Keid
HIP 19849; 40 Eri
HIP 19849; 40 Eri
DoubleStar
Eri
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.43
Spectral Type
K1-V
Star Color
Orange
(B-V 0.82)
Distance
15.6 ly
Position & Identifiers
RA
04h 15m 16.3s
Dec
-07° 39' 10.0"
Constellation
Eri
HR
1325
HIP
19849
Flamsteed
40 Eri
Variable ID
DY Eri
Double Cat
3093
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Visibility
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Multiple Star System
Components
5
Component IDs
AB
Separation
83.4″
Companion Mag
9.3
Companion Sp
M5V
Star Colors
A: Orange
B: Red
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
ADS 3093C; UV, min. 11.18V, +1.50 (B-V), 12.16 - 13.85U. X-ray source.
BC 9.51 A2, 11.18 M4Ve, 252.1y, a = 6.943". Component B is white dwarf. Component A, CPM.
0.199".
Keid; Kied.
Survey Image
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