In globular star clusters, there are quite a few variable RR Lyrae stars, characterized by approximately the same luminosity
| September 15, 2020 | Education
In globular star clusters, there are quite a few variable RR Lyrae stars, characterized by approximately the same luminosity (about 100 solar luminosities). Can they be seen in a typical globular cluster of our Galaxy in a 20-cm telescope?
Their stellar magnitude will be about + 13.5 ^ m, in a 20-centimeter telescope they will be at the limit of visibility.
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