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Astronomy/Capturing Rainbow Images.


Dear Prof Courtney

Can we capture Rainbow Images using both a Telescope and a Digital Camera?


You can use a digital camera to photograph rainbows, but you should not use a telescope to do it. Rainbows cover a broad area, many times larger than the tiny field of view of a telescope. If you used a telescope to photograph the bow you would only see a tiny part of it, and that part would have only one color. So it wouldn't look like a rainbow at all.


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Courtney Seligman


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.


I have been a professor of astronomy for over 40 years, and am working on an online text/encyclopedia of astronomy, and an online catalog of NGC/IC objects.

Astronomical Journal, Publications of the Astronomical Society of the Pacific (too long ago to be really relevant, but you could search for Courtney Seligman on Google Scholar)

I received a BA in astronomy and physics and a MA in astronomy, both from UCLA. I was working on my doctoral dissertation when I started teaching, and discovered that I preferred teaching to research.

Awards and Honors
(too long ago to be relevant, but Phi Beta Kappa and Sigma Xi still keep trying to get me to become a paying member)

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