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Astronomy : Recent Questions and Answers (Page 11)

Find answers to your questions about Astronomy or help others by answering their Astronomy questions.

Problem regarding the absorption lines of the sun

Some of the wavelengths of light that are emitted from the sun will be absorbed by atoms in the outer layer of the sun and also the atmosphere of the...

Asked on 12/12/2020

2 answer

How much does the sky change in a few thousand years?

The "fixed stars" are not actually fixed, the earth's tilt changes over time etc., but all that happens slowly on human timescales. Imagine a Babylonian astronomer (or astrologist?) teleported to...

Asked on 09/28/2020 by Toffomat

4 answer

Has the inclination of the orbital plane of Phobos and Deimos followed that of Mars' axial tilt?

Phobos and Deimos are very close to Mars' equatorial plane (the inclination of their orbits is roughly 1°). The axial tilt of Mars has changed a lot over time, and...

Asked on 09/04/2020 by usernumber

0 answer

Why Comet C/2020 F3 Neowise returns even it's orbit is near- parabolic?

I have read in Wikipedia about Comet C/2020 F3 Neowise that it's orbit is near-parabolic. But in another section, it says that it is a non-periodic comet whlith orbital...

Asked on 08/19/2020 by Athul R T

2 answer

Are there ways to determine a star's spectral type without the spectrum itself?

Because of the lack of available data online, I am trying to find other ways to determine an exoplanet's host star's spectral type....

Asked on 07/28/2020 by Oop

1 answer

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