HIP 20498
HIP 20498
DoubleStar
Per
Visible
Level 5
Expert level - Requires steady seeing
Physical Properties
Magnitude
6.23
Spectral Type
A1pSi
Star Color
White
(B-V 0.00)
Distance
1630.8 ly
Position & Identifiers
RA
04h 23m 35.9s
Dec
+42° 25' 41.0"
Constellation
Per
HR
1371
HIP
20498
Double Cat
3172
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Visibility
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Multiple Star System
Separation
0.3″
Companion Mag
8.4
Position Angle
139°
Star Colors
A: White
B: Yellow-white
Discoverer
STT 80
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.3″ · PA: 139° · 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.
Survey Image
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