HIP 12990
Physical Properties
Magnitude
6.30
Spectral Type
A9V
Distance
251 ly
Position & Identifiers
RA
02h 47m 03.5s
Dec
+35° 33' 18.0"
Constellation
Perseus
(Per)
HR
820
HIP
12990
Double Cat
2117
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
0.9″
Companion Mag
8.6
Position Angle
217°
Discoverer
BU 9
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 0.9″ · PA: 217° · N up, E left
Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″
Size Comparison
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Stellar Lifecycle
Spectral Classification
Blackbody Spectrum
Stellar Absorption Spectrum
Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.
Stellar Fusion
Stellar Notes
AB binary.
Light Travel Time Machine
Relativistic Travel
Survey Image
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