18 Aql
HIP 93867; 18 Aql
DoubleStar
Aql
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.09
Spectral Type
B8III
Star Color
Blue-white
(B-V -0.07)
Distance
203.8 ly
Position & Identifiers
RA
19h 06m 58.6s
Dec
+11° 04' 17.0"
Constellation
Aql
HR
7248
HIP
93867
Flamsteed
18 Aql
Variable ID
Y Aql
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Visibility
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Multiple Star System
Separation
0.3″
Companion Mag
6.4
Position Angle
243°
Star Colors
A: Blue-white
B: White
Discoverer
HEI 568
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.3″ · PA: 243° · 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 Notes
E 5.02 - 5.06B, 1.30227d. Form of light curve possibly variable.
1.3023d, K 27.6k/s, V0 -18.7k/s, asini 0.494.
Possible Pleiades group.
Survey Image
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