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Ierofanga [76]
3 years ago
6

Besides parallax, how else can we determine the distances to stars

Biology
2 answers:
cupoosta [38]3 years ago
6 0

Answer:

There is no direct method currently available to measure the distance to stars farther than 400 light years from Earth, so astronomers instead use brightness measurements. It turns out that a star's color spectrum is a good indication of its actual brightness.

Explanation:

Soloha48 [4]3 years ago
6 0
The use of cepheid variables is your answer
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Biosecurity  is a measure which is taken in order to protect or prevent the population of existing species from infestation of harmful organisms and chemical substances. The hatchery should provide a closed environment in order to prevent the entry of harmful organism. Cleaning of the chamber where eggs were hatched with chemicals in order reduce the infestation of microorganism.

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