Astronotes Armagh Planetarium's Stellar Blog! ... Moon . ... According to Ron Miller, author of the respected history of spaceship concepts The Dream Machines , the first known appearance of the tale in print was in the 2 October Тљ1909 issue of Scientific American where the hero was named т??Wang Tuт?? ... Naming a crater after Wan Hu т??the legendary Chinese inventorт?? was proposed shortly after the Soviet probe Zond 3 flew past the Moon in July 1965 returning images of the Moon?s western farside. ...

Armagh Observatory, 1 March 1999 . According to Armagh Observatory, the total rainfall during February amounted to 2.00 inches, slightly less than the average February figure of 2.31 inches. ... Overall the month was quite mild with an average temperature of 5.8 degrees Celsius (42.4 degrees Fahrenheit) compared with the mean February value of 4.2 degrees C (39.5 degrees F). ... FOR FURTHER INFORMATION CONTACT: John McFarland at the Armagh Observatory. ... Last Revised: 15th June 1999 . ...

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

... According to modern views on the evolution and origin of stars, most of the stars are members of binary systems. ... After the second explosion, the pairs tend to break up and neutron stars and/or black holes fly apart. High velocities of radio pulsars are apparently largely due to this effect. ... For all possible pairs the probability of trajectory approach at small distances for the epoch, corresponding to the age of the younger pulsar have been evaluated. ... Pulsars J0543+2329 and J0528+2200. ...

... Popper (1959) classified the eclipsing components as B8 V and B9.5 V. According to Wolff and Preston (1978) the primary component (B8) is a HgMn star. Spectroscopic elements were determined by Wyse (1936) from observations made in the years 1934 - 1935 and by Harper (1937) from observations 1935 -1936. ... Rachkovskaya (1985) according to Harper - 2.68 and 2.36 observed the star in the years 1967 -1968 and 1981 - 1982 and obtained the mass ratio q » 1. ...