... The HDF Project. ... How to obtain the data catalogs. Observing logs and ancillary information. Technical information on the data reduction pipeline. Technical information on image registration and combination. Technical information on source detection and photometry. HDF Clearinghouse -- followup observations and analysis. ... Hubble Deep Field Academy -- Educational Resource for Middle School students . Hubble Deep Field South The Space Telescope Science Institute home page . ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... ESO Science Newsletter . ... View shopping cart . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... Triplet of bright galaxies in the constellation of Leo (The Lion), together with a multitude of fainter objects: distant background galaxies and much closer Milky Way stars. ... Leo Triplet . ...

... Credit Copyright: Fritz Helmut Hemmerich Explanation: Sweeping through northern skies, Comet Catalina (C/2013 US10) made its closest approach on January 17, passing about 6 light-minutes from our fair planet. Dust and ion tails clearly separated in this Earth-based view, the comet is also posed for a Messier moment , near the line-of-sight to M101, grand spiral galaxy in Ursa Major. ... January . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: comet . ...

... 2016 January 16 . The View Toward M106 . ... Explanation: A big, bright, beautiful spiral, Messier 106 is at the center of this galaxy filled cosmic vista. ... Also known as NGC 4258, M106 is about 80,000 light-years across and 23.5 million light-years away, the largest member of the Canes II galaxy group. ... Another prominent spiral galaxy on the scene, viewed nearly edge-on, is NGC 4217 below and right of M106. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

An image of the grand design of spiral galaxy M100 obtained with NASA's Hubble Space Telescope resolves individual stars within the majestic spiral arms. ... Hubble has the ability to resolve individual stars in other galaxies and measure accurately the light from very faint stars. This makes space telescope invaluable for identifying a rare class of pulsating stars, called Cepheid Variable stars embedded within M100's spiral arms. ... 617) 495-7062 . Fax: (617) 495-7356 . ...

... STScI-PRC00-34 A BIRD'S EYE VIEW OF A GALAXY COLLISION What appears as a bird's head, leaning over to snatch up a tasty meal, is a striking example of a galaxy collision in NGC 6745. ... However, the situation is quite different for the interstellar media in the above two galaxies - material consisting largely of clouds of atomic and molecular gases and of tiny particles of matter and dust, strongly coupled to the gas. ... The hot blue stars in this image are evidence of this star formation. ...

... Tonight's Sky . ... The Magazine . News . Observing . ... Product Reviews . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Our product review database includes every new product, review, roundup, and buyers guide that has appeared in Astronomy in the last few years.Тљ Search our collection of over 300 products. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

View from Armagh looking towards the North-West at 10.00 p.m. on 30th March 1997. The comet is best seen with binoculars, but viewed with the naked eye both the head and tail should be easily visible. To get your bearings, note the bright star Capella, in the constellation of Auriga high in the west, the prominent "W" of stars that make up the constellation of Cassiopeia, and the outline of Perseus. ... Viewed with the naked eye the Pleiades cluster appears as a haze of stars. ...

Views of the Solar System . ... V iews of the Solar System presents a vivid multimedia adventure unfolding the splendor of the Sun, planets, moons, comets, asteroids, and more. ... Views of the Solar System offers enhanced exploration and educational enjoyment of the solar system and beyond. ... Sun . ... Asteroids . Comets . ... History . ... Satellite Data . ... Browser . ... Credits . ... Solar System Introduction . ... Sun, Planet & Satellite Data | Planetary Data Browser | ...