Title: RX J1548.9+0851, a fossil cluster? Authors: P. Eigenthaler, W.W. Zeilinger Fossil galaxy groups are spatially extended X-ray sources with X-ray luminosities above L_X,bol > 10^42 h_50^-2 ergs s^-1 and a central elliptical galaxy dominating the optical, the second-brightest galax...
NASA'S Spitzer Sees Crystal "Rain" In Outer Clouds Of Infant Star Tiny crystals of a green mineral called olivine are falling down like rain on a burgeoning star, according to observations from NASA's Spitzer Space Telescope. This is the first time such crystals have been observed in...
How heavy can a star be? This conundrum has haunted astronomers for decades. Theory indicates that there should be an upper stellar mass limit somewhere between 120 and 300 solar masses. Even though heavy stars are very bright, measurements of their masses can be complicated. The majority of the he...
Unidentified Fireball in Wisconsin Sky Was it a meteor shower? Or something else? That question on the mind of many Wisconsinites Wednesday night. Area Sheriffs departments received dozens of calls reporting a large fireball in the sky around 10 p.m. [url=http://www.wtaq.com/news/articles/...
Title: The Cratering History of Asteroid (2867) Steins Authors: S. Marchi (1), C. Barbieri (1), M. Kueppers (2), F. Marzari (1), B. Davidsson (3), H.U. Keller (4), S. Besse (5), P. Lamy (5), S. Mottola (6), M. Massironi (1), G. Cremonese (7) ((1) Padova University, (2) ESA-ESAC Madrid, (3) Uppsala U...
The 370 - 820 metre wide asteroid 2001 RN will make a close pass (60.6 lunar distances, 0.1558 AU), travelling at 17.72 km/second, to the Earth-Moon system on the 20th February, 2013 @ 09:55 UT ±00:01. See more The Lunar Distance (LD), the distance between Earth and the Moon, equals 384,401 km, (or 0...
RSPB Ham Wall 'slime' baffles experts Scientists at a nature reserve in Somerset have been baffled by a jelly-like slime which has appeared in a number of locations at the site. Experts are divided over the origin of the jelly which has been found on grass banks away from the water's edge at the RSPB's H...
Title: A-STAR: The All-Sky Transient Astrophysics Reporter Authors: J. P. Osborne, P. O'Brien, P. Evans, G. W. Fraser, A. Martindale, J.-L. Atteia, B. Cordier, S. Mereghetti The small mission A-STAR (All-Sky Transient Astrophysics Reporter) aims to locate the X-ray counterparts to ALIGO and o...
Title: Simulations of micrometeoroid interactions with the Earth atmosphere Authors: G. Briani, E. Pace (Univ. di Firenze), S. N. Shore (Univ. di Pisa, INFN-Pisa), G. Pupillo (INAF - Istituto di Radioastronomia), A. Passaro (Alta S. p. A.), S. Aiello (Univ. di Firenze) Micrometeoroids (cosmic...
Orbital elements:
2013 DX Earth MOID = 0.1062 AU
Epoch 2013 Apr. 18.0 TT = JDT 2456400.5 MPC
M 21.98611 (2000.0) P Q
n 0.35462669 Peri. 351.71828 -0.80404738 -0.59416974
a 1.9767653 Node 151.79317 +0.54809764 -0.75484830
e 0.4466573 Incl. 2.62931 +0.23042741 -0.27778836
P 2.78 H 24.6 G 0....
Fireballs light up skies over Cuba, US Cubans watched in awe as a fireball soared across the twilight sky before exploding - one day after a destructive meteor shower in Russia injured more than 1200 people. Twitter comments suggest the Cuban meteor was visible from many parts of the island nation ar...
Brecon Beacons National Park wins dark sky status The night sky above the Brecon Beacons National Park has been granted special protection. It has become Wales' first and only the fifth destination in the world to be granted the status of an international dark sky reserve. [url=http://www.bbc.c...
Title: Asteroseismic determination of obliquities of the exoplanet systems Kepler-50 and Kepler-65 Authors: W. J. Chaplin, R. Sanchis-Ojeda, T. L. Campante, R. Handberg, D. Stello, J. N. Winn, S. Basu, J. Christensen-Dalsgaard, G. R. Davies, T. S. Metcalfe, L. A. Buchhave, D. A. Fischer, T. R. B...
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