What is the aperture of the Hubble Space Telescope?

What is the aperture of the Hubble Space Telescope?

Hubble’s eye, a 10-foot-wide aluminum aperture, blinked open on May 20, bringing light from the edge of the universe to the telescope’s finely polished primary mirror.

How does the Hubble telescope orient itself?

Hubble has blanket of multilayered insulation, which protects the telescope from temperature extremes. Hubble uses a combination of gyroscopes, reaction wheels and Fine Guidance Sensors to orient itself.

How is Hubble telescope controlled?

The Magnetic Sensing System acts as Hubble’s compass, measuring the telescope’s orientation in relation to Earth’s magnetic field. When Hubble rotates, its gyroscopes measure the direction the telescope is turning and the rate of that rotation. Hubble has some of the most accurate and stable gyroscopes ever built.

What advantage does the Hubble telescope have over instruments based on the ground?

Hubble images are 5 to 20 times sharper than those obtained from the ground, in effect bringing the universe that much “closer” (Figure 3.2). Image sharpness and the extremely dark sky help Hubble to see objects 10 times fainter than those that can be observed with even the largest ground-based telescopes.

How powerful does a telescope have to be to see the rings of Saturn?

The rings of Saturn should be visible in even the smallest telescope at 25x [magnified by 25 times]. A good 3-inch scope at 50x [magnified by 50 times] can show them as a separate structure detached on all sides from the ball of the planet.

What is the best eyepiece to view planets?

List Of The Best Telescope Eyepieces

1. Orion 1.25-Inch Premium Telescope Accessory Kit. Best Planetary Eyepieces Kit.
2. Celestron 8-24mm 1.25″ Zoom Eyepiece. Best Zoom Eyepiece.
3. SVBONY Telescope Eyepieces.
4. Tele Vue 13mm Ethos 2”/1.25” Eyepiece with 100 Degree Field of View.
5. Celestron T Adapter/Barlow 1.25 Universal.