Vela Supernova Remnant widefield

gregbradley · #1 14-02-2009, 10:28 AM

This was the start of a widefield mosaic but the 2nd panel seemed completely different to this one.

FSQ106EDX with F3.64 reducer and Apogee U16M camera, Baader LRGB and Astrodon Ha, O111. About 3.5 hours total.

http://www.pbase.com/gregbradley/image/108948186

This is the last image I have from my recent imaging trips.

Greg.

renormalised (Carl) · #2 14-02-2009, 12:40 PM

Excellent detail in the neb there....good work!!

Hagar (Doug) · #3 14-02-2009, 12:58 PM

Another great shot Greg. Will be nice to see the entire mosaic when you get it all done and pieced together.
Your productivity is astonishing.
Keep at it.

Garyh · #4 14-02-2009, 01:18 PM

Another lovely image Greg! that TAK with a reducer give a nice FOV for this!

Jen · #5 14-02-2009, 04:54 PM

nice picture Greg

gregbradley · #6 14-02-2009, 07:55 PM

Quote:

Originally Posted by renormalised

Excellent detail in the neb there....good work!!

Thanks for that. The detail mainly comes from the Ha and O111.

Quote:

Originally Posted by Hagar

Another great shot Greg. Will be nice to see the entire mosaic when you get it all done and pieced together.
Your productivity is astonishing.
Keep at it.

I had a good run, 9 nights straight losing only 1/2 a night with good seeing and clear dark skies. Then a 2nd trip got 3 out of 4 nights.

Quote:

Originally Posted by Garyh

Another lovely image Greg! that TAK with a reducer give a nice FOV for this!

The little FSQ with that reducer picks up a lot of sky.

Quote:

Originally Posted by Jen

nice picture Greg

Thanks Jen.

Greg.

Paul Haese · #7 15-02-2009, 06:29 PM

Nice image Greg, Excellent detailed image. Just wondering if you can see the green triangle in the top part of the image? It looks like a gradient.

Love the detail and colouring of the rest of the image though.

gregbradley · #8 16-02-2009, 09:23 PM

Quote:

Originally Posted by Paul Haese

Nice image Greg, Excellent detailed image. Just wondering if you can see the green triangle in the top part of the image? It looks like a gradient.

Love the detail and colouring of the rest of the image though.

Hi Paul. The green areas are the O111 areas of the image. The O111 areas aren't evenly distributed throughout the whole area so there are pockets of it where it is more intense. I am pretty sure its not a gradient but I did not use flats on these as I recall as for some reason flats made it worse. I balanced it out through Photoshop and CCDstack. That aspect could have been more perfect.

Greg.

Ric · #9 17-02-2009, 09:51 PM

A wonderful image Greg, it looks wonderful just hanging there in space.

gregbradley · #10 17-02-2009, 11:23 PM

Quote:

Originally Posted by Ric

A wonderful image Greg, it looks wonderful just hanging there in space.

Thanks Ric, appreciated.

Greg.

CometGuy · #11 18-02-2009, 10:05 PM

Greg,

Lovely image, thats one of my favourite areas!

Did you find that the FSQ + Reducer could cover the full chip of the U16 or did you need to crop down?

Terry

gregbradley · #12 18-02-2009, 10:16 PM

Quote:

Originally Posted by CometGuy

Greg,

Lovely image, thats one of my favourite areas!

Did you find that the FSQ + Reducer could cover the full chip of the U16 or did you need to crop down?

Terry

It covers the whole chip without any need to crop. Stars are round corner to corner. A bit undersampled though.

Greg.

multiweb (Marc) · #13 19-02-2009, 08:03 AM

Nice. This object goes on forever. Huge field.

gregbradley · #14 21-02-2009, 12:10 PM

Quote:

Originally Posted by multiweb

Nice. This object goes on forever. Huge field.

Thanks Marc,

Yes it is an enormous object and requires a mosaic to capture it all.

Greg.

RB (Andrew) · #15 21-02-2009, 12:14 PM

That's just wonderful Greg !
An amazing area to look at.
I almost feel like popping on my 3D glasses to have a look at it, it has that feel about it.

Very nice work.

Octane (Humayun) · #16 23-02-2009, 12:01 AM

Greg,

That's awesome. Just makes you wonder what happened up there to cause all that mess!

Regards,
Humayun

gregbradley · #17 24-02-2009, 05:28 PM

Quote:

Originally Posted by RB

That's just wonderful Greg !
An amazing area to look at.
I almost feel like popping on my 3D glasses to have a look at it, it has that feel about it.

Very nice work.

Thanks Andrew.

I am planning to use my AP140 from now on for widefield work. I have the AP 155 telecompressor/corrector that gives F5.4 and with the Apogee U16M it won't be as wide as that field but it will be several times higher resolution. The AP140 scope is an amazing piece of optical and mechanical perfection. Everything about it is great. And this reducer/corrector is a piece of optical genius. No other reducer I know of will give pinpoint stars to the corner of a large chip - but this baby does!

I tried to use it last night and had everything setup and the new adapter I got to attach it to my Apogee filter wheel had a problem (no worries it only took me 2 hours to set it up after dismantling the 180 scope!! - ah that is life in the imaging world eh?). I have seen images from John Gleason and Thomas Davis that are breathtaking with an almost identical setup. So I hope to produce some nice widefield images with that soon once I get the gear sorted (almost there).

Greg.

Quote:

Originally Posted by Octane

Greg,

That's awesome. Just makes you wonder what happened up there to cause all that mess!

Regards,
Humayun

A big big bang I think - kaboooommm!

Greg.

Bassnut (Fred) · #18 24-02-2009, 08:20 PM

Well Greg, very nice, but the neb detail seems to get buried in pesky stars. I dont know if this image (Neil Flemmings, one of the most outstanding images ive ever seen, zoom in and you will see why) is of the same area as yours, but NB sure brings out the neb in this particular case. That detail is there in your image but painfully diminished. Whats the difference in capture?

Are you going to give this a poke in NB on your new toy?

gregbradley · #19 24-02-2009, 11:43 PM

Quote:

Originally Posted by Bassnut

Well Greg, very nice, but the neb detail seems to get buried in pesky stars. I dont know if this image (Neil Flemmings, one of the most outstanding images ive ever seen, zoom in and you will see why) is of the same area as yours, but NB sure brings out the neb in this particular case. That detail is there in your image but painfully diminished. Whats the difference in capture?

Are you going to give this a poke in NB on your new toy?

Hi Fred,

Neil's image is fantastic ( as I recall he used a TMB 205 or 225mm refractor) but that's the Veil Nebula - that's a northern hemisphere target. Mine is the Vela SNR which is near Suhail near the south pole. I assume you mean it is the same sort of target?

Yes but I think the Veil is a lot brighter than Vela but point taken it can be brighter if I did 40 hours like Neil did.

I took this one also with the BRC which I was happy with and it is more detailed. I personally find O111 Ha LRGB to be a formula I like more than straight S11 Ha O111. S11 is such a slow filter that has so little data on it.
But some objects it suits.

Yes I have imaged Vela with both the Tak BRC and the TEC180. The BRC shot was the better as it had more exposure and more filters using
O111 Ha LRGB.

I've imaged this area now about 6 times with different scopes and not planning to do more at this stage but I might. AP140 with its F5.4 telecompressor and the U16M camera would make an ideal setup for it.A bit like a super FSQ.

Here it is:

http://www.pbase.com/gregbradley/image/108130209

Cheers,

Greg.