Beta Ser
HIP 77233; Beta Ser; 28 Ser
DoubleStar
Ser
Visible
Level 3
Medium telescope (6-8") - Requires steady seeing
Physical Properties
Magnitude
3.67
Spectral Type
A1V
Star Color
White
(B-V 0.06)
Distance
155.1 ly
Position & Identifiers
RA
15h 46m 11.3s
Dec
+15° 25' 19.0"
Constellation
Ser
HR
5867
HIP
77233
Bayer
Beta
Flamsteed
28 Ser
Double Cat
9778
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Visibility
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Multiple Star System
Components
5
Component IDs
AB
Separation
30.3″
Companion Mag
10.0
Companion Sp
G0
Position Angle
264°
Star Colors
A: White
B: Yellow
Discoverer
STF1970
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 30.3″ · PA: 264° · 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
B, 9.72V, +0.84(B-V), +0.68(U-B), K3V, CPM. C, 10.7v at 201". Also CPM with BD+15d2906 at 1642", itself a double, 8.4, | 10.5v sep. 6".
Sirius group; member of Ursa cluster; UMa stream.
0.016".
ADS 9778B, +2.8k/s.
Survey Image
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