The cameras capture subexposures or 'subs'. Typically from 1 to 10 minutes per exposure and software stacks these subs together into one image. There's more to it than that, but that's the basics of it.
October 5, 2026 at 8:31 PM
The cameras capture subexposures or 'subs'. Typically from 1 to 10 minutes per exposure and software stacks these subs together into one image. There's more to it than that, but that's the basics of it.
Hi, thanks. Astrophotographers sit their telescopes on tracking mounts which can be set to sidereal rate for deepsky imaging, or solar, lunar, comet rate, etc. They move against the rotation of the earth to keep the object 'still' in the field of view.
October 5, 2026 at 8:30 PM
Hi, thanks. Astrophotographers sit their telescopes on tracking mounts which can be set to sidereal rate for deepsky imaging, or solar, lunar, comet rate, etc. They move against the rotation of the earth to keep the object 'still' in the field of view.
Agreed. Their "percentage chance" method is hugely misunderstood. I prefer visual map based forecasts
But none of them are that reliable, despite their multi million £supercomputers. Take it from a cloud-frustrated astrophotographer who religiously studies multiple forecasting apps daily.
But none of them are that reliable, despite their multi million £supercomputers. Take it from a cloud-frustrated astrophotographer who religiously studies multiple forecasting apps daily.
August 28, 2026 at 10:15 PM
Agreed. Their "percentage chance" method is hugely misunderstood. I prefer visual map based forecasts
But none of them are that reliable, despite their multi million £supercomputers. Take it from a cloud-frustrated astrophotographer who religiously studies multiple forecasting apps daily.
But none of them are that reliable, despite their multi million £supercomputers. Take it from a cloud-frustrated astrophotographer who religiously studies multiple forecasting apps daily.
Fake news. Literally.
August 16, 2026 at 8:28 AM
Fake news. Literally.
If you drove that wouldn't happen😜
April 20, 2026 at 4:46 PM
If you drove that wouldn't happen😜
I've recently got into SLR narro band astrophotography. As usual I do things in the opposite order from most folk. I started out with full sized scopes and only years later am discovering the joy of widefield 'normal' camera images.
April 12, 2026 at 9:41 PM
I've recently got into SLR narro band astrophotography. As usual I do things in the opposite order from most folk. I started out with full sized scopes and only years later am discovering the joy of widefield 'normal' camera images.
I don't remember there being 3 'm's in accommodation 🤔😜
March 18, 2026 at 2:22 PM
I don't remember there being 3 'm's in accommodation 🤔😜
I wondered who had all our planets. Us northern hemispherians will be coming for them so enjoy them whilst you can!
February 24, 2026 at 10:53 AM
I wondered who had all our planets. Us northern hemispherians will be coming for them so enjoy them whilst you can!
Well they do say that youth is wasted on the young. The world would probably be a far better place if we had all the wisdom and maturity when we were teenagers and only gradually became surly wankers in our final decade or so.
February 22, 2026 at 3:11 PM
Well they do say that youth is wasted on the young. The world would probably be a far better place if we had all the wisdom and maturity when we were teenagers and only gradually became surly wankers in our final decade or so.
Less is more with an omelette. Once the mixture is in the pan, just leave it alone! If you're a confident flipper and the pan is properly non-stick you can turn it that way. If you're a mere mortal, just stick it under the grill to cook the top.
February 8, 2026 at 5:43 PM
Less is more with an omelette. Once the mixture is in the pan, just leave it alone! If you're a confident flipper and the pan is properly non-stick you can turn it that way. If you're a mere mortal, just stick it under the grill to cook the top.
No sign of any major changes to this stuck weather pattern for the next couple of weeks either.
January 29, 2026 at 9:15 AM
No sign of any major changes to this stuck weather pattern for the next couple of weeks either.
Best news I've heard in a while. The moron wants to take on his gun toting base act and expects that to turn out well 😄
January 28, 2026 at 11:15 AM
Best news I've heard in a while. The moron wants to take on his gun toting base act and expects that to turn out well 😄
Electric chair. Nothing else is good enough for them.
January 28, 2026 at 11:13 AM
Electric chair. Nothing else is good enough for them.
Dang, well that's me convinced. If anyone's looking for me I'll be outside ripping my telescopes apart looking for the NASA image receiver.
January 26, 2026 at 3:51 PM
Dang, well that's me convinced. If anyone's looking for me I'll be outside ripping my telescopes apart looking for the NASA image receiver.
Good enough for polar alignment of wide field scopes. Long focal length ones, less so..
September 15, 2025 at 4:28 PM
Good enough for polar alignment of wide field scopes. Long focal length ones, less so..
To be fair, velcro and zip ties are pretty secure. Certainly more secure than 'push fit ' designs that rely on a single small thumb screw to keep equipment away from a terminal velocity meeting the concrete below.
September 15, 2025 at 4:25 PM
To be fair, velcro and zip ties are pretty secure. Certainly more secure than 'push fit ' designs that rely on a single small thumb screw to keep equipment away from a terminal velocity meeting the concrete below.
Aye these are the stresses and strains of being ultra rich that us poor folk just never think about. Won't someone please think about the poor millbillionaires?!
July 8, 2025 at 4:21 PM
Aye these are the stresses and strains of being ultra rich that us poor folk just never think about. Won't someone please think about the poor millbillionaires?!
Technically most millionaires were at some point in time, 3 months away from becoming billionaires, but I'm splitting heirs.
July 7, 2025 at 8:38 AM
Technically most millionaires were at some point in time, 3 months away from becoming billionaires, but I'm splitting heirs.
As for the Linn.. I'll need to dig through a cupboard to find it. I'll call once I'm ready to get both to you. Good to know where I can take them.
May 9, 2025 at 9:46 AM
As for the Linn.. I'll need to dig through a cupboard to find it. I'll call once I'm ready to get both to you. Good to know where I can take them.