occulting
11Oc. — • occulting …
12Occultation — See also: Occult (disambiguation) In this July 1997 still frame captured from video, the bright star Aldebaran has just reappeared on the dark limb of the waning crescent moon in this predawn occultation. An occultation is an event that occurs… …
13Chord (astronomy) — In the field of astronomy the term chord typically refers to a line crossing an object which is formed during an occultation event. By taking accurate measurements of the start and end times of the event, in conjunction with the known location of …
14Eclipse — An eclipse is an astronomical event that occurs when one celestial object moves into the shadow of another. The term is derived from the ancient Greek noun gr. ἔκλειψις ( gr. ékleipsis ), from verb gr. ἐκλείπω ( gr. ekleípō ), I cease to exist, a …
15Light characteristic — Symbols and abbreviations for light characteristics A light characteristic is a graphic and text description of a navigational light sequence or colour displayed on a nautical chart or in a Light List with the chart symbol for a lighthouse,… …
16Umbra — For other uses of the word umbra , see Umbra (disambiguation). For other uses of the word penumbra , see Penumbra (disambiguation). The umbra, penumbra and antumbra are the names given to the three distinct parts of a shadow which are created… …
17Fort Canning Lighthouse — Infobox lighthouse|name=Fort Canning Lighthouse location=Fort Canning Hill, Singapore image size=150px caption= coordinates = yearlit=1903 yeardeactivated=1958 automated=No intensity=White and Red 20,000 cd elevation=36.3 metres range=18 nautical …
18lighthouse — /luyt hows /, n., pl. lighthouses / how ziz/. 1. a tower or other structure displaying or flashing a very bright light for the guidance of ships in avoiding dangerous areas, in following certain routes, etc. 2. either of two cylindrical metal… …
19Coronagraph — A coronagraph is a telescopic attachment designed to block out the direct light from a star so that nearby objects – which otherwise would be hidden in the star s bright glare – can be resolved. Most coronagraphs are intended to view the corona… …
20Stepping Stones Light — Infobox Lighthouse caption = Stepping Stones Light location = Long Island Sound, in Nassau County, New York. Marks outer end of reef coordinates = coord|40|49|28|N|73|46|29|W|region:US type:landmark yearlit = 1877 automated = 1967 yeardeactivated …
