Astronomy

In the studying of geocentric cosmology which celestial bodies are considered planets, which are not, and why?

Thanks

KryssTal Reply: In geocentric cosmology, the planets are the moving objects as opposed to the fixed stars. They consist of the sun, moon and traditional five "naked eye" planets (Mercury, Venus, Mars, Jupiter, Saturn). The Greek word planet means "wanderer".

Hi:

My name is Jacob and I am interested in doing a science fair project on planet x or the 10th planet. I have been searching the internet for info but have not been able to find much. Can you tell me where I might go to find current info about planet x? Thank you.

KryssTal Reply: Hello there

Planet X has yet to be discovered.

Hello,

I like your site particularly the We Are Stardust page. So I was wondering if you would mind if I put a link on my links page to your site. My site is at:-

for your perusal.

It gets very hot indeed in suns, black holes and big bangs. :)

KryssTal Reply: Your site is excellent. I would be honoured with a link. I think you may need to change your background graphic as it really slows the loading and that might scare away impatient surfers!

I'll put a link to your site from my astronomy and science page.

Hello,

I found site while I was looking for an estimation of the total number of atoms in the universe. Do you know it ?

KryssTal Reply: We can only estimate:

The number of galaxies: 10¹²
The number of stars in each galaxy: 10¹¹
The mass of an average star: 2 × 10³⁰ kg
Number of atoms in 1kg: 6 × 10²⁶

The number of atoms in the Universe will be the product of the above numbers:

Hope this is useful

jonge jonge wat hebben we het druk..... hoezo, hoeveel korrels er op het laatste vakje van het schaakbord liggen.....

KryssTal Thoughts: ?

Hi there,

My dad sent me some information from your website about what planets were currently visible, etc..... and your e-mail address was at the bottom. But, the website address wasn't listed on there and he can't seem to remember how he got there. Could you send me the address? The information is fantastic and I'd really like to read more! :-)

Julia

KryssTal Reply: Thank you for your kind comments. [Go to ] my main astronomy page. From there you can link to all the other pages including the monthly planets page (which I will be updating in a few days for next month).

Hey, your another one that says the Sun has born. Give me a break. For your information the Sun does not sleep. the Sun is a 24 hours burning star.

We born ! after a very good Nigth Sleep, Not The Sun Star.

KryssTal Reply:

your => tuo
you're = you are => tu eres

I did mean "born" as in "began to shine 5 thousand million years ago" rather than born each day.

no nacaba cada dia, nacio una vez hace 5,000,000,000 anos.

We born = we are born / we were born.

Is there some type of eclips suspose to happen some time in the next week or so? I've heard we are to experence a midnight sun of some sort?

KryssTal Reply: The next eclipse is in January [2000] - it will be an eclipse of the Moon. If you log in to my Monthly Sky site early next January, you will find details of all the month's activities as seen from the northern hemisphere.

The presence of the midnight sun depends on your latitude. If you are further north than 66 degrees (unlikely in Ohio) you would get the midnight sun each summer.

For more eclipse information try Fred Espenak's excellent site on

Hello Kryss!

I just enjoyed reading your article on stars.

In my opinion it is very well written, but if I may offer a suggestion it would be to elaborate on how the elements above iron are created. Since the real "target" of the article is stardust, it seems appropriate to include and explanation of how the heavier elements are created.

Again, great article. It is a nice source for someone to obtain a concise yet lucid explanation of this amazing discovery about our existence.

KryssTal Reply: Thank you very much for your kind comments.

I am always looking to improve and add to my site. Recently I have been working on the language and football sections but I will eventually get round to the astronomical essays.

Excellent site! I enjoyed it immensely.

KryssTal Reply: Thank you