Star Test of a 400 mm telescope

Here is the star test of a 400 mm telescope. The movie has been capture using a Canon Powershot 60 hand held in front of the eyepiece, while turning the focuser with the other hand!! There is a little bit of miscollimation and the mirror is not perfectly cooled (there are signs of convective cells). The star is Vega.

Category:

Science & Technology

Tags:

• astronomy
• telescopes

[JackeShanTwo]

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

[AstronomyOnline]

No, a out of focus star.

[flashjacksonbrown]

@n3iljay3 yeah =)

[flashjacksonbrown]

@n3iljay3 yeah no its not its a mirror

[Electron64]

@n3iljay3 its actulle the seconday mirror from the telescope

[n3iljay3]

@JackeShanTwo Ohhh thanks for the reply!

[n3iljay3]

The center of the star is the actual star itself

[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?

[24kojiful]

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