To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

List of craters on Mars

From Wikipedia, the free encyclopedia

List of craters on the MoonMartian: 1,092 craters (21.0%)List of craters on VenusList of craters on MercuryOthers: 1,198 craters (23.0%)Circle frame.svg
  •   lunar: 1,624 craters (31.2%)
  •   Martian: 1,092 craters (21.0%)
  •   Venerian: 900 craters (17.3%)
  •   Mercurian: 397 craters (7.6%)
  •   Others: 1,198 craters (23.0%)
Distribution of named craters in the Solar System as of 2017.

This is a list of craters on Mars. Impact craters on Mars larger than 1 km exist by the hundreds of thousands, but only about one thousand of them have names.[1] Names are assigned by the International Astronomical Union after petitioning by relevant scientists, and in general, only craters that have a significant research interest are given names. Martian craters are named after famous scientists and science fiction authors, or if less than 60 km in diameter, after towns on Earth. Craters cannot be named for living people, and names for small craters are rarely intended to commemorate a specific town.[2] Latitude and longitude are given as planetographic coordinates with west longitude.

YouTube Encyclopedic

  • 1/5
    Views:
    82 440
    526
    407 092
    104 870
    40 102
  • ✪ What Were the Biggest Asteroids to Hit Earth?
  • ✪ NASA Invites Public To Submit Names To Ride Along New Rover
  • ✪ What did NASA's Lunar Orbiter discover around the Moon's craters? LRO 4K
  • ✪ NASA | New Craters on the Moon
  • ✪ Exploring The Icy Moons of Jupiter. NASA's Europa Clipper and ESA's JUICE

Transcription

>> Denton Ebel: We think—and a lot of evidence supports this theory—that the Earth’s moon formed in a large collision, probably only one collision, between the Earth and a Mars-size object, very early, within 60 million years of the Earth really accreting and differentiating into a core and a mantle. That’s a big event in Earth history. We know from Mercury, from the moon, that there were many large impacts in the early solar system. When you look at the moon and you see these big, dark patches that are roundish, those are impact basins. Huge impact basins that are filled with lava from inside the moon. So, we can use the moon as a measuring rod for the impact history of the Earth and all of the inner planets. And, of course, we’re familiar with the asteroid that hit the Earth 65 million years ago ago, causing a huge crater in the Caribbean. Evidence from this impact has been found around the world as a thin, sedimentary layer called the Cretaceous-Paleogene boundary, or K-Pg for short. Geologists discovered that this layer is rich in metallic elements like iridium, that are rare on the crust and mantle of the earth because they’ve been concentrated in the core, but they’re common in asteroids and comets because those bodies haven't formed a core. The reason geologists made that distinction between the cretaceous period and the Paleogene is this huge change in the nature of life itself: where mammals take over, and most of the dinosaurs disappear. The ammonites in the oceans are gone. But, more importantly, at the plankton level—the small, small creatures, the small life forms, which make very nice sediments that are dateable, it’s like a knife edge in the record of life itself. As a result of a cosmic collision—an accident really. Something that happens every so often, and we hope doesn’t happen to us.

Catalog of named craters

The catalog is divided into three partial lists:

Names are grouped into tables for each letter of the alphabet, containing the crater's name (linked if article exists), coordinates, diameter in kilometers, year of official name adoption (approval), the eponym ("named after") and a direct reference to the Gazetteer of Planetary Nomenclature.[1]

Statistics

As of 2017, Martian craters account for 21% of all 5,211 named craters in the Solar System. Apart from the Moon, no other body has as many named craters as Mars. Other, non-planetary bodies with numerous named craters include Callisto (141), Ganymede (131), Rhea (128), Vesta (90), Ceres (90), Dione (73), Iapetus (58), Enceladus (53), Tethys (50) and Europa (41). For a full list, see List of craters in the Solar System.

Largest craters

Some of the largest craters on Mars remain unnamed. Diameters differ depending on source data.

