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Pi Hydri — Star in Hydrus

HIP 10418; Pi Hydri

Magnitude 5.5m Star Hydrus (Hyi) Visible
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Observe

1Physical Properties

Magnitude 5.55
Spectral Type M1III giant
Star Color Red (B-V 1.55)
Distance 251 ly

2Position & Identifiers

RA 02h 14m 14.7s
Dec -67° 50' 30.0"
Constellation Hydrus (Hyi)
HR 667
HIP 10418
HD 14141
SAO 248518
Bayer Pi

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Hard+ 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 Sep – Nov (peak: Oct)

5Survey Image

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Explore

6

Size Comparison

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Compare Stars

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

5.52 - 5.58V.
15

Light Travel Time Machine

16

Relativistic Travel

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