Photographing the comet, need help

Hi Daniel. I recently used FSQ-106 with a mono camera to image this comet. Scope focal length is similar to your Esprit 100, so depending on the pixel size of your camera and resolution per pixel you can calculate the length of your subs. 

Current sky motion of this comet is around 10" / min. You can always check the latest ephemerides on MPC website:

https://minorplanetcenter.net/iau/MPEph/MPEph.html

I used only RGB without L on this comet and my subs were 60 sec long, but that was few days ago when it was much slower (relative to us, ofc). You can also use your 6D, but if you'll have just 1 chance to shoot it - it's better to use the system that you're already familiar with instead of experimenting with something new.


Clear skies to you

Good question, I have only used color cams for my comet pictures.
I suspect the post processing will be more complex with the mono, but should yield better results, if all goes well.

Normally you only have a relatively small time frame, also because details from the comet will be smeared as the structures change over time. Here you might have an advantage with a one shot color cam as less time is needed.

If you go color, practice before if you can, so you know it's working under real sky.

Cheers,
Stephan

For this comet, because of all the excitement in the Ion tail, I've intentionally been shooting more Luminance than I typically would.  It's produced some pretty amazing views for animations.  So, I've been looping 30s L,R,L,G,L,B exposures with my newt (.8"/px image scale.)  Still enough information to get a decent color imagebut with the details that happen at smaller scales.

Jonathan W MacCollum:
I've been looping 30s L,R,L,G,L,B exposures

Similar here but L=10s, RGB=30s so:  LLLRLLLGLLLB
Once I get some time we'll see how it goes!

Boris Emchenko:

Daniel Renner:
Tomorrow is the only day I can photograph the ztf comet and it will also be the first time imaging a comet.

I use a mono camera (1600mm pro) with my esprit 100 edt and I wonder how long my sub length should be to being able to align each channel? Do I use LRGB or should I only use RGB?

Do people use mono cameras to photograph comets with good reault or is it better to use a color camera?
I have a canon 6d that could be used if it's needed. (but I haven't tried it with my setup yet)

Dear Daniel,
Color camera is a bit superior to mono in comet shooting,  but mono camera is also OK.

I would recommend to shoot only R G B filters (without L) in sequence R-G-B-R-G-B-R-... thus maximizing comet (or stars when comet aligned) travel distance between two images of the same filter. This would greatly help in post processing (sigma clipping during integration).
Regarding exposure - you have to keep comet shifting reasonably low - may be just a few pixels. On your setup with ~1.4 arcsec per pixel I would recommend to try 60 sec or 90 sec maximum.

*** thank you! I will try mono tonight, let's hope I can do it with good results 😊***