HIP 91707
HIP 91707
DoubleStar
Lyr
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
6.47
Spectral Type
B5V
Star Color
Blue-white
(B-V -0.13)
Position & Identifiers
RA
18h 42m 08.1s
Dec
+34° 44' 48.0"
Constellation
Lyr
HR
7033
HIP
91707
Double Cat
11593
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Visibility
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Multiple Star System
Components
4
Component IDs
AP
Separation
25.0″
Companion Mag
7.7
Position Angle
82°
Star Colors
A: Blue-white
Discoverer
STF2372
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 25.0″ · PA: 82° · 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
AB fixed, B at 25", 8.05V, -0.05(B-V), -0.25(U-B), B8V, vsini 150k/s. AP, measured sep. 0.145 on 1985.5 by speckle | interferometry.
ADS 11593A and B both SB?
Survey Image
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