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TX Piscium — Variable Star in Pisces

19 Psc

Observable Variable Star Good (56/100)

Range: 4.8 - 5.2, Period: 224.0d, Type: LB

Carbon Star

Carbon star; one of the reddest naked-eye stars

Read: Carbon Stars — The Reddest Stars You'll Ever See
VariableStar Pisces (Psc) Visible
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1Physical Properties

Magnitude 5.04
Range 4.8 - 5.2
Period 224 days
Variable Type Slow Irregular Variable
Spectral Type C5II
Star Color Deep ruby red (B-V 2.60)

2Position & Identifiers

RA 23h 46m 23.5s
Dec +03° 29' 12.0"
Constellation Pisces (Psc)
HR 9004
HIP 117245
HD 223075
Flamsteed 19 Psc
Variable ID TX Psc

3How easy to follow?

Magnitude 4.8 – 5.2 mag Amplitude 0.4 mag Period 224 d Type LB
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Equipment Bortle 3 Bortle 4 Bortle 5
Naked eye Hard V. 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 Aug – Oct (peak: Sep)

5Light Curve

6Comparison Stars

Nearby stable stars for estimating brightness (AAVSO)

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7

Size Comparison

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8

Compare Stars

9

Spectral Classification

10

Hertzsprung-Russell Diagram

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11

Stellar Lifecycle

12

Blackbody Spectrum

13

Stellar Absorption Spectrum

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

14

Stellar Fusion

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15Stellar Notes

Lb 6.9 - 7.7p.
Carbon star; one of the reddest naked-eye stars
Gamma Leo group.
Technetium found in spectrum.
Occultation diam. = 0.0080 - 0.0102".

Survey Image

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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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