Difference between revisions of "J. Herschel"
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** Westfall, 2000: 0.9 km | ** Westfall, 2000: 0.9 km | ||
** Cherrington, 1969: 1.7 km | ** Cherrington, 1969: 1.7 km | ||
| − | * Over 8500 m of the eastern wall were measured (using the shadows cast and [[LTVT|LTVT]]) and the depth of the crater varied from slightly less than 1600 m to less than 400 m (Boint, "Profiles Of Features In The J. Herschel Crater, [[Fontenelle|Fontenelle]] Crater, and [[La%20Condamine|La Condamine]] Crater Area", [http://digilander.libero.it/glrgroup/ Selenology Today, Vol. 9.] 1-12.)<span class="membersnap">- | + | * Over 8500 m of the eastern wall were measured (using the shadows cast and [[LTVT|LTVT]]) and the depth of the crater varied from slightly less than 1600 m to less than 400 m (Boint, "Profiles Of Features In The J. Herschel Crater, [[Fontenelle|Fontenelle]] Crater, and [[La%20Condamine|La Condamine]] Crater Area", [http://digilander.libero.it/glrgroup/ Selenology Today, Vol. 9.] 1-12.)<span class="membersnap">- fatastronomer</span> |
* Large pyroclastic deposit (area = 666 km^2) on SE part of floor near rim, unusual in containing olivine in volcanic ash. Gaddis, L. (1999) [http://astrogeology.usgs.gov/Projects/LunarPyroclasticVolcanism/lunpyroWebDb.html Lunar Pyroclastic Volcanism Project]. | * Large pyroclastic deposit (area = 666 km^2) on SE part of floor near rim, unusual in containing olivine in volcanic ash. Gaddis, L. (1999) [http://astrogeology.usgs.gov/Projects/LunarPyroclasticVolcanism/lunpyroWebDb.html Lunar Pyroclastic Volcanism Project]. | ||
* South-southeast of '''[http://lpod.org/coppermine/displayimage.php?pos=-793 J. Herschel F]''' is a [[concentric%20crater|concentric crater]]. | * South-southeast of '''[http://lpod.org/coppermine/displayimage.php?pos=-793 J. Herschel F]''' is a [[concentric%20crater|concentric crater]]. | ||
| − | * The outside western rim of '''J. Herschel F''' rises between 650 m and 720 m above the surrounding mare. (Boint, "Profiles Of Features In The J. Herschel Crater, Fontenelle Crater, and La Condamine Crater Area", [http://digilander.libero.it/glrgroup/ Selenology Today, Vol. 9.] 1-12.). <span class="membersnap">- | + | * The outside western rim of '''J. Herschel F''' rises between 650 m and 720 m above the surrounding mare. (Boint, "Profiles Of Features In The J. Herschel Crater, Fontenelle Crater, and La Condamine Crater Area", [http://digilander.libero.it/glrgroup/ Selenology Today, Vol. 9.] 1-12.). <span class="membersnap">- fatastronomer</span> |
* One could ask questions about the origin of the crackled (or fractured) region east of '''J.Herschel C''' on the floor of '''J.Herschel''' itself (slightly westward of the eastern section of '''J.Herschel''''s rim). Is this fractured region related to the phenomenon of the ''Floor Fractured Craters'' (''FFC'') which was once investigated by Peter H. Schultz in 1976? <span class="membersnap">- DannyCaes <small>Sep 5, 2014</small></span> | * One could ask questions about the origin of the crackled (or fractured) region east of '''J.Herschel C''' on the floor of '''J.Herschel''' itself (slightly westward of the eastern section of '''J.Herschel''''s rim). Is this fractured region related to the phenomenon of the ''Floor Fractured Craters'' (''FFC'') which was once investigated by Peter H. Schultz in 1976? <span class="membersnap">- DannyCaes <small>Sep 5, 2014</small></span> | ||
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Latest revision as of 20:17, 16 April 2018
Contents
J. Herschel
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Lat: 62.0°N, Long: 42.0°W, Diam: 165 km, Depth: 0.9 km, Rükl: 2 |
Images
LPOD Photo Gallery Lunar Orbiter Images
- The 32th item in C. A. Wood's list of Concentric Craters (1978) is the one south-southeast of J. Herschel F. It is noticeable on the Hi-Res scan of Lunar Orbiter 4's photograph LOIV-152-h1. In this part of Mare Frigoris, near J. Herschel F (between La Condamine and J. Herschel), a curious field of twisted arc-shapes is noticeable. Among these twisted arc-shapes, several concentric craters (and possible concentric craters) have been detected. Research: Danny Caes
Maps
(LAC zone 11A2) LAC map Geologic map
Description
Description: Elger
(IAU Directions) J.F.W. HERSCHEL.--A vast enclosed plain, about 90 miles across, bounded on the E. by a mountain range, which here defines the W. side of the Mare Frigoris, on the S. by massive mountains, and on the other sides by a lofty but much broken wall, intersected by many passes. Within is a large ring-plain, nearly central, and a large number of little craters and crater-pits. The floor is traversed longitudinally by many low ridges, lying very close together, which at sunrise resemble fine grooves or scratches of irregular width and depth.
