Larmor (crater)
{{Short description|Crater on the Moon}}
{{no footnotes|date=October 2019}}
{{Infobox Lunar crater
| image = Larmor crater LRO WAC.jpg
| caption = LRO image, with Larmor Z at top
| coordinates = {{coord|32.1|N|179.7|E|globe:moon_type:landmark|display=inline,title}}
| diameter = {{convert|97|km|abbr=on}}
| depth = Unknown
| colong = 180
| eponym = Joseph Larmor
}}
Image:Larmor crater 2034 med.jpg image, facing north]]
Image:Larmor crater 5053 med.jpg image, facing west]]
Image:Normal larmor-clem1.jpg mosaic]]
Larmor is a crater on the Moon's far side. It is located to the east-southeast of Shayn and due north of Dante. It is named in honor of the physicist Joseph Larmor.
The rim of Larmor is broken across by the satellite crater Larmor Z. The remaining rim is slightly worn, particularly to the southwest, and the inner wall is somewhat wider at the southern end. The wider southern inner wall displays terrace structures. Near the midpoint of the otherwise relatively level interior floor are some low hill features.
The satellite crater Larmor Q, located about one and a half crater diameters to the southwest of Larmor, has a ray system. These rays lie primarily within cones to the north and southeast, which leave a 120° arc to the west which is free of ray material. The crater is fresh, with an impact melt splash pool at the bottom and lobes of melt that have flowed down the outside of the rim.[https://www.lroc.asu.edu/posts/773 A Splendid View of Larmor Q], Lunar Reconnaissance Orbiter team, Posted by J. Stopar on May 13, 2014 05:00 UTC.
The crater was named after Joseph Larmor by the IAU in 1970.[https://planetarynames.wr.usgs.gov/Feature/3282 Larmor], Gazetteer of Planetary Nomenclature, International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN)
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Larmor.
| class="wikitable"
!width="25%" style="background:#eeeeee;" |Larmor !width="25%" style="background:#eeeeee;" |Latitude !width="25%" style="background:#eeeeee;" |Longitude !width="25%" style="background:#eeeeee;" |Diameter |
| align="center"|K
|align="center"|30.3° N |align="center"|179.0° W |align="center"|{{convert|24|km|abbr=on}} |
| align="center"|Q
|align="center"|28.6° N |align="center"|176.2° E |align="center"|{{convert|22|km|abbr=on}} |
| align="center"|W
|align="center"|33.3° N |align="center"|177.6° E |align="center"|{{convert|27|km|abbr=on}} |
| align="center"|Z
|align="center"|33.7° N |align="center"|179.8° W |align="center"|{{convert|49|km|abbr=on}} |
File:LARMOR Q LROC.png|Oblique view of part of Larmor Q crater
References
{{reflist}}
{{refbegin}}
- {{cite book
| last1 = Andersson
| first1 = L. E.
| last2 = Whitaker
| first2 = E. A.
| authorlink2 = Ewen Whitaker
| date = 1982
| title = NASA Catalogue of Lunar Nomenclature
| publisher = NASA RP-1097
}}
- {{cite web
| last = Blue
| first = Jennifer
| date = July 25, 2007
| title = Gazetteer of Planetary Nomenclature
| publisher = USGS
| url = http://planetarynames.wr.usgs.gov/
| access-date = 2007-08-05
}}
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| last1 = Bussey
| first1 = B.
| authorlink1 = Ben Bussey
| last2 = Spudis
| first2 = P.
| authorlink2 = Paul Spudis
| date = 2004
| title = The Clementine Atlas of the Moon
| publisher = Cambridge University Press
| location = New York
| isbn = 978-0-521-81528-4
}}
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| last1 = Cocks
| first1 = Elijah E.
| last2 = Cocks
| first2 = Josiah C.
| date = 1995
| title = Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature
| publisher = Tudor Publishers
| isbn = 978-0-936389-27-1
| url = https://archive.org/details/isbn_9780936389271
}}
- {{cite web
| last = McDowell
| first = Jonathan
| date = July 15, 2007
| url = http://host.planet4589.org/astro/lunar/
| title = Lunar Nomenclature
| publisher = Jonathan's Space Report
| access-date = 2007-10-24
}}
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| first = Patrick
| last = Moore
| authorlink = Patrick Moore
| date = 2001
| title = On the Moon
| publisher = Sterling Publishing Co.
| isbn = 978-0-304-35469-6
| url = https://archive.org/details/patrickmooreonmo00patr
}}
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| first = Fred W.
| last = Price
| date = 1988
| title = The Moon Observer's Handbook
| publisher = Cambridge University Press
| isbn = 978-0-521-33500-3
}}
- {{cite book
| last = Rükl
| first = Antonín
| authorlink = Antonín Rükl
| date = 1990
| title = Atlas of the Moon
| publisher = Kalmbach Books
| isbn = 978-0-913135-17-4
}}
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| last = Webb
| first = Rev. T. W.
| authorlink = Thomas William Webb
| date = 1962
| title = Celestial Objects for Common Telescopes
| edition = 6th revised
| publisher = Dover
| isbn = 978-0-486-20917-3
| url = https://archive.org/details/celestialobjects00webb
}}
- {{cite book
| first = Ewen A.
| last = Whitaker
| authorlink = Ewen Whitaker
| date = 1999
| title = Mapping and Naming the Moon
| publisher = Cambridge University Press
| isbn = 978-0-521-62248-6
}}
- {{cite book
| first = Peter T.
| last = Wlasuk
| date = 2000
| title = Observing the Moon
| publisher = Springer
| isbn = 978-1-85233-193-1
}}
{{refend}}