99 Tau
HIP 23068; 99 Tau
DoubleStar
Tau
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.79
Spectral Type
gG8
Star Color
Orange
(B-V 1.11)
Position & Identifiers
RA
04h 57m 48.7s
Dec
+23° 56' 55.0"
Constellation
Tau
HR
1586
HIP
23068
Flamsteed
99 Tau
Double Cat
3557
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Visibility
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Multiple Star System
Components
3
Component IDs
AC
Separation
6.3″
Companion Mag
12.3
Position Angle
7°
Star Colors
A: Orange
Discoverer
BU 1045
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 6.3″ · PA: 7° · 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.
Survey Image
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