Bob's Blog @robert-vanderbei - Tumblr Blog

Image of the Ring Nebula, aka M57, taken with my 10" RC telescope and a diffraction grating. The diffracted stars are all streaks but the diffracted nebula is just two blobs--the blue blob is O-III wavelength and the red blob is H-alpha.

musts

Stars by cedrik strahm

I took this picture of Comet 103p/Hartley on the morning of October 8th as it passed almost in front of the Double Cluster.

#Comet 103p Hartley

A seriously intense thunder storm rolled through this evening.

It’s not as good as some of my earlier images of Jupiter but I like it because it shows the Great Red Spot and Red Jr. (aka Oval BA).

#Jupiter #Questar

#NGC 6960 #Witch's Broom #Supernova remnant #Veil Nebula

Wavelet image sharpening allows one to achieve image resolution twice as good as the Rayleigh criterion would suggest. Here's an example based on a recent image of Jupiter I took with my 3.5" aperture Questar.

#Jupiter #Raleigh criterion #resolution #wavelet #sharpening #deconvolution