Three more new ones (2 gals and 1 neb)

[richardc]

NGC7331: 102 x 5 minutes, AP180EDT f/9, U8300, camel

http://www.narrowbandimaging.com/ngc7331_ap180edt_f9_u8300_camel_page.htm

NGC253: 37 x 5 minutes, AP180EDT f/9, U8300, camel

http://www.narrowbandimaging.com/ngc253_ap180edt_f9_u8300_camel_page.htm

Bubble Nebula: 31 x 15 minutes, AP180EDT ML4022, S2/Ha/O3

http://www.narrowbandimaging.com/ngc7635_ap180edt_f9_ml4022_cs3_s2hao3_page.htm

I had shot this data prior to my two week trip to Asia, but did not have all the cal files I needed to process them. So I had to wait until I returned.

The data was taken in part under nearly exceptional seeing conditions: I measured 1.3" one night when shooting the two galaxies and 1.6" the other night. The bubble was shot under skies with about 1.9" seeing at zenith. I have never had such good seeing before.

[MikeD]

Three fantasic images clean and deep, that ngc253 is stunning.:headbang:

Mike.

[arad85]

Wow!!!

[glennbech]

Excellent! Could you please elaborate a bit on how you measure the seeing?

[narrowbandpaul]

hi Richard

I am trying to plate solve the NGC7331. Way too many galaxies to count. I need to find the online software again

NGC7331 does it for me.

wow.

[barkis]

Incredible stuff.

7331, Countless galaxies, like your own deep field.

253, is so beautiful., and the Bubble Narrowband in NB

looks magical.

Ron.

[Beyond_Vision]

Love the galaxy images both have superb detail.

Regards

Kevin

[richardc]

Excellent! Could you please elaborate a bit on how you measure the seeing?

Thanks for the comments. For the seeing measurement, I just use Maxim DL and put my cursor over a star I use for focusing and read the FWHM directly from Maxim DL.

You first set the image scale (tell it the pixel size of the detector and the focal length of the scope and it will compute the image scale: about 0.8"/pixel in my case)

it is interesting that I am just about critically sampled using the 0.8"/pixel image scale coupled with 1.6" seeing....

[RobH]

A particularly fine NGC253 Richard.

Are you planning on any colour data for this?

Cheers

Rob

[richardc]

A particularly fine NGC253 Richard.

Are you planning on any colour data for this?

Cheers

Rob

Color is of interest Rob

I need some time under the stars with clear skies. Maybe this weekend I will get a chance

rdc

[moocher]

There all great!!! NGC7331 really gives a sense of "depth".....and now its my "desktop":D

Alan:)

[richardc]

There all great!!! NGC7331 really gives a sense of "depth".....and now its my "desktop":D

Alan:)

well thank you Alan. glad to be able to provide a nice desktop shot for you!

[moocher]

I`ve always had a "soft" spot for this grouping and your image is magic!!!!

Alan:)

[Taff]

Very nice they are great captures with you.Mark

[JCJC]

Incredible images.....

Jordan

[Psychobilly]

Yep 3 incredible images

Paul Astromnetry.net only identifies the 3 largest galaxies and doesn't bother with the rest

[Psychobilly]

There's obviously a load more in there though...

[richardc]

thanks for mapping it out Pysch...

[newbie]

Just awesome. Thanks for sharing.

[narrowbandpaul]

that saves me doing it

there are a ton of galaxies...all those PGC guys. Why leave them alone. I would think widefield galaxy images would be their main haul.