Arkab Prior
HIP 95241; Beta1 Sgr
Observable Double Star
Good (58/100)
Sep: 28.3", Companion: mag 7.2
HIP 95241; Beta1 Sgr
DoubleStar
Sgr
Visible
Level 2
Small telescope (4") - Requires steady seeing
Physical Properties
Magnitude
4.01
Spectral Type
B9V
Star Color
Blue-white
(B-V -0.10)
Position & Identifiers
RA
19h 22m 38.3s
Dec
-44° 27' 32.0"
Constellation
Sgr
HR
7337
HIP
95241
Bayer
Beta1
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Visibility
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Multiple Star System
Separation
28.3″
Companion Mag
7.2
Companion Sp
F0V
Position Angle
76°
Star Colors
A: Blue-white
B: Yellow-white
Discoverer
DUN 226
Eyepiece View
80x
Dawes: 1.9″
TFOV: 0.6°
Realistic = true angular size
Sep: 28.3″ · PA: 76° · 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
CPM. Companion A5V; vsini 129k/s, optical?
Arkab Prior; Arkab or Urkab with HR 7343.
Survey Image
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