Tomatobro

Taken with the following equipment. Skywatcher ED72 with 0.8 reducer Skywatcher Star Adventurer GTI ZWO ASI585MC ZWO ASIair Plus 180 x 30 second images dithered every 10 frames

I found my 585 produced sharper images if I had an IR filter in the optical train. taken with an ED72. 180 x 30 second exps

I always go for the Startech industrial hubs. These are powered by a separate power supply. Sometimes can be got for a reasonable price on Ebay. There is a used 4 port 3.0 for £34 available.

I have looked at the data sets available since joining PA but this is the first write up I have seen on what you get for the money. Nice image.

Looking at the exposure time and recording time if yours is GMT then this could be a match as ours is tagged with UTC https://archive.ukmeteors.co.uk/reports/2024/orbits/202404/20240409/20240409_225146.475_UK/index.html

I had a pitch booked but could not justify the risk so decided to stay at home. I guess others have done the same.

Cloudy Nights has a post on this so worth a look search on ASIAIR Plus Speed Test, Planetary Imaging

I can understand this as it can be all a bit confusing. I always do my setup tests in daylight. I aim the scope at the top of a distant tree, set the camera to a very short exposure and see what I get. If the scope is a total unknown back focus wise I improvise something without all the reducers etc just to get an idea of what the measurement is. The cardboard tube from the inside of toilet rolls can be useful for this. It excludes the light and you can slide it in and out watching the monitor till a rough focus position is found then mark it with a pen. Now I can start putting together spacers etc.

Flo confirmed my scope was the first of the long tube versions sold by them.

Here is a photo of my setup. With the rotator, then the reducer, adapter, ZWO mini filter wheel and then the camera the EAF winds the focuser out to 9800 which is about 12 mm of focus tube showning. Hope this helps

Image processing software that looks at your subs, decides they are not up to standard, takes control of your scope, retakes them and wakes you up next morning with a cup of tea and the best picture you have ever seen. Shows you your picture and compares it with the one it took with comments as to where you went wrong. A bit like how the Asiair passes comments on my polar alignment performance the other night. 5000..... Wow

True of everything. But I stand by my basic advice i.e. a good linear PS would be my first choice.

Switched power supplies are small and efficient but poor when dealing with transient loads. Linear power supplies are big and heavy and not very efficient but are good at dealing with transients. Linear power supplies are being phased out (EU directive).

Never in the field of astro photography has one item been loved by so many and disliked by so few.

My allsky has 25 watts of heat going into it and when its switched on in the evening the dome will show a degree of misting some nights. After about an hour its clear. I read somewhere that someone tried reducing the volume of air inside the canister by packing it with high density foam. The idea I think was that as its the air that is holding the moisture then reducing the volume inside with the foam it reduced the amount of water available. I have packed the housing that holds my Unihedron SQM meter and it seems to have worked but have not tried it with my allsky.