Difference between revisions of "Harpalus"
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| − | [http://lpod.org/coppermine/albums/userpics/Harpalus_LO-IV-158H_LTVT.JPG [[Image: | + | [http://lpod.org/coppermine/albums/userpics/Harpalus_LO-IV-158H_LTVT.JPG [[Image:Normal_Harpalus_LO-IV-158H_LTVT.JPG|external image normal_Harpalus_LO-IV-158H_LTVT.JPG]]]<br /> ''[http://lpod.org/coppermine/displayimage.php?pos=-2518 LO-IV-158H]'' The triangular feature near the bottom margin is a defect in the [[Lunar%20Orbiter|Lunar Orbiter]] on-board development.<br /> <br /> |
==Images== | ==Images== | ||
[http://www.lpod.org/coppermine/thumbnails.php?album=search&type=full&search=Harpalus LPOD Photo Gallery] [http://www.lpi.usra.edu/resources/lunar_orbiter/bin/srch_nam.shtml?Harpalus%7C0 Lunar Orbiter Images]<br /> | [http://www.lpod.org/coppermine/thumbnails.php?album=search&type=full&search=Harpalus LPOD Photo Gallery] [http://www.lpi.usra.edu/resources/lunar_orbiter/bin/srch_nam.shtml?Harpalus%7C0 Lunar Orbiter Images]<br /> | ||
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==Description: Elger== | ==Description: Elger== | ||
| − | ''([[IAU% | + | ''([[IAU%20directions|IAU Directions]])'' HARPALUS.--A conspicuous ring-plain, about 14 miles in diameter, on the N.W. of [[Foucault|Foucault]], with a floor sinking 13,000 feet below the surrounding surface. As the cubic contents of the border and <u>glacis</u> are quite inadequate to account for it, we may ask, what has become of the material which presumably once filled this vast depression? Harpalus has a bright central mountain.<br /> <br /> |
==Description: Wikipedia== | ==Description: Wikipedia== | ||
[http://en.wikipedia.org/wiki/Harpalus_%28crater%29 Harpalus]<br /> <br /> | [http://en.wikipedia.org/wiki/Harpalus_%28crater%29 Harpalus]<br /> <br /> | ||
==Additional Information== | ==Additional Information== | ||
| − | * Depth data from [[Kurt%20Fisher% | + | * Depth data from [[Kurt%20Fisher%20Crater%20Depths|Kurt Fisher database]] |
** Westfall, 2000: 3.6 km | ** Westfall, 2000: 3.6 km | ||
** Viscardy, 1985: 2.85 km | ** Viscardy, 1985: 2.85 km | ||
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* Central peak height | * Central peak height | ||
** [[Sekiguchi%2C%201972|Sekiguchi, 1972]]: 0.4 km, 0.3 km "Two mounds standing side by side" | ** [[Sekiguchi%2C%201972|Sekiguchi, 1972]]: 0.4 km, 0.3 km "Two mounds standing side by side" | ||
| − | *** 0.2 km "A smaller hill to the east of the [central peaks]." <span class="membersnap">- | + | *** 0.2 km "A smaller hill to the east of the [central peaks]." <span class="membersnap">- fatastronomer</span> |
* Included in [[ALPO%20list%20of%20bright%20ray%20craters|ALPO list of bright ray craters]] | * Included in [[ALPO%20list%20of%20bright%20ray%20craters|ALPO list of bright ray craters]] | ||
* Stratigraphy changed from Copernican to Eratosthenian based on Galileo data and crater counts ([http://www.agu.org/pubs/crossref/1993/93JE01137.shtml McEwen et al, 1993]) | * Stratigraphy changed from Copernican to Eratosthenian based on Galileo data and crater counts ([http://www.agu.org/pubs/crossref/1993/93JE01137.shtml McEwen et al, 1993]) | ||
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* The name '''Harpalus''' has continued unchanged since its original use for this feature on [[Riccioli|Riccioli]]'s map (''[[Whitaker|Whitaker]]'', p. 212). | * The name '''Harpalus''' has continued unchanged since its original use for this feature on [[Riccioli|Riccioli]]'s map (''[[Whitaker|Whitaker]]'', p. 212). | ||
* This crater was called '''Morini''' by Van Langren. | * This crater was called '''Morini''' by Van Langren. | ||
