Sigma Ser
Observable Double Star
Excellent (62/100)
Sep: 43.0", Companion: mag 7.8
HIP 80179; Sigma Ser; 50 Ser
DoubleStar
Ser
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.82
Spectral Type
F0V
Star Color
Yellow-white
(B-V 0.34)
Distance
75.8 ly
Position & Identifiers
RA
16h 22m 04.4s
Dec
+01° 01' 45.0"
Constellation
Ser
HR
6093
HIP
80179
Bayer
Sigma
Flamsteed
50 Ser
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Visibility
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Multiple Star System
Separation
43.0″
Companion Mag
7.8
Companion Sp
M2V
Position Angle
132°
Star Colors
A: Yellow-white
B: Red
Discoverer
LUH 11
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 43.0″ · PA: 132° · 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
Hyades group.
Survey Image
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