Description: Wikipedia
Additional Information
- Depth data from Kurt Fisher database
- Westfall, 2000: 0.9 km
- Cherrington, 1969: 1.7 km
- Over 8500 m of the eastern wall were measured (using the shadows cast and LTVT) and the depth of the crater varied from slightly less than 1600 m to less than 400 m (Boint, "Profiles Of Features In The J. Herschel Crater, Fontenelle Crater, and La Condamine Crater Area", Selenology Today, Vol. 9. 1-12.)- fatastronomer
- Large pyroclastic deposit (area = 666 km^2) on SE part of floor near rim, unusual in containing olivine in volcanic ash. Gaddis, L. (1999) Lunar Pyroclastic Volcanism Project.
- South-southeast of J. Herschel F is a concentric crater.
- The outside western rim of J. Herschel F rises between 650 m and 720 m above the surrounding mare. (Boint, "Profiles Of Features In The J. Herschel Crater, Fontenelle Crater, and La Condamine Crater Area", Selenology Today, Vol. 9. 1-12.). - fatastronomer
- One could ask questions about the origin of the crackled (or fractured) region east of J.Herschel C on the floor of J.Herschel itself (slightly westward of the eastern section of J.Herschel's rim). Is this fractured region related to the phenomenon of the Floor Fractured Craters (FFC) which was once investigated by Peter H. Schultz in 1976? - DannyCaes Sep 5, 2014
Nomenclature
- Named for Sir John Frederick William Herschel (1792-1871), a British astronomer.
- The name Herschel II (to distinguish it from the existing name Herschel) was introduced by Birt in 1863.
- It became J.F.W. Herschel when published in the list of new British Association names in Webb (1873).
- This feature is Catalog number 1686 in Mary Blagg's Collated List, where it is noted as being misspelled F. Herschel on Map 6 of Neison, 1876, and not named by the other authorities.
- It was introduced into the IAU nomenclature as J. Herschel in Named Lunar Formations with the name attributed to Birt.
- Not to be confused with Herschel and C. Herschel.
LPOD Articles
Oozing Ejecta
A Different Kind of Swirl
Bibliography
- Birt, W. R. 1863. "On a Group of Lunar Craters imperfectly represented in Lunar Maps." Report of the British Association for the Advancement of Science 1862 Meeting. Notices Section (at end), pp. 9-12.
John F. W. Herschel in the Sourcebook Project (William R. Corliss)
- In Lightning, Auroras, Nocturnal Lights, and related luminous phenomena (1982) :
- GLA1-R10: Notice of an Extraordinary Luminous Appearance (John F. W. Herschel, Proceedings of the Royal Society, 1842). GLA1: Auroral Pillars - Natural Searchlight Beams.
- In Tornados, Dark Days, Anomalous Precipitation, and related weather phenomena (1983) :
- GWD1-R16: The Mid-Day Darkness of Sunday, January 22 (J.Herschel, Nature, 1882). GWD1: Dark Days and Obscurations of the Sun.
