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Astronomy/Experts

Expert	Average Ratings	Expertise
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 845	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.
Courtney Seligman U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.94 Clarity of Response 9.80 Timeliness 9.98 Politeness 10.0 Total Questions 271	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.
Philip Stahl U.S. Available View Profile Ask A Question View Past Answers	Rating N/A (Expert Not Accept Rating) Total Questions 1132	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.
Tom Whiting U.S. Available View Profile Ask A Question View Past Answers	Rating N/A (Expert Not Accept Rating) Total Questions 1404	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.
Harry Hayfield U.K. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.76 Clarity of Response 9.32 Timeliness 9.40 Politeness 9.60 Total Questions 504	Particular expert in eclipses (both solar and lunar), but able to answer most questions about astronomy or refer to a website that can help
Jesse Martinez U.S. Available View Profile Ask A Question View Past Answers	Knowledgeability 9.63 Clarity of Response 9.74 Timeliness 10.0 Politeness 9.84 Total Questions 61	General and specific questions about the solar system and stellar and galactic astronomy, 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 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, I would have to research it more than I would like. I would also like to answer questions that involve Astronomy with other sciences, chemistry, biology, physics, geology and mathematics as long as they are not PhD level.
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 1075	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.
Jayendra Upadhye India Available View Profile Ask A Question View Past Answers	Knowledgeability 9.84 Clarity of Response 9.73 Timeliness 9.88 Politeness 9.93 Total Questions 938	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.
Paul Wagner On Vacation returns 02/10/2010 View Profile View Past Answers	Knowledgeability 9.84 Clarity of Response 9.87 Timeliness 9.91 Politeness 9.98 Total Questions 668	Astronomy and telescope making. Have made at least seven telescopes, both refractors and reflectors, and have spent 30 years looking at the nighttime sky.

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Recent Answers

2010-02-05 stars:

What different planets are like depends upon the temperature in the region where they formed. The clouds are about 99% hydrogen and helium (and other) gases, and 1% microscopic bits of metal oxides

2010-02-01 Buying a telescope:

HI John It would really help to get an idea of budget... My first suggestion is a really good pair of binoculars. Those will show you lots of stuff in the sky, and are also a great way to learn

2010-01-31 Lookin for a good quality telescope at a good price for an amateur:

John, I live in the city, so I don't get to observe anything with a telescope nearly as often as I'd like. I don't feel prepared to answer your question. I recommend that you ask your question to Tom

2010-01-31 What planet is this?:

Hi John. Go to orion telescopes at: www.telescope.com Look for their XT-6 Classic Dobsonian or the XT-8 Classic Dobsonian. The two best scopes that money can buy for the amateur Astronomer

2010-01-29 near light speed:

Photons have energy, corresponding to their wavelength -- the longer the wavelength, the less the energy -- and momentum, corresponding to their energy (the higher their energy, the greater their momentum)