First light from Prossy with colour

[Slawomir]

Hi all,

Last night it got really cold (8C !) so I took advantage of good astro weather and added RGB data. Unfortunately, for a strange reason, got only 15 minutes of usable blue as the rest of the subs were shifted by about 1500 pixels so I discarded them.

A crop: https://www.astrobin.com/full/346610/0/

Full frame: https://www.astrobin.com/full/346610/B/

I have confirmed what I was suspecting for some time - my 3.2" FTF has some flex so I will need to look into rectifying that.

Thank you for looking!
Suavi

[atalas]

Looks great Suavi :thumbsup: bottom left.....is that the tilt your talking about?don't think I would of noticed If you hadn't mentioned It.

[Slawomir]

Thank you Louie.

Star shapes slightly change depending on the orientation of the telescope - nice and round when pointing approximately straight up. So it has to be a flex. Would not suspect a FTF to flex - my Moonlite was rock solid...

[atalas]

Yeah,the QSI isn't a heavy camera.....this is what I use to see from the BabyQ's focuser,ended up sending that back to Tak and they beefed up the focuser.

[gregbradley]

That looks great. Love the stars as well, nicely natural. What scope is this?

Greg.

[Slawomir]

I may try sensibly tightening all bolts.



Glad you like it Greg. It’s a small CFF (105mm f/6).

[Atmos]

It is still a very lovely image Suavi!
I am surprised to hear that the FTF is flexing. I know I was getting a little with my refractor focuser but that was with probably more than twice the weight and wasn't a fancy Feather Touch. Maybe there is something that needs to be tightened a little?

[Slawomir]

Thanks Colin.

I believe I found and hopefully rectified the cause(s). The screw at the top of the FTF was quite loose - so I tightened it a bit. I read that TEC recommended tightening this screw for heavier loads as they noticed some flexing with 3.5" FTF and this is supposed to help. Also, a ring holding the field corrector's lens in place was for some reason not tightly threaded in and the lens was moving a bit inside the corrector. I suspect this could have been the main gremlin. So hopefully, the next astro image from Prossy will have beautiful pinpoint stars across the entire image.

[topheart]

Very nice image especially for a first light!!
Cheers,
Tim

[Atmos]

If all isn’t well and you cannot get it working, just send it down to me for a while and I’ll make sure I give it a good few months testing ;)

[Slawomir]

Thank you Tim.

Its not actually the first light with this scope, but first from a new home and first “proper” RGB since previously I used to be a narrowband guy.



Thank you Colin for your kind offer. I am confident she is going to sing from now on, but asking just in case - should I send her with the mount as well since these two are a match made in heaven :love2:

[Placidus]

Wonderful colour and a beautiful natural look in the core detail.

[DJT]

Lovely image Suavi. Darker sites really help.
:thumbsup:

[Andy01]

Nice job Suavi, good tonal range & details. :)
Personally I think this is a very ugly galaxy, but that being said, you have rendered it well!
:thumbsup:

[RickS]

An excellent first(?) LRGB image from you, Suavi!

[Slawomir]

Thank you all for your very kind feedback.

Skies are really much better here in Prossy, at least when it comes to absence of light pollution. I could not see any dust donuts nor gradients even in 10min Luminance subs, so I probably could get away with not using flats at all. Flats were a definite must in Paddy in Brisvegas and it was often quite a challenge, even with narrowband imaging, to remove all artefacts.

The first night (of the two) was quite warm too - temp was still around 24C for the bulk of the imaging session on the first night.

Fingers crossed stars shapes will be better in the next image.

[cometcatcher]

Nice one Suavi! What are you doing in Proserpine?