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HIP 116399 — Star in Tucana

Magnitude 7.4m Star Tucana (Tuc) Visible
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1Physical Properties

Magnitude 7.40
Spectral Type F2IV-V subgiant

2Position & Identifiers

RA 23h 35m 12.7s
Dec -64° 41' 22.0"
Constellation Tucana (Tuc)
HR 8945
HIP 116399
HD 221740
SAO 255520
SIMBAD

3How easy to spot?

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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye V. hard V. hard Imp.
50mm finder Easy Easy Medium+
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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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

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.

NGC 7633
Hard+
Bright spiral galaxy
Galaxy mag 12.67 3.2° Indus
Beta Tuc
HIP 2484; Beta1 Tucanae
Easy
Easy double, sep 27.1″
Double Star mag 4.37 6.4° Tucana
Nu Tuc
Medium
Semi-regular variable, range 4.7–5.2
Variable Star mag 4.81 7.5° Tucana
NGC 121
Medium+
Compact globular cluster
Globular Cluster mag 10.6 8.3° Tucana
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