... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Meade Instruments Corporation . ... Refracting telescopes (Meade Models NG-60, NGC-60, DS-2070AT, ETX-70AT, LXD55-AR5, LX55-AR6 ) and mirror-lens telescopes ( ETX-90AT, 105AT, 125AT, LXD55-SC8, 8LX90, LX200 GPS Series ) are generally more versatile in a wide array of land and astronomical applications. ... The intermediate-level observer, or the non-casual telescope user who wishes to purchase one telescope for a lifetime, should consider a Meade Model LXD55 series, 8LX90, or LX200GPS. ... Meade 4M ...

... Clubs . ... PUBLIC Telescopic observing is conducted at the Wheaton College Observatory every clear Friday (call for times) when college is in session. ... The College has a 12.5 " Newtonian/cassegrain telescope. ... For more information see the North Shore Amateur Astronomy Club page. ... For more information see the North Shore Amateur Astronomy Club page and the college's page . ... Aldrich Astronomical Society Paxton, MA . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Local Group . ... When amateur astronomers grow old and wish to donate their telescope and observatory to their local club, who assesses the value? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

... A wordlwide network of amateur and professional astronomers record and time the mutual eclipses and occultations of the Galilean satellites as accurately as possible. ... Already, the acceleration of Io is evident in the data and continued monitoring through this coming season will help pin down the acceleration of the other three satellites. ... From Dr Apostolos Christou, Armagh Observatory: . ... If you want to know the observing times from your location get it by filling in this form . ...

... Up: Software Systems and Tools . ... This case study examines the use of the latest software techniques for merging independent Java applets and applications. STScI's new Java interface to the archive, StarView II, will make use of the ST-ECF stand-alone FITS image viewer JIPA. We discuss how state-of-the-art software techniques like Remote Method Invocation (RMI), multithreading, and the Reflection API influence the design of a common interface between StarView II and JIPA. ...

Designed to "recognize significant contributions to astronomy or amateur astronomy by those not employed in the field of astronomy in a professional capacity." ... CCD Imaging . ... RCrb stars/Variable Star Monitoring . ... Visual and CCD Observations of Variable Stars/Comets . ... Imaging and Image Processing . ... Computing Comet Orbits . ... Variable Stars/Comets . ... Variable Stars/Occultations . ... Variable Stars . ... Planetary Imaging . ... Photoelectric Photometry of Variable Stars . ...

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

European . ... Public . Science . ... Science Users Information Future Facilities and Development E-ELT jump to navigation jump to content . ... E-ELT . ... The Telescope . ... Gallery and Links . ... Observing with ESO Telescopes . ... There are a number of ongoing or completed design studies for telescopes with diameters upwards of 20 metres. ... The FP6 ELT Design Study is conducted jointly by European research institutes and industry, and it is sponsored by the European Commission. ...