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Clear Sky Charts (called clocks until February 29, 2008) are web graphics which deliver weather forecasts designed specifically for astronomers. They forecast the cloud cover , transparency and astronomical seeing , parameters which are not forecast by civil or aviation forecasts. [ 1 ]
Chamberlin Observatory is an astronomical observatory owned and operated by the University of Denver.It is located in Denver, Colorado (US) in Observatory Park.It is named for Humphrey B. Chamberlin, a Denver real estate magnate who pledged $50,000 in 1888 to build and equip the facility.
1962 — A.S. Bennett of the Cambridge Radio Astronomy Group publishes the Revised 3C Catalogue of 328 radio sources; 1965 — Gerry Neugebauer and Robert Leighton begin a 2.2 micrometre sky survey with a 1.6-meter telescope on Mount Wilson; 1982 — IRAS space observatory completes an all-sky mid-infrared survey
The Atlas Coeli covers both hemispheres with 16 charts. The coordinate system is referred to equinox 1950.0 and the scale is 1° = 0.75 cm. There are six charts of the equatorial regions on a rectangular graticule, covering declinations from +25° to -25°; four charts for each hemisphere with straight, converging hour circles and concentric, equally-spaced declination circles covering ...
In Muslim astronomy, the first star chart to be drawn accurately was most likely the illustrations produced by the Persian astronomer Abd al-Rahman al-Sufi in his 964 work titled Book of Fixed Stars. This book was an update of parts VII.5 and VIII.1 of the 2nd century Almagest star catalogue by Ptolemy. The work of al-Sufi contained ...
A sky chart showing the location of Comet C/2022 E3 (ZTF) throughout January. (NASA) The easiest time to see the comet will be during the second weekend of February as it passes incredibly close ...
In astronomy and celestial navigation, an ephemeris (/ ɪ ˈ f ɛ m ər ɪ s /; pl. ephemerides / ˌ ɛ f ə ˈ m ɛr ɪ ˌ d iː z /; from Latin ephemeris 'diary', from Ancient Greek ἐφημερίς (ephēmerís) 'diary, journal') [1] [2] [3] is a book with tables that gives the trajectory of naturally occurring astronomical objects and artificial satellites in the sky, i.e., the position ...
A blazingly bright event known as a nova, a light show that happens approximately once every 80 years, is expected to be visible in the coming months -- an event more rare than a total solar eclipse.