Alya
HIP 92946; Theta1 Ser; 63 Ser
Observable Double Star
Excellent (72/100)
Sep: 22.4", Companion: mag 4.9
HIP 92946; Theta1 Ser; 63 Ser
DoubleStar
Ser
Visible
Level 1
Naked eye / Binoculars - Requires steady seeing
Physical Properties
Magnitude
4.62
Spectral Type
A5V
Star Color
Yellow-white
(B-V 0.17)
Distance
108.7 ly
Position & Identifiers
RA
18h 56m 13.2s
Dec
+04° 12' 13.0"
Constellation
Ser
HR
7141
HIP
92946
Bayer
Theta1
Flamsteed
63 Ser
Double Cat
11853
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Visibility
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Multiple Star System
Components
3
Component IDs
AB
Separation
22.4″
Companion Mag
4.9
Companion Sp
A5Vn
Position Angle
106°
Star Colors
A: Yellow-white
B: Yellow-white
Discoverer
STF2417
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 22.4″ · PA: 106° · 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
4.59 - 4.72V.
Binary with HR 7142.
Hyades group.
0.019".
Alya; Alga.
Survey Image
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