I’m interested in images taken by people with all size telescopes.
in other words, you want to see other ppl’s pictures, not post ones of your own. this is not my idea of sharing.
there are many sites out there. try poking around cloudy nights for links and pictures.
Nebular theory: large cloud of gas and dust that collapses into a swirling disk, creates a massive star at the center and condensing planetesimals around it. Then, the planetesimals combine into planets.
As applied to galaxy: super-massive cloud of gas and dust collapses into a swirling disk with a massive object (black hole) at its center. Then, regions of gas and dust collect into countless smaller objects, which are still massive enough to form stars.
Seems to work, but my astronomy class didn’t/hasn’t really gone extensively over the formation of galaxies. What is current theory?
Thanks for your help!
You’re basically right.
But galaxy formation differs somewhat from star formation, in that the galaxy is mostly dark matter, and the dynamics of the dark matter dominate. The baryonic matter just "comes along for the ride" until it compresses and shocks.
There are two different scenarios for different masses of dark matter halos: adiabatic and isothermal. In smaller galaxies, the infalling gas tends to be isothermal, that is, it cools through radiation as it collapses. In bigger galaxies, the infalling gas heats adiabatically, which mitigates the collapse.
The black hole probably forms after the initial formation of the galaxy, and energy from the black hole likely feeds back and modifies the galaxy formation process.
Can someone offer any suggestions?
I have a MEADE reflector with a go-to mount. The only way I can power this motor is by way of batteries. It does not offer a 12v plug either. Batteries are fine, especially if they are “rechargeable” but after about 2 hours of mopping the skies, I run out of battery and there goes my night of observing.
What surgeries can I perform on this mount in order to incorporate an outside power source to keep this baby moving all night long?
I have sent several emails to MEADE for advice, but I guess all they care about is “a good sale” for I get no replies.
Let me know
Ricky C
If it’s a DS series, go to www.weasner.com/etx and try asking there. I’ve given up on rechargeables in telescopes, because they seem to degrade so soon like old cell phone batteries. I use normal heavy duty ones.
If everything exploded outward then how did the elements slow down and begin to change course? What would cause that?
Gravity.
As particles slammed into each other they began to stick. Slowly, over time, they formed larger particles with higher gravity. Eventually they formed celestial objects with enormous mass and gravity. Smaller objects were drawn near and, due to a combination of factors including gravity and intertia, were caught in orbit.
But just because we circle the sun doesn’t mean we’re not moving outward with the rest of the universe. Our solar system, our galaxy, all of it, is slowly receding from the center of the universe.
black world covering velvet of darkness and despair filled with tiny diamond shaped sparkling lights of hope and love…. (something like this? )
my roomate and i had an argument the other day. she claimed there has been discoveries on planets in our solarsystem, i dissagree
No…with a caveat. Some interesting mars rocks were found in which there appeared to be fossils consistent with earthlike eukaryotes, but there’s been debate about whether these were really that, or simply impressions in the rock created by organic compounds of some kind. so as of now, the answer is no, at least not living.
However, people are looking into one particular place, called Europa. It is a moon of Jupiter, and is believed to be covered with water ice, and possibly have liquid water beneath it. If there were any place in the solar system aside from Earth that life would exist, even in microscopic form, this would likely be it.
La chanson française, d’une promesse de l’amour.
Chanson: Tu Es Foutu
Artiste: In Grid
Tu m’as promis
Et je t’ai cru
Tu m’as promis le soleil en hiver et un arc-en-ciel
Tu m’as promis le sable doré; j’ai reçu une carte postale
Tu m’as promis le ciel, la terre, et une vie d’amour
Tu m’as promis ton cœur, ton sourire
Mais j’ai eu des grimaces
Tu m’as promis
Et je t’ai cru
Tu m’as promis le cheval ailé que j’ai jamais eu
Tu m’as promis le fil d’Ariane, mais tu l’as coupé
Tu m’as promis les notes de Mozart, pas des plats cassés
Tu m’as promis d’être ta reine;
J’ai eu pour sceptre un balai
Tu m’as promis
Et je t’ai cru
Tu es foutu-tu-tu…
Tu es foutu-tu-tu…
Je ne sais pas ce qui se passe
Mais je sais pourquoi on m’appelle
“Mademoiselle Pas de Chance”
Tu m’as promis, tu m’as promis
Tu m’as promis
Tu es foutu-tu-tu…
Tu es foutu-tu-tu…
ENGLISH TRANSLATION:
You promised me,
And I believed you.
You promised me the sun in the winter, and a rainbow in the sky.
You promised me the golden sands; I received a postcard.
You promised me the sky ,the earth, and a life of love.
You promised me your heart and you smile
But I only got frowns.
You promised me
And I believed you.
You promised me the winged horse that I never had.
You promised me the thread of Ariadne, but you cut that.
You promised me the notes of Mozart, not broken dishes.
You promised me that I would be your queen;
I had as a scepter a broom.
You promised me
And I believed you.
You are screwed-do-do-do-do-do…
You are screwed-do-do-do-do-do…
I don’t know what is happening,
But I know why people call me:
“Miss Luckless”
You promised me, you promised me
You promised me
You are screwed-do-do-do-do-do…
You are screwed-do-do-do-do-do…
Duration : 0:3:38
All 5 Parts of Hubble And Beyond – Telescope in Space
http://www.youtube.com/view_play_list?p=A5555EF116D45358
Original Air Date 2005 — We search the night sky wondering what lies out there but our telescopes could only take us so far. As far as the light of the universe has traveled to reach us its way is blocked in its finale mile by the blurring effect by our atmosphere. Astronomers realized to capture the pristine light of the universe they would need to put a telescope into outer space. For fifteen years the Hubble Space Telescope has been capturing breath taking images of Stars, Galaxies, Nebulas and more. But after fifteen years in space the light from the fabled telescope is now fading. The question before NASA and the public can Hubble be fixed by robots or will it take a daring rescue in space. Is Hubbles cosmic rein now coming to and end?
Duration : 0:9:0
Discover main extrasolar planet types, while enjoying artistic concepts based on the data available for them.
Duration : 0:8:47
100123 Starry Night Radio with guests ZE:A