Title: A search for light dark matter in XENON10 data Authors: J. Angle, E. Aprile, F. Arneodo, L. Baudis, A. Bernstein, A. Bolozdynya, P. Brusov, L.C.C. Coelho, C.E. Dahl, L. DeViveiros, A.D. Ferella, L.M.P. Fernandes, S. Fiorucci, R.J. Gaitskell, K.L. Giboni, R. Gomez, R. Hasty, L. Kastens, J. K...
Orbital elements:
2012 LG4 Earth MOID = 0.0091 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 219.84768 (2000.0) P Q
n 0.81818391 Peri. 100.18487 +0.96931162 -0.04531770
a 1.1321451 Node 262.71559 -0.04549275 +0.93282035
e 0.3108697 Incl. 14.09842 +0.24158932 +0.35748077
P 1.20 H 23.5...
Orbital elements:
2012 LK2 Earth MOID = 0.4144 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 10.18757 (2000.0) P Q
n 0.27915053 Peri. 22.92506 -0.59225797 -0.57123843
a 2.3186956 Node 108.84238 +0.61439613 -0.77644619
e 0.8457655 Incl. 36.90105 +0.52129444 +0.26611645
P 3.53 H 17.1 G 0...
Orbital elements:
Work in progress MPEC 2012 - L26 The 58 - 130 metre wide asteroid 2012 LP1 will make a close pass (33.3 lunar distances, 0.0855 AU), travelling at 11.68 km/second, to the Earth-Moon system on the 14th June, 2012 @ 21:38 UT ±01:33. [url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2...
Most eyepieces nowadays have threaded barrels to accept filters. Quality diagonals also may have threaded barrels, (which is convenient, as you do not have to swap filters when changing eyepieces). Quality filters should also be 'stackable' allowing two or more(?) filters to be used at the same t...
Harold Clayton Urey FRS (April 29, 1893 - January 5, 1981) was an American physical chemist whose pioneering work on isotopes earned him the Nobel Prize in Chemistry in 1934. He played a significant role in the development of the atom bomb, but may be most prominent for his contribution to theories on...
Australia plans huge marine reserve in Coral Sea The Australian government says it plans to establish the world's largest marine reserve in the Coral Sea. Environment Minister Tony Burke said the protected zone would cover an area more than one-and-a-half times the size of France. New fishing lim...
A difference engine is an automatic, mechanical calculator designed to tabulate polynomial functions. In 1822, Charles Babbage proposed the use of such a machine in a paper to the Royal Astronomical Society on 14 June entitled "Note on the application of machinery to the computation of astr...
Title: Long-Term Stability of Horseshoe Orbits Authors: Matija Cuk, Douglas P. Hamilton, Matthew J. Holman Unlike Trojans, horseshoe coorbitals are not generally considered to be long-term stable (Dermott and Murray, 1981; Murray and Dermott, 1999). As the lifetime of Earth's and Venus's hor...
'Extremely little' telescope discovers pair of odd planets Even small telescopes can make big discoveries. Though the KELT North telescope in southern Arizona carries a lens no more powerful than a high-end digital camera, it's just revealed the existence of two very unusual faraway planets. O...
Title: The HD 192263 system: planetary orbital period and stellar variability disentangled Authors: Diana Dragomir, Stephen R. Kane, Gregory W. Henry, David R. Ciardi, Debra A. Fischer, Andrew W. Howard, Eric L. N. Jensen, Gregory Laughlin, Suvrath Mahadevan, Jaymie M. Matthews, Genady Pilya...
Title: Discovery of New Faint Northern Galactic Planetary Nebulae Authors: Agnes Acker, Henri M. J. Boffin, Nicolas Outters, Brent Miszalski, Laurence Sabin, Pascal Le Du, Filipe Alves We present the discovery of 6 nebular objects made by amateur astronomers. Four of these discoveries are clea...
Title: 9 Sgr: uncovering an O-type spectroscopic binary with an 8.6 year period Authors: G. Rauw, H. Sana, M. Spano, E. Gosset, L. Mahy, M. De Becker, P. Eenens The O-type object 9 Sgr is a well-known synchrotron radio emitter. This feature is usually attributed to colliding-wind binary systems, bu...
Kelallur Nilakantha Somayaji (1444-1544) (also referred to as Kelallur Comatiri) was a major mathematician and astronomer of the Kerala school of astronomy and mathematics. One of his most influential works was the comprehensive astronomical treatise Tantrasamgraha completed in 1501. Rea...
