Starship Asterisk*

Many thanks for this image. I totally did not know about the halo of the Cat's Eye.

Another APOD I can't see - presumably because it is a video file format ?

Wonderful picture. It has now pushed me over the edge - I am going to try to do photos like this. Any suggestions anyone? To help you get orientatated I have camera and tripod - software and method is what I'm looking for. Thanks

The text explanation mentions that several geological processes have been identified in the canyon - anyone know what they are?

Thanks for the analemma calculations - seems quite easy as long as you know the orbital shape / equation of time?

The detail in this image is really amazing - all those swirls and eddys. This has to be on my list of favourite APODs

Perhaps the gas giant will then have a spotless record...

Good to see such a clear picture though - it looks just like the one I get through my 6 inch reflector (NOT..!)

I don't know how to choose either; although it is very close to home, the Iceland volcano cloud and lightning has to rank as one of the most memorable for me... http://apod.nasa.gov/apod/ap140420.html at the opposite end of the scale, the Hubble Deep field view gets me thinking... http://apod.nasa.g...

Very impressive - those explosions were a surprise. Had a quick look at the Illustris website - there is lots more available there for those who have the time to explore. I will definitely be doing so. The video will be an excellent classroom activity with which to start a discussion.

Thanks Chris, for the insight, especially about the impact of ccds.

I find this such a remarkable image. The supernova itself is amazing to see, but aside from this, the way the light from the background galaxy/galaxies is smeared around the big foreground galaxy in concentric rings - wow! I wonder if Abell saw this in his original survey? And this leads to the next...