6 replies to this topic

[Dan_I]

          Hi,

 

despite the nearly full moon and mediocre seeing, the last two nights were clear over Paris so I took this opportunity to image a pair of rather bright and contrasty galaxies in Ursa Major with my recently home-made 10" f/4.8 astrograph, a 2.5" Wynne corrector, an ASI183mm  and an AP900 mount from my Bortle 7 backyard.

 

 

First  M106 which needs little introduction. The wind was rather strong (about 40km/h), which made accurate tracking difficult even for my AP900 mount. I kept 270*60sec in luminance and 25*60sec per color channel (click for full-resolution):

 

 

Second NGC3953,  a beautiful barred spiral near Phecda, about 60 million light-years away. I kept 330*60sec in luminance and 30*60sec per color channel (click for full-resolution):

 

 

Thanks for loolking and clear skies,

 

Dan

Edited by Dan_I, 19 March 2025 - 09:50 AM.

[Spaceman 56]

 

Second NGC3953, 

 

 

Thanks for loolking and clear skies,

 

Dan

Very colourful Dan.  

 

are you happy with the results you are getting ?

 

Things to work on ?

[Campos]

Spectacular results!

[Dan_I]

Very colourful Dan.

are you happy with the results you are getting ?

Things to work on ?

Thanks! I'm happy so far but did not have yet a night with very good seeing to find out what it's capable of....

I don't see any room for improvement with the scope at this stage, except maybe fitting a fan at the back of the mirror cell. I never felt the need with the 8" but the 10" mirror weighs a third more....

Spectacular results!

Thanks Luis!

Clear skies,

Dan

Edited by Dan_I, 21 March 2025 - 06:16 PM.

[PeteM]

Solid results Dan, despite not so great seeing. Your custom 8" and 10" projects over the years have been a big inspiration for my 12" upgrade project, which should be completed finally soon.

[Dan_I]

Solid results Dan, despite not so great seeing. Your custom 8" and 10" projects over the years have been a big inspiration for my 12" upgrade project, which should be completed finally soon.

Thanks Pete! Please share your build with us and looking forward to seeing its first light!

Clear skies,

Dan

Edited by Dan_I, 22 March 2025 - 04:24 PM.

[PeteM]

I wish I was doing a build thread like you and others have. I am pretty much at the end already. I am doing some testing tonight under partly cloudy conditions. But will create a thread to document where I started and the journey, since I think many for considered it before (upgrading a large GSO newt).