| − | * According to the [[IAU%20Planetary%20Gazetteer|IAU Planetary Gazetteer]] this crater is named for Harpalus (unkn-c. 460 B.C.), a Greek astronomer who made refinements to the luni-solar cycle in the time between [[Cleostratus|Cleostratus]] and [[Meton|Meton]]. The original name has sometimes (almost certainly incorrectly) been attributed to a later and more famous [http://en.wikipedia.org/wiki/Harpalus Harpalus], who was a colorful friend of Alexander the Great, but with no known astronomical connection. <span class="membersnap">- | + | * According to the [[IAU%20Planetary%20Gazetteer|IAU Planetary Gazetteer]] this crater is named for Harpalus (unkn-c. 460 B.C.), a Greek astronomer who made refinements to the luni-solar cycle in the time between [[Cleostratus|Cleostratus]] and [[Meton|Meton]]. The original name has sometimes (almost certainly incorrectly) been attributed to a later and more famous [http://en.wikipedia.org/wiki/Harpalus Harpalus], who was a colorful friend of Alexander the Great, but with no known astronomical connection. <span class="membersnap">- JimMosher</span> |
* '''Harpalus Lambda''' (hill east-southeast of '''Harpalus''', north of '''Foucault'''), '''Harpalus Gamma''' and '''Harpalus Xi''' (two hills west-northwest of '''Harpalus'''). See Chart 1 in the ''Times Atlas of the Moon''. | * '''Harpalus Lambda''' (hill east-southeast of '''Harpalus''', north of '''Foucault'''), '''Harpalus Gamma''' and '''Harpalus Xi''' (two hills west-northwest of '''Harpalus'''). See Chart 1 in the ''Times Atlas of the Moon''. | ||
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Latest revision as of 20:16, 16 April 2018
Contents
Harpalus
|
Lat: 52.6°N, Long: 43.4°W, Diam: 39 km, Depth: 3.6 km, Rükl: 2, Eratosthenian |
LO-IV-158H The triangular feature near the bottom margin is a defect in the Lunar Orbiter on-board development.
Images
LPOD Photo Gallery Lunar Orbiter Images
- Lunar Orbiter stereo view
Trivia:
An imaginary convoy of lunar explorers, near and on the floor of Harpalus, is seen in an extraordinary painting which was made by Chesley Bonestell, for the magazine Collier's (see: the ninth painting on page Collier's 2 in Fabio Femino's Fantascienza website). - DannyCaes Jan 13, 2008
Maps
(LAC zone 11D1) LAC map Geologic map
Description
Description: Elger
(IAU Directions) HARPALUS.--A conspicuous ring-plain, about 14 miles in diameter, on the N.W. of Foucault, with a floor sinking 13,000 feet below the surrounding surface. As the cubic contents of the border and glacis are quite inadequate to account for it, we may ask, what has become of the material which presumably once filled this vast depression? Harpalus has a bright central mountain.
Description: Wikipedia
Additional Information
- Depth data from Kurt Fisher database
- Westfall, 2000: 3.6 km
- Viscardy, 1985: 2.85 km
- Cherrington, 1969: 2.98 km
- Central peak height
- Sekiguchi, 1972: 0.4 km, 0.3 km "Two mounds standing side by side"
- 0.2 km "A smaller hill to the east of the [central peaks]." - fatastronomer
- Sekiguchi, 1972: 0.4 km, 0.3 km "Two mounds standing side by side"
- Included in ALPO list of bright ray craters
- Stratigraphy changed from Copernican to Eratosthenian based on Galileo data and crater counts (McEwen et al, 1993)
- TSI = 30, CPI = 30, FI = 20; MI =80 Smith and Sanchez, 1973
Nomenclature
- The name Harpalus has continued unchanged since its original use for this feature on Riccioli's map (Whitaker, p. 212).
- This crater was called Morini by Van Langren.
- According to the IAU Planetary Gazetteer this crater is named for Harpalus (unkn-c. 460 B.C.), a Greek astronomer who made refinements to the luni-solar cycle in the time between Cleostratus and Meton. The original name has sometimes (almost certainly incorrectly) been attributed to a later and more famous Harpalus, who was a colorful friend of Alexander the Great, but with no known astronomical connection. - JimMosher
- Harpalus Lambda (hill east-southeast of Harpalus, north of Foucault), Harpalus Gamma and Harpalus Xi (two hills west-northwest of Harpalus). See Chart 1 in the Times Atlas of the Moon.
LPOD Articles
Bibliography
