Vela Supernova Mosaic

[gregbradley]

Originally Posted by Paul Haese

Very nice Greg. I really like the detail and the colouring looks great.

Just out of interest how fast is your system? I am around f5.6 with the 4" and get halos on the bright stars. Do you use a fast system and do you use Astrodon filters? I am using Astronomiks which have been exchanged once already and note that your images don't have the halo problem mine sometimes do have. I wonder if it is the filters, the f ratio or if it is a combination of both.

Thanks Paul Are you using a reducer to get F5.6?

The TEC110 is F5.6 and uses a flattener as well. I find the Astrodons are quite good with reflections. Haven't much of an issue there. I generally find Astrodon overall to be of a high standard.

Greg.

[gregbradley]

Here is the link to the Ha only part of the mosaic:


http://upload.pbase.com/gregbradley/...50480881/large regular

http://upload.pbase.com/gregbradley/...80881/original large

Greg.

[Paul Haese]

Greg, I am using a reducer to get to 5.6. That I think is part of the problem with reflections. Might have to consider getting some Astrodons to sort this reflection issue.

[atalas]

Looks great ! well done Greg.

[gregbradley]

Originally Posted by Paul Haese

Greg, I am using a reducer to get to 5.6. That I think is part of the problem with reflections. Might have to consider getting some Astrodons to sort this reflection issue.

I'd say so Paul Not 100% sure but I think reducers/correctors are harder on reflections than flatteners. I suspect flatteners only have very mildly curved lenses.

Originally Posted by atalas

Looks great ! well done Greg.

Thanks Louie. Good to hear from you mate.

Greg.

[David Fitz-Henr]

That's very nice Greg; nice tight stars across the whole mosaic, seamlessly stitched together! The processing / colours are superb, lots of detail there as well

[gregbradley]

Originally Posted by David Fitz-Henr

That's very nice Greg; nice tight stars across the whole mosaic, seamlessly stitched together! The processing / colours are superb, lots of detail there as well

Thanks David. I was very happy that the stars were tight. Good seeing and excellent conditions.

Greg.

[Jeffkop (Jeff)]

An awesome image Greg .. right up to your usual standard .. Would enjoy some of that seeing up here .. its been absolutely tragic for . well years now .. Lots of action in that photo, you'de be pretty pleased with it.

[gregbradley]

Originally Posted by Jeffkop

An awesome image Greg .. right up to your usual standard .. Would enjoy some of that seeing up here .. its been absolutely tragic for . well years now .. Lots of action in that photo, you'de be pretty pleased with it.

Thanks very much for the kind words Jeff. I am pleased with it. I intend to extend it on the next few trips as Vela sets for the year. I managed to get 2 panels imaged in one night. I think next time I would be lucky to get 1 1/2. So I'll try to get another 5 panels if I can.

Greg.

[broca (Steve Coates)]

Outstanding results. Beautiful mosaic!

[gregbradley]

Originally Posted by broca

Outstanding results. Beautiful mosaic!

Thanks very much Steve.

Greg.