Datasets for education and for fun

The orion nebula Messier 42

m42_40min_red.zip: A zip'ped FITS file from the Digitized Sky survey 2 of the Andromeda galaxy Messier 31 through an R filter. 59.2 MB  
m42_40min_ir.zip A zip'ped FITS file from the Digitized Sky survey 2 of the Andromeda galaxy Messier 31 through an I filter. 69.6 MB  

m42_40min_composite.zip: A zip'ped 16 bit composite psd file of the two exposures. The third layer is composed as an average of the two other layers, and has been given a green hue. 88.8 MB

 
m42_40min_composite_8bit.zip: A zip'ped 8 bit composite psd file of the two exposures. The third layer is composed as an average of the two other layers, and has been given a green hue. 43.0 MB