› Forums › Comets › C/2020 F3 (NEOWISE) › Spectrum
4 May 2021 at 7:33 pm
#582774
Mike Harlow
Spectator
Hi Robin,
I did try a transmission grating spectrum this morning just for fun. Maybe shows the image of the tail in sodium light??? A bit faint but I’ll try again next time I get the chance. Larger image on my members page,
Mike.
Details: Thor labs 300l/mm transmission grating in front of 55mm lens on un-modified Canon 550D DSLR.