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FH Muscae — Star in Musca

Magnitude 6.3m Star Musca (Mus) Visible
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1Physical Properties

Magnitude 6.26
Variable Type Ellipsoidal Variable
Spectral Type B8V
Star Color Blue-white (B-V -0.05)

2Position & Identifiers

RA 12h 39m 55.6s
Dec -66° 30' 42.0"
Constellation Musca (Mus)
HR 4814
HIP 61796
HD 110020
SAO 251987
Variable ID FH Mus
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Hard V. hard+ V. 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 Feb – Apr (peak: Mar)

5Survey Image

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6

Size Comparison

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7

Compare Stars

8

Spectral Classification

9

Hertzsprung-Russell Diagram

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

Ell? Amp. 0.025V, 0.58:d.

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.

Collinder 261
Easy
Open cluster
Open Cluster mag 9.0 1.9° Musca
Epsilon Mus
Hard+
Semi-regular variable, range 4.0–4.3
Variable Star mag 4.11 2.6° Musca
Theta Mus
Easy
Easy double, sep 5.2″
Double Star mag 5.51 3.1° Musca
Coalsack Nebula
Easy
Dark nebula — shows as a void against the Milky Way
Dark Nebula mag 12.0 3.6° Crux
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