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Astronomy Feedback

by Ron Kurtus

Readers have sent in a total of 305 comments and questions on Astronomy issues. They are listed according to date.

You can read them to further your understanding of the subject.



List of most recent 15 letters

Title

Topic

Country

Astronomy jobs General South Africa
 
Suggested resource Resources USA
 
Math needed for astrophysics studies General Pakistan
 
I don't understand Astronomy at all General Canada
 
Correcting number of Jupiter's moons Moon USA
 
Wants scholarship in Physics General USA
 
Can a graviton escape from a black hole? Black Holes India
 
Galaxy versus Galactic motion The Earth USA
 
Why are orbits elliptical? General Topics Nigeria
 
Astronomy comments General Bangladesh
 
Distinctive features unique to earth. The Earth USA
 
What are companions of planets called? Our Solar System USA
 
Wants permission to use image Keplers Laws USA
 
Want to study Astronomy General South Africa
 
Suggested resource Resources USA
 

Next 15 letters

 





General

Astronomy jobs

October 27, 2018

Question

In astronomy how long does it take to get that job and how many years in college

Lindiwe - South Africa (28768)

Answer

You can get some good information from the Astronomical Society of Southern Africa - Astronomy as a Career.

Also see Astronomer Job Descriptions.

Sometimes student internships are available. That is a good was to start.

Best wishes for success in your astronomy career.

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Resources

Suggested resource

August 3, 2018

Question

Hey !

I was poking around your site, reading all your great content, and I saw you had a resources page here: https://www.school-for-champions.com/astronomy/resources.htm

Believe it or not, I actually have a article on this exact subject which I think may be beneficial to your readers

as it provides lots of useful information and tips. Check it out: A Guide on Stargazing Looking Through Binoculars

https://binocularadvisor.com/looking-through-binoculars/

What do you think about adding me to your list?

Talk soon!
Jim

Jim - USA (28655)

Answer

Thanks for suggestion. I added links to your page from Astronomy Resources and Observations in Astronomy.

Best wishes for success in your work.

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General

Math needed for astrophysics studies

November 28, 2017

Question

hello dear sir,
I want to ask how much mathematics should i learn to understand astrophysics.

jawad - Pakistan (28336)

Answer

You need Calculus and Differential Equations. Both require a strong background in Algebra and Trigonometry.

Best wishes on becoming an Astrophysicist.

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General

I don't understand Astronomy at all

February 14, 2017

Question

I don't understand Astronomy at all. I don't enjoy studying about a whole new world that I've never visited. Is their an easy way to understand Triangulation, Radio telescopes?

Jawerriya - Canada (27880)

Answer

It can be interesting to look into the night sky and see all the numerous stars in the sky, as well as their movement throughout the year. Some people like to learn the constellations and arrangement of the stars.

However, Astronomy can delve deeper to find out what the planets and stars are made of. It is a scientific study that some people are interested in and others are not.

Triangulation is a method to determine distance using trigonometry. In Astronomy, it is useful to approximate distance of far-off objects.

A radio telescope uses radio waves instead of light ways to detect distant objects in space. In some situations, it works better than visible light.

Although teachers can often learning many facts without making the subject interesting, it is good to find things about the subject you like.

Best wishes for success in your studies.

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Moon

Correcting number of Jupiter's moons

January 24, 2017

Question

On your article about the Earth's Moon, you said the Earth has one Moon and Jupiter has 9 moons. This is incorrect, NASA has recently discovered that Jupiter has 67 moons! I believe the number is up to 67 now. Up until a few years ago, they knew it had at least 63 moons. Galileo discovered 4 of them in the early 1600s. I can only see 5 of them with my modern day, powerful telescope.

David - USA (27823)

Answer

Thanks for the information. I corrected the Characteristics of our Moon page as well as added material on Jupiter and Jupiter's 67 Moons.

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General

Wants scholarship in Physics

December 19, 2016

Question

how I get free scholarship by physics?

Minale - USA (27575)

Answer

Most high schools have lists of scholarships available. Your physics or astronomy teacher should also be able to provide help in getting a scholarship.

Some websites to check include:
SPS Scholarships
Scholarships for Physics Majors

Various colleges also have information on getting a scholarships.

Best wishes for your success in getting an education.

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Black Holes

Can a graviton escape from a black hole?

May 19, 2016

Question

Does graviton escape from the black holes? If no then why other celestial objects feels their gravity, if yes then how can graviton escape from the place from where even light cant escape?

