Star Test of a 400 mm telescope

[n3iljay3]

The center of the star is the actual star itself

[JackeShanTwo]

@n3iljay3 It's the secondary mirror of the telescope.

[n3iljay3]

@JackeShanTwo Ohhh thanks for the reply!

[Electron64]

@n3iljay3 its actulle the seconday mirror from the telescope

[flashjacksonbrown]

@n3iljay3 yeah =)

[flashjacksonbrown]

@n3iljay3 yeah no its not its a mirror

[herbal1971]

Jodie Foster went there in the film, Contact.

[Thnsky]

so stars r like doughnuts... impressive

[TeamStephenson]

isn't the bit where it is really bright and large with a circle just where its very out of focus?

[thecaliforniazephyr]

wonderful!

[24kojiful]

so thats what a stars like. woah!!

[masegta1]

a star is a sun just like our sun, all with the possibility of other planets orbiting them, incase u didnt know

[24kojiful]

@masegta1 well, i already know that. anyway thanks.

[sportchickyeah]

ok so I have just got a new telescope :D yay!!! I havent used it yet because I need to order a eyepeace. Now just looking at this, I think its pretty cool to be able to see the stars like that, will I be able to see them like that also? I have a tasco 450 power 900 mm reflector telescope :) thank you!!

[Goalatio]

@sportchickyeah What do you mean by 450 power? If you mean magnification, then your telescope will not be able to get that high.. my 1000mm is lucky to get 200x magnification on a crystal clear night (5" aperture).. How many inches of aperture does your scope have? A way to find out your max magnification *Before quality degrades rapidly* is focal length/aperture (in my case, 1000/5 = 200).

[Basard100]

@Goalatio according to that formula, a 1" aperture scope, with 1000mm focal length, would give you 1000x magnification.

to find max theoretical magnification, multiply aperture (in inches) by 100.

to find max USEFUL magnification, multiply aperture (in inches) by 50 or so. some say different.

I've gone up beyond 600x with my 11" sct (with a stable atmosphere) the image is bigger, but not much better than viewing at 200x.

[vwlover94]

looks like an ameeba lol

[xXRACERXx88]

I have a vivitar 60x 120x scope and I looked at a star and it looked like a giant white ball.

[punfete]

it seems to me a really poor quality mirror. No diffraction disks?

[Basard100]

@punfete maybe baad seeing, tube currents, low magnification, use of a handheld camera... star is too bright maybe also....

hard to catch them on camera like that, unless the atmosphere between you and the star is perfectly stable...

[pufixas]

why cant you see a star through a telescope? you can see a saturn, moon, venus..... but no stars... why?

[Basard100]

@pufixas what do you mean dude, this is a star, can't you see it... :P stars are way too far away to see their surfaces, they are just pinpoints of light.

you could look at the sun, it's a star, and it's pretty cool.

[deneve3]

i think thats a cool mentos.

[ngc7320A]

Good video. Also shows the scope had bad tube currents. The mirror was still warm. Judging by how slow the tube-current cells were moving, i'd guess the scope was a schmidt-cassegrain.

[AchromaticRefractor]

@ngc7320A Nah, there's diffraction spikes visible, so It's probably just a big ole' Newtonian. Plus there's not that many 16 inch SCT's around.

[rastamaniakTHC]

right

[1234qwerty09]

thats cool !!

[Chrisjr2007]

yup a star!

[NinjaKid3000]

what is that?? a active nebula?

[AstronomyOnline]

No, a out of focus star.