Showing posts with label astrophotography. Show all posts
Showing posts with label astrophotography. Show all posts
Tuesday, December 31, 2024

Astrophotography Session

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 My instrument was an Astro-Tech 115 mm apochromatic triplet (extremely low disperson glass) on a Celestron AVX mount and tripod. The ocular...
Monday, December 30, 2024

Solar Imaging

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 We are approaching a sunspot maximum for 2024/2025 and already are above statistically likely events.  Images with Explore Scientific 102mm...
Friday, March 17, 2023

What Color is the Orion Nebula?

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On the Cloudy Nights discussion board, the question of the nominally “true” color of Messier 42 as well as many other nebulae and stars has ...
Tuesday, November 8, 2022

Lunar Eclipse 8 November 2022

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This was the last total Lunar eclipse until 14 March 2025. I got out early and took my time. Other snapshots have gone better.  These were t...
Monday, March 28, 2022

Recent Astronomical Observing

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We bought this home in part for its larger backyard and better views of the sky. Nominally, we are still under Bortle 7-8 conditions with th...
Sunday, October 10, 2021

Moon-Venus-Antares Conjunction

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 Astronomers Without Borders asked us to take snapshots of the sunset event.  1949 hours Central US (UZ-5.5) 30d 10m N 97d 48m W iPhone 11 (...
Wednesday, July 14, 2021

Observing With NASA: An Open Platform for Citizen Science

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Messier 51:  The Whirlpool taken 28 June 2021 Processed 9 July 2021 I have no problem with failure. I do not like failing, but I am not afra...
Monday, May 31, 2021

Parallax: The Race to Measure the Cosmos

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The writing is direct, intended for the interested and educated general reader.  I learned a lot, of course, though I did have some quibbles...
Saturday, April 17, 2021

Amateur Astrophotography is Baloney

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“Are visual observers a dying breed?” is a topic on The Sky Searchers discussion board. It does not refer to the book  The Last Stargazers  ...
Wednesday, November 25, 2020

Assign a Number to it, said Lord Kelvin

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“When you can measure what you are speaking about,  and express it in numbers,  you know something about it;  but when you cannot measure it...