TEMPERATURE OF REGOLITH IN COLD TRAPS ON THE MOON A.A. Berezhnoi Sternberg Astronomical Institute Moscow, Russia The hypothesis of the existence of the lunar ice in cold traps was stated in (Watson et al., ... Arnold, 1979) estimated the mean temperature on the surface of lunar cold traps as 40-90 K. We plotted the dependence of regolith mean temperature on depth for these two values of mean temperature on the surface (see figure 1). ... Arnold J.R. Ice in the lunar polar regions, J. Geophys. ...

... Astronomy 101 . ... Astronomers find first evidence of changing conditions on a super-Earth . The ability to peek into the atmospheres of rocky super-Earths and observe conditions on their surfaces marks an important milestone toward identifying habitable planets outside the solar system. ... This is the first time we ve seen such drastic changes in light emitted from an exoplanet, which is particularly remarkable for a super-Earth, said Nikku Madhusudhan of Cambridge s Institute of Astronomy. ...

... Optical properties of oxide dust grains. ... Optical constants: . ... The deternimation of the optical constants was made from measured reflectance at near normal incidence of the polished sample surfaces (0.2 - 500 micron) with following Lorentz oscillator fit (typically 5 oscilators) from ultraviolet to mid-infrared and Kramers-Kronig analysis in the region of the infrared vibrational bands. The oxides Fe x Mg 1-x O for x = 1.0, 0.9, 0.8, 0.7, 0.5, and 0.4 were considered in the paper. ...

To order one of the possible additional functions use list box at the top left of the Select elements dialog box. ... On each element El in this column one can impose selection conditions of the types . ... El >= B AND El <= C. If B > C, then selection will contain all minor planets with element El complying with disjunction of conditions: . ... If conditions are imposed on several elements, then selection contains only those minor planets, which satisfy all requirements. ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

... Space flight . Crew training . ... Orlan-DMA-GN" is used in the neutral buoyancy facility of the Yu. Gagarin Cosmonaut Training Center and is designed for cosmonauts training under neutral buoyancy conditions for mastering the forthcoming EVA operations programs. ... Since there is an air between the space suit layers and the cosmonaut's body, the reverse affectation decreases sharply (a peculiar self-control of an organism, mostly subconscious, which flows via the feedback channels). ...

... Clear conditions, temperature ~16F, network to sundog. 16 mm f/1.4 lens 1 second exposure times 32 16-bit frames captured with frames buffered on the camera coadded dark frames in AIJ, divided by 12, subtracted from data stack aligned data stack using apertures coadded data stack of 12 dark-subtracted frames Stars visible to <8 mag The "NSEW" image polaris_sky5_1s_16mm_f1p4_darksub_nsew.png shows the sky as it would appear facing north in the northern hemisphere. ...

... Many observatories around the world will follow these events, with the purpose of obtaining accurate measurements of the angular diameter of this red giant, from the recording of the lightcurve during the disappearance (or reappearance) behind the limb of the Moon. ... 6 November 1998: both disappearance and reappearance recorded under very good conditions at the TIRGO observatory by A. Richichi . ... A preliminary analysis confirms the findings of the previous event observed in February (see below)...

... Telescopes . ... Fig. ... Theoretical optical resolving power of the MSS, depending on the phases of the moon under typical weather conditions. ... The optical resolving power of the telescope with the MSS allows to observe stars of up to the 12 magnitude. ... Currently, more than 90% of observational time with the MSS spectrograph is used in the spectropolarimeter mode with a diffraction grating 24.7њ. ... wide spectral region with a reciprocal linear dispersion of 9 ?/mm (0.1215 ?/pix) at a time. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope 's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases Publication SSRT - Siberian Solar Radio Telescope . ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...