... Home Gallery Club Events Pulkovo Observatory, St. Petersburgh, Russia . ... Clear Sky Chart . ... Beyond New York City . ... Pulkovo Observatory, St. Petersburgh, Russia . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by ....

. This photo of the Sun's edge, taken with the Solar Dynamics Observatory Atmospheric Imaging Assembly, shows coronal loops in a variety of sizes. Although the loops appear to have a constant width, like strands of rope, new work suggests that this is an optical illusion. The loops are actually tapered, wider at the top and narrower at the bottom. // NASA/SDO

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... Ida Woods . ... Earliest source: "[Observatory data analysis by women computers] ." ... I've dated this photo to March of 1898 based on a calendar visible in the image. ... Immediatly in front of her are Eve Leland (back row center) and Ida Woods to the right. ... Mabel Gill (or "Edith F. Gill" sipickwomen ) . ...

... All significant tables, images, and spectra published in journals should appear in the astronomical data centres. ... Journals, data centres, and users should collaborate to define formats, table descriptions, and metadata that are easy for authors to adhere to, and can automatically be entered by the data centres into their databases. ... Major astronomical journals and data centres should provide free or reduced-cost electronic access to institutions in developing countries. ...

An introduction to the celestial sphere, describing its . apparent rotation and the special role of the pole star. ... This lesson plan supplements the web page listed below. Originally named "The sky above us" , it was split into two parts, each of which now has a lesson plan. ... Celestial sphere, constellation, zodiac, celestial pole, the Pole Star ("Polaris"), celestial equator, rotation of the Earth, planets [theodolite, equatorial axis]. ... What makes the Pole Star special? ...

Trace: q3c-2011 . ... SAI VO Projects . ... Help on Wiki search . ... Title: Efficiently handling spherical data in Postgres . ... Abstract: Spherical data appear in a lot of problems in modern science and technology, ranging from geoinformational systems to astronomical catalogues. Efficient handling of such data in Postgres is necessary, and Postgres do have support for it, though not in core, through its ability to define fully indexable custom data types and functional indices. ... SAI VO | ...

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...

Images and text 2003 Paul Valleli . While up at Stellafane for pre-convention preparations, I spent some early morning times, experimenting with different videography setups on the 13" F/10 Schupmann at the McGregor Observatory. ... Mars was too bright and would have required neutral density filters. ... Next time, I will try 12mm and 9mm projections. ... I aquired about ten thousand frames by 3AM, at which time a breeze picked up and the seeing went to Hellas! ... 2003 Paul Valleli . ...

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

... He was born in Cholmogory - a village where one generation before him saw the first Russian observatory and Lomonosov was able to use the angle gaude. ... But the atmosphere of Venus was so "rich" that no only during four last years of Lomonosov's life, but even two centuries after his death the astronomers didn't go far away from his investigations. 200 years exactly after "the star year" of Lomonosov in 1961 the Soviet spaceship - the first in the world went to Venus. ...

Next: ZGSC (Compressed GSC) and XSKYMAP . ... This is a preliminary report on an investigation of the quality and properties of plates digitized during creation of the Guide Star Catalog (GSC). The results will be vital for reclassifying GSC objects. ... Many objects are measured on more than one plate, and thus have multiple catalog entries. ... Among the shortcomings of the GSC are: biased magnitudes and incorrect classifications for certain objects, presence of artifact objects. ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

As a result of preceding actions the File opening dialog box appears and user is suggested to open the file with observations (the file may be created for the first time). ... To see the list of files with desirable extension in chosen folder define the type of extension with the help of File type drop-down list at the bottom of the dialog box. ... The name of the file will appear in File name dialog box. ... In case you want to open the file with new name, type it in the File name dialog box. ...

. The XMM-Newton website has moved to the following location: . http://www.cosmos.esa.int/web/xmm-newton

... Yes, Exploding Comet 17P/Holmes is one of the strangest things ever seen by astronomers - professional and amateurs alike. ... We also had some club members who received some Astronomical League awards...and we'd like to congratulate them! ... It is again a potluck, and is being held at the Masonic Temple in Galion ( 1252 State Route 598, Galion , OH 44833) Here's a map: Map of 1252 State Route 598 Galion, OH 44833-9367, US And, along with the party come RAS elections for 2008! ... Comet 17P/Holmes ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

These images have been selected from those recorded with the telescopes at Mt. ... This is the full 25 arcminute field of view of the CDK700 with its Apogee U16 camera. ... Jupiter on November 1, 2011, at 07:06 UT was recorded with the CDK125 Shared Skies Live telescope and an AVT Prosilica GX-3300 video camera. ... The first quarter moon on August 17, 2010 at 02:20 UT was recorded through thin cirrus with the CDK125 Shared Skies Live telescope at Moore Observatory. ...

. General Information . Media Files . Participants . Timetable . Local Information . Photos . Back to the album list . Previous . Next Click the image to view it in fullsize. Previous . Next . ASM in twillight. Bright object above the tower is Venus, Mercury is just above the horizon and Saturn between them.