27 Hya
Observable Double Star
Good (45/100)
Sep: 229.1", Companion: mag 7.0
HIP 45811; 27 Hya
DoubleStar
Hya
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.80
Spectral Type
G8III-IV+F5V
Star Color
Orange
(B-V 0.93)
Distance
148.2 ly
Position & Identifiers
RA
09h 20m 29.0s
Dec
-09° 33' 21.0"
Constellation
Hya
HR
3709
HIP
45811
Flamsteed
27 Hya
Double Cat
7311
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
229.1″
Companion Mag
7.0
Companion Sp
F4V
Position Angle
211°
Star Colors
A: Orange
B: Yellow-white
Discoverer
SHJ 105
Eyepiece View
32x
Dawes: 1.9″
TFOV: 1.6°
Realistic = true angular size
Sep: 229.1″ · PA: 211° · 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
AB CPM. BC, 6.87v F5V, 9.0v K2V, sep. 9", physical. B, 7.04V, +0.35(B-V), +0.03(U-B), vsini =<60k/s.
Survey Image
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