... Movie: Cassini Crosses Saturns Ring Plane . 31.01.2007 . ... Castle and Sky . ... While Comet McNaught ruled southern skies, last week's conjunction of the Moon and Venus could be enjoyed by denizens of both hemispheres of planet Earth. ... A Comet Tail Horizon . ... To the surprise of many Northern Hemisphere observers, the tail of Comet McNaught remained visible even after the comet's head set ahead of the Sun. ... Comet McNaught, the Great Comet of 2007, has grown a long and filamentary tail. ...

... 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. ...

... 2013 November 17 . The Magnificent Tail of Comet McNaught . Image Credit Copyright: Robert H. McNaught . ... The magnificent tail spread across the sky and was visible for several days to Southern Hemisphere observers just after sunset. ... During some times, just the tail itself estimated to attain a peak brightness of magnitude -5 (minus five), was caught by the comet's discoverer in the above image just after sunset in January 2007 from Siding Spring Observatory in Australia . ...

... Observatory . ... Science . User Portal . ... Science Users Information . ... Science Archive Facility . ... Science Announcements . ... These pages are aimed at ESO community astronomers and contain all the information required in order to prepare, execute, process and exploit observations with ESO facilities. ... The Archive Science Group apologize for any inconvenience this may cause to Phase 3 users! ... The Growth of the User Community of the La Silla Paranal Observatory Science Archive . ...

... November 12, 1996 . Comet Hale-Bopp Passes M14 . ... Explanation : Comet Hale-Bopp continues its slow trek across the night sky, and can now be seen superposed near the bright globular cluster M14 . Will Comet Hale-Bopp become as bright in early 1997 as Comet Hyakutake did in early 1996? It is still too early to tell. ... Because of the size of coma , some speculate that the nucleus of Hale-Bopp is unusually large. ... Tomorrow's picture: Seven Jets from Comet Hale-Bopp . ... About APOD . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Earth Satellites . ... Sadly C/ 2014 Q2 will probably not be as spectacular a sight as Comet C/ 2011 W3 (Lovejoy), visible near Earth?s horizon in this nighttime image from the International Space Station on 22 December 2011. ... The comet made its closest approach to Earth on 7€а January 2015, at a distance of 72 million km (45 million miles).€а In January the comet will race though the constellations Eridanus, Taurus, Aries and Triangulum. ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

Observers in Northern Ireland will have an opportunity, weather permitting, to observe a relatively rare astronomical event on Wednesday, 7th May, when a transit of Mercury will take place. ... We will have to wait until 9 May 2016 for another opportunity to see Mercury passing in front of the Sun's disc from Europe. ... Mercury passes closest to the Sun's centre at 8:52a.m. at which time it will be at a distance of about one-third the solar diameter from the Sun's centre. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... Home Observing Solar Bridge Across New York Harbor . ... Clear Sky Chart . This Month's Sky . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... Get on board with the Amateurs Astronomers Association, Sunday, September 20th, 2015 . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Not the culmination of ancient prophecy, but none the less mystical, Earth's small Moon will begin a slow slide past the enormous Sun. ... The dark, inner part of the Moon's shadow, the umbra, will strike the Earth first in Iran and trace a smooth curve across Afghanistan and Pakistan, down and through northern India. ... Please submit your completed report by Nov. 30, 1995 by email to 0002032694@mcimail.com or regular mail to John Isles, Attn: Guest Observer, 1016 Westfield Drive, Jackson, Mich. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Le monde entier regarde V†йnus passer devant le Soleil . ... Hier soir, †а New York, les curieux scrutaient le ciel dans l'espoir qu'une †йclaircie leur laisse entrevoir V†йnus devant le Soleil. ... Transit et Soleil de minuit . ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 12 - 18.11.2012, Forecast on 19 - 26.11.2012, Carrington Rotations 2130 (04,86.11.2012) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS REMAINED ON THE AVERAGE LEVEL. ... FLARE ACTIVITY WAS AT THE HIGH LEVEL ON NOVEMBER 13, THE AVERAGE LEVEL ON NOVEMBER 12 AND 14 AND THE LOW LEVEL - 15 - 18.11. BY DATA SOHO AND STEREO CORONOGRAPHS WAS OBSERVED BY 49 CME ONE OF WHICH WAS THE "PAR- TIAL ГАЛО III" TYPE AND 3 - THE "PARTIAL ГАЛО II". ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Parkes radio telescope . Australia Telescope Compact Array . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Use your Sunspotter б® solar telescope to obtain an image of the Sun. ... Hint: The slim yellow booklet that comes with the Sunspotter б® describes eight activities that you can try. ... Wildflowers Home . ...

... HST . ... Hubble Heritage Project . ... HST Peer Review Process . Hubble Fellowships . ... HST Overview . ... Cycle 24 Announcement . ... Proposal ID = 12537 Principle Investigator = David Ehrenreich - Universite de Grenoble I Title = "Venus observed as an extrasolar planet" Time = Jun 5, 2012 15:28:10 - Jun 6, 11:34:00 Targets = MOON-HIPPARCHUS-C Instrument = ACS/WFC, STIS/CCD, WFC3/UVIS . ... Astronomers are beginning to address this question using transits (eclipses) of extrasolar planets. ...

OBSERVATIONS OF COORBITAL SATELLITES OF SATURN Emel'yanov N., Varfolomeev M. Sternberg State Astronomical Institute, Moscow, e-mail : emelia@sai.msu.ru Institut de MИcanique CИleste et de Calcul des иphИmИrides, Paris, e-mail : emelia@imcce.fr Abstract. To improve the orbital parameters and masses of coorbital satellites of Saturn, Janus and Epimetheus, new observations of these satellites are necessary. ... IN: Saturn. ... New observations of Saturn's coorbital satellites" - Icarus. ...

... Site User's Guide (revised January 2015) . General Observing Information . ... An area map is available, as well as detailed directions from regional airports. ... APO does not recommend using GPS for directions to the site; please use the written directions below. ... APO/SDSS/NMSU Purchasing, Travel, Receiving, and Shipping Procedures . APO Site Safety Plan, V2.31 (current); APO Sprinkler and Shutter Procedures (pdf) . ... Roads to APO are all paved but are subject to heavy snow and ice. ...

... In principle, two observers on the ground can tell, by comparing the position of the same auroral arc against the background stars. ... The display stretches across Canada; just below it, in the middle of the picture, are the lights of Chicago, next to Lake Michigan. ... The Canadian scientific satellite Isis-2 (1971) carried an auroral imaging camera and discovered the diffuse aurora, a broad ribbon around the auroral oval, too spread-out to be noticed from the ground. ... Auroral Acceleration . ...