2Position & Identifiers
RA
08h 42m 25.5s
Dec
-53° 06' 50.0"
Constellation
Vela
(Vel)
HR
3467
HIP
42726
HD
74560
Variable ID
HY Vel
Querying VizieR catalog...
3How easy to split?
Primary
4.9 mag
Companion
5.5 mag
Separation
76.3″
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| 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
Dec – Feb
(peak: Jan)
5Light Curve
6Multiple Star System Quadruple
Components
4 (quadruple)
Component IDs
AB
Separation
76.3″
Companion Mag
5.5
Companion Sp
B8s
Position Angle
311°
Star Colors
A: Blue
B: Blue-white
See HR 3466.
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
A: 4.9 · B: 5.5 · Sep: 76.3″ · PA: 311° · N up, E left
Resolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Explore
7
Size Comparison
Querying VizieR for stellar data…
8
Compare Stars
9
Spectral Classification
10
Hertzsprung-Russell Diagram
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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
Amp. 0.015b, 0.0284d.
Sco-Cen assoc.; IC 2391 #34, probable member of cluster. See HR 2702.
Survey Image
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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.
Omicron Velorum Cluster
IC 2391
Open cluster
Open Cluster
mag 2.5
0.3°
Vela
V376 Car
Easy double, sep 40.1″
Double Star
mag 4.92
6.4°
Carina
Gamma Vel
HIP 39953; Gamma1 Velorum
Easy double, sep 60.9″
Double Star
mag 4.27
7.8°
Vela
V Pup
Eclipsing binary, period 1.5d
Variable Star
mag 4.41
7.9°
Puppis
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