How to find the primary and secondary semi major axis of eclipsing binaries?

If a star is located at a right ascension of 15 and declination of - 13.00º, your latitude is 26.00ºN, and 15 hours of right ascension is currently on the meridian, what is the distance, in degrees, between the star and zenith?

What rain contains more acid than normal

And igneous rock sample is about 250,000 years old. Would you use uranium-lead radiometric dating to find its age?

In the early 1600s when Galileo used a telescope to study the moon, which features did he observe

A group or chain of islands is called

One characteristic of mass wasting processes is that they Select one: a. move materials very slowly. b. move materials relatively short distances compared to streams. c. only operate on steep slopes. d.

What happened at bull run

What is the speed of a vehicle that travels 20 meters in 5 second

While people have the right to protest issues, such as police brutality and gun law reform, they also have the legal obligation to protest Question 1 options: peacefully only during the daytime only in the presence of law enforcement with a complete

Describe 4 methods that scientists use to predict volcanic eruptions