We offer two main ways to build your image series, astrophotography and advanced. Both ways will give you the same end result.
The image series will appear on the right-hand side in the request summary. From there you will also see the total exposure time, the session overheads, and the total session time.
Astrophotography
If you want a quick way to select filters and exposure times and you are looking to do astrophotography, use this observation mode to build your image series. Note that only astrophotography filters will be available here.
The advanced setting will allow you to build a custom imaging request by selecting individual filters, exposure times and number of images within each series.
Advanced
The advanced setting will allow you to build a custom imaging request by selecting individual filters, exposure times and number of images within each series. From here you can access all filters, including the photometric Sloan filters.
Limitations on Total Exposure Time
For CHI-2, CHI-3 and CHI-4 the minimum total exposure times for your observing requests is 30 minutes.