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Astronomy Questions and Answers (Q&A)

What processes are involved in the sunspot cycle?
Moonshark
Answered: Apr 26, 2024
The winding of magnetic field lines due to variations in the Sun s rotation

1 Answer

411 views
What are the artificial visual pictures that people often make from star clusters called?
Orion thames
Answered: Apr 26, 2024
Constellations

1 Answer

404 views
What is the difference between a comet and an asteroid?
G. Horace, Content Developer
Answered: Oct 31, 2018
The main difference between asteroids and comets to each other are the components that make up these two heavenly bodies. Comets are normally made of dust, ice, and other rocky materials....Read More

2 Answers

401 views
What space object did some ancient cultures rely on to tell the passage of time?
Alfred Hook
Answered: Apr 26, 2024
Moon

1 Answer

399 views
What is the mass of the Moon?
O. Miller, Content Optimization Executive
Answered: Feb 07, 2019
The moon is a satellite on earth. The mass of the moon is 7.347 x 1022kg. The mass of the moon is only equivalent to 1.2 percent the mass of the Earth. However the moon appears large because it's...Read More

1 Answer

383 views
What do astronomers mean by the Big Bang?
John Smith
Answered: Apr 26, 2024
The event that marked the beginning of the expansion of the universe

1 Answer

379 views
What does 9.81 mean?
John Smith
Answered: Apr 26, 2024
B and C

1 Answer

346 views
What is the fate of an isolated brown dwarf?
Moonshark
Answered: Apr 26, 2024
It will remain a brown dwarf forever.

1 Answer

340 views
What observations characterize solar maximum?
Moonshark
Answered: Apr 26, 2024
We see many sunspots on the surface of the Sun.

1 Answer

338 views
What is the order of the planets in our solar system?
John Smith
Answered: Apr 26, 2024

The correct order is :

Mercury >Venus >Earth >Mars >Jupiter >Saturn >Uranus >Neptune >Pluto

3 Answers

330 views
Why is there an upper limit to the mass of a white dwarf?
Brentzel
Answered: Apr 26, 2024
Near 1.4 solar masses, the speeds of white dwarf s electrons approach the speed of light, so more mass cannot be added without breaking the white dwarf s degeneracy pressure

1 Answer

327 views
Why are we unlikely to find Earth-like planets around halo stars in the Galaxy?
Brentzel
Answered: Apr 26, 2024
Halo stars formed in an environment where there were few heavy elements to create rocky planets

1 Answer

322 views
What observational evidence supports the idea that Mercury once shrank by some 20 kilometers in radius?
Saii
Answered: Apr 26, 2024
The presence of many long, tall cliffs

1 Answer

314 views
What is the difference between Astronomy and Astrology?
Howard Reyes, Science Teacher
Answered: Jul 04, 2019
Astronomy is a branch of science that focuses on space and things in space. These things include stars, moons, planets, galaxies, and comets, to name a few. Many scientists who are interested in...Read More

1 Answer

313 views
How many more times is the atmospheric pressure in Jupiters core greater than the atmospheric pressure at Earths surface?
Moonshark
Answered: Apr 26, 2024
How many more times is the atmospheric pressure in Jupiter s core greater than the atmospheric pressure at Earth s surface? A) 10 thousand B) 100 thousand C) 1 million D) 10 million E) 100...Read More

1 Answer

309 views

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