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Astronomy/Experts

Expert	Average Ratings	Expertise
Jesse Martinez U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.50 Clarity of Response 10.0 Timeliness 10.0 Politeness 10.0 Total Questions 19	General and specific questions about solar system and galactic astronomy, cosmology, are what I can easily answer off the top of my head. For example, what is the largest planet in the solar system? How far away is the moon? Have there been any confirmed planets in orbit around stars other than the sun? How does relativity affect possible trips to the outer planets or others stars? How many stars are there? The tougher ones like explaining the big bang theory and black holes I will leave to the PhD’s. Even though I could muster an answer, but would have .....
Ed Available View Profile Ask A Question View Past Answers	Knowledgeability 9.86 Clarity of Response 9.90 Timeliness 9.78 Politeness 9.98 Total Questions 838	I am not a professional astronomer by any means, but astronomy has been an interest of mine since childhood, and I am well-informed on the subject. If unable to answer someone`s question personally, I will know how to quickly find the answer online, because I keep myself informed about developments in the field and I know where to look for information.
Steven LJ Russo Available View Profile Ask A Question View Past Answers	Knowledgeability 9.78 Clarity of Response 9.88 Timeliness 9.90 Politeness 9.94 Total Questions 1023	As a space science educator in a planetarium, my work centers around teaching people about the night sky and the solar system. I have a strong background in those areas, plus the history of NASA and spaceflight, and meteorology.
Tom Whiting U.S. Available View Profile Ask A Question View Past Answers	Rating N/A (Expert Not Accept Rating) Total Questions 1336	Astronomy has been my hobby/pasttime for over 50 years. Currently own 3 telescopes, the largest of which is a 30 inch Newtonian truss Dob that is portable.I taught Astronomy/Meteorology at the University Level for 13 years before retiring in 1995. Being retired and home most of the time, I am able to answer all questions relatively quickly, unless it's a new moon weekend with good observing conditions. No astrology questions please, or questions about alleged UFO picture identifications.
Philip Stahl U.S. Available View Profile Ask A Question View Past Answers	Rating N/A (Expert Not Accept Rating) Total Questions 1101	I have forty years of experience in Astronomy, specifically solar and space physics. My specialties include the physics of solar flares, sunspots, including their effects on Earth and statistics as applied to astronomical investigations.
Heather U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.65 Clarity of Response 9.71 Timeliness 9.94 Politeness 9.94 Total Questions 735	Amature astronomer, can answer most simple questions about planets, constellations, stars, galaxies and more. No Physics questions please
Jayendra Upadhye India Available View Profile Ask A Question View Past Answers	Knowledgeability 9.85 Clarity of Response 9.73 Timeliness 9.88 Politeness 9.93 Total Questions 924	1 - General questions on most astronomy topics such as:- Solar system, Cosmology, Black holes, Quasars, Dark matter etc. 2 - General questions about the geologies of planets. 3 - General questions about Orbits and laws governing them. 4 - General questions about rockets / spaceships 5 - General questions about stellar interiors and supernovas.
Harry Hayfield U.K. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.74 Clarity of Response 9.26 Timeliness 9.35 Politeness 9.57 Total Questions 489	Particular expert in eclipses (both solar and lunar), but able to answer most questions about astronomy or refer to a website that can help
Paul Wagner On Vacation returns 11/09/2009 View Profile View Past Answers	Knowledgeability 9.85 Clarity of Response 9.90 Timeliness 9.90 Politeness 9.98 Total Questions 645	Astronomy and telescope making. Have made at least seven telescopes, both refractors and reflectors, and have spent 30 years looking at the nighttime sky.
Courtney Seligman U.S. On Vacation returns 11/30/2009 View Profile View Past Answers	Rating N/A (Expert Not Accept Rating) Total Questions 236	I can answer almost any question about astronomy and related sciences (such as physics and geology). I will not answer questions about astrology and similar pseudo-scientific rubbish.

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Recent Answers

2009-11-07 the largest star:

Yes, to my knowledge, VY Canis Majoris is 2600 solar radii in diameter, making it the largest KNOWN star in the universe. I believe the second part of your question is true also. For YOUR brain to

2009-11-07 Kepler’s Law of Periods:

Hello, Actually - the mass of the Sun is 1.99 x 10^30 kg Anyway, we begin by setting the gravitational force of attraction equal to the centripetal force: where M denotes the Sun's mass, m is

2009-11-05 measuring the moon:

Hi Lindsey, If you are really interested in where the moon is located in the night sky from night to night (and this just isn't another 'homework' question)...get yourself a copy of Guy Ottewell's Astronomical

2009-11-03 Lunar rilles:

If such a thing had ever occurred, we should see immense cracks where things were put back together, or strange juxtapositions of very different terrains, as we do on Miranda (one of the moons of Uranus)

2009-11-03 Meade 290-C focuser:

HI Tom You might find this article interesting---it's about this type of scope, and what serious amateurs do to make them better. With about 40X, you can certainly see the rings of Saturn! http://www