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Chi Pegasi — Star in Pegasus

Magnitude 4.8m Star Pegasus (Peg) Visible
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Observe

1Physical Properties

Magnitude 4.80
Spectral Type M2+III
Star Color Red (B-V 1.57)
Distance 217 ly

2Position & Identifiers

RA 00h 14m 36.2s
Dec +20° 12' 24.0"
Constellation Pegasus (Peg)
HR 45
HIP 1168
HD 1013
SAO 91792
Bayer Chi
Flamsteed 89 Peg

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Medium+ Medium 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 Aug – Oct (peak: Sep)

5Survey Image

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6

Size Comparison

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7

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8

Spectral Classification

9

Hertzsprung-Russell Diagram

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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

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14Stellar Notes

4.78 - 4.86V.
Ultraviolet FeII emission.
15

Light Travel Time Machine

16

Relativistic Travel

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