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Epsilon Arae — Star in Ara

HIP 83431; Epsilon2 Arae

Magnitude 5.3m Star Ara Visible
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1Physical Properties

Magnitude 5.29
Spectral Type F6V
Star Color Yellow (B-V 0.48)
Distance 84 ly

2Position & Identifiers

RA 17h 03m 08.8s
Dec -53° 14' 13.0"
Constellation Ara
HR 6314
HIP 83431
HD 153580
SAO 244388
Bayer Epsilon2

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium Hard+ Hard
50mm finder Easy Easy Easy
150mm scope Easy Easy Easy
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season May – Jul (peak: Jun)

5Survey Image

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Size Comparison

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Spectral Classification

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Hertzsprung-Russell Diagram

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Stellar Lifecycle

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Blackbody Spectrum

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Stellar Absorption Spectrum

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Relativistic Travel

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