Lessons learned from the Thirty Meter Telescope site testing Tony Travouillon Sebastian Els, Angel Otarola, Reed Riddle, Matthias Schoeck, Warren Skidmore TMT.XXX.PRE.05.0XX.DRF01 1 Introduction TMT and its Site testing. Important choice before going on site. ... Considerations during analysis of the data. TMT.XXX.PRE.05.0XX.DRF01 2 Some Background about the TMT Site Testing TMT is a 30m, segmented, RitcheyChretien telescope design. ... ASCA Cloud Cover Analysis So how do we do it in practice? ...

... International astronauts are those individuals from international space agencies who have trained or served with NASA Astronauts. Astronaut assignments and category definitions (e.g., "active" astronauts, "management" astronauts) are contained in a separate Flight Operations Directorate (FOD) policy letter. Former astronauts are those who are no longer employed by their agency. Active and Management International Astronauts . Astronaut . ... Former International Astronauts . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

... 19 љ*</tt>: landscape textures and data files</li> . ... 73 љIf a file exists in the <em>User Data Directory</em>, it will be used in preference to a file with the same name existing in the <em>Installation Data Directory</em>. ... 79 љ <li>Users who modify files in the <em>Installation Data Directory</em> will likely have their work deleted or overwritten when they upgrade Stellarium. ... In this case , all the files would be in the <em> \<Installation Data Directory>/stars/default</em> directory. ...

Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

... Description of e-Mail Commands . Abstract and Paper preparation for Put . ... Physics hep-th @ xxx.lanl.gov High Energy Physics - Theory, 8/91 hep-lat @ xxx.lanl.gov High Energy Physics - Lattice, 2/92 hep-ph @ xxx.lanl.gov High Energy Physics - Phenomenology, 3/92 cond-mat @ xxx.lanl.gov Condensed Matter, 4/92 astro-ph @ xxx.lanl.gov Astrophysics, 4/92 gr-qc @ xxx.lanl.gov General Relativity Quantum Cosmology, 7/92 nucl-th @ xxx.lanl.gov Nuclear Theory, 10/92 chem-ph @ ...

Galaxies are diffuse objects which are imaged against a background of finite brightness and noise. Galaxies which have the maximum contrast with respect to this background are the ones that are first discovered. ... These galaxies have been missed to date but active surveys for them are underway. ... In this page we present several examples of these newly discovered Low Surface Brightness galaxies as well as examples of high surface brightness galaxies. ...