R Hor
Showpiece (78/100)
HIP 13502
VariableStar
Hor
Visible
Level 1
Naked eye / Binoculars - Monitor brightness changes
Physical Properties
Magnitude
4.00
Range
4.70 - 14.30
Period
405 days
Variable Type
Mira (Long-period Pulsating)
Spectral Type
M7IIIe
Star Color
Red
(B-V 2.11)
Distance
251 ly
Position & Identifiers
RA
02h 53m 52.9s
Dec
-49° 53' 25.0"
Constellation
Hor
HR
868
HIP
13502
Variable ID
R Hor
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Visibility
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Light Curve
Comparison Stars for R Hor (4.7–14.3)
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 Fusion
Stellar Notes
M 4.7 - 14.3v, 401.5d, JD2412800-28900; later 407.6d.
Colors correspond to 10.96V.
OH emission strong in infrared. SiO maser. Also classified M5e-M8eII-III.
Survey Image
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