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HIP 77370

HIP 77370 DoubleStar Dra Visible Level 4 Large telescope (10"+) - Requires steady seeing
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Physical Properties

Magnitude 5.86
Spectral Type A3m
Star Color Yellow-white (B-V 0.25)
Distance 251 ly

Position & Identifiers

RA 15h 47m 38.0s
Dec +55° 22' 36.0"
Constellation Dra
HR 5887
HIP 77370
Double Cat 9793

Visibility

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Multiple Star System

Separation 2.3″
Companion Mag 9.5
Position Angle 129°
Star Colors A: Yellow-white B: Orange
Discoverer BU 946

Eyepiece View

80x Dawes: 1.9″ TFOV: 0.6°
Realistic = true angular size
N E 129° A (5.9) B (9.5)

Sep: 2.3″ · PA: 129° · 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 Fusion

Stellar Notes

Components white and orange-red.
Also classified A8IVams.

Survey Image

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