|
Methone (other) , a 19 year cycle of lunar event
{{disamb ...
Methone (Greek: ) may refer to: * ''Methone'' (butterfly), a monotypic genus of metalmark butterflies * Methone (moon), a small moon of Saturn, discovered in 2004 * Methone (Greek myth), one of the Alkyonides, daughters of the giant Alkyoneus * Dimedone, an organic molecule Geography *Methana, also known as Methone, a town in ancient Argolis or modern Attica, Greece *Methone (Messenia), a town in ancient Messenia, Greece ** Methoni, Messenia, the modern town nearby *Methone (Thessaly), a town in ancient Thessaly, Greece *Methone (Thrace), a town in ancient Thrace, Greece **Methoni, Pieria, the modern town nearby See also *Meton of Athens, an ancient Greek astronomer. *Metonic cycle The Metonic cycle or enneadecaeteris (from , from ἐννεακαίδεκα, "nineteen") is a period of almost exactly 19 years after which the lunar phases recur at the same time of the year. The recurrence is not perfect, and by precise obser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (butterfly)
''Methone'' is a genus in the butterfly family Riodinidae present only in the Neotropical realm. Taxonomy The genus ''Methone'' is monotypic. The single species is ''Methone cecilia'' is unmistakably characterized by the conspicuous colouring and the deeply indented margin of the hindwing being continued in the female at the ends of the veins into teeth-like small tails. On the forewing the subcostal is four-branched; the branches 1 and 2 rise before, 3 and 4 behind the cell. The hindwing is without a basal vein. The palpi are extremely short. The colouring resembles that of certain ''Themone'', ''Cartea,'' ''Monethe'', ''Aricoris'' which Mimicry, imitate butterflies such as Ithomiinae and Pericopinae, pericopine moths. The females are very stout and clumsy which makes them still more similar to the unwieldy ''Actinote''. They are quite common but they are local and seem not to leave their birthplace. List of subspecies * ''M. c. cecilia'' present in Suriname and French Guiana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (moon)
Methone is a small, egg-shaped natural satellite of Saturn that orbits out past Saturn's ring system, between the orbits of Mimas and Enceladus. It was discovered in 2004, though it was not until 2012 that it was imaged in detail by the '' Cassini'' spacecraft. History Methone was first discovered by the Cassini Imaging Team and given the temporary designation . Methone is also named (32). The '' Cassini'' spacecraft made two visits to Methone, and its closest approach was made on May 20, 2012 with a minimum distance of from it. The name Methone was approved by the IAU Working Group on Planetary System Nomenclature on January 21, 2005. It was ratified at the IAU General Assembly in 2006. Methone (Greek ''Μεθώνη'') was one of the Alkyonides, the seven beautiful daughters of the Giant Alkyoneus. Orbit Methone's orbit is perturbed by a 14:15 mean-motion resonance with the much larger Mimas. This causes its osculating orbital elements to vary with an amplitude of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (Greek Myth)
In Greek mythology, Methone (Ancient Greek: Μεθώνη) was the name shared by four women: * Methone, one of the Alcyonides, daughters of the Giants (Greek mythology), giant Alcyoneus. She was the sister of Alcippe (mythology), Alkippe, Anthe (mythology), Anthe, Asteria (mythology), Asteria, Drymo (mythology), Drimo, Pallene (mythology), Pallene and Phthonia (mythology), Phthonia (Phosthonia or Chthonia). When their father Alcyoneus was slain by Heracles, these girls threw themselves into the sea from Kanastraion, which is the peak of Kassandra, Chalkidiki, Pellene. They were then transformed into Halcyon (genus), halcyons (Kingfisher, kingfishers) by the goddess Amphitrite. * Methone, the nymph-consort of Pierus of Emathia, Pierus, king of Pieria (regional unit), Pieria, and by the latter, became the mother of Oeagrus, father of Orpheus. In some accounts rather, she was called the sister of Pierus. * Methone or Mothone (Μοθώνη), a bastard daughter of King Oeneus of Calydon b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimedone
Dimedone is an organic compound with the formula . Classified as a cyclic diketone, it is a derivative of 1,3-Cyclohexanedione, 1,3-cyclohexanedione. It is a white solid that is soluble in water, as well as ethanol and methanol. It once was used as a reagent to test for the aldehyde functional group. Synthesis Dimedone is prepared from mesityl oxide and diethyl malonate via a Michael addition reaction. Chemical properties Tautomerism Dimedone is in equilibrium with its tautomer in solution — in a 2:1 keto to enol ratio in chloroform. Crystalline dimedone contains chains of molecules, in the enol form, linked by hydrogen bonds: Reaction with aldehydes Dimedone reacts with aldehydes to give crystalline derivatives, whose melting points can be used to distinguish between aldehydes. : References {{reflist Diketones 3-Hydroxypropenals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methana
Methana (, ) is a town and a former Communities and Municipalities of Greece, municipality on the Peloponnese peninsula, Greece. Since the 2011 local government reform it is part of the municipality Troizinia-Methana, of which it is a municipal unit. The municipal unit has an area of 50.161 km2. Methana is situated on a volcano, volcanic (the Methana Volcano) peninsula, attached to the Peloponnese. Administratively, it belongs to the Attica (region), Attica region. The town (pop. 892 in 2011) is located north of the road connecting to the rest of the Peloponnese and Galatas. The highest point is (Helona Mountain). The municipal unit has a land area of and a population of 1,352 inhabitants at the 2021 census. Subdivisions The municipal unit Methana is subdivided into the following communities (constituent villages in brackets): *Kounoupitsa (Kounoupitsa, Agios Georgios, Agios Nikolaos, Makrylongos, Palaia Loutra) *Kypseli, Methana, Kypseli (Kypseli, Agioi Theodoroi) *Lout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (Messenia)
