ASTRO: NGC7K in Ha/O3 from 300mm ED lens / 39MP camera

this is the Ha data recently published combined with 31 x 15 minutes of
[OIII]. Total time is 12H 15M. Used the 6x7 Pentax 300mm EDIF with Proline
PL39000M camera and FLI research grade Ha and [OIII] filters.

this data was taken on three nights: May 30 and June 4&5. All subs were 15
minutes.

be sure to look at the full resolution version

http://www.narrowbandimaging.com/ngc..._hao3_page.htm

On 6/7/2010 12:38 AM, Richard Crisp wrote:
this is the Ha data recently published combined with 31 x 15 minutes of
[OIII]. Total time is 12H 15M. Used the 6x7 Pentax 300mm EDIF with Proline
PL39000M camera and FLI research grade Ha and [OIII] filters.

this data was taken on three nights: May 30 and June 4&5. All subs were 15
minutes.

be sure to look at the full resolution version

http://www.narrowbandimaging.com/ngc..._hao3_page.htm


Color came out rather close to RGB colors. Seems to be a large red halo
around Deneb. Real HII or glare?

Weak in OIII? You have a lot more OIII time.

Came out great.

I have only about an hour of dark skies right now so taking something
like this is impossible for me.

Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

"Rick Johnson" wrote in message
. com...
On 6/7/2010 12:38 AM, Richard Crisp wrote:
this is the Ha data recently published combined with 31 x 15 minutes of
[OIII]. Total time is 12H 15M. Used the 6x7 Pentax 300mm EDIF with
Proline
PL39000M camera and FLI research grade Ha and [OIII] filters.

this data was taken on three nights: May 30 and June 4&5. All subs were
15
minutes.

be sure to look at the full resolution version

http://www.narrowbandimaging.com/ngc..._hao3_page.htm


Color came out rather close to RGB colors. Seems to be a large red halo
around Deneb. Real HII or glare?


I think it is both.... there's a halo but I believe there is a lot of HII
around there too



Weak in OIII? You have a lot more OIII time.

There's a ton of OIII, it is just how I processed it.

usually once you get a certain amount of it, all taking more exposure does
is reduces the random noise in it..



Came out great.

thanks



I have only about an hour of dark skies right now so taking something like
this is impossible for me.

It gets reasonably dark by 10:30 and it stay so until about 4:30 right now




Rick

--
Correct domain name is arvig and it is net not com. Prefix is correct.
Third character is a zero rather than a capital "Oh".

Richard,

very good image. I think my favourite size is the 16MP version. While the
full size version is smooth enough, the 16MP saves a bit pf scrolling and
doesn't lose any detail as far as I can tell.

Stefan

"Richard Crisp" schrieb im Newsbeitrag
...
this is the Ha data recently published combined with 31 x 15 minutes of
[OIII]. Total time is 12H 15M. Used the 6x7 Pentax 300mm EDIF with Proline
PL39000M camera and FLI research grade Ha and [OIII] filters.

this data was taken on three nights: May 30 and June 4&5. All subs were 15
minutes.

be sure to look at the full resolution version

http://www.narrowbandimaging.com/ngc..._hao3_page.htm