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R Hydrae

The bow shock around R Hya
The bow shock around R Hya [1]
R Hydrae, also known as R Hya[2], is a Mira-type variable star in the constellation Hydra.[3][2]

The magnitude of R Hydrae varies over a period of 389 days, between 3.21 and 11.00. The period of R Hydrae changes slowly.

At maximum brightness the star can be seen with the naked eye, while at minimum a telescope of at least 5 cm is needed.

R Hydrae is approximately 2000 light years from Earth. R Hydrae's spectral class is M7IIIe.[3]

References

External links

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Source: Wikipedia | The above article is available under the GNU FDL. | Edit this article



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