Delta Lyr
HIP 92728; Delta1 Lyr; 11 Lyr
HIP 92728; Delta1 Lyr; 11 Lyr
DoubleStar
Lyr
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
5.58
Spectral Type
B2.5V
Star Color
Blue-white
(B-V -0.15)
Position & Identifiers
RA
18h 53m 43.6s
Dec
+36° 58' 18.0"
Constellation
Lyr
HR
7131
HIP
92728
Bayer
Delta1
Flamsteed
11 Lyr
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Visibility
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Multiple Star System
Separation
175.3″
Companion Mag
9.9
Position Angle
20°
Star Colors
A: Blue-white
B: Yellow
Discoverer
H 6 3
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 175.3″ · PA: 20° · 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
88.352d, K 39.7k/s, V0 -17.2k/s, asini 44.8.
Survey Image
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