The application supports two approaches to object selection. The easier way is to turn on the Star Chart object layers (NgcIc/SAC, PGC) and
The second approach is to look through several databases for objects to be observed using various filters (Object Selection ), prepare observation list and get its objects on Star Chart automatically.
You could use each approach separately or combine them. For separate use turn off object layers and fill the current observation list, or vice versa turn on object layers and clear current observation list.
For combination both turn on object layers and fill the current observation list. To distinguish observation list objects from layer objects you could show labels for the first, but not for the second, and/or dim layer objects.
Star Chart shows stars and objects from the selected layers and ALL objects from the current observation list. For each FOV and layer you could adjust limiting magnitude to raise/diminish the number of stars/objects that you see on the screen2.
Star Chart is highly customisable, there are many options in Star Chart Settings that help you adjust it to your needs.
By default, Star Chart depicts preinstalled Digitized Sky Survey (DSS) images and their contours. They are not objects in a usual sense, rather consider them belonging to DSS image layer. To download DSS image of any object/sky portion select an object or a star and go to Menu/DSS. Remove DSS image or download image of adjacent area with two long touches on existing image/adjacent area.
Also select your geographic location, observation time range and sky conditions. Return back and press Update button. Here you are with a list of objects. Sort them by name, constellation, type, magnitude or dimension.
Press on the object to see its location on Star Chart. Mark objects you want to add to observation list3, long tap on the list and select Add marked to observation list to add object(s) to the current observation list (and they become visible on Star Chart).
Download DSS images for all objects in the current observation list via Menu/DSS to see them on the Star Chart. Menu provides for other observation list operations (sorting, note matching, etc.) as well.
Alternatively, you could choose No filter as a Filter type to get all comets above horizon and then sort the resulting list by magnitude.