CaptainHawk1

Well Sattelites, normally move because their in orbit, don't they? This thing was stationary for an hour (or more, maybe... I went to bed) and as far as the lasers are concerned, this was quite a distance in the position in the sky from the moon (about 3 moons away at the 11 o'clock position.) -Shawn

So I'm taking the trash out to the curb at approximately 0225 PDT (Las Vegas) and I look up at the moon and I see the weirdest flickering object at about the 11 o'clock position (if the moon were a dial on a clock). It's flickering like white and what looks like red and all things considering, looks like it's a pretty goos size object. What the heck is that thing??? -Shawn

Actually, it's not my homework. It was a part of a test I found online not connected to my course but that shared a lot of the same questions (google the questions exactly as written and you'll find the test). Originally it had 75 questions and I've been able to answer all of the questions (57 of them, if you're not keeping score) that were the same as the ones in my course. I'm simply using this test as a study guide and I work backwards; that is, I like to have the answer and then find the reason why afterwards. I frankly don't have time to screw around (I'm taking 18 credit hours and I have 3 legal briefs and a take home midterm due within the next week and I'm working full-time on top of that) and I was just hoping for this information for my own personal development (to have a head start). For the record, I'm not struggling with any of it. I've got the highest grade in the class and the curve has been set twice based upon my exam scores. I'm not an 18 year old kid, and as much as I appreciate the response, I don't need a lecture from anyone but my parents or my wife. Thanks again and I apologize for any misunderstanding.

Hi! I'm new here (obviously) and I'm taking an astronomy course because I needed another science course for my degree and I could use some help. I'm going to throw some questions out here and if you folks would be so kind as to answer them it would be greatly appreciated. 1. Radial motion can be revealed by spectroscopic analysis using the: A) the Doppler Effect. D) the Photoelectric Effect. B) Stefan's Law. E) Gravitational Redshift. C) Newtonian Relativity. 2. The particles which enter into chemical reactions are the atom's: A) neutrons. D) positrons. B) electrons. E) protons. C) mesons. 3. What is the resolving power of the telescope? A) the ability to make distant objects appear closer B) the ability to distinguish adjacent objects in the sky C) the ability to separate light into its component colors D) the ability to collect a lot of light E) the ability to detect very faint objects 4. Which of these does NOT happen when light enters a glass lens? A) Photons of different energies are focused at one common focus. B) The direction of the light ray is changed. C) Some of the light is reflected off the front surface of the lens. D) Some of the light is absorbed. E) The photons of different energies are slowed down to different speeds. 5. The amount of diffraction depends upon: A) the design of the telescope. B) the magnification of the eyepiece. C) the types of glass used in the achromat. D) the wavelength and the diameter of the telescope objective. E) the transparency of the atmosphere. 6. By what mechanism does solar energy reach the Sun's photosphere from the layer just underneath it? A) conduction D) radiation B) differentiation E) convection C) ionization 7. Why couldn't you stand on the Sun's surface? A) The Sun has no surface at all...the photosphere is an illusion. B) The Sun doesn't have a solid surface. C) The Sun's surface is too highly magnetized for anything to survive there. D) You could stand on the surface. E) You could stand on it, if a sufficiently protective spacesuit could be designed. 8. The pattern of rising hot gas cells all over the photosphere is called: A) granulation. D) convective projections. B) sunspots. E) prominences. C) filaments. 9. The critical temperature to initiate the proton-proton cycle in the cores of stars is: A) 100 million K D) 2,300,000 K B) 5,800 K E) 3,000 K C) 10 million K 10. How many planet Earths could fit inside the Sun? A) about a thousand D) almost ten million B) close to a billion E) a little over a million C) 110 11. The visible waves carrying the most energy appear to the human eye as: A) green. B) blue. C) orange D) violet. E) red. 12. Which of these forms of EM radiation is typical of sources millions of degrees hot? A) ultraviolet D) infrared B) radio E) visible light C) X-rays 13. Refractor telescopes suffer from this separation of light into its component colors. A) limited diffraction D) refraction. B) spherical aberration E) bad seeing C) chromatic aberration 14. What are two advantages of large scopes over smaller ones? A) Large scopes are easier to mount and control than small ones. B) Large scopes have a larger field of view and sharper focus. C) Large telescopes give higher magnification and are easier to build. D) Large telescope have more light grasp and better resolution. E) Large scopes are not subject to atmospheric turbulence and opacity like smaller ones. 15. The convex secondary mirror in this design focuses light down through a hole cut in the concave primary mirror. A) refractor D) interferometer B) Newtonian reflector E) Cassegrain reflector C) prime focus reflector 16. The density of the Sun is similar to which object? A) the Earth D) Jupiter B) Mercury E) the Moon C) Halley's Comet's nucleus 17. Geosynchronous satellites orbit at about four earth radii, where the earth's gravitational pull is: A) 1 g. B) 1/4 g. C) 1/16 g. D) 1/2 g. E) 2 g. 18. Loops of glowing hydrogen seen hanging over the solar limb during totality are: A) halos. D) solar rainbows. B) filaments. E) prominences. C) flares. Thanks again. -Shawn