... Armagh Observatory received many telephone and internet reports from members of the public regarding sightings of a bright meteor or fireball which crossed over Northern Ireland in the early morning of Sunday, 10th October. ... Account: I was driving on the main Armagh/Portadown Road travelling towards Richhill when the sky in front of me was lit up by a couple of very bright flashes of light which were followed by a trail of white light. ... The trail faded over approximately 20 seconds. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

Astronomy Picture of the Day . A Colorful Aurora . ... 1.09.1998 . ... Credit: Stephen Barnes , Sky Optics Explanation: A solar storm overtook the Earth on August 26th. ... Solar particles that strike oxygen high in Earth's atmosphere cause rare, red auroras , while oxygen lower to the ground will glow a more familiar green. ... Publications with keywords: aurora - Earth - atmosphere . Publications with words: aurora - Earth - atmosphere . ... Earth at Twilight . ... Aurora in the Distance . ...

... There are TPM log files for every night of the dark run except for the nights of 08 October and 14 October 1999. ... The figures below are plots of the MIG data with the y-axis in TPM MIG units (real MIG units*1000) and the x-axis in seconds since midnight. ... Figure: Plot of MIG values vs elapsed time from midnight 10 October 1999. ... Figure: Plot of MIG values vs elapsed time from midnight 08 October 1999.The plot starts recording data from 21:26:52.0 on that day. ... 11/24/1999 ...

... Duchamp | ... Top | Duchamp is a solution to this problem of three-dimensional source finding. ... A list of the detections and their properties, as well as the input parameters that were used. [text file] . ... It can be downloaded in source format, in a gzipped tar archive. ... Changes from the previous version can be seen here (this file is included in the tar archive), while the archive files and documentation from the previous release versions are here , if you are really interested. ...

The run progress pages document the execution of Service Mode and Visitor Mode observing runs carried out at the Paranal Observatory. A summary of the run's characteristics is given, as well as a time-stamped list of all Observation Blocks (OB) that were executed until now. ... If reduced data for the given run exist, those are also reported in both the OB Summary table and in the details. ... Reduced : information shown only if pipeline-processed reduced data exist for the OB . ... OB ID . ...

This page is devoted to information on Supernova 2000C in NGC 2415 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the Supernova links web page. ... Odd Trondal images . More images of SN2000C from CROSS (copies of several of the images below) . ... U of Iowa images . ... Odd Trondal image . ... vsnet-recent 49502 ] SN2000C recent (cont'd) . ...

. In an effort to provide a centralized database for indexing locations and descriptions of Shuttle debris, the editors of Astronomy Net have generated a database and web page where reports can be logged. This may or may not prove useful for cataloging debris reports, but Astronomy Net is happy to dedicate computer resources to help out any way possible. We express our sympathy and prayers to the families and friends of the Columbia crew. If you have located Shuttle debris, report it here.

... A2130 (galfacts) reported strong rfi (lots of overflows from the mock spectrometer) on the evening of 02nov11. The punta salinas frequency agile radar was running in all frequencies until about 20:00 ast (it then changed to mode A 4 frequency mode). ... The variation in counts by session may be the beating of when the dome was at certain za's vs when the radar pointed at the observatory. punta salinas radar ran in all frequencies for the first part (till 20:00 ast) of the a2130 run on 02nov11. ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Astronomy for Kids . ... Can you explain Mercury's retrograde motion? Do other planets appear to do this also? ... When astronomers talk about retrograde motion, generally they refer to the apparent motion outer planets make as Earth passes them while orbiting the Sun. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... A reconstruction method of 3D vector velocity field (three components of velocities) of gas in disks of spiral galaxies from observed line-of-sight velocity field is proposed. This method is based on Fourier analysis of observed velocity field. ... The knowledge of velocity field in spiral galaxies allows to clarify the nature of the galactic structures and mechanisms of their formation. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

New Moons of Uranus . Brent Gladman's Home Page . ... The discovery of two probable distant satellites of Uranus was reported by B. Gladman, P. Nicholson, J. Burns and J. Kavelaars. ... This discovery was reported in the IAU Circular 6764 . ... Discovery image of S/1997 U 2 . This shows the discovery image of brighter of the two new moons of Uranus. ... This shows the discovery image of faint new moons of Uranus. ... This shows another discovery image of faint new moons of Uranus. ... Uranus . ...

... M94 or NGc 4736 is an early type spiral galaxy with tightly would spiral structure and a dominant, luminous central bulge. ... This exposure was for 1724 seconds through A1 and B1. ... NGC 7789 is an open stellar cluster in the Galaxy. This exposure is 1351 seconds through B5. ... The Coma Cluster of galaxies was observed for 1850 seconds through the A1 filter. ... NGC 1313 A spiral galaxy in the Fornax Cluster and host of two recent supernova was observed for 1384 seconds through A1 and B5. ...

home publications > mercury . ... Astronomy Beat . ... Nearly four centuries ago, Galileo's simple observations of Earth's planetary sibling, Venus, buoyed the proponents of a Copernican universe. ... The Italian astronomer had settled into a new house in Florence and had begun to observe Venus, which in November 1610 would have appeared as an evening star, bright in the western sky after dusk. ... From these two observations, Galileo inferred that Venus must orbit closer to the Sun than does Earth. ...

The weather throughout this year was so extremely favorable that I have been able to observe the Sun clearly on 312 days; however, I counted only 34 groups of sunspots.. From my earlier observations, which I have reported every year in this journal, it appears that there is a certain periodicity in the appearance of sunspots and this theory seems more and more probable from the results of this year.. ... 244 . ... 149 . ... Exploration" home page (index) Glossary . Official GSFC Home Page .. ...

... Research School of Astronomy & Astrophysics . ANU College of Physical & Mathematical Sciences . EXPLORE ANU . ... Research . ... ANU College of . ... SEARCH . ... Search query . Search . Search query Search button . ... Intranet . Intranet home . ... RSAA people . ... ANU Outlook 365 email login . ... ANU Library request form . ... 2006 (PDF,6MB) . 2005 (PDF,6MB) . 2004 (PDF,2MB) . ... 2002 (PDF,2MB) . 2001 (PDF,2MB) . 2000 (PDF,2MB) . 1999 (PDF,2MB) . ...

... The weather throughout this year was so extremely favorable that I have been able to observe the Sun clearly on 312 days; however, I counted only 34 groups of sunspots.. From my earlier observations, which I have reported every year in this journal, it appears that there is a certain periodicity in the appearance of sunspots and this theory seems more and more probable from the results of this year.. ... Year . ... Days when no . ... Observation Days . ... 273 . ... 282 . ... 244 . ... 149 . ...

. A tree for site navigation will open here if you enable JavaScript in your browser. HOME . ABOUT ST-ECF . CONTACT . The Instrument Science Reoprts written by ST-ECF members for the various Hubble instruments (STIS, ACS, WFC3) and for JWST are available at the STScI. The links below point to the location of all ISR's for the corresponding instrument or telescope. Maintained by Britt Sjoeberg <bsjoeber@eso.org> .

... September 1, 1998 . A Colorful Aurora . ... Explanation: A solar storm overtook the Earth on August 26th. The Earth survived unscathