a primary mirror is the main mirror
It does, a little. But the amount of light lost by the secondary mirror blocking the primary mirror is generally a small percentage. But to avoid even that loss, some reflecting telescopes are being built with an angled primary mirror. The secondary mirror is off-axis, meaning that the secondary mirror doesn't block ANY light from the primary.
A reflecting telescope has both an eyepiece lens and a mirror. Light enters the telescope and is reflected off the primary mirror to a secondary mirror, which then directs the light to the eyepiece where it is magnified for viewing.
The Newtonian reflector has a convex primary mirror and a flat secondary mirror with the eyepiece located on the top side of the telescope tube.
No - HSTs' primary mirror is a Cassegrain Reflector of Ritchey-Chrétien design, which contains a hyperbolic primary/secondary mirror.
Eyepiece, Primary Mirror, Secondary Mirror, Prime Focus.
The name of this type of instrument is derived from the fact that the primary mirror reflects the light back to a focus instead of refracting it. The primary mirror usually has a concave spherical or parabolic shape, and, as it reflects the light, it inverts the image at the focal plane.
To find the aperture of a reflecting telescope, you would measure the diameter of the primary mirror. The aperture of a telescope is the diameter of its primary light-gathering element, which in the case of a reflecting telescope, is the primary mirror.
7
are you doing your science homework?
Yes, both have to do with the diameter of the objective mirror/lens
Laurent Cassegrain, a French priest and astronomer, invented the Cassegrain telescope in the mid-17th century. The design features a concave primary mirror with a secondary convex mirror, allowing light to be reflected back through a hole in the primary mirror for viewing.
No, it isn't. The Hubble Space Telescope is a reflector. It has a primary mirror, and not a primary lens.