How to find the distance between a planet and the sun?

The asteroid Ceres has a period of 4.6 Years. Assuming Ceres to be the center of the planet if it had formed, how far would the planet be from the Sun? Astronomical Units preferred.

There are several ways we can learn the distance to a planet, trigonometric parallax, lasers, radar etc but this question is asking about Kepler's third law: The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit. Call the period P and the semi major axis A (for the Earth) and p and a respectively for Ceres. P^2/A^3 = p^2/a^3 it's really that simple. Let's for simplicity express our period in years and mercifully the question wants the answer in astronical units so we express the semi major axis of the Earth in astronimical units which means both period and semi major axis are 1. 1^2/1^3 = 4.6^2/a^3 1 * a^3 = 4.6^2 a^3 = 4.6^2 a = cube root of (4.6 ^2) a = 2.8 astronomical units expressed to 2 sig figs.

How to get cosmographia and solar walk for free without having to do a survey?

I want to have cosmographia and solar walk for mac.I would like to know which websites have the dmg version of cosmographia and solar walk.10 points for those who can give me the dmg / promo codes of cosmographia and solar walk for mac.

Perhaps you might try asking this in a software forum - rather than the Astronomy forum...

How to built long distance camera attached plane?

Normally, remote control plane only could receive a short distance radio frequency. I have been wandering on how I could transform it into a satellite one, with cheap gadgets and tools available in marketplace. What sort of camera i should use?

Well, it's not cheap, but it's possible. The cameras are relatively cheap, however the transmitters that are small and light enough to broadcast the information is going to cost you. Your best bet is to contact an RC club in your area; odds are a member or two have already got a plane rigged, and can direct you on where to obtain the electronics.

How to get a dirct live view from satellite? There is a way to pay yearly subcription to get access from NASA?

Please needs your advise to support me. I need to view my hose live.

LOL!!!! Not only would it be insanely expensive to have a live feed from a satellite on your HOUSE 24/7!! - I bet it would also be nearly impossible unless you had your very own satellite in orbit. Dream on, buy a house alarm and a shotgun.

How to prove to my friend that the sun orbits around the center of Milky Way?

My stupid friend keep saying that the sun doesn't move at all. Technically, it is orbiting around the center of Milky Way and he said I'm the one who's ignorant. How can I prove that the sun orbits around the center of the Milky Way galaxy before I kill myeelf because of his stupidity?

Maybe you've seen pictures of the milky way taken in Australia or something, gorgeous pictures of a blotch of stars stretched across the sky? That is evidence there because it proves that we are looking into the center of the galactic plane from the side, and around us, which proves that we lie within the plane itself. Look up the picture. He must not be familiar with the scale of things in astronomy either. Every star that you can see in the sky is either a distance galaxy, or a star within the proximity of our galaxy. We are surrounded by stars because they, like us, are bound to the spiral milky way galaxy. We have proof of this because of the slight shifts of the stars in the constellations over time. In the future many constellations will be unrecognizable. I don't know, I suppose it's a fair thing not to believe, but it's not just a guess, it's a conclusion based on a century of careful observation.

How to calculate perihelion distance of unknown planet's orbit?

If the synodic period is 680 days and the greatest elongation is 65degrees. It is found that this planet has an elliptical orbit and it was at the aphelion of its orbit when the elongation of 65degrees was measured. **this planet is made up
please calculate the perihelion distance of unknown planet's orbit and explain the steps. THANKS

The greatest elongation of 65degrees is possible only if the planet has orbit inside Earth's orbit. Sin(65°) = 0.90630 AU = greatest elongation distance form Sun. Since it is the Aphelion distance, a(1+e) = 0.90630 AU. We hit a significant snag here. A planet with inner orbit than Earth should have period less than 365.25 days & not 680 days (synodal). All planetary orbits are elliptical, however small the eccentricity be (then for convenience, they are called circular orbits). Please note it.

How to set up a to scale model of the distances between planets of the Solar System on a football field?

I want to set up a model of the solar system having distances between the planets to scale. This will be on a football field 100 meters in length. So how do I make the distances between the planets to scale on a football field that's 100 meters. I was thinking ratios or proportions but I'm really not sure.

Sun is sitting in one goal, Pluto is 100 yards away. (we're still going to count pluto here :) Now we look up Pluto and find that he's 3670052070 miles away. He's our constant. Neptune is 2829691160 2829691160 / 3670052070 = .7710 Neptune is 77 meters away from the sun. Uranus is 1783950480 / 3670052070 = .4861 Uranus is 48.6 meters from the sun. etc. You can google up and divide the rest yourself. At the bleachers begin the Oort Cloud, and it runs out past the parking lot. :)

How to get started in astronomy?

When I was younger (5th grade-ish) I was really into astronomy and memorized a bunch on constellations and learned all about our planets, etc. It's been about 8 years and I've forgotten a lot of it.

How would I go about getting back into astronomy? Where is a good place to dive in at?

Read, watch astronomy and space related videos, take a class at your local community college. A really good book to get started - A decent, general purpose astronomy magazine - Online education - If there is one in your area, check out your local astronomy club or attend a star party -

How to determine distances by using apparent and absolute magnitudes?

Good day everyone,

After approximately 7 hours from now I have a final exam on Astronomy class and I`m confusing about how to determine distance by using apparent and absolute magnitudes?
Could you please explain that for me plus the meaning of both M and m by a basic explanation?

Thank you very much I really appreciate what you will offer of help to me.

The little m stands for apparent magnitude and is what the celestial object looks like in out night sky. The big M stands for absolute magnitude and is how bright it actually is at 10 parsecs. Now if an object has an apparent magnitude of -1 and an absolute magnitude of +8 you know that it gets dimmer if you are moving it to ten parsecs. Therefore it must be closer than a star that has a m of -1 and a M +4 because star 1 gets dimmer by 9 levels however star 2 only gets dimmer by 5 levels. This also works for stars getting brighter as you move it to 10 parsecs.

How to assemble Orion Spaceprobe 130ST EQ Reflector Telescope?

We received the telescope but no instructions. Hmm.
Please type the instructions down so we can print it out!
Thank you so much.

The source has links to the manual and videos showing how to assemble it.

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