... Mars . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Martian dust imaged . ... NASA's Phoenix Mars Lander has taken the first-ever image of a single particle of Mars' ubiquitous dust, using its atomic force microscope. ... Such dust particles color the martian sky pink, feed storms that regularly envelop the planet and produce Mars' distinctive red soil. ... Only registered members of Astronomy.com are allowed to comment on this article. ...
... Bad Astronomy . ... Bitesize Astronomy . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... If the Universe is flat, it is forever balanced between open and closed; it will expand forever, but always slowing, just balancing gravity. ... Basically, if the Universe is open (will expand forever), closed (will eventually contract again) or flat (expanding just fast enough to balance gravity), you will see differences in the way the SN behave. ...
... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... LX70 Series . ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... LightBridgeтДв dobs give you high quality Meade optics, premium components, and ultra portability....
... 1 - 5 m HgCdTe Detector Material . Hybridization of 2048 x 2048 Arrays . ... Options for Extension to Visible Wavelengths . ... MBE HgCdTe Capability at Rockwell Science Center . ... Over the last two decades, dramatic improvements in the performance of 1 - 5 m infrared detector materials combined with the leap from single detectors to million pixel arrays have led to a billion-fold improvement in our ability to observe astronomical sources at these wavelengths. ...
... ASRAS HOME . ... For our educational outreach event, we hosted a Boy Scout troop in Ionia (Pix_1), for a sleep over this last spring and were able to make our Portable Radio Telescope (PBT - itty bitty radio telescope ) operational. ... The Solar Radio Telescope project is coming together nicely. ... You may have seen or heard of articles about the ongoing Solar RT project which is a Solar RF Spectrograph to study sunspots, presently being built for the ASRAS astronomy club (site in Ionia, NY). ...
... The unlocked gate at the entrance to the observatoryтАЩs gravel driveway should remain closed to prevent the public from driving back to the observatory. ... This means that if there are still members of the public present at the observatory who do not wish to leave by 11:30 PM they will be locked in the park until a keyholder leaves and secures the gate(s) behind him/her. ... Roll the roof back using the hand crank near the computer room. ... Amateur Astronomers Association of Princeton, Inc., ...
... The second "Hey, I already thought of that!" experience I had was when I read the quote from you saying that modern physics seems to have left consciousness out of the equation. ... I forget if it was in response to Chisholm's book, but sometime for that course, I wrote a short paper outlining my theory, which was that the conscious experiences we have are not part of today's physics Standard Model (they didn't call it that in 1969). ... A model is like a road map. ... Sincerely, Mark Trueblood ...
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
... Recent applications of multi-spectral imaging in auroral research are combining these dimensions, providing a new perspective on the poorly understood physics of magnetosphere-ionosphere coupling. ... He is an Associate Editor for the Journal of Geophysical Research. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
Optimized MASS device for synchronous measurements with Paranal DIMM. ... System 1.2.2 Fabry lens . ... 3.2 Device alignments at the telescop 3.2.1 Fabry lens p osition . ... Optical layout of MASS device in ZY plane . Optical layout of the MASS device in ZX plane MASS segmentator . ... Other values are explained in text. working entrance pupils for the MASS devices can b e defined in reverse light path as the images of these pupil stops pro duced by the Fabry lens + telescop e optical system. ...
... All the galaxies are divided into 4 groups depending on the environment type; every subsample contains more than 10 galaxies. ... An effect of environments is seen both for the nuclei and for the bulges: if we consider the clusters (Virgo and Ursa Ma jor) and group centers as dense environments and the field and group periphery as sparse environments, then in the dense environments the stellar populations of S0s are in average older by 45 Gyr than in the sparse ones. ...
... In this case, the main vortex in the Benard cell is decomposed into smaller ones as a result of ten perioddoubling bifurcations. It is shown that the resulting turbulence is coherent and determinate; the fractal character (local selfsimilarity) of its spectrum is found. ... It is shown that the real atmospheric turbulence is the result of mixing of different coherent structures. ... COHERENT STRUCTURE IN A CLOSED ROOM The scheme of measurements in the LSVT spectrograph pavilion is shown in Fig. ...
... 337, 275292 (2002) The correlation of line strength with luminosity and redshift from composite quasi-stellar object spectra S. M. Croom,1 K. Rhook,1 E. A. Corbett,1 B. J. Boyle,1 H. Netzer,2 N. S. Loaring,3 L ... We measure highly significant Baldwin effects for most broad emission lines (C IV 1549, C III] 1909, Mg II 2798, H ,H ) and show that they are predominantly caused by correlations with luminosity, not redshift. ... The correlations of log W with log(1 + z ) for each line. ...