The constellation Hydra has at least 70 stars. However, only 2 of those stars have apparent magnitudes brighter than 3 (the lower the number, the brighter).How many stars are in the constellation hydra?Hydra is the largest modern constellation, at 1303 square degrees. Despite its size, Hydra contains only one reasonably bright star, Alphard (伪 Hya, 30 Hya), which is of apparent magnitude 1.98.
R Hydrae is a Mira variable star that ranges in magnitude between 3.5, when it is easily visible to the naked eye, to 10.9, when a telescope is required to see it.
There are several double stars of interest in Hydra. Epsilon Hydrae (蔚 Hya) is a binary star with components of magnitudes 3.3 and 6.8, separated by 2.7 arcseconds. N Hydrae (N Hya) is a pair of stars of magnitudes 5.8 and 5.9. Struve 1270 (危1270) consists of a pair of stars, magnitudes 6.4 and 7.4.
The constellation also contains the radio source Hydra A.How many stars are in the constellation hydra?This is going to sound like a cop-out, but it depends on what you're seeing them with. With your naked-eye, you may see a few dozen stars. With a long exposure camera, you may record hundreds or thousands. With a large telescope, you could probably see millions.
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