Helvetios
HIP 113357; 51 Peg
HIP 113357; 51 Peg
DoubleStar
Peg
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
5.49
Spectral Type
G2.5IVa
Star Color
Yellow
(B-V 0.67)
Distance
44.1 ly
Position & Identifiers
RA
22h 57m 27.9s
Dec
+20° 46' 08.0"
Constellation
Peg
HR
8729
HIP
113357
Flamsteed
51 Peg
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Visibility
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Multiple Star System
Separation
2.9″
Companion Mag
16.8
Position Angle
245°
Star Colors
A: Yellow
Discoverer
RBR 21
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.9″ · PA: 245° · 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
Also classified G5V.
Survey Image
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