Fieldsy Posted September 5, 2019 Share Posted September 5, 2019 Hi all I'm predicted to get 4 hrs dark tonight and I'm all setup and charged . 130pds asi178mono so need something bright any recommendations ?. Asiair pa 🤞🏻 . Link to comment Share on other sites More sharing options...
vlaiv Posted September 5, 2019 Share Posted September 5, 2019 Fancy an open cluster? M29 is nicely positioned and quite compact - framed nicely in your FOV. Globular - M15. Nebula - Maybe Crescent nebula? It is nicely framed. Cocoon is also good fit Galaxy - NGC7331 is always a nice target. Link to comment Share on other sites More sharing options...
Fieldsy Posted September 5, 2019 Author Share Posted September 5, 2019 Ngc7331 looks good nice and large aswell thanks just hope it’s not behind my house lol🤞🏻 my viewing range is n to sse then s to west just my luck looks like 7331 and crescent nebula May be Be hind my cherry tree 🌳🤔🧨 Link to comment Share on other sites More sharing options...
Adam J Posted September 5, 2019 Share Posted September 5, 2019 17 minutes ago, Fieldsy said: Ngc7331 looks good nice and large aswell thanks just hope it’s not behind my house lol🤞🏻 my viewing range is n to sse NGC7331 looks like something worth a try, if you want a emission nebula then the Signus wall is a good bright section of the north American nebula that will fit with careful framing and a Ha filter. The crescent Nebula might work, or the propeller DWB111 fits nicely too. However the broad band galaxy target will be easier starting out. 60- 120 second luminance subs are probably a good place to start. Link to comment Share on other sites More sharing options...
Fieldsy Posted September 5, 2019 Author Share Posted September 5, 2019 45 minutes ago, Adam J said: NGC7331 looks like something worth a try, if you want a emission nebula then the Signus wall is a good bright section of the north American nebula that will fit with careful framing and a Ha filter. The crescent Nebula might work, or the propeller DWB111 fits nicely too. However the broad band galaxy target will be easier starting out. 60- 120 second luminance subs are probably a good place to start. 60 -120 subs ok with non cooled cam? Link to comment Share on other sites More sharing options...
vlaiv Posted September 5, 2019 Share Posted September 5, 2019 55 minutes ago, Fieldsy said: 60 -120 subs ok with non cooled cam? Depends on a cam. I did some 60s exposures with ASI185 and it worked to some extent. I don't remember going longer than that. Link to comment Share on other sites More sharing options...
Adam J Posted September 5, 2019 Share Posted September 5, 2019 2 hours ago, Fieldsy said: 60 -120 subs ok with non cooled cam? depends on the ambient temperature. Could go with 30seconds if its a warm night. I think i worked out optimal gain and exposure for you before so just go with those figures. Link to comment Share on other sites More sharing options...
Fieldsy Posted September 5, 2019 Author Share Posted September 5, 2019 5 minutes ago, Adam J said: depends on the ambient temperature. Could go with 30seconds if its a warm night. I think i worked out optimal gain and exposure for you before so just go with those figures. Not the best track but no trails so thought would try Link to comment Share on other sites More sharing options...
Adam J Posted September 5, 2019 Share Posted September 5, 2019 9 minutes ago, Fieldsy said: Not the best track but no trails so thought woughtld try i yeah 200 seconds at 17.1c is too much Also from the stars your colimation looks out? But at least thats your target! The thing is longer subs can look better on a sub for sub basis but over a night your better off with more shorter subs by the time you stack them. 200 gain is too high for 200second subs if that length gain 50 is a better bet to not blow stars and the galaxy core out. 200 will work better with 30 second subs. Also shorter subs work better with poor tracking. Just trust that you will get something out from many many subs stacked even if the individual subs look a little rubbish. Adam Link to comment Share on other sites More sharing options...
Fieldsy Posted September 5, 2019 Author Share Posted September 5, 2019 RGBHL .30 sec subs and 10 sec subs all at 200 gain total 200 shots, stars look as if I have correct target but cant make the galaxy out. Then if the 30 sec subs got trails though the 10 secs would be ok. Link to comment Share on other sites More sharing options...
Adam J Posted September 5, 2019 Share Posted September 5, 2019 1 minute ago, Fieldsy said: RGBHL .30 sec subs and 10 sec subs all at 200 gain total 200 shots, stars look as if I have correct target but cant make the galaxy out. Then if the 30 sec subs got trails though the 10 secs would be ok. i would need to see the 30s subs and guide graph to help mate. Link to comment Share on other sites More sharing options...
Fieldsy Posted September 5, 2019 Author Share Posted September 5, 2019 😭😭😭😭 losing star clouds have come in . Link to comment Share on other sites More sharing options...
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