Dusk (redirect from Astronomical dusk)
Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before nightfall. At predusk, during early...
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Twilight (redirect from Astronomical twilight)
during the stage of nautical twilight when they can distinguish a visible horizon for reference (i.e. after astronomic dawn or before astronomic dusk). Under...
33 KB (3,872 words) - 19:07, 4 September 2024
The Strasbourg astronomical clock is located in the Cathédrale Notre-Dame of Strasbourg, Alsace, France. It is the third clock on that spot and dates from...
11 KB (1,308 words) - 00:49, 26 August 2024
Astronomy (redirect from Astronomical)
Observational astronomy is focused on acquiring data from observations of astronomical objects. This data is then analyzed using basic principles of physics...
98 KB (10,186 words) - 18:32, 1 September 2024
Marine isotope stages (MIS), marine oxygen-isotope stages, or oxygen isotope stages (OIS), are alternating warm and cool periods in the Earth's paleoclimate...
17 KB (2,215 words) - 15:18, 23 June 2024
Engineering on an astronomical scale, or astronomical engineering, i.e., engineering involving operations with whole astronomical objects (planets, stars...
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Year (redirect from Astronomical year)
A year is the time taken for astronomical objects to complete one orbit. For example, a year on Earth is the time taken for Earth to revolve around the...
51 KB (5,661 words) - 22:06, 17 August 2024
Dawn (redirect from Astronomical Dawn)
(degrees below the horizon) in the morning. These are astronomical, nautical and civil twilight. Astronomical dawn begins when the center of the Sun is 18 degrees...
13 KB (1,544 words) - 22:18, 26 July 2024
Polar night (redirect from Astronomical polar night)
typical day during polar night in Vadsø, Norway will begin with astronomical night, astronomical twilight, nautical twilight, and civil twilight in that order...
16 KB (2,172 words) - 16:07, 10 August 2024
The Islamic Astronomical Bureau was a government agency of Imperial China established in 1271 during the reign of Yuan Emperor Kublai Khan. The bureau...
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Space art (redirect from Astronomical art)
Space art, also known as astronomical art, is a genre that visually represents the universe through various artistic styles, or sends artworks into space...
29 KB (3,344 words) - 04:36, 3 September 2024
Subhash Kak (redirect from The Astronomical Code of the Rigveda)
International Council on Monuments and Sites (ICOMOS) and the International Astronomical Union (IAU). While Kak's interpretation has been included in recent overviews...
28 KB (2,796 words) - 10:52, 21 April 2024
In astronomy, a transit (or astronomical transit) is the passage of a celestial body directly between a larger body and the observer. As viewed from a...
16 KB (1,927 words) - 11:37, 23 August 2024
stars. Originally, the term "nebula" was used to describe any diffused astronomical object, including galaxies beyond the Milky Way. The Andromeda Galaxy...
21 KB (2,865 words) - 17:14, 31 August 2024
A list of future observable astronomical events. These are by no means all events, but only the notable or rare ones. In particular, it does not include...
100 KB (4,231 words) - 23:35, 4 August 2024
Night (redirect from Astronomical night)
birds experience multiple stages of sleep visible via electroencephalography. The stages of sleep are wakefulness, three stages of non-rapid eye movement...
70 KB (7,859 words) - 19:47, 5 September 2024
Astrophysical maser (redirect from Astronomical maser)
detection due to the limited sensitivity, and relative remoteness, of astronomical observatories and due to the sometimes overwhelming spectral absorption...
31 KB (3,823 words) - 00:36, 27 August 2024
in one theoretical stage by correspondence. The languages of the Olympiad are English and Russian. Russian Open School Astronomical Olympiad by Correspondence...
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Demonstration". Bulletin of the American Astronomical Society. 38. 2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, id.58.06: 972. Bibcode:2006AAS...
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disappearance of the Sun below the horizon of the Earth (or any other astronomical object in the Solar System) due to its rotation. As viewed from everywhere...
20 KB (2,408 words) - 12:37, 24 August 2024
T Coronae Borealis (category Astronomical objects discovered in 1866)
Spectroscopy of Symbiotic Stars. I. Orbits for Well-Known S-Type Systems". The Astronomical Journal. 119 (3): 1375. Bibcode:2000AJ....119.1375F. doi:10.1086/301260...
19 KB (1,804 words) - 12:56, 5 September 2024
Easter (redirect from Astronomical easter)
not an astronomical full moon, but the 14th day of a lunar month. Another difference is that the astronomical equinox is a natural astronomical phenomenon...
116 KB (11,650 words) - 16:54, 3 June 2024
Tide (redirect from Astronomical tide)
levels can be defined, from the highest level to the lowest: Highest astronomical tide (HAT) – The highest tide which can be predicted to occur. Note that...
109 KB (13,080 words) - 01:26, 22 August 2024
The Orbiting Astronomical Observatory (OAO) satellites were a series of four American space observatories launched by NASA between 1966 and 1972, managed...
7 KB (741 words) - 23:15, 18 August 2024
potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later...
60 KB (6,338 words) - 12:30, 31 August 2024
Failed supernova (category Astronomical events)
A failed supernova is an astronomical event in time domain astronomy in which a star suddenly brightens as in the early stage of a supernova, but then...
5 KB (435 words) - 21:13, 17 July 2024
Milankovitch cycles (redirect from Astronomical theory of paleoclimates)
with eccentricity is that proximity to the Sun occurs during different astronomical seasons. Milankovitch studied changes in these movements of the Earth...
49 KB (5,223 words) - 10:23, 29 July 2024
Phanerozoic eonothem into internationally accepted stages using two types of benchmark. For younger stages, a Global Boundary Stratotype Section and Point...
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IRAS (redirect from Infrared Astronomical Satellite)
The Infrared Astronomical Satellite (Dutch: Infrarood Astronomische Satelliet) (IRAS) was the first space telescope to perform a survey of the entire night...
18 KB (1,525 words) - 16:11, 29 August 2024
astronomical object is a meteorological optical phenomenon, in which light rays are bent to produce distorted or multiple images of an astronomical object...
22 KB (2,732 words) - 21:48, 17 July 2024