Title: Chandra observations of the old pulsar PSR B1451-68 Authors: B. Posselt, G. G. Pavlov, R. N. Manchester, O. Kargaltsev, G. P. Garmire We present 35 ks Chandra ACIS observations of the 42 Myr old radio pulsar PSR B1451-68. A point source is detected 0.32" ±0.73" from the expected ra...
Title: The quest for companions to post-common envelope binaries. II. NSVS14256825 and HS0705+6700 Authors: K. Beuermann (1), P. Breitenstein (2), B. Ddebski (3), J. Diese (4), P. A. Dubovsky (5), S. Dreizler (1), F. V. Hessman (1), K. Hornoch (6), T.-O. Husser (1), G. Pojmanski (7), M. Wolf (8), P...
National Science Day is celebrated in India on February 28 each year to mark the discovery of the Raman effect by Indian physicist Sir Chandrasekhara Venkata Raman on 28 February 1928. Read more National Science Day Celebrati...
Discoverer 1 was the first of a series of satellites which were part of the Corona reconnaissance satellite program. It was launched on a Thor-Agena rocket on February 28, 1959 at 09:49 UT from Vandenberg Air Force Base in California. It was a prototype of the KH-1 satellite, but did not contain eithe...
Exhibition by Nicki MacRae. Friday, March 9, 2012 at 10:00am until Wednesday, April 11, 2012 at 4:00pm For Arts Sake Gallery, 6 Bridge Street, Kirkwall, Orkney KW15 1HR, Kirkwall Exhibition of landscape and abstract paintings inspired by Orkneys weather, light and ancient places. [url=https:/...
Orbital elements:
2012 DA33 Earth MOID = 0.0378 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 64.51431 (2000.0) P Q
n 0.71296686 Peri. 56.85246 +0.72945428 -0.68340682
a 1.2409563 Node 346.18124 +0.57983784 +0.64041276
e 0.5632329 Incl. 7.01765 +0.36288362 +0.35046628
P 1.38 H 22.6 G 0...
Orbital elements:
2012 DZ32 Earth MOID = 0.2167 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 356.89730 (2000.0) P Q
n 0.26499819 Peri. 152.86680 -0.99498607 +0.06538673
a 2.4005317 Node 31.16659 -0.09491021 -0.85593327
e 0.4976427 Incl. 8.40859 +0.03153987 -0.51293549
P 3.72 H 21.3 G...
Orbital elements:
2012 DY32 Earth MOID = 0.0097 AU
Epoch 2012 Mar. 14.0 TT = JDT 2456000.5 MPC
M 90.60900 (2000.0) P Q
n 0.87431373 Peri. 259.48241 +0.52691718 -0.84771635
a 1.0831564 Node 158.38124 +0.83016747 +0.49792939
e 0.1669550 Incl. 9.54866 +0.18215447 +0.18287515
P 1.13 H 22.7 G...
Title: The Pulsation Period of the Hot Hydrogen-Deficient Star MV Sgr Authors: John Percy, Rong Hannah Fu MV Sgr is a hot, hydrogen-deficient star which has undergone R CrB fadings. We have used self-correlation analysis and Fourier analysis of CCD V photometry in the AAVSO International Databas...
The smallest planet circling a main sequence star has been found.
High precision, high cadence radial velocity monitoring over the past 8 years at the W. M. Keck Observatory reveals evidence for a third planet orbiting the nearby (4.69 pc) dM4 star GJ 876 (HIP 113020).
The r...
Raman effect discovered on the 28th February, 1928. Raman scattering or the Raman effect is the inelastic scattering of a photon. It was discovered by Sir Chandrasekhara Venkata Raman and Kariamanickam Srinivasa Krishnan in liquids, and by Grigory Landsberg and Leonid Mandelstam in crystals. R...
Daniel Chee Tsui (born February 28, 1939, Henan Province, China) is a Chinese-born American physicist whose areas of research included electrical properties of thin films and microstructures of semiconductors and solid-state physics. Read more [video=http://www.youtube.com/watch?v=kv...
Steven Chu (born February 28, 1948) is an American physicist and the 12th United States Secretary of Energy. Chu is known for his research at Bell Labs in cooling and trapping of atoms with laser light, which won him the Nobel Prize in Physics in 1997, along with his scientific colleagues Claude Cohen...
