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Astro-Physics, Inc. is a manufacturer of amateur telescopes, mounts, and accessories. Founded in 1975 by former Sundstrand Corporation engineer Roland Christen, [1] the company is noted for its line of apochromatic refractors as well as high-end mounts. [2] [3] [4] The company is located in Machesney Park, Illinois. [1]
GoTo mounts are pre-aligned before use. When it is powered on, it may ask for the user's latitude, longitude, time, and date. It can also get this data from a GPS receiver connected to the telescope or built into the telescope mount itself, and the mount controller can have its own real time clock.
Mount Burnett Observatory: 1972 Mount Burnett, Victoria, Australia Mount Cuba Astronomical Observatory: Greenville, Delaware, US Mount Graham International Observatory: 1993 Mount Graham, Arizona, US Mount John University Observatory: 1965 Lake Tekapo, South Island, New Zealand Mount Laguna Observatory: 1968 San Diego, California, US Mount ...
A large German equatorial mount on the Forststernwarte Jena 50cm Cassegrain reflector telescope. An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis, called polar axis, parallel to the Earth's axis of rotation. [1] [2] This type of mount is used for astronomical telescopes and cameras.
Old Perth Observatory, Mount Eliza, Western Australia Perth Observatory, Bickley, Western Australia. Used for public education and outreach 33 cm (13") 3.34 m 1897 Designed and built by Howard Grubb & Co. Relocated to Bickley ~1966. The original telescope (both camera and guide scopes), mount and dome were re-erected at Bickley Fitz-Clark Refractor
RLOF – (astrophysics terminology) Roche Lobe Overflow, the result of when an object in a binary system is larger than its roche lobe (i.e. when an object in a binary system expands to a radius where tidal forces become stronger than gravitational forces) RLQ – (celestial object) radio loud quasar, a quasar that produces strong radio emission
Alt-alt mounts, or altitude-altitude mounts, are designs similar to horizontal equatorial yoke mounts or Cardan suspension gimbals. This mount is an alternative to the altazimuth mount that has the advantage of not having a blind spot near the zenith, and for objects near the celestial equator the field rotation is minimized. [7]
An altazimuth mount or alt-azimuth mount is a simple two-axis mount for supporting and rotating an instrument about two perpendicular axes – one vertical and the other horizontal. Rotation about the vertical axis varies the azimuth (compass bearing) of the pointing direction of the instrument.