Telescopes that follow the design made by Sir Isaac Newton were coined Newtonian and have finding telescopes attached. Study Newtonian telescopes with an observatory director in this free astronomy video.
Expert: Rocky Alvey & Billy Teets
Bio: Rocky Alvey is the assistant director of the Vanderbilt Dyer Observatory and has been involved in astronomy since 1969.
Filmmaker: Dimitri LaBarge
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Nice video.
However, I would recommend aligning the finder scope in daylight at a distant object; such as a chimney on someone’s house
Is it “this particular telescope” or “This telescope in particular” ?
oh thanks michiel, ill take a look
remember to wait for the scope to cool down
Thank you, this was very helpful!
texts are too fast, good i got ears.. =(
Some telescopes come with an extra eyepiece that will set your objects straight. I got a refractor and without the correction piece, I’ll need two extra mirrors to fix the picture. Look for this: “Telescope 1.5x Erecting Eyepiece (1.25″)”. Note that this piece may not be compatible with your telescope. Hope it helps if not allready resolved.
@dirtyd365 Heat waves…. you see them coming off of your car on a hot day…. same thing with your mirror, but you notice them a lot more as you magnify more. They distort the image quite a bit, it’s not terribly noticeable under 100x, though.
PIZZA TIIIIMMMMMMEEEEEEE!!!!!!!!
Thanks Sir
hehe, asthma. Azimuth!
Collimation can change but this very very small so you will not even notive that ;] You can always first cool down the scope then collimate it ;]
My newtonian shows objects upside down for some reason
newtonian dobsonian telescopes! That’s what i call a true champion of it’s kind!!!!
I have an 8 inch Skywatcher Skyliner and i will buy this X’Mas the SynScan system for it so i can take pictures and find objects like galaxies easy! Pretty much excited
He said Azimuth, not asthma….. listen properly.
how much r these any way?
Is it xt8?
@dirtyd365
The mirror surface needs to be very precise. When you go outside, the mirror will be warmer than the air so it starts cooling down. The inside of the mirror takes longer to cool and creates tension in the glass because it expands or contracts according to temperature. You won’t have a good surface until the temperature of the glass is roughly even. Very expensive ceramic mirrors keep this deformation to a minimum. Tube currents are also a cooling problem.
nice house or office.
Thanks for this video it helped me so much!
is there any reason to take off the rear cap (mirror side) when viewing? Or should it stay on?
@rastamaniakTHC,
Does the collimation change when it cooled down? Or does it stay the same “just be carefull do not rush” type of thing?