HIP 99585
HIP 99585
DoubleStar
Aql
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
6.27
Spectral Type
B9pCrEu:Sr:
Star Color
White
(B-V 0.02)
Distance
362.4 ly
Position & Identifiers
RA
20h 12m 35.2s
Dec
+00° 52' 03.0"
Constellation
Aql
HR
7717
HIP
99585
Double Cat
13506
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Visibility
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Multiple Star System
Separation
2.6″
Companion Mag
7.1
Position Angle
205°
Star Colors
A: White
B: Yellow-white
Discoverer
STF2644
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.6″ · PA: 205° · N up, E left
At limit · 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
Discordance as to which component has the peculiar spectrum usually attributed to A. However, on the basis of better | spectrograms, Abt gives A = A0V, B = A0Vp(Sr,Cr st.,Ca wk.).
Survey Image
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