Psi Crt

HIP 54742; Psi Crt DoubleStar Crt Visible Level 5 Expert level - Requires steady seeing

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Physical Properties

Magnitude 6.13

Spectral Type A0V

Star Color Blue-white (B-V -0.01)

Position & Identifiers

RA 11h 12m 30.4s

Dec -18° 30' 00.0"

Constellation Crt

HR 4347

HIP 54742

Bayer Psi

Double Cat 8086

Visibility

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Multiple Star System

Separation 0.2″

Companion Mag 8.3

Position Angle 312°

Star Colors A: Blue-white B: Yellow-white

Discoverer BU 220

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.2″ · PA: 312° · 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

Double Star

6.7 B9V, 7.1 A1V, 233.0y, a = 0.383". Astrometric binary. Combined mag., colors.

Survey Image

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