HIP 91820
HIP 91820
DoubleStar
Lyr
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
6.45
Spectral Type
K5
Star Color
Red
(B-V 1.59)
Position & Identifiers
RA
18h 43m 16.7s
Dec
+39° 18' 01.0"
Constellation
Lyr
HR
7041
HIP
91820
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Visibility
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Multiple Star System
Separation
60.8″
Companion Mag
10.3
Position Angle
192°
Star Colors
A: Red
Discoverer
BLL 35
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 60.8″ · PA: 192° · 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.
Survey Image
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