yesterday night I worked at my H 2500 list.
In the constellation Coma I saw this nice pair NGC 4633/34.
The sky was hazy, later came fog.
About this circumstance the NGC 4633 showed only the core so the two sighted as a: cosmic !
At clear sky NGC 4633 is elongated as NGC 4634.
But generally in smaller scopes I think the observer
will see every time this : !
29.3.2014, 22:10 UT, Reinsehlen
12" Dobson f/5, V 160x with 9.4mm SW-Antares