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Iota Persei — Star in Perseus

Magnitude 4.0m Star Perseus (Per) Visible
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Observe

1Physical Properties

Magnitude 4.05
Spectral Type G0V
Star Color Yellow (B-V 0.59)
Distance 39 ly

2Position & Identifiers

RA 03h 09m 04.0s
Dec +49° 36' 48.0"
Constellation Perseus (Per)
HR 937
HIP 14632
HD 19373
SAO 38597
Bayer Iota
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Easy 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 Oct – Dec (peak: Nov)

5Survey Image

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Explore

7

Size Comparison

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8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

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

Discover

15Stellar Notes

Mel 20 #44, but not cluster member; Per OB3.
16

Light Travel Time Machine

17

Relativistic Travel

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.

Alpha Persei Cluster
Easy
Open cluster
Open Cluster mag 1.2 2.5° Perseus
Mirfak
Alpha Per
Easy
Bright naked-eye star, mag 1.8
Star mag 1.79 2.5° Perseus
NGC 1175
Hard+
Bright spiral galaxy
Galaxy mag 12.8 7.3° Perseus
Algol
HIP 14576; Beta Persei; 26 Persei
Easy
Eclipsing binary, period 2.9d
Variable Star mag 2.12 8.7° Perseus
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