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Eta Microscopii — Star in Microscopium

Magnitude 5.5m Star Microscopium (Mic) Visible
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1Physical Properties

Magnitude 5.53
Spectral Type K3III giant
Star Color Red (B-V 1.35)

2Position & Identifiers

RA 21h 06m 25.5s
Dec -41° 23' 10.0"
Constellation Microscopium (Mic)
HR 8069
HIP 104177
HD 200702
SAO 230523
Bayer Eta

3How easy to spot?

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

5Survey Image

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Explore

6

Size Comparison

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Compare Stars

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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

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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