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AH Velorum — Variable Star in Vela

Observable Variable Star Excellent (60/100)

Range: 5.50 - 5.89, Period: 4.2d, Type: DCEPS

Magnitude 5.5–5.9m VariableStar Vela (Vel) Visible
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1Physical Properties

Magnitude 5.76
Range 5.50 - 5.89
Period 4.2 days
Variable Type Classical Cepheid (First Overtone)
Spectral Type F7Ib-II supergiant
Star Color Yellow (B-V 0.59)

2Position & Identifiers

RA 08h 11m 60.0s
Dec -46° 38' 39.0"
Constellation Vela (Vel)
HR 3232
HIP 40155
HD 68808
SAO 219587
Variable ID AH Vel

3How easy to follow?

Magnitude 5.5 – 5.9 mag Amplitude 0.4 mag Period 4.23 d Type DCEPS
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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye V. hard+ V. hard V. hard
50mm finder Hard+ Hard+ Hard+
150mm scope Hard+ Hard+ 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

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Best season Dec – Feb (peak: Jan)

5Survey Image

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6Light Curve

7Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

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8

Size Comparison

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9

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10

Spectral Classification

11

Hertzsprung-Russell Diagram

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12

Stellar Lifecycle

13

Blackbody Spectrum

14

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

15

Stellar Fusion

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16Stellar Notes

Cep 5.50 - 5.86V, 4.22717d. Per. and form of light curve vary.
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