Great video! Thank you. Things everybody should know or consider. (e.g. I always wonder why some people recommend to focus in the daytime... -> moving parts due to thermal exchange..-> focal change.) Clear skies! 👍🏼
@@RefreshingViews I am confident you'll find something to show. ;-) In addition, maybe two points (maybe you already covered that): Did you ever test a methane filter on Jupiter and Saturn? And maybe you can explain why you decided to buy exactly this (big) telescope. - CS
Hi Sunil - this is to stop tube currents as the telescope tube cools at night. Without it, the telescope is radiating heat away to the cold of outer space which leads to cold air flowing down, inside the telescope into the light path.
Great video! Thank you. Things everybody should know or consider. (e.g. I always wonder why some people recommend to focus in the daytime... -> moving parts due to thermal exchange..-> focal change.)
Clear skies! 👍🏼
I guess it’s easier to focus by day (assuming you can see to infinity) but you’re right, a warm scope will contract when it cools at night.
You've got a new subscriber, by the way. 😄
Awesome Tully - thanks. Is there anything else you want me to cover?
@@RefreshingViews I am confident you'll find something to show. ;-) In addition, maybe two points (maybe you already covered that): Did you ever test a methane filter on Jupiter and Saturn? And maybe you can explain why you decided to buy exactly this (big) telescope. - CS
..-889nm pass filter...
Great tips!
Thanks!
Way you caver your telescope in some kind of shild
Hi Sunil - this is to stop tube currents as the telescope tube cools at night. Without it, the telescope is radiating heat away to the cold of outer space which leads to cold air flowing down, inside the telescope into the light path.
Thanks for your interesting and important information👍👍👍👍👍👍