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HIP 76243 — Star in Libra

Magnitude 5.2m Star Libra (Lib) Visible
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1Physical Properties

Magnitude 5.17
Spectral Type B6IV subgiant
Star Color Blue-white (B-V -0.09)

2Position & Identifiers

RA 15h 34m 26.6s
Dec -09° 11' 00.0"
Constellation Libra (Lib)
HR 5780
HIP 76243
HD 138764
SAO 140614

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 Apr – Jun (peak: May)

5Survey Image

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Explore

6

Size Comparison

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8

Spectral Classification

9

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

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14Stellar Notes

Sco-Cen cluster; Sco-Cen assoc.

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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