Theta And

HIP 1366; Theta And; 24 And DoubleStar And Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 4.61

Spectral Type A2V

Star Color White (B-V 0.06)

Distance 148.2 ly

Position & Identifiers

RA 00h 17m 05.5s

Dec +38° 40' 54.0"

Constellation And

HR 63

HIP 1366

Bayer Theta

Flamsteed 24 And

Visibility

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Multiple Star System

Separation 0.1″

Position Angle 135°

Star Colors A: White

Discoverer CHR 123

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.1″ · PA: 135° · N up, E left

Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 3.1″

Size Comparison

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Stellar Lifecycle

Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

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

Stellar Notes

Group/Cluster

Possible Eggen group with V = +5k/s. Other members: HR 118, 378, 1046, 1706, 2375, 2572, 3131, 3894, 4564, 5482, 5843, | 6153, 6250, 6355, 6446, 7102, 7124, 7340, 8709.

Survey Image

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