kirkster501

http://sciencenetlinks.com/tools/scale-universe-2/

People think of the Universe as what it looks like from the “outside”, like looking at an expanding ballon, which is fundamentally incorrect. There is no outside and the Big Bang happened everywhere and is expanding everywhere.

Is everything screw fit? If so I do not think you have an issue here on that focuser, like others have said.

Well done. We've had nothing but cloud and full moons since September here in Nott's.

I agree with the original poster. There are things we may not understand for another 1000 years. I also think it’s quite an arrogant assumption to say that the same universal laws apply everywhere, despite current observations. Maybe some do and others don’t. We may find eventually that this is incorrect.

The Turtle is a good one!

In this online world, I am no longer fully reading the magazine Astronomy Now that I subscribe to, good that it is. I am going to cancel the subscription since, as others have said, I can learn more of what is important to me online at places like SGL. Magazines have lost their relevance to me now, even online ones. I prefer quick snippets of information now.

It is liveable with and in any event, we just have to get on with it the best we can, whatever the skies. Bortle 4-5 where I am. Out your way, Orston etc, it is much better and drops to about 3. I sometimes head out that way to some fields between you and Bottesford for the dark skies if I want to be observing very faint stuff.

Hi Kevin, I'm in Saxondale, just down the road

Very nice. You've over clipped the background though, I imagine to try and get rid of the gradients the moon caused..... Same as in UK, just recently we only seem to get clear nights when The Moon is beating down!

A superb image with fabulous detail.

I have this issue too on very bright stars. I need to tinker with the OAG prism. Remember you'll need to refocus the guidecam if you move the distance of the prism.

Yes, a 6" aperture and 3C273 is observable. Done so myself with the Dob. It is quite amazing to think the light has travelled for 2.5billion years prior to it hitting the back of my retina.

3C273 at 2.5 billion light years is a very easy object to image too. Quite easy to see as well with a reasonable size scope. https://skastro.net/quasar-3c273-in-virgo/ (website in development btw) Back on topic, definitely one for Spring/Summer skies permitting.

It's on my to do list when Ursa Major is a bit higher in the sky in Spring.

Ahh, ok. So if the camera and its compulsory adapter consume 23.5 and also the Canon adapter takes up 10 that I have to make up that 44 -(23.5+10) ? If so that leaves 10.5mm??? I think some OAG can be as thin as that.... Interestingly - same concept with my Samyang 135mm on my Moravian G2-8300, I just used the Moravian Canon adapter and never bothered with any spacers. Field seems quite good except in the extreme corners. I'd had put that down to the lens not being a perfect one. Maybe my spacings aren't correct.

Hi all, Bought a Canon adapter for my QHY268C to connect to my Canon-fit Samyang 135mm. I also have a nice 50mm Sigma Art. Not tried that camera yet on those lenses due to clouds, clouds, clouds (and when they're not there, moon, moon, moon....🙈). What is the effect on a camera lens focusing if other bits such as an OAG are installed between the lens and the sensor - which will obviously push the camera sensor further backwards from the lens' prime focus point...? Never tried this with a camera lens before. Would it focus? Would it change the effective FL ? Thanks, Steve

I was looking for ready made adapters that turns the Fuji mount lenses into a T thread, M56 or something like that. I can’t find anything though.

Very nice Dave. Well done.

Hi all, I have some very nice - and expensive - Fuji prime lenses. Is there a way to get these to connect to my QHY camera please ? thanks, Steve

APP is more automated. It is a good tool but has nothing like the power of PI - in my opinion. PI is not that hard to use, there is a simple workflow and you just have to learn a few tools.

Brush off the rough muck with a camel hair brush and then clean them in a sink of luke-warm water with a few drops of washing up liquid and my fingers. Final rinse in RO water and dry them off with a fresh 100% cotton wool ball (for each touch on the surface = new cotton wool ball). There is no rocket science involved.

Masterful. A wonderful image, you can get lost in it....

You posted a wonderful NAN and Pelican for us to view and enjoy. My counsel is not to be obsessive about it Phil with this guidance.

Super stuff. I am thinking of connecting my QHY268C to the Samyang 135. I am also very tempted, bonus permitting of getting a Sigma Art 105mm F1.4.