Methone (, ''Methṓnē'') or Mothone (, ''Mothṓnē'') was a town in the southwestern corner of ancient Messenia. It was an important place in ancient times on account of its excellent harbour and salubrious situation. It is situated at the extreme point of a rocky ridge, which runs into the sea, opposite the island Sapientza, one of the group called in ancient times Oenussae. Off the outer end of the town, is the little insulated rock which Pausanias calls Mothon, and which he describes as forming at once a narrow entrance and a shelter to the harbour of his time: in the 19th century, when visited by William Martin Leake, it was occupied by a tower and lantern, which is connected by a bridge with the fortification of modern Methoni. A mole branched from it, which ran parallel to the eastern wall of the town, and forms a harbour for small vessels, which to Leake seems to be exactly in the position of the ancient port, the entrance into which was probably where the bridge now sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methoni, Messenia
Methoni (), formerly Methone or Modon (), is a village and a former municipality in Messenia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality of Pylos-Nestor, of which it is a municipal unit. The municipal unit has an area of 97.202 km2. Its name may be derived from Mothona, a mythical rock. It is located 11 km south of Pylos and 11 km west of Foinikounta. The municipal unit of Methoni includes the nearby villages of Grizokampos, Foinikounta, Foiniki, Lachanada, Varakes, Kainourgio Chorio, Kamaria, Evangelismos, and the Oinnoussai Islands. The islands are Sapientza, Schiza, and Santa Marina; they form a natural protection for Methoni harbour. Its economy is dominated by tourism, attracted by its beaches (including Tapia, Kokkinia and Kritika) and its historical castle. Subdivisions The municipal unit of Methoni is subdivided into the following communities (constituent villages in brackets): *Methoni (Methoni, Kokkinia, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (Thessaly)
Methone (, ) was an ancient Greek city-state on the Pagasetic Gulf of Magnesia in ancient Thessaly. The town is mentioned by Homer in the Catalogue of Ships in the ''Iliad'' as belonging to Philoctetes. It is also mentioned in the Periplus of Pseudo-Scylax as a city in Magnesia, together with Iolcus Iolcus (; also rendered ''Iolkos'' ; and Ἰαωλκός; ; ) is an ancient city, a modern village and a former municipality in Magnesia, Thessaly, Greece. Since the 2011 local government reform it is part of Volos, of which it is a municipal un ..., Coracae, Spalauthra and Olizon. Some accept that the town's location is on a hill called Nevestiki (), near the current village of Ano Lechonia, where remains of a fortification have been found, but that location has been suggested by others as the site of Coracae. References Ancient Magnesia Populated places in ancient Thessaly Places in the Iliad Cities in ancient Greece Former populated places in Greece Thessalian ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methone (Thrace)
Methone (, ), also called Thracian or Macedonian Methone to distinguish it from numerous other ancient Methones, was a city-state in Ancient Greece, near the city of Pydna and the modern village of Nea Agathoupolis in Pieria. According to Plutarch, Methone was founded as a Greek colony in the year 733/732 BC. Methone gained special importance by the finding of labeled pottery and potsherds. It is one of the oldest testimonies of Greek writing and an important place in the history of Pieria. Location The ancient city of Methone was located on the northeastern shore of the Thermaic Gulf, in the northern Aegean in Greece. It was right on the sea, north of the modern town of Methoni. Due to the deposition of sediments, especially of the river Aliakmonas, the ancient village is now about 500 m distant from the coast. The archaeological remains of the city consist of buildings on the west and east hills and had a harbor. Around 700 BC the city had an area of about 20 hect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Methoni, Pieria
Methoni () is a village and a former municipality in Pieria regional unit, Greece. Since the 2011 local government reform it is part of the municipality Pydna-Kolindros Pydna–Kolindros (, ''Pýdna-Kolindrós'') is a municipality in the Pieria (regional unit), Pieria regional unit, Central Macedonia, Greece. The seat of the municipality is the town Aiginio. The municipality has an area of 339.525 km2. Municipa ..., of which it is a municipal unit. Geography Administrative division The municipal unit of Methoni consists of the communities of Makrygialos, Methoni, Nea Agathoupoli and Palaio Eleftherochori. The seat of the former municipality of Methoni, that ceased to exist after the 2011 local government reform was in Makrygialos. The municipal unit has an area of 34.286 km2, the community 10.321 km2. Population The population of the community of Methoni is 587 people and that of the municipal unit of Methoni is 2,663 people as of 2021. References * External l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meton Of Athens
Meton of Athens (; ''gen''.: Μέτωνος) was a Greek mathematician, astronomer, geometer, and engineer who lived in Athens in the 5th century BC. He is best known for calculations involving the eponymous 19-year Metonic cycle, which he introduced in 432 BC into the lunisolar Attic calendar. Euphronios says that Colonus was Meton's deme. Work The Metonic calendar incorporates knowledge that 19 solar years and 235 lunar months are very nearly of the same duration. Consequently, a given day of a lunar month will often occur on the same day of the solar year as it did 19 years previously. Meton's observations were made in collaboration with Euctemon, about whom nothing else is known. The Greek astronomer Callippus expanded on the work of Meton, proposing what is now called the Callippic cycle. A Callippic cycle runs for 76 years, or four Metonic cycles. Callippus refined the lunisolar calendar, deducting one day from the fourth Metonic cycle in each Callippic cycle (i. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
