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119 Tauri — Variable Star in Taurus

Observable Variable Star Good (56/100)

Range: 4.22 - 4.63, Period: 165.0d, Type: SRC

Magnitude 4.2–4.6m VariableStar Taurus (Tau) Visible
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1Physical Properties

Magnitude 4.38
Range 4.22 - 4.63
Variable Type Semi-Regular Variable (Supergiant)
Spectral Type M2Iab-Ib supergiant
Star Color Deep ruby red (B-V 2.07)
Distance 1,631 ly

2Position & Identifiers

RA 05h 32m 12.8s
Dec +18° 35' 40.0"
Constellation Taurus (Tau)
HR 1845
HIP 25945
HD 36389
SAO 94628
Flamsteed 119 Tau
Variable ID CE Tau

3How easy to follow?

Magnitude 4.2 – 4.6 mag Amplitude 0.4 mag Period 165 d Type SRC
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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Hard Hard V. hard+
50mm finder Hard+ Hard+ Hard+
150mm scope Hard+ Hard+ Hard+
Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

Out of reach for typical amateur telescopes, even at Bortle 3.

4Visibility

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Best season Nov – Jan (peak: Dec)

5Survey Image

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6Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

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8

Size Comparison

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10

Spectral Classification

11

Hertzsprung-Russell Diagram

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12

Stellar Lifecycle

13

Blackbody Spectrum

14

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

15

Stellar Fusion

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16Stellar Notes

SRc 6.1 - 6.5p, 165d.
Large infrared excess.
Ultraviolet FeII emission.
Diam. 0.0105".
17

Light Travel Time Machine

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Relativistic Travel

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