Orbital elements:
2005 XN4 Earth MOID = 0.1518 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5 MPC
M 49.40405 (2000.0) P Q
n 0.38305470 Peri. 93.60033 -0.51933851 -0.29781998
a 1.8777115 Node 70.74065 -0.23138640 -0.85328925
e 0.5813912 Incl. 58.04657 +0.82264685 -0.42801952
P 2.57 H 19.8 G 0....
The Kunya-Urgench meteorite impacted at 17:25 local time on June 20, 1998 in Turkmenistan. The largest fragment (~900kg) made a crater 6 metres-wide and 4 metres deep, impacting the ground only 30-50 metres away from farmers working in a cotton field. The meteorite is classified as a H5 chondrite....
A meteorite that fell in Piplia Kalan, a western Rajasthan village, has changed the way scientists think about the birth of the solar system. Piplia Kalan is a small, nondescript village in Pali district in western Rajasthan. People outside the district would not even have heard its name. Yet, it is...
Dr. Ulf Dietrich Merbold (born June 20, 1941) is the first West German citizen and second German native to fly in space. He is also the first member of the European Space Agency Astronaut Corps to participate in a spaceflight mission. Read more
John Stefanos Paraskevopoulos (June 20, 1889 - March 15, 1961) was a Greek/South African astronomer. He co-discovered a couple of comets. The crater Paraskevopoulos on the Moon is named after him. Read more
There is one well documented annual meteor shower which is associated with the constellation of Ophiuchus which peaks on or about June 20 of each year - the Ophiuchids. The radiant - or point of origin - for this meteor shower is near Sagittarius border. The fall rate varies from average 8 to 20 meteors...
Title: The Magellanic Quasars Survey. II. Confirmation of 145 New AGN Behind the Southern Edge of the Large Magellanic Cloud Authors: Szymon Kozlowski (1), C. S. Kochanek (2,3), A. M. Jacyszyn (1), A. Udalski (1), M. K. Szymanski (1), R. Poleski (1), M. Kubiak (1), I. Soszynski (1), G. Pietrzynski (...
Rare heart-shaped meteorite turns up in man's backyard It was sitting in a small indentation, like it had been there a long time - or that it hit the ground at a high speed. He picked it up and discovered the rock was shaped like a heart, and it was unlike any rock he'd seen before. About four inches across,...
Blaise Pascal (June 19, 1623 - August 19, 1662), was a French mathematician, physicist, inventor, writer and Catholic philosopher. He was a child prodigy who was educated by his father, a Tax Collector in Rouen. Pascal's earliest work was in the natural and applied sciences where he made important...
The First Council of Nicaea was a council of Christian bishops convened in Nicaea in Bithynia (present-day znik in Turkey) by the Roman Emperor Constantine I in early June, A.D. 325. The Council was the first effort to attain consensus in the church through an assembly representing all of Christend...
The European Renaissance had drawn inspiration and impetus from Europe's discovery of the achievements of the Islamic world during the Middle Ages. That is well documented, of course, but the story of what began in England in the 17th and early 18th centuries has until now remained largely hidden....
6 Free E-Books on C and C++ This week Microsoft announced that it's working on making C++ better suited for massive parallelism. This follows Google's recent benchmarks that showed that C++ is still faster than most programming languages (at least if you know how to optimize it correctly). Also, Go...
David B. Healy (1936 - 2011) was an American astrophotographer and asteroid discoverer who is known for his contributions to Burnham's Celestial Handbook. Read more
Anania Shirakatsi (also known as Ananias of Shirak; 610 - 685) was an Armenian mathematician, astronomer and geographer. He is commonly attributed to having written the Geography (Ashkharhatsuyts, in Armenian). Read more
