This article is about the crater on Mars. For the crater on the Moon, see Hipparchus (lunar crater).
Hipparchus is an impact crater in the Phaethontis quadrangle of Mars, located at 44.8° S latitude and 151.4° W longitude. It is 93 kilometers (58 miles) in diameter. It was named after the ancient Greek astronomer Hipparchus in 1973.[1]
There is abundant evidence that water once flowed in river valleys on Mars.[2][3] Images of curved channels have been seen in images from Mars spacecraft dating back to the early seventies with the Mariner 9 orbiter.[4][5][6][7] Indeed, a study published in June 2017, calculated that the volume of water needed to carve all the channels on Mars was even larger than the proposed ocean that the planet may have had. Water was probably recycled many times from the ocean to rainfall around Mars.[8][9] Some of the pictures on this page show channels in Hipparchus Crater.
^"Gazetteer of Planetary Nomenclature | Hipparchus". usgs.gov. International Astronomical Union. Retrieved 4 March 2015.
^Baker, V., et al. 2015. Fluvial geomorphology on Earth-like planetary surfaces: a review. Geomorphology. 245, 149–182.
^Carr, M. 1996. in Water on Mars. Oxford Univ. Press.
^Baker, V. 1982. The Channels of Mars. Univ. of Tex. Press, Austin, TX
^Baker, V., R. Strom, R., V. Gulick, J. Kargel, G. Komatsu, V. Kale. 1991. Ancient oceans, ice sheets and the hydrological cycle on Mars. Nature 352, 589–594.
^Carr, M. 1979. Formation of Martian flood features by release of water from confined aquifers. J. Geophys. Res. 84, 2995–300.
^Komar, P. 1979. Comparisons of the hydraulics of water flows in Martian outflow channels with flows of similar scale on Earth. Icarus 37, 156–181.
^"How Much Water Was Needed to Carve Valleys on Mars? - SpaceRef".
^Luo, W., et al. 2017. New Martian valley network volume estimate consistent with ancient ocean and warm and wet climate. Nature Communications 8. Article number: 15766 (2017). doi:10.1038/ncomms15766
April 25, 2024
hipparchus, martian, crater, this, article, about, crater, mars, crater, moon, hipparchus, lunar, crater, hipparchus, impact, crater, phaethontis, quadrangle, mars, located, latitude, longitude, kilometers, miles, diameter, named, after, ancient, greek, astron. This article is about the crater on Mars For the crater on the Moon see Hipparchus lunar crater Hipparchus is an impact crater in the Phaethontis quadrangle of Mars located at 44 8 S latitude and 151 4 W longitude It is 93 kilometers 58 miles in diameter It was named after the ancient Greek astronomer Hipparchus in 1973 1 Hipparchus CraterLocation of Hipparchus CraterPlanetMarsRegionPhaethontis quadrangleCoordinates44 48 S 151 24 W 44 8 S 151 4 W 44 8 151 4QuadranglePhaethontisDiameter93 kmEponymHipparchus Contents 1 Channels 2 Gallery 3 See also 4 ReferencesChannels editThere is abundant evidence that water once flowed in river valleys on Mars 2 3 Images of curved channels have been seen in images from Mars spacecraft dating back to the early seventies with the Mariner 9 orbiter 4 5 6 7 Indeed a study published in June 2017 calculated that the volume of water needed to carve all the channels on Mars was even larger than the proposed ocean that the planet may have had Water was probably recycled many times from the ocean to rainfall around Mars 8 9 Some of the pictures on this page show channels in Hipparchus Crater Gallery edit nbsp East side of Hipparchus as seen by CTX camera on Mars Reconnaissance Orbiter MRO nbsp Small channels in Hipparchus as seen by CTX camera on MRO enlargement of the previous image nbsp Wide view of channels on rim of Hipparchus as seen by HiRISE under HiWish program nbsp Close view of channels on rim of Hipparchus as seen by HiRISE under HiWish program nbsp Close view of channels on rim of Hipparchus as seen by HiRISE under HiWish programSee also editList of craters on MarsReferences edit Gazetteer of Planetary Nomenclature Hipparchus usgs gov International Astronomical Union Retrieved 4 March 2015 Baker V et al 2015 Fluvial geomorphology on Earth like planetary surfaces a review Geomorphology 245 149 182 Carr M 1996 in Water on Mars Oxford Univ Press Baker V 1982 The Channels of Mars Univ of Tex Press Austin TX Baker V R Strom R V Gulick J Kargel G Komatsu V Kale 1991 Ancient oceans ice sheets and the hydrological cycle on Mars Nature 352 589 594 Carr M 1979 Formation of Martian flood features by release of water from confined aquifers J Geophys Res 84 2995 300 Komar P 1979 Comparisons of the hydraulics of water flows in Martian outflow channels with flows of similar scale on Earth Icarus 37 156 181 How Much Water Was Needed to Carve Valleys on Mars SpaceRef Luo W et al 2017 New Martian valley network volume estimate consistent with ancient ocean and warm and wet climate Nature Communications 8 Article number 15766 2017 doi 10 1038 ncomms15766 Retrieved from https en wikipedia org w index php title Hipparchus Martian crater amp oldid 1076928761, wikipedia, wiki, book, books, library,
