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Pi Serpentis — Star in Serpens

Magnitude 4.8m Star Serpens (Ser) Visible
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Observe

1Physical Properties

Magnitude 4.83
Spectral Type A3V
Star Color White (B-V 0.07)
Distance 272 ly

2Position & Identifiers

RA 16h 02m 17.7s
Dec +22° 48' 16.0"
Constellation Serpens (Ser)
HR 5972
HIP 78554
HD 143894
SAO 84155
Bayer Pi
Flamsteed 44 Ser

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 Apr – Jun (peak: May)

5Survey Image

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Explore

6

Size Comparison

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Compare Stars

8

Spectral Classification

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Hertzsprung-Russell Diagram

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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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14

Light Travel Time Machine

15

Relativistic Travel

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