Astronomy/Experts

ExpertAverage RatingsExpertise

Harry Hayfield

U.K.
Available
  • Knowledgeability 9.64
  • Clarity of Response 9.48
  • Politeness 9.76
  • Response Time(hr) 30.3
  •  --Last 90 Days(hr) 33.7
  • Total Questions 648
 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

Available
  • Knowledgeability 9.86
  • Clarity of Response 9.83
  • Politeness 9.97
  • Response Time(hr) 7.6
  •  --Last 90 Days(hr) 6.3
  • Total Questions 831
 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.
Available
  • Knowledgeability 9.97
  • Clarity of Response 9.86
  • Politeness 10.0
  • Response Time(hr) 4.3
  •  --Last 90 Days(hr) 8.4
  • Total Questions 625
 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.

Tom Whiting

U.S.
Available
  • Rating N/A
  • (This expert does not accept ratings)   
  • Response Time(hr) 5.8
  •  --Last 90 Days(hr) 4.3
  • Total Questions 1718
 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.

Patrick Weiler

U.S.
Available
  • Knowledgeability 9.84
  • Clarity of Response 9.79
  • Politeness 9.95
  • Response Time(hr) 11.5
  •  --Last 90 Days(hr) 42.3
  • Total Questions 1011
 I`d be pleased to answer questions about any aspect of astronomy, particularly those related to cosmology, astrophysics, and planetary sciences. I can also provide reliable information on unique topics like dark energy, dark matter, black holes, etc.,.

Philip Stahl

U.S.
On Vacation
returns 06/10/2013
  • Rating N/A
  • (This expert does not accept ratings)   
  • Response Time(hr) 11.1
  •  --Last 90 Days(hr) 13.9
  • Total Questions 1379
 I have more than 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.

Recent Answers

2013-05-21 Black Holes:

Hi Anne,  Well technically, no one really knows (and probably never will- see last 3 sentences of this paragraph)...  what happens when a human (or spacecraft or any other matter) passes through the "Event

2013-05-21 stars:

Exactly the same number of years as its distance in light years. So, for example, if we see a star supernova in a galaxy four million light years away, we are seeing what actually happened four million

2013-05-21 Constellation Perspective:

They would look completely different. If we moved through space, at first very distant stars might appear to remain in their same relative positions, but many of the brighter stars are relatively close

2013-05-20 Astronomy:

Hi Breanna,  Stars and sun are the same... so here's the data on the sun:  Mostly about 2/3 hydrogen and 1/3 helium with a trace amount of most of the other elements.   But this is NOT your normal hydrogen

2013-05-17 Milky Way:

Hi Amanda    You can do this kind of research on-line--you don't need me to do it. Here is a link to the Wikipedia page that gives you everything you could want to know about the Milky Way--including how

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