HIP 17797
Observable Double Star
Excellent (68/100)
Sep: 8.2", Companion: mag 5.2
HIP 17797
DoubleStar
Eri
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.73
Spectral Type
B9V
Star Color
Blue-white
(B-V -0.03)
Distance
135.9 ly
Position & Identifiers
RA
03h 48m 35.9s
Dec
-37° 37' 14.0"
Constellation
Eri
HR
1190
HIP
17797
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Visibility
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Multiple Star System
Separation
8.2″
Companion Mag
5.2
Companion Sp
A1V
Position Angle
216°
Star Colors
A: Blue-white
B: White
Discoverer
DUN 16
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 8.2″ · PA: 216° · 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
Binary with HR 1189.
0.032".
Survey Image
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