Crater[a] Coordinates Diameter (km)[b] Elliptical major axis (km) Elliptical minor axis (km) Rank by approx. area Approval date Named after Refs
Huygens 13°58′S 55°35′E / 13.96°S 55.58°E / -13.96; 55.58 (Huygens) 467.25 484.89 450.54 1 1973 Christiaan Huygens WGPSN
Schiaparelli 2°41′S 16°47′E / 2.69°S 16.79°E / -2.69; 16.79 (Schiaparelli) 458.52 (445.76) 462.51 430.4 2 1973 Giovanni Schiaparelli WGPSN
Unnamed 38°06′N 167°09′W / 38.1°N 167.15°W / 38.1; -167.15 376.35 452.74 384.9 3
Greeley 36°38′S 3°11′E / 36.63°S 3.19°E / -36.63; 3.19 (Greeley) 457.45 (427.15) 438.81 395.71 4 2015 Ronald Greeley WGPSN
Cassini 22°35′N 32°07′E / 22.59°N 32.11°E / 22.59; 32.11 (Cassini) 408.23 411.45 402.42 5 1973 Giovanni Cassini WGPSN
Antoniadi 21°35′N 60°50′E / 21.59°N 60.84°E / 21.59; 60.84 (Antoniadi) 400.95 417.04 389.68 6 1973 Eugène Michael Antoniadi WGPSN
Dollfus 20°59′S 3°50′W / 20.99°S 3.83°W / -20.99; -3.83 (Dollfus) 363.08 (358.72) 367.94 346.98 7 2013 Audouin Dollfus WGPSN
Unnamed 59°01′S 76°53′W / 59.01°S 76.89°W / -59.01; -76.89 341.1 391.76 325.82 8
Tikhonravov 12°55′N 35°55′E / 12.92°N 35.91°E / 12.92; 35.91 (Tikhonravov) 343.7 356.28 331.85 9 1985 Mikhail Tikhonravov WGPSN
Unnamed 23°23′N 53°14′E / 23.39°N 53.24°E / 23.39; 53.24 340.12 351.4 330.13 10
Unnamed 0°59′S 28°52′E / 0.99°S 28.86°E / -0.99; 28.86 325.8 347 308.58 11
Newton 40°31′S 158°04′W / 40.52°S 158.06°W / -40.52; -158.06 (Newton) 299.94 (312.44) 318.37 307.37 12 1973 Isaac Newton WGPSN
Unnamed 59°32′S 83°53′W / 59.53°S 83.89°W / -59.53; -83.89 301.99 319.91 297.06 13
Unnamed 24°28′S 32°07′W / 24.47°S 32.12°W / -24.47; -32.12 300.36 323.73 291.72 14
de Vaucouleurs 13°40′S 171°05′E / 13.67°S 171.09°E / -13.67; 171.09 (de Vaucouleurs) 302.27 (311.68) 316.11 297.19 15 2000 Gérard de Vaucouleurs WGPSN
Copernicus 48°53′S 168°49′W / 48.88°S 168.82°W / -48.88; -168.82 (Copernicus) 301.83 320.69 284.51 16 1973 Nicolaus Copernicus WGPSN
Unnamed 52°33′S 109°34′W / 52.55°S 109.57°W / -52.55; -109.57 326.77 343.52 260.75 17
Herschel 14°09′S 129°53′E / 14.15°S 129.89°E / -14.15; 129.89 (Herschel) 297.92 301.56 294.41 18 1973 John Herschel and William Herschel WGPSN
Schroeter 1°53′S 55°59′E / 1.89°S 55.99°E / -1.89; 55.99 (Schroeter) 291.59 298.12 285.7 19 1973 Johann Hieronymus Schröter WGPSN
Koval'sky 29°44′S 141°26′W / 29.73°S 141.43°W / -29.73; -141.43 (Koval'sky) 296.67 (285.14) 288.89 281.38 20 1985 Marian Albertovich Kowalski WGPSN

Notes

  1. ^ Data in this table includes contents from:
  2. ^ The entries containing two diameter values are due to presumably newer data being available via Gazetteer of Planetary Nomenclature. The value consistent with the Robbins data is included in parenthesis for completeness.

Example crater

An approximate true-color image, taken by Mars exploration rover Opportunity, shows the view of Victoria crater from Cape Verde. It was captured over a three-week period, from October 16 – November 6, 2006.

See also

References

  1. ^ a b "Nomenclature Search Results: Mars > Crater, Craters". usgs.gov. Gazetteer of Planetary Nomenclature – International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN). Retrieved 10 August 2017.
  2. ^ "Categories for Naming Features on Planets and Satellites". usgs.gov. Gazetteer of Planetary Nomenclature – International Astronomical Union (IAU) Working Group for Planetary System Nomenclature (WGPSN). Retrieved 10 August 2017.

External links

This page was last edited on 29 August 2019, at 00:19
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.