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Hortensius (crater)

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Coordinates:6°30′N28°00′W / 6.5°N 28.0°W /6.5; -28.0

From Wikipedia, the free encyclopedia

Crater on the Moon

Feature on the moon

Hortensius
Lunar Orbiter 4 image (Note also lunar dome at top center)
Coordinates	6°30′N28°00′W / 6.5°N 28.0°W /6.5; -28.0
Diameter	15 km (9 mi)
Depth	2.9 km (1.8 mi)
Colongitude	28° at sunrise
Eponym	Martin van den Hove

The crater area in selenochromatic format

Hortensius is a small, bowl-shapedlunar impact crater that is located in the northern part of theMare Insularum. It was named after 17th century Dutch astronomerMartin van den Hove (Latinized asMartinus Hortensius).^[1]

Image of lunar domes north of Hortensius, fromLunar Reconnaissance Orbiter

It lies some distance to the west-southwest of the prominent craterCopernicus. Hortensius is circular and cup-shaped, with a small floor at the midpoint of the sloping interior walls. The interior has a higheralbedo than the surroundinglunar mare, despite traces ofray material from Copernicus.

To the north of this feature is a collection of sixlunar domes, many having a tiny craterlet at the summit. These areshield volcanoes that were formed by a highlyviscous type oflava. The domes are generally circular in form, with a diameter of 6–8 kilometers (4–5 mi), and rising as high as 400 meters (1300 ft). They are formed of the same material as the surrounding mare, although from a different process.

Satellite craters

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By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hortensius.

Hortensius	Latitude	Longitude	Diameter (km)	Diameter (mi)
A	4.4° N	30.7° W	10 km	6 mi
B	5.3° N	29.5° W	6 km	4 mi
C	6.0° N	26.7° W	7 km	4 mi
D	5.4° N	32.3° W	6 km	4 mi
E	5.2° N	25.4° W	15 km	9 mi
F	7.1° N	25.6° W	6 km	4 mi
G	8.1° N	26.1° W	4 km	2½ mi
H	5.9° N	31.1° W	6 km	4 mi

Lunar Orbiter 4 image of Hortensius A
Lunar Orbiter 4 image of Hortensius E

References

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^"Hortensius (crater)".Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

Andersson, L. E.;Whitaker, E. A. (1982).NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
Bussey, B.;Spudis, P. (2004).The Clementine Atlas of the Moon. New York:Cambridge University Press.ISBN 978-0-521-81528-4.
Cocks, Elijah E.; Cocks, Josiah C. (1995).Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers.ISBN 978-0-936389-27-1.
McDowell, Jonathan (July 15, 2007)."Lunar Nomenclature".Jonathan's Space Report. Retrieved2007-10-24.
Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU".Space Science Reviews.12 (2):136–186.Bibcode:1971SSRv...12..136M.doi:10.1007/BF00171763.S2CID 122125855.
Moore, Patrick (2001).On the Moon.Sterling Publishing Co.ISBN 978-0-304-35469-6.
Price, Fred W. (1988).The Moon Observer's Handbook. Cambridge University Press.ISBN 978-0-521-33500-3.
Rükl, Antonín (1990).Atlas of the Moon.Kalmbach Books.ISBN 978-0-913135-17-4.
Webb, Rev. T. W. (1962).Celestial Objects for Common Telescopes (6th revised ed.). Dover.ISBN 978-0-486-20917-3.{{cite book}}:ISBN / Date incompatibility (help)
Whitaker, Ewen A. (1999).Mapping and Naming the Moon. Cambridge University Press.ISBN 978-0-521-62248-6.
Wlasuk, Peter T. (2000).Observing the Moon. Springer.ISBN 978-1-85233-193-1.

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