Pi Gem
HIP 38016; Pi Gem; 80 Gem
DoubleStar
Gem
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
5.14
Spectral Type
M1IIIa
Star Color
Red
(B-V 1.60)
Distance
271.8 ly
Position & Identifiers
RA
07h 47m 30.3s
Dec
+33° 24' 56.0"
Constellation
Gem
HR
3013
HIP
38016
Bayer
Pi
Flamsteed
80 Gem
Double Cat
6364
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
19.0″
Companion Mag
11.4
Position Angle
215°
Star Colors
A: Red
Discoverer
STF1135
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 19.0″ · PA: 215° · 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
C optical. Some disagreement as to which of B and C is the brighter.
Survey Image
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