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HIP 89605 — Star in Telescopium

Magnitude 5.3m Star Telescopium (Tel) Visible
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1Physical Properties

Magnitude 5.33
Range 5.32 - 5.39
Variable Type BE
Spectral Type B3IIIep bright giant
Star Color Blue-white (B-V -0.05)

2Position & Identifiers

RA 18h 17m 07.5s
Dec -56° 01' 24.0"
Constellation Telescopium (Tel)
HR 6819
HIP 89605
HD 167128
SAO 245369
Variable ID Var?
SIMBAD

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 May – Jul (peak: Jun)

5Survey Image

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6

Size Comparison

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7

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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

5.29 - 5.37V, correlated with H alpha emission.
Sco-Cen assoc.
Shell star.

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 6584
Easy
Globular cluster — dense ball of ancient stars
Globular Cluster mag 9.2 3.8° Telescopium
V539 Ara
Medium
Eclipsing binary, period 3.2d
Variable Star mag 5.92 4.5° Ara
Xi Pav
Medium
Easy double, sep 3.7″
Double Star mag 4.36 5.5° Pavo
IC 4797
Medium+
Elliptical galaxy
Galaxy mag 11.3 5.9° Telescopium
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