Vinamra - India (27017)

Answer

A graviton is a hypothetical particle that is responsible for gravitational forces, as part of the quantum theory of gravitation. Since it is supposed to be the source of gravitational forces through an exchange between masses, it really would not be moving freely like in escaping from a Black Hole.

Other celestial object do feel the gravitational forces from a Black Hole, as witnessed by objects being drawn into the hole. But its forces are reduced as the square of the distance from the Black Hole.

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The Earth

Galaxy versus Galactic motion

May 1, 2016

Question

What is the difference between Galaxy and Galactic motion?

- USA (26973)

Answer

A galaxy is a system of stars and other materials that are bound together by gravitational forces. The Milky Way is an example of a galaxy.

Galaxies tend to rotate very slowly about some center area. They also move in space as compared to other galaxies.

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General Topics

Why are orbits elliptical?

February 27, 2016

Question

How does the obit the elliptic

Akin - Nigeria (26814)

Answer

The orbit of a planet around the Sun should be a circle, however there are gravitational forces from the other planets that distort the orbit into an elliptical shape.

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General

Astronomy comments

December 24, 2015

Question

Comments:

THE SUN MOVES ROUND THE EARTH

What is the Earth’s gravitational force?

Scientists Newton formula is Wrong

The sun is flat!

Moon is not Earth’s satellite

SUN IS NOT A PLANET

NOTE: The arguments have been deleted because they are too extensive to be published.

ROBIUL ISLAM - Bangladesh (26644)

Answer

No, the Sun does not move around the Earth. that has been proven many times.

The Earth’s gravitational force is approximately 9.8 m/s^2 times the mass of the object.

Newton's Third Law is correct. A force requires an opposite force.

The Sun is not flat. Your sources are inaccurate.

The Moon is Earth’s satellite. This is by definition.

It is true that our Sun is not a planet. It is a sun.

The starts do not move around the Sun. Your sources of information are incorrect.

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The Earth

Distinctive features unique to earth.

September 27, 2015

Question

What are 2 distinctive features unique to earth.

Plz get back to me soon.
Thank you

Sarah - USA (26409)

Answer

Features of the Earth that are unique with respect to the other planets in our Solar System include an atmosphere and temperatures that can support life (as well know it) and oceans consisting of water.

Some of the other planets have atmospheres of other gases and temperatures either too high or too low to support life. Some have oceans but not made up of water.

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Our Solar System

What are companions of planets called?

June 10, 2015

Question

The companions of planets are called

- USA (26082)

Answer

Companions of planets are called "moons" or "natural satellites".

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Keplers Laws

Wants permission to use image

January 19, 2015

Question

I am writing a book on Moon and space travel. The book is meant for promoting science learning among young adults. An Indian publisher has agreed to publish the book. I want to use the image from your article depicting Kepler's second law. Please give me your permission and tell me how would you like me to write credits.
Thank you
Ramesh Shishu, P.hD.

Ramesh - USA (25712)

Answer

Congratulations on writing your book.

Yes, you have permission to use the image. I would appreciate it if you would state: Permission from Ron Kurtus, School for Champions (www.school-for-champions.com/astronomy/keplers_laws.htm) or something to that effect.

Note that I have updated the image to improve its resolution. I you want, I can send you a higher resolution file as a JPEG that would be more appropriate for a print publication.

Best wishes for success with your book.

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General

Want to study Astronomy

January 5, 2015

Question

hai i wnt to du astronomyas well as to study in the field.but im little.bit suffrng in mAths frm thr whle year in grd11 0n 2015 bt now im dng grd 12 ths yer.so how cn i imprve

Sandile - South Africa (25688)

Answer

Astronomy is an interesting subject. It is good that you want to study it. See our lessons on Astronomy for some basic information.

Although maths are important in Astronomy, you can still learn much by studying the physical aspects of the subject.

You can get some good information from the Astronautical Society of Southern Africa, including information about scholarships. There are also branches in various South Africa cities.

Best wishes for success in your studies.

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Resources

Suggested resource

September 7, 2014

Question

Hi,

I’m a home school instructor and I took my kids to the Adler Planetarium a few weeks ago on a field trip. Our kids had fun learning about the solar system and the moon. I used this guide as a reference (http://bebusinessed.com/telescopes/) and I think it would make a good addition to your page here: http://www.school-for-champions.com/astronomy/resources.htm

I hope this was helpful.

Salutations!

Sandra - USA (25345)

Answer

Thanks for the resource I added the link to the Astronomy Resources page.

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