Difference between revisions of "Alhazen"
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The name '''Alhazen''' seems to have been a matter of some controversy in the 19th century. [/Johann%20Schr%C3%B6ter Johann Schröter] introduced the name as a label for what appears to be a [http://gallica2.bnf.fr/ark:/12148/btv1b2600117x.zoom.f2.langEN prominent crater] in the eastern rim of [/Mare%20Crisium Mare Crisium] (Schröter's illustration is south up), and in the text of his book evidently mentions having frequently used it as a reference point for measuring and describing the positions of nearby features. However, later some later observers were unable to detect a crater at this location. The debate between [/Kunowsky Kunowsky] and Köhler over whether Schröter’s '''Alhazen''' had disappeared or not is recounted in [/Celestial%20Objects%20for%20Common%20Telescopes Webb] and in [/Neison%2C%201876 Neison]. It led [/Beer%20and%20M%C3%A4dler Beer and Mädler] to reassign the name to the crater presently recognized as '''Alhazen''' by the IAU. In 1862, the British selenographer W. R. [/Birt Birt] concluded, with good reason, that Schröter’s '''Alhazen''' simply referred to a [http://lpod.org/coppermine/displayimage.php?pos=-3621 pair of ridges] still prominent in the location indicated by Schröter. When the waxing crescent Moon is observed with moderate to low resolution (as Schröter depicted it in his illustration), this feature looks very much like a crater, as does a more isolated peak to its south, also depicted by Schröter as a crater. The two ridges forming Schröter’s '''Alhazen''' seem to have been called '''[/Mare%20Anguis Mare Anguis] Xi''' and '''Alhazen Alpha''' in [/Blagg%20and%20M%C3%BCller Blagg and Müller], with the more southerly crater-like appearance corresponding to '''Alhazen Beta'''. Similar controversies about real changes happening on the Moon over the time span between various historic maps arose in connection with [/Linn%C3%A9 Linné] and '''[/Hyginus Hyginus] N''', as well as the [/Plato%20craterlets Plato craterlets].<br /> <br /> | The name '''Alhazen''' seems to have been a matter of some controversy in the 19th century. [/Johann%20Schr%C3%B6ter Johann Schröter] introduced the name as a label for what appears to be a [http://gallica2.bnf.fr/ark:/12148/btv1b2600117x.zoom.f2.langEN prominent crater] in the eastern rim of [/Mare%20Crisium Mare Crisium] (Schröter's illustration is south up), and in the text of his book evidently mentions having frequently used it as a reference point for measuring and describing the positions of nearby features. However, later some later observers were unable to detect a crater at this location. The debate between [/Kunowsky Kunowsky] and Köhler over whether Schröter’s '''Alhazen''' had disappeared or not is recounted in [/Celestial%20Objects%20for%20Common%20Telescopes Webb] and in [/Neison%2C%201876 Neison]. It led [/Beer%20and%20M%C3%A4dler Beer and Mädler] to reassign the name to the crater presently recognized as '''Alhazen''' by the IAU. In 1862, the British selenographer W. R. [/Birt Birt] concluded, with good reason, that Schröter’s '''Alhazen''' simply referred to a [http://lpod.org/coppermine/displayimage.php?pos=-3621 pair of ridges] still prominent in the location indicated by Schröter. When the waxing crescent Moon is observed with moderate to low resolution (as Schröter depicted it in his illustration), this feature looks very much like a crater, as does a more isolated peak to its south, also depicted by Schröter as a crater. The two ridges forming Schröter’s '''Alhazen''' seem to have been called '''[/Mare%20Anguis Mare Anguis] Xi''' and '''Alhazen Alpha''' in [/Blagg%20and%20M%C3%BCller Blagg and Müller], with the more southerly crater-like appearance corresponding to '''Alhazen Beta'''. Similar controversies about real changes happening on the Moon over the time span between various historic maps arose in connection with [/Linn%C3%A9 Linné] and '''[/Hyginus Hyginus] N''', as well as the [/Plato%20craterlets Plato craterlets].<br /> <br /> | ||
==LPOD Articles== | ==LPOD Articles== | ||
| − | [http:// | + | [http://www2.lpod.org/wiki/February_16,_2007 A Single Peak]<br /> [http://lpod.wikispaces.com/February%2020%2C%202014 Mountains by the Sea]<br /> <br /> |
==Bibliography== | ==Bibliography== | ||
Revision as of 20:08, 11 April 2018
Contents
Alhazen
|
Lat: 15.9°N, Long: 71.8°E, Diam: 32 km, Depth: 2.17 km, [/R%C3%BCkl%2027 Rükl: 27] |
Table of Contents
[#Alhazen Alhazen]
[#Alhazen-Images Images]
[#Alhazen-Maps Maps]
[#Alhazen-Description Description]
[#Alhazen-Description: Elger Description: Elger]
[#Alhazen-Description: Wikipedia Description: Wikipedia]
[#Alhazen-Additional Information Additional Information]
[#Alhazen-Nomenclature Nomenclature]
[#Alhazen-The Alhazen Controversy The Alhazen Controversy]
[#Alhazen-LPOD Articles LPOD Articles]
[#Alhazen-Bibliography Bibliography]
Consolidated Lunar Atlas plate D2 The labeled features in this rectified version of the [/Consolidated%20Lunar%20Atlas Consolidated Lunar Atlas] plate are [/Condorcet Condorcet], [/Promontorium%20Agarum Promontorium Agarum], [/Alhazen Alhazen] and [/Hansen Hansen]. Also visible, but not labeled, are [/Dorsa%20Harker Dorsa Harker] (to the west of Pr. Agarum); [/Mons%20Usov Mons Usov]; [/Auzout Auzout], [/van%20Albada van Albada] and [/Krogh Krogh]; the northeast part of [/Firmicus Firmicus] (in the lower left corner), and the northern part of [/Mare%20Undarum Mare Undarum] (along most of the lower margin).
