is an adc still essential with jupiter

[iwols]

hi all is an adc still essential with jupiter now its higher cheers

[symmetal]

Jupiter is around 39 deg elevation from the UK at the moment, and the chart shows 0.7 arc sec dispersion between red and blue at that elevation. With lucky imaging, your imaging around something like 0.1 arcsec/pixel, so an ADC is still useful if you have one. 🙂

Alan

[Simon128D]

Excellent graph! Thank you. This explains why my adjustments for blue are always more than red. 

[newbie alert]

Christopher go has mentioned above 60 degrees and a ADC isnt needed...  

Not  personally seen Jupiter above 50 in the UK yet

[Zermelo]

1 hour ago, newbie alert said:

Christopher go has mentioned above 60 degrees and a ADC isnt needed...  

Not  personally seen Jupiter above 50 in the UK yet

 

Some info here: https://stargazerslounge.com/topic/287169-altitude-of-the-planets-for-the-next-few-years/

2025 looks good.

 

 

[CraigT82]

Depends on the scope too, the bigger the scope the more the dispersion will be visible in the final image, purely because the final image will be bigger itself. 

An ADC isn’t essential to produce images but if you want to produce the best images you possibly can then use one. 

[Mandy D]

On 15/09/2022 at 15:00, iwols said:

hi all is an adc still essential with jupiter now its higher cheers

I had no idea what an ADC is, other than an Analogue to Digital Converter in electronics, so I checked with Google and found this nice article that explains it all and discusses when you need to use one. I hope it is helpful to you or anyone viewing this thread later.

https://skyinspector.co.uk/atm-dispersion-corrector-adc/