Upsilon Gem

HIP 36962; Upsilon Gem; 69 Gem DoubleStar Gem Visible Level 3 Medium telescope (6-8") - Requires steady seeing

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Physical Properties

Magnitude 4.06

Spectral Type M0III-IIIb

Star Color Red (B-V 1.54)

Distance 233.0 ly

Position & Identifiers

RA 07h 35m 55.3s

Dec +26° 53' 45.0"

Constellation Gem

HR 2905

HIP 36962

Bayer Upsilon

Flamsteed 69 Gem

Visibility

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Multiple Star System

Separation 55.2″

Companion Mag 13.2

Position Angle 40°

Star Colors A: Red

Discoverer BUP 103

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 55.2″ · PA: 40° · 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

Group/Cluster

Wolf 630 group.

Spectral

Ultraviolet FeII emission.

Survey Image

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