Tau Ser
HIP 76878; Tau7 Ser; 22 Ser
HIP 76878; Tau7 Ser; 22 Ser
DoubleStar
Ser
Visible
Level 4
Large telescope (10"+) - Requires steady seeing
Physical Properties
Magnitude
5.81
Spectral Type
A2m
Star Color
Yellow-white
(B-V 0.20)
Distance
155.3 ly
Position & Identifiers
RA
15h 41m 54.7s
Dec
+18° 27' 50.0"
Constellation
Ser
HR
5845
HIP
76878
Bayer
Tau7
Flamsteed
22 Ser
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Visibility
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Multiple Star System
Separation
2.4″
Companion Mag
10.4
Position Angle
88°
Star Colors
A: Yellow-white
B: Orange
Discoverer
DRS 17
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 2.4″ · PA: 88° · N up, E left
Unresolved · 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.
Also classified A8Vams.
Survey Image
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