Taking a picture of the most luminous blazar flare ever recorded.

A blazar is an active galactic nucleus with a relativistic jet (a jet composed of ionized matter traveling at nearly the speed of light) directed towards the observer. CTA 102 is a blazar-type quasar discovered in the early 1960s in the constellation Pegasus. It is also one of the two great false alarms in theContinue reading “Taking a picture of the most luminous blazar flare ever recorded.”

Simeis 147, the Spaghetti nebula

Simeis 147, also known as the Spaghetti Nebula or Sharpless 2-240 is a supernova remnant in Taurus. It was discovered so late (1952), because it’s dim. I was curious to see what was possible on the low end from my site with the Borg 55 and a H-Alpha filter. So here it is. I haveContinue reading “Simeis 147, the Spaghetti nebula”

Orion H-Alpha mosaic

This is my first H alpha mosaic, using the Borg 55. It was acquired over the winter of 2018-2019, and one of the goals was to image the Barnard loop (Sh 2-276), a supernova remnant. The mosaic is centered on the horse head dark nebula (Barnard 33). https://erellaz.com/wp-content/uploads/2020/05/Barnard33.jpg

Colorizing old black and white pictures with deoldify

I was looking for a cool Machine Learning project, using Python, of course, and either PyTorch or Tensor Flow, since it’s what the cool kids are doing those days. I have also always had an interest in restoration of old pictures, and sometimes colorizing them, which is a very tedious & time consuming project ifContinue reading “Colorizing old black and white pictures with deoldify”