R Hya
Showpiece (84/100)
HIP 65835
VariableStar
Hydra
(Hya)
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
4.97
Range
3.5 - 10.9
Period
359 days
Variable Type
Mira (Long-period Pulsating)
Spectral Type
M7IIIe
Star Color
Red
(B-V 1.60)
Position & Identifiers
RA
13h 29m 42.8s
Dec
-23° 16' 53.0"
Constellation
Hydra
(Hya)
HR
5080
HIP
65835
Variable ID
R Hya
Double Cat
8920
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Visibility
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Light Curve
Comparison Stars for R Hya (3.5–10.9)
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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 Fusion
Stellar Notes
ADS 8920A, M 3.5 - 10.9v, 388.87d. Period varies; was 500d beginning of 18th century. M8 at minimum. Discovered by | Montanari in 1670.
Hyades group.
Technetium star. SiO maser emission. Also classified M6e-M9e.
Survey Image
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