Upsilon Cnc

HIP 41816; Upsilon1 Cnc; 30 Cnc

HIP 41816; Upsilon1 Cnc; 30 Cnc DoubleStar Cnc Visible Level 6 Professional/Research - Requires steady seeing

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Physical Properties

Magnitude 5.75

Spectral Type F0IIIn

Star Color Yellow-white (B-V 0.28)

Position & Identifiers

RA 08h 31m 30.5s

Dec +24° 04' 52.0"

Constellation Cnc

HR 3355

HIP 41816

Bayer Upsilon1

Flamsteed 30 Cnc

Visibility

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Multiple Star System

Separation 0.1″

Companion Mag 6.5

Position Angle -1°

Star Colors A: Yellow-white

Discoverer OCC 135

Eyepiece View

Telescope Eyepiece

80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

Sep: 0.1″ · PA: -1° · 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.

Survey Image

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