Astronotes Armagh Planetarium's Stellar Blog! ... Earth Satellites . ... In 1943, Tombaugh unsuccessfully tried to track asteroid 2101 Adonis , this was one of the first near- earth asteroids discovered back in 1936. ?аTombaugh also proposed that perhaps some of these small asteroids could be captured by our planetтАЩs gravitational attraction and become natural satellites of the Earth .?а A Near Earth Satellite search proposed by Tombaugh in 1952 funded by the Army Office of Ordnance ...

... Home Articles NYC Urban Starfest ? Background & History of the Event . ... Urban Starfest in Central Park . ... Beyond New York City . ... A History of the First Forty Years of the Amateur Astronomers Association . ... NYC Urban Starfest - Background History of the Event . ... Today the NYC Urban Starfest, while somewhat smaller in nature & scope, but still a most wonderful event, is solely coordinated and directed by the Amateur Astronomer?s Association and the NYC Urban Park Rangers. ...

... O b jec tive To explain the process used to choose the lenses for the MROI delay line beam expanders. ... That the expanders introduce no more than 0.05 of RMS wavefront error to an initially perfectly collimated beam; 6. ... The mounting scheme we have designed for the beam expander lenses uses the surface of the lenses to register them in the optical tube assembly and we expect this to mitigate to a large extent the lens fabrication errors we have described above (see right hand panel of figure 2)...

... sensitivity (esensitivity-1.8) [xmmsas_20080701_1801-8.0.0] ... source . The detection box usually excludes a significant portion of the Point Spread Function or PSF of the source... images. Note that, although the name eboxdetect starts with an `e', the detection stage is not EPIC- nor even XMM-specific. ... This row represents more or less the average of the column values from the individual bands, although columns such as SCTS are simply summed to give the summary-row value. ...

Supernova discovery statistics for 1998 . ... Sorted by Name For the year 1998 , 165 supernovae and 0 extragalactic novae were reported. 159 of these supernovae were named by CBAT, 0 were given possible supernova designations, and 6 were not reported to CBAT. 42 supernovae were found in NGC/IC galaxies, 68 were found in named galaxies 24 objects were discovered by amateurs 3 were brighter than 13th Magnitude 21 were brighter than 16th Magnitude 59 were brighter than 18th Magnitude 77 ...

... What's New? Bad Astronomy . ... Site Info . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... By now, most everyone has heard the news that a group of people in California has committed mass suicide, claiming that it would enable them to meet a spaceship flying along with the comet Hale-Bopp. ... I received an email from a Bad Reader basically laying the blame for all this on the people purveying the Bad Astronomy. ... One of the best Hale-Bopp comet sites, AT JPL . ...

... Tonight's Sky . ... Astronomy for Kids . ... Scientists debate Pluto's fate . Planetary scientists discussing a proposed definition for "planet" warmed to an alternative that would leave Pluto out in the cold. ... Will astronomers reclassify Ceres, Pluto's largest moon, and Xena (2003 UB 313 ) as planets? ... A proposed definition of "planet" that would let Pluto remain one and also add three objects including Pluto's largest moon was roundly defeated in a poll during the first debate on the plan. ...

... Everyone interested in the philosophy of consciousness and identity also should read this book. ... I sent a couple rather naive letters to Prof. Chalmers (copies of which I enclose) more than two years ago, and he kindly responded by suggesting that I read the papers listed on his Web site, some of which I have read in my sparse spare time. ... There is no doubt that computers will one day be intellectually superior to today's humans, and will, eventually, pass the Turing Test. ...