Rho Ari
HIP 13654; Rho2 Ari; 45 Ari
Observable Variable Star
Good (51/100)
Range: 5.45 - 6.01, Period: 56.5d, Type: SRB
HIP 13654; Rho2 Ari; 45 Ari
VariableStar
Ari
Visible
Level 2
Small telescope (4") - Monitor brightness changes
Physical Properties
Magnitude
5.91
Range
5.45 - 6.01
Period
56.500 days
Variable Type
Semi-Regular Variable (Late-type Giant)
Spectral Type
M6-III:
Star Color
Red
(B-V 1.47)
Distance
233.0 ly
Position & Identifiers
RA
02h 55m 48.5s
Dec
+18° 19' 54.0"
Constellation
Ari
HR
867
HIP
13654
Bayer
Rho2
Flamsteed
45 Ari
Variable ID
RZ Ari
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Visibility
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Light Curve
Comparison Stars for Rho Ari (5.6–6.0)
Nearby stable stars for estimating brightness (AAVSO)
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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
SRb 5.62 - 6.01V, 30d.
Rho1 Fl 44, Rho2 Fl 45, Rho3 Fl 46 Ari are, respectively, HD 18091 (6.93v, A3), HR 867 and 869. HR 869 is | also called simply Rho Ari.
Occultation diam. = 0.0095 - 0.012".
Survey Image
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