MarsG76

On 23/03/2024 at 00:21, iwols said:

That's a great image did you use pi 

No... I processed this image using Siril & finishing touches in Photoshop.

On 02/03/2024 at 22:28, fwm891 said:

Needs rotating by 180° - great image though (unless your southern hemisphere!)

You're not the first to point out the orientation of Orion... I did image this from Australia, so kept the orientation in the way it's visible down here...

On 31/08/2022 at 01:51, fwm891 said:

Superb imaging MarsG76.

I see you've said your imaging at f33 with a C8 - how are you getting to f33: extender, barlow, EP projection...

Although I've been imaging DSO's for some time I've only just dipped my toe into planetary (this week).

Currently using a TS RC8 and ASI662 so my image scale is much smaller. Waiting for a 3x tele extender to arrive.

I came to the figure of f33 by using a formula I found on Cloudy Nights which allowed me to calculate the focal length by the distance between my CCD and the Celestron 2X Ultima Barlow.

The setup was C8->2X Barlow->Vixen Flip mirror (15cm)-> CCD.
BUT recently when playing with other features of WinJupos.. such as the focal length calculator, WinJupos calculates this image as f52!?

1 hour ago, Mandy D said:

Sorry, I was referring to my own image where the small dot is Titan. I did not make that very clear, did I?

HAHA... they're all dots and pixels from our distance... have you uploaded anywhere? I'd like to see your work.

6 minutes ago, Mandy D said:

It certainly beats my "big dot for Saturn", "Little dot for Titan" images! Nice!

That "dot" is Dionie not Titan, according to the "Gas Giants" app.

On 08/02/2022 at 01:06, Mark Nash said:

That's excellent! What gain did you use? I did my first Ha session on M42 last Friday and the image is so weak that DSS treated most of it as noise and the stacked frame lost all the detail! I did 240s with a gain of 100 with an Altair 183CPROTEC. I'm going to have to increase exposure and gain I suspect.

Hi, thanks for the feedback... the gain I used was 62 at the High Control Gain (HCG) mode with an offset of 25 and Bin 1x1.
I cooled the camera to -3C, about as cool as I can get to be consistent during summer nights which are around the 27C mark.

On 10/11/2020 at 10:47, orion25 said:

Look at that polar cap. And is that Olympus Mons?

I dare say that it is Mount Olympus.....

8 hours ago, dyfiastro said:

VERY nice indeed.
Out of interest which Lens was this with?

 

Thanks for the comment, the lens I used for this image was a Sigma 150mm macro f2.8 EX prime lens.

5 hours ago, Craney said:

Is this a  'prom' and 'surface'   combo shot  or  processed from a single image ??

Radiating nuclear power plant ?

8 hours ago, xtreemchaos said:

cracker MG, love it. charl. 

Nice big "tail" there that day...

8 hours ago, xtreemchaos said:

breathtaking prom mate. charl. 

Occasionally some nice big ones do show up.. I've probably missed a whole heaps of them as I haven't imaged the sun for AGES.... as I'm sure you can tell, I'm itching to get some solar astrophotography and observation done.

4 hours ago, Craney said:

Is this a  'prom' and 'surface'   combo shot  or  processed from a single image ??

It's captured one after the other, surface than proms and processed separately. The prominence need a much longer/higher gain exposure than the solar disc. from memory the solar disc was a 1/5000th sec where the proms were at 1/100th.

I found it... attached is my video, timelapse of a Lunar sunrise shadow creep....

Moon_Timelapse_8Jun2015_4x.mp4

35 minutes ago, spaceman_spiff said:

Thanks,

I was wondering whether anyone else has done a close up lunar time lapse.

Same here... back before I did my time lapse of a lunar sunrise, I googled and searched various Astro forums to see if anyone done something like this... I found nothing... I dare say we might be the first two who done something like this.... namely a shadow creep lunar timelapse.

Awesome... reminds me of  when I did this kind of moon time lapse back in June 2015.

Thank you...

Yes, much improved.

Very detailed Clavius.... nice shot.

That is a nice M51. 

Once again I was lucky enough to have very clear skies. I was observing Saturn through my 8SE and I kept on pushing the magnification to beyond the 450X mark and beyond with perfect views.

With the 5mm eyepiece and the TV 11mm type 6 + 2.5X powermate the view was amazing... crisp and detailed. I thought I'd be stupid and put the 5mm and a 2X barlow to see what will happen, and even though the image was quite soft, Saturn was MASSIVE... of course that was 810X... but to my surprise I was still able to make out a brightish cloud band and the cassini division.

With such a steady atmosphere I had to try to image it and I think these Saturn images are the cleanest I captured so far, so I thought I'd share.

Work flow was I imaged the F20 pic through a Celestron 2X Barlow and the Skyris 618C CCD, and the F50 image was captured using the DMK 21au618 and a 5X powermate. The mono F50 image was used as luminance on the color data scaled up which was captured with the Skyris. I'm very surprised at the quality of planets I'm getting with the Skyris for a OSC camera.

Image processing was done done in PS, Stacking in Autostakkert and a very small amount of wavelets applied in registax 6.

I suspect I'm pushing my 8" SCT to the limit, or close to it, but if anyone has any advise or tips on how to squeeze out and more detail, please share. One feature I was chasing for over a year now was the Encke gap, I feel like I'm right on the verge of capturing it but perhaps my mirror is just slightly too small for it.