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
It would be interesting to know one or more science-related facts related to the two black arrows near the right margin of Apollo 17's orbital ITEK-panoramic frame AS17-P-2172. Both arrows are pointing to something on the dark floor of Alhazen B.
Detection of Alhazen B plus two black arrows on frame AS17-P-2172: Danny Caes
Maps
([/LAC%20zone LAC zone] 63A1) USGS Digital Atlas PDF
Description
Description: Elger
([/IAU%20Directions IAU Directions]) ALHAZEN.--This ring-plain, rather smaller than [/Hansen Hansen], is the most northerly of the linear chain of formations, associated with the highlands bordering the S.E. and the E. flanks of the [/Mare%20Crisium Mare Crisium]. It has a central mountain and other minor elevations on the floor. There is a little ring between Alhazen and [/Hansen Hansen], never very conspicuous in the telescope, which is plainly traceable in good photographs.
Description: Wikipedia
Additional Information
Depth data from [/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
- Westfall, 2000: 2.17 km
- Cherrington, 1969: 1.58 km
Nomenclature
- Named for Abu ‘Ali al-Hasan ibn al-Hasan ibn al-Haytham (965–1039) (Alhazen), a Muslim polymath, astronomer, engineer, mathematician, physicist, and scientist, who made significant contributions to the principles of optics, as well as motion, number theory, analytical geometry, and integral calculus, and established the use of the experimental scientific method.
- Alhazen E was called Recorde by [/Wilkins%20and%20Moore Wilkins and Moore], but the [/IAU IAU] did not accept that name. Recordewas a Welsh scientist (1510-1558).
- Alhazen Alpha and Alhazen Beta (two prominent mountains at the eastern part of Mare Crisium's (or the Crisium basin's) rim, northwest of Alhazen) (see Chart 34 in the Times Atlas of the Moon).
The Alhazen Controversy
The name Alhazen seems to have been a matter of some controversy in the 19th century. [/Johann%20Schr%C3%B6ter Johann Schröter] introduced the name as a label for what appears to be a prominent crater in the eastern rim of [/Mare%20Crisium Mare Crisium] (Schröter's illustration is south up), and in the text of his book evidently mentions having frequently used it as a reference point for measuring and describing the positions of nearby features. However, later some later observers were unable to detect a crater at this location. The debate between [/Kunowsky Kunowsky] and Köhler over whether Schröter’s Alhazen had disappeared or not is recounted in [/Celestial%20Objects%20for%20Common%20Telescopes Webb] and in [/Neison%2C%201876 Neison]. It led [/Beer%20and%20M%C3%A4dler Beer and Mädler] to reassign the name to the crater presently recognized as Alhazen by the IAU. In 1862, the British selenographer W. R. [/Birt Birt] concluded, with good reason, that Schröter’s Alhazen simply referred to a pair of ridges still prominent in the location indicated by Schröter. When the waxing crescent Moon is observed with moderate to low resolution (as Schröter depicted it in his illustration), this feature looks very much like a crater, as does a more isolated peak to its south, also depicted by Schröter as a crater. The two ridges forming Schröter’s Alhazen seem to have been called [/Mare%20Anguis Mare Anguis] Xi and Alhazen Alpha in [/Blagg%20and%20M%C3%BCller Blagg and Müller], with the more southerly crater-like appearance corresponding to Alhazen Beta. Similar controversies about real changes happening on the Moon over the time span between various historic maps arose in connection with [/Linn%C3%A9 Linné] and [/Hyginus Hyginus] N, as well as the [/Plato%20craterlets Plato craterlets].
LPOD Articles
A Single Peak
Mountains by the Sea
Bibliography
- Birt, W. R. 1862. On a Re-discovery of the missing Lunar Crater, Alhazen, situated on the western border of the Mare Crisium. Monthly Notices of the Royal Astronomical Society, Vol. 22, pp. 229-231.
- Birt, W. R. 1867. The Lunar Crater Alhazen. Astronomical register, vol. 5, p. 170.
- Harold Hill. [/A%20Portfolio%20of%20Lunar%20Drawings A Portfolio of Lunar Drawings], pages 28, 29 (Alhazen alpha).
- [/Wilkins%20and%20Moore Wilkins and Moore]: Alhazen E ("Recorde").
This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx3u2
