Search results
Results from the WOW.Com Content Network
The list also includes a final year of operation for many observatories that are no longer in operation. While other sciences, such as volcanology and meteorology , also use facilities called observatories for research and observations, this list is limited to observatories that are used to observe celestial objects.
An astronomical instrument is a device for observing, measuring, or recording astronomical data. [ citation needed ] They are used in the scientific field of astronomy , a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
Conversely, TowerBells.org – a database of tower bells of all types – defines a "non-traditional" carillon, which is an instrument that has had some component electrified or computerized. [5] These instruments fail to meet the definitions of a carillon defined by the associations of carillonneurs mentioned above. This list contains only ...
The days are short and the nights are long. That can only mean one thing: The winter solstice is coming. The first day of winter for the northern hemisphere of Earth will begin on Dec. 21 at ...
Approximate locations of sunset on the horizon as described above can be found in Refs. [ 8 ] [ 9 ] The figure on the right is calculated using the solar geometry routine as follows: [ 10 ] For a given latitude and a given date, calculate the declination of the Sun using 0 ∘ {\displaystyle 0^{\circ }} longitude and solar noon time as inputs ...
Name: Lifespan: Country of work : George N. Saegmuller: 1847–1934 US Bernhard Schmidt: 1879–1935 Germany Ibn al-Shatir: 1304–1375 Syria: James Short: 1710–1768
Trackers worldwide can also call 1-877-HI-NORAD (1-877-446-6723) on Dec. 24 to ask live operators about Santa's location from 6 a.m. to midnight MST. When does Google's Santa tracker go live ...
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It includes planetary probes, solar probes, and probes to asteroids and comets, but excludes lunar missions, which are listed separately at List of lunar probes and List of Apollo missions.