* Astronomy

ATel 6411: iPTF confirmation of M31 nova 2014-07a

China launches world's deepest particle-physics experiment - but it joins a crowded field. Ongoing dark matter experiments in Italy, the United States and Japan are now being joined by a fourth in China, called PandaX. Installed in the deepest laboratory in the world, 2,500 metres under the marbl...

Title: Limits on the Size and Orbit Distribution of Main Belt Comets Authors: S. Sonnett, J. Kleyna, R. Jedicke, J. Masiero The seven known main belt comets (MBCs) have orbital characteristics of main belt asteroids yet exhibit dust ejection like comets. In order to constrain their physical and or...

Galileo satellites go into wrong, lower orbit - Esa The European Space Agency (Esa) says the latest two satellites for Europe's version of the American GPS satellite navigation system have not gone into the correct orbit. However, it says the fifth and sixth satellites launched from French Guiana...

Best View Yet of Merging Galaxies in Distant Universe Using the Atacama Large Millimeter/submillimeter Array (ALMA), and many other telescopes on the ground and in space, an international team of astronomers has obtained the best view yet of a collision that took place between two galaxies when t...

Orbital elements: 2014 QN266 Earth MOID = 0.0007 AU Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 MPC M 185.82883 (2000.0) P Q n 0.91220809 Peri. 61.77362 -0.60270185 +0.79796541 a 1.0529476 Node 171.16238 -0.73505879 -0.55455195 e 0.0925602 Incl. 0.48570 -0.31054639 -0.23605792 P 1.08 H 25.9 G...

The Battle of Plataea was the final land battle during the second Persian invasion of Greece. It took place in 479 BC near the city of Plataea in Boeotia, and was fought between an alliance of the Greek city-states, including Sparta, Athens, Corinth and Megara, and the Persian Empire of Xerxes I. Read...

NGC 113 (also MCG -1-2-16 and PGC 1656) is a magnitude +13.1 elliptical galaxy located 205 million light-years away in the constellation Cetus. The galaxy was discovered by German astronomer Wilhelm Tempel using a 27.94 cm (11 inch) f/19 refracting telescope at the Arcetri Observatory on the 27th...

NGC 721 (also IRAS 01517+3908, MCG 6-5-43, UGC 1376 and PGC 7097) is a magnitude +13.5 spiral galaxy located 257 million light-years away in the constellation Andromeda. The galaxy was discovered by German astronomer Heinrich Louis d'Arrest using a 27.94 cm (11 inch) f/17.5 refractor at the Copen...

NGC 7363 (also IRAS 22409+3344, MCG 6-49-78 and PGC 69580) is a magnitude +13.8 face-on barred spiral galaxy located 309 million light-years away in the constellation Pegasus. The galaxy was discovered by German astronomer Heinrich Louis d'Arrest using a 27.94 cm (11 inch) f/17.5 refractor at th...

Solar Storm Mini-forecast (Mobile Update) 08-26-14

Solar Storm Mini-forecast (Mobile Update) 08-26-14

Comet 231P/LINEAR-NEAT makes its closest approach to the Earth (2.072 AU) on the 2nd March, 2011. Ephemeris Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2011 03 01 10 54 07.7 +15 46 12 2.0721 3.0560 171.8 2.6 18.8 2011 03 02 10 53 31.1 +15 53 39 2.0718 3.0554 171.5 2.7 18.8 2011 03 03 10 52 54.4 +16 01 0...

The 280 - 620 metre wide asteroid 2014 HE3 will make a close pass (49.0 lunar distances, 0.1260 AU), travelling at 12.19 km/second, to the Earth-Moon system on the 27th August 2014 @ 01:21 UT ±00:02. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00...

The 28 - 63 metre wide asteroid 2014 QD33 will make a close pass (14.3 lunar distances, 0.0369 AU), travelling at 12.49 km/second, to the Earth-Moon system on the 27th August 2014 @ 06:44 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.002...

The 22 - 49 metre wide asteroid 2014 QZ265 will make a close pass (11.0 lunar distances, 0.0282 AU), travelling at 14.69 km/second, to the Earth-Moon system on the 27th August 2014 @ 11:06 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0.00...