I voted, "Other". I assemble my lists to observe, bearing in mind the following:
1. Consideration of when particular constellations will be at culmination, month by month, and focusing on those constellations in selecting objects to observe
2. Studying lists of objects, whether they be Messier, Caldwell, Herschell, NGC, IC, Washington Double Star Catalogue etc, to identify objects which will be of interest, for the constellations at culmination at that time of year.
3. Identifying objects in Sky Atlas 2000 that capture my interest.
4. Revisiting objects which I have enjoyed observing in the past.
I keep a journal of my observing sessions. I use a chunky 1 page to a day Collins diary. That way, from year to year, I can look back at objects the previous year(s) at that time that I liked, and revisit them. It also means that I am constantly searching for new objects, rather than boring myself to sobs just looking at the same things all of the time.
In a typical observing session, I also try to spend some time naked eye observing. This has the benefit of improving my visual knowledge of the night sky, as well as enjoying seeing larger scale objects than I see through the narrow window of my telescope, esp the Milky Way itself, which never ceases to blow me away! It also allows my observing eye a chance to relax!
Happy observing
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