You are here

Astroimaging Meeting

Deep Sky Imaging for Beginners will run at the start of the meeting, followed by other topics/activities as notified through the AI email mailing list.

25 July 2018 - Session 5: Capturing images with a tracking mount—advanced

Presentation: Polar Alignment and Autoguiding

Up to now, all our exposures have been short ones.  To take full advantage of your equipment you will need to take longer exposures. This will require that your mount be very precisely set up (polar aligned) and also you will need to use a technique known as guiding, which will correct the inevitable small inaccuracies in the tracking of the mount. With the right equipment guiding is usually done automatically, but in the past people guided manually and this is still an option for patient people, or people who just want to try the hobby before spending too much on equipment. This session will explain how to guide with an accurately polar aligned telescope.

Objective: Capture long exposure pictures with a guided and accurately polar aligned tracking mount
Motivation:  Obtain the highest possible quality in our pictures prior to processing
Covers (in overview):
• equatorial mount
• polar alignment
• mount control with a computer
• guiding
• telescope
• mount
• tripod
• camera
• guide camera
• equipment to attach/use guide camera (guide scope/off-axis guiding) to telescope
• guiding software, e.g. PHD2
• various polar-aligning techniques
• guide scope vs off-axis guiding
• guiding

Previous: Session 4: Cameras for astrophotography - 27 June 2018
Next: Session 6: Finding and focusing and selecting a target - 22 August 2018

A full list of dates for Astroimaging Meetings may be viewed at

Visitors are welcome at Astroimaging Meetings. Join the Astroimaging mailing list by sending a request to stating that you wish to join the AI list (we have other lists).

Event Date: 
Wednesday, 25 July, 2018 - 19:30
Epping Creative Centre, 26 Stanley Road, Epping NSW

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer