IM Vel

HIP 47145 DoubleStar Vel Visible Level 4 Large telescope (10"+) - Requires steady seeing

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Physical Properties

Magnitude 6.17

Spectral Type ApSrEuCr

Star Color Yellow-white (B-V 0.27)

Distance 155.3 ly

Position & Identifiers

RA 09h 36m 25.3s

Dec -48° 45' 05.0"

Constellation Vel

HR 3831

HIP 47145

Variable ID IM Vel

Visibility

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Multiple Star System

Separation 3.2″

Companion Mag 10.3

Position Angle 191°

Star Colors A: Yellow-white B: Orange

Discoverer R 125

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 3.2″ · PA: 191° · N up, E left

Resolved · 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

Variable Star

Amp. 0.05V, 2.8519d. Also pulsations of 11.67 min.

Spectral

Also classified A7pSr.

Radial Velocity

Detailed analysis by Kurtz and Marang (1988, MNRAS, 231, 1039) gives rotational frequency of 4.05829 microHz (2.85196d).

Survey Image

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