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Alpha Antliae — Star in Antlia

Magnitude 4.2m Star Antlia (Ant) Visible
Star Map
+ List + Plan

Observe

1Physical Properties

Magnitude 4.25
Spectral Type K4III giant
Star Color Red (B-V 1.45)
Distance 136 ly

2Position & Identifiers

RA 10h 27m 09.1s
Dec -31° 04' 04.0"
Constellation Antlia (Ant)
HR 4104
HIP 51172
HD 90610
SAO 201405
Bayer Alpha

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium+ Medium
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 Jan – Mar (peak: Feb)

5Survey Image

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7

Size Comparison

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8

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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

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15Stellar Notes

Hyades group.
16

Light Travel Time Machine

17

Relativistic Travel

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