learnig to observe

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Mark McCarthy

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Apr 8, 2026, 11:47:28 AMApr 8
to Sf-bay-tac


This is in reply to Muriel's recent observing report where she asked for resources to learn how to write observations.  I couldn't attach a file to the thread so starting a new one:

Hi Muriel,

While I appreciate everyone's comments about taking time at the eyepiece, writing what you wish -- these are very important -- I don't think these address your need.  I had the same questions when I started observing, which is how to coherently describe what I was seeing -- so that I could both better see what I was looking at and communicate it to others.  Like you Steve's notes are an excellent model, but I felt a guide was needed.

After researching various guides (the Astronomical League's were the best) I made an excel spreadsheet (attached) which gave be a quick reference as to what I should look for and the basics of what I should describe.  The first tab is a summary or checklist of what to look for, what questions to ask while observing.  I printed this out and kept it taped near my focuser to refer to, and still keep a copy in my notebook log.  It's a good reminder when I start to feel tired.  

The other tabs are the detail from where the summary is taken, such as the standard Shapely-Sawyer classification for globular clusters.  I also have a page for calculating the eyepiece characteristics in different scopes (just change the formula elements).

I found knowing how / what to observe made me a better observer and enhanced the pleasure of the hobby.

BTW I very highly recommend going through the Astronomical Leagues programs.  Sure, they're lists, but the requirements to get the certificates force you to hone your observing skills.

Best
Mark 

questions and eyepiece mags.xlsx

Rod Brown

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Apr 8, 2026, 5:08:59 PMApr 8
to The Astronomy Connection (TAC)
Very useful, thanks for sharing.
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