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Re: NGC2024 Region in Ha

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  • garyemc
    Thanks Bob! I can easily get 30min subs most of the time with my setup. And with my reducer I believe I m at f4.7. I ll test it this weekend if the weather
    Message 1 of 7 , Oct 8, 2012
      Thanks Bob! I can easily get 30min subs most of the time with my setup. And with my reducer I believe I'm at f4.7. I'll test it this weekend if the weather holds. I'll also be at a dark sky location so that should help.

      gary

      --- In ccd-newastro@yahoogroups.com, "Bob Franke" <bfranke@...> wrote:
      >
      > Hi Gary,
      >
      > That's very good for only 5-minute subs. NB work needs long exposures. If your mount can do it, go for 15 to 30-minute subs. At f/5, I'm going 15-minutes and with the f/9 scope, and a better mount, I use 30. Start with 15 subs and add more is the image is still too noisy. Of course, this assumes you have an abundance of clear skies.
      >
      > Cheers,
      > Bob
      > http://bf-astro.com
      >
      >
      > --- In ccd-newastro@yahoogroups.com, "garyemc" <garyemc@> wrote:
      > >
      > > I shot this region of ngc2924 on 09/23/2012 from my backyard (urban location) with the moon 65% illuminated. It's (32) 5 min subs shot with an AP130EDFGT using a 2.7" tele-compressor along with an Apogee Alta U8300 and Astrodon's 3nm Ha filter. All processing was accomplished with MaxinDL v5.09 and PSCS4. I'm a little unsure as to whether I should have increased my sub time to maybe 7min, or maybe taken more subs. Any feedback would be appreciated.
      > >
      > > The image is in the Photos section in a folder labelled Gary Shuluk.
      > >
      > > http://groups.yahoo.com/group/ccd-newastro/photos/album/209600250/pic/2074576545/view?picmode=&mode=tn&order=ordinal&start=1&count=20&dir=asc
      > >
      > > Thanks much!
      > > gary
      > >
      >
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