Astronomy/Experts

ExpertAverage RatingsExpertise

Paul Wagner

Available
Astronomy and telescope making. Have made at least seven telescopes, both refractors and reflectors, and have spent 30 years looking at the nighttime sky.

Harry Hayfield

U.K.
Available
Particular expert in eclipses (both solar and lunar), but able to answer most questions about astronomy or refer to a website that can help

Philip Stahl

U.S.
Available
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 pertaining to sunspot morphology and flare geo-effectiveness.

James Gort

On Vacation
returns 12/31/2016
Questions on observational astronomy, optics, and astrophysics. Specializing in the evolution of stars, variable stars, supernovae, neuton stars/pulsars, black holes, quasars, and cosmology.

Courtney Seligman

U.S.
On Vacation
returns 01/09/2017
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.

Recent Answers

2016-11-16 Supermoon time frames:

Actually, so-called supermoons occur all the time. All they are is full moons that happen when the Moon is near "perigee", the closest point in its orbit to the Earth. It is at that closest point every

2016-11-14 Telescopes:

Most "beginner" telescopes have a simple telescope design, but a not terribly useful or easy-to-use mount; so your unfortunate experience is not that uncommon.    There are some very small telescopes that

2016-10-18 Moon photograph:

Hello,    Bear in mind the full Moon sets when the Sun rises. This means your photo would need to be takn in the pre-dawn hours which precede the full Moon setting. (Refer to the diagram already sent)

2016-09-22 Moons role in earthquakes:

It appears that lunar tides can slightly increase the number of microquakes in the lower regions of deep fault zones (quakes measuring about 1.0 or less on the Richter scale); but despite many studies

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