Dreyer (crater)
{{Short description|Crater on the Moon}}
{{Infobox Lunar crater
| image = Normal Dreyer LO-II-196M LTVT.jpg
| caption = Lunar Orbiter 4 image of the crater, on top right is Dreyer C, on the bottom right are Dreyer K and J and on top left is Dreyer W
| coordinates = {{coord|10.0|N|96.9|E|globe:moon_type:landmark|display=inline,title}}
| diameter = 61 km
| depth =
| colong = 264
| eponym = John L. E. Dreyer
}}
Dreyer is the remnant of a lunar impact crater on the far side of the Moon. It is located along the eastern edge of the Mare Marginis, about midway between the craters Ginzel to the north and Erro to the south-southeast. It was named after Danish-Irish astronomer John L. E. Dreyer.{{gpn|1638}}
File:Dreyer crater Ginzel crater AS14-71-9889.jpg Hasselblad camera image
Dreyer and Ginzel and several of their satellite craters. From center, Ginzel is at approximately 12:00, and Dreyer is at approximately 8:00. The small crater at 9:00 is Dreyer W. Dreyer C is just east of Dreyer, and Dreyer K and J are to the south and southeast of Dreyer.]]
The rim of this crater is heavily worn, with multiple impacts overlaying the edge and a small gap at the south end. The satellite crater Dreyer C lies across the northeastern rim, while Dreyer K intrudes into the southeastern side. The interior floor is relatively level and featureless, with a few tiny craterlets marking the surface. There is a low central ridge at the midpoint.
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 Dreyer.
| class="wikitable"
!width="25%" style="background:#eeeeee;" |Dreyer !width="25%" style="background:#eeeeee;" |Latitude !width="25%" style="background:#eeeeee;" |Longitude !width="25%" style="background:#eeeeee;" |Diameter |
| align="center"|C
|align="center"|11.2° N |align="center"|98.2° E |align="center"|37 km |
| align="center"|D
|align="center"|10.8° N |align="center"|99.8° E |align="center"|27 km |
| align="center"|J
|align="center"|8.8° N |align="center"|98.2° E |align="center"|29 km |
| align="center"|K
|align="center"|9.0° N |align="center"|97.4° E |align="center"|23 km |
| align="center"|R
|align="center"|8.5° N |align="center"|94.0° E |align="center"|18 km |
| align="center"|W
|align="center"|11.8° N |align="center"|95.7° E |align="center"|30 km |
References
{{Reflist}}
{{refbegin}}
- {{cite book
| last1 = Andersson
| first1 = L. E.
| last2 = Whitaker
| first2 = E. A.
| author-link2 = Ewen Whitaker
| date = 1982
| title = NASA Catalogue of Lunar Nomenclature
| publisher = NASA RP-1097
}}
- {{cite book
| last1 = Bussey
| first1 = B.
| author-link1 = Ben Bussey
| last2 = Spudis
| first2 = P.
| author-link2 = Paul Spudis
| date = 2004
| title = The Clementine Atlas of the Moon
| publisher = Cambridge University Press
| location = New York
| isbn = 978-0-521-81528-4
}}
- {{cite book
| 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
}}
- {{cite journal| last1 = Menzel| first1 = D. H.| last2 = Minnaert| first2 = M.| last3 = Levin| first3 = B.| last4 = Dollfus| first4 = A.| last5 = Bell| first5 = B.| title = Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU| doi = 10.1007/BF00171763| journal = Space Science Reviews| volume = 12| issue = 2| pages = 136–186| date = 1971| bibcode = 1971SSRv...12..136M| s2cid = 122125855}}
- {{cite book
| first = Patrick
| last = Moore
| author-link = Patrick Moore
| date = 2001
| title = On the Moon
| publisher = Sterling Publishing Co.
| isbn = 978-0-304-35469-6
| url = https://archive.org/details/patrickmooreonmo00patr
}}
- {{cite book
| 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
| author-link = Antonín Rükl
| date = 1990
| title = Atlas of the Moon
| publisher = Kalmbach Books
| isbn = 978-0-913135-17-4
}}
- {{cite book
| last = Webb
| first = Rev. T. W.
| author-link = 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
| author-link = 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}}
External links
{{Commons category|Dreyer (lunar crater)}}
- [https://the-moon.us/wiki/Dreyer Dreyer at The Moon Wiki]
=Related articles=
- {{cite web| last = Wood | first = Chuck | date = June 17, 2009 | url = http://lpod.wikispaces.com/June+17%2C+2009| title = Beyond the Cat's Smile | publisher = Lunar Photo of the Day }} - showing the crater with the name not being mentioned but with a question mark
{{Craters on the Moon: C-F}}