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[2] [3] It is classified as a complex crater because it features a central uplift, a transition zone, and a ring graben (a ring-shaped trough in the outer part of the crater). Although eroded, the original rim diameter has been estimated at 8 km (5.0 mi) and the age is estimated to be less than 320 million years ( Mississippian or younger). [ 2 ]
The peak of the Orionid meteor shower is Oct. 21, per NASA. This year, NASA's Watch the Skies blog writes that they can be best viewed on the mornings of Sunday, Oct. 20, and Monday, Oct. 21.
The Quadrantids (QUA) are a meteor shower that peaks in early January and whose radiant lies in the constellation Boötes.The zenithal hourly rate (ZHR) of this shower can be as high as that of two other reliably rich meteor showers, the Perseids in August and the Geminids in December, [4] yet Quadrantid meteors are not seen as often as those of the two other showers because the time frame of ...
Meteorite name Found year Region/Country Coordinates Group Classification Mass Image 1: Hoba: 1920: Grootfontein, Namibia: a] Ataxite: IVB: 60,000 kg (130,000 lb) 2: Cape York (Ahnighito) 1894: Meteorite Island, Greenland
A meteor streaks past stars in the night sky at the Mont-Tendre near Montricher in the Jura, north of Geneva, late August 12, 2009. The Perseid meteor shower is sparked every August when the Earth ...
On average, the Orionids produce anywhere from 10 to 20 meteors per hour at their peak in mid-to-late October. An exception came between 2006 and 2009 when the 50 to 75 meteors the Orionids put ...
The Orionids meteor shower, often shortened to the Orionids, is one of two meteor showers associated with Halley's Comet. The Orionids are so-called because the point they appear to come from, called the radiant , lies in the constellation Orion , but they can be seen over a large area of the sky.
Unlike most meteor showers, the Quadrantid meteor shower doesn't originate from a comet, but from an asteroid. For many years, the origin of the Quadrantids remained unknown. Though the ...