Hortensius (crater)

Hortensius is a small, bowl-shaped lunar impact crater that is located in the northern part of the Mare Insularum. It was named after 17th century Dutch astronomer Martin van den Hove (Latinized as Martinus Hortensius).[1] It lies some distance to the west-southwest of the prominent crater Copernicus. Hortensius is circular and cup-shaped, with a small floor at the midpoint of the sloping interior walls. The interior has a higher albedo than the surrounding lunar mare, despite traces of ray material from Copernicus.

Hortensius
Lunar Orbiter 4 image
(Note also lunar dome at top center)
Coordinates6.5°N 28.0°W / 6.5; -28.0
Diameter15 km (9 mi)
Depth2.9 km (1.8 mi)
Colongitude28° at sunrise
EponymMartin van den Hove
Image of lunar domes north of Hortensius, from Lunar Reconnaissance Orbiter

To the north of this feature is a collection of six lunar domes, many having a tiny craterlet at the summit. These are shield volcanoes that were formed by a highly viscous type of lava. 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.

Apollo 12 Hasselblad image

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 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

References
  1. "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.CS1 maint: ref=harv (link)
  • Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.CS1 maint: ref=harv (link)
  • 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.CS1 maint: ref=harv (link)
  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.CS1 maint: ref=harv (link)
  • 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.CS1 maint: ref=harv (link)
  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.CS1 maint: ref=harv (link)
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.CS1 maint: ref=harv (link)
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.CS1 maint: ref=harv (link)
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.CS1 maint: ref=harv (link)
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.CS1 maint: ref=harv (link)
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.CS1 maint: ref=harv (link)
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