Cannabaceae

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Al-Haddar
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Al-Haddar crater (top) as seen by the Cassini spacecraft on March 9, 2005
Location50°32′N 200°38′W / 50.54°N 200.64°W / 50.54; -200.64[1]
Diameter15 km[1]
DiscovererVoyager 2
NamingAl-Haddar; The barber's second brother in "The Hunchback’s Tale"

Al-Haddar is an impact crater on Saturn's moon Enceladus, first discovered by the Voyager spacecraft. It is named after Al-Haddar, one of the barber's six brothers in "The Hunchback's Tale" from The Book of One Thousand and One Nights.

Al-Haddar is located at 50.5° North Latitude, 200.6° West Longitude and is approximately 14 kilometers across.[1] It is the northernmost and smallest crater of a prominent crater triplet on Enceladus' anti-Saturnian hemisphere[2] (there is no evidence that the impacts are related or were formed from the break-up of a single body, like Shoemaker-Levy 9). Voyager 2 observations of Al-Haddar revealed a bowl-shaped, simple crater, compared to its larger, more complex southern neighbors, Shahrazad and Dunyazad craters. The crater was mostly in shadow during the Cassini Spacecraft's close flyby on March 9, 2005, but numerous tectonic fractures were observed along its northern rim.

References

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  1. ^ a b c "Al-Haddar". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ^ "Shahrazad (Se-4)". PIA12783: The Enceladus Atlas. NASA / Cassini Imaging Team. Retrieved 2012-02-04.


source: https://en.wikipedia.org/wiki/Al-Haddar

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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