List of Suggested Targets

This is the name of the object. The letters usually stand for a catalogue of some kind (e.g. M being Messier, NGC being New Galactic Catalogue), and the number is just the object’s place in the catalogue.

Any other names for the object are given in brackets.

This tells you what the object is (e.g. star cluster, nebula, galaxy).

There might also be some extra information about it's classification. For example, the star cluster may be globular or open.

This gives an idea of what the object looks like.

Please note that the images are not a true indication of what you will observe. There are many factors (such as weather, moon phase, light pollution, etc.) that can affect the observing conditions from night to night. 

This tells you which location (Australia and/or Hawaii) the target will be visible from.

Remember to check the time of your Live Observing slot to know where your telescope is based – morning (am) slots for Australia and afternoon (pm) slots for Hawaii.

Part of a celestial coordinate system that lets us measure the locations of objects in the sky. It is a set of three numbers: the first is given in hours, then minutes, and the last is seconds.

For simplicity, these have been left out of the table below and the numbers are separated with a colon. This is how the right ascension needs to be inputted on the Real-time Interface (if using manual mode - read the Guidance for Live Observing for more information).

Part of a celestial coordinate system that lets us measure locations of objects in the sky. It is a set of three numbers: the first is given in degrees, then arcminutes, and the last is arcseconds.

For simplicity, these have been left out of the table below and the numbers are separated with a colon. This is how the declination needs to be inputted on the Real-time Interface (if using manual mode - read the Guidance for Live Observing for more information).

This is how long the camera needs so it can take a good image. It is measured in seconds (s).

Enough light must be collected so that we can see the object. Faint, far away objects will have a longer exposure time than objects that are bright and closer to Earth.

The exposure times are the same for each filter - red, green, and blue. For example, suppose an object has an exposure time of 30 seconds. You would input that into the exposure time for the red filter, green filter, and blue filter.

These pictures are taken simultaneously. So, going back to the example object, you won't need to wait 1 minute and 30 seconds to have all 3 images. Once the telescope has found the object, the camera begins exposing, and the red, green, and blue pictures will have been taken after 30 seconds. You'll be able to view these when they've been processed.

Read the Guidance for Live Observing for more information about taking and viewing images.