A Sextant is an instrument used to measure the angle between any two visible object and a Telescope is an instrument that aids in the observation of remote object by collecting electromagnetic radiation.
By Artem Leo T. Delfin
Pob. Sawang Loboc, Bohol
A sextant would be a type of astrolabe. It has a sighting mechanism that is a small telescope. It does not have a compass in it.
The primary tools used in early astronomy were a compass to measure directions, a sextant (or octant) to measure angles in the sky, a watch and a telescope.
In his early career: No telescopes. A log to track planets. Sea-faring devices such as the sextant Later in life: In 1609 Galileo started using the telescope on the 'heavens' Kepler used the Galilean telescope until 1611 he re-invented the refracting telescope (now known as the Keplerian telescope)
you can find sextant on history.com
you use a sextant to navigate.
Four very important instruments are the Human Mind, Mathematics, telescopes like the Hubble and Spectrum Analyzers.
The telescope named Hubble
you draw a sextant by looking at googler in the images.
A reflecting telescope is different from a refracting telescope because a reflecting telescope uses a concave lens, a plane mirror, and a convex lens. While a refracting telescope uses two lens.
A radio telescope detects light in the form of radio waves and a refracting telescope detects light in the visible wavelengths
the sextant helped me navagate my way to alaska
Different telescopes utilize different parts of the electromagnetic spectrum. Two types of optical telescope are refracting and reflecting. There are also different kinds of radio telescope investigating different bandwidths from the infra red to the untra violet