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Mu Andromedae — Star in Andromeda

Magnitude 3.9m Star Andromeda (And) Visible
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Observe

1Physical Properties

Magnitude 3.87
Spectral Type A6V
Star Color Yellow-white (B-V 0.13)
Distance 130 ly

2Position & Identifiers

RA 00h 56m 45.2s
Dec +38° 29' 58.0"
Constellation Andromeda (And)
HR 269
HIP 4436
HD 5448
SAO 54281
Bayer Mu
Flamsteed 37 And
Double Cat 788

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 Aug – Oct (peak: Sep)

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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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

All components optical.
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.

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