Articles Tagged with telescopes

Gaps in knowledge

Published on November 19, 2024November 15, 2024 by fivecolorssandt@icloud.com

High and low

We note some gaps in our expertise.

A guide for the universe

Published on January 3, 2023January 3, 2023 by fivecolorssandt@icloud.com

Too much to deal with

Do you need help to contemplate the universe?

Old-fashioned astronomers (I)

Published on March 15, 2022March 14, 2022 by fivecolorssandt@icloud.com

Arlo Landolt

The importance of calibration.

A small tool

Published on November 30, 2021November 30, 2021 by fivecolorssandt@icloud.com

One step beyond the eyes

We consider an anachronism.

Telescope economics

Published on June 29, 2021June 29, 2021 by fivecolorssandt@icloud.com

Precision low-tech

We consider whether to build or buy.

Proof and re-proof

Published on August 7, 2018August 5, 2018 by fivecolorssandt@icloud.com

Testing the theory again

General Relativity passes another test of its predictions. Why bother?

The Crescent Sun

Published on August 29, 2017August 28, 2017 by fivecolorssandt@icloud.com

Enjoying a partial eclipse

We didn’t make it to the path of totality last week. But we found that a partial eclipse can be just as enjoyable, for unexpected reasons.

Why an f-stop?

Published on July 26, 2016July 26, 2016 by fivecolorssandt@icloud.com

It’s all the astronomers’ fault

Our photographic consultant is reminded how complicated things are for beginners, no matter how straightforward it all seems to the professionals.