JPEG Viewer
This is spreadsheet software allowing students of all ages to measure objects in astronomical images and make comparisons with familiar objects. Also measures pitch angles of spiral arms in galaxies. Accompanying practice worksheets including one using (mainly) Faulkes images to study:
a) different scales in the Universe
b) the life cycle of stars
JPEG Viewer for Windows (.xls)
JPEG Viewer for Macintosh (.xls)
JPEG Viewer Instructions (.pdf)
Brief Worksheet (to show how to use the JPEG Viewer) .pdf))
Longer Practice Worksheet (on using the JPEG Viewer) .pdf))
Extended Worksheet (on using the JPEG Viewer (including scale in the Universe, life cycle of stars and measuring galaxies)) .pdf)
Sample Images ( for use with Worksheets (ZIP file ≈ 5MB))
Profiles
Spiral Galaxy Discs (.xls)
Spreadsheet for analysis of surface brightness of discs of spiral and other disc galaxies.
Spiral Galaxy Discs & Bulges (.xls)
Spreadsheet for analysis of surface brightness of discs and bulges of spiral and other disc galaxies.
Elliptical Galaxies (.xls)
Spreadsheet for analysis of surface brightness of elliptical galaxies.
Slice
Slice (.xls)
Plots surface brightness profiles of disc galaxies in a simple way, allowing users to print these off and make their own measurement. Developed with assessed coursework in mind.