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HIP 50103 — Star in Antlia

Magnitude 5.9m Star Antlia (Ant) Visible
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Observe

1Physical Properties

Magnitude 5.90
Spectral Type K1III giant
Star Color Red (B-V 1.21)

2Position & Identifiers

RA 10h 13m 45.9s
Dec -40° 20' 45.0"
Constellation Antlia (Ant)
HR 4015
HIP 50103
HD 88809
SAO 221877
SIMBAD

3How easy to spot?

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

5Survey Image

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6

Size Comparison

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Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map
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

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.

Eight Burst Nebula
NGC 3132
Easy
Small bright planetary nebula
Planetary Nebula mag 8.0 1.3° Vela
NGC 3250
Medium+
Elliptical galaxy
Galaxy mag 11.0 2.5° Antlia
U Ant
Easy
Deep red carbon star
Star mag 5.38 4.2° Antlia
C79
NGC 3201
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 6.8 6.1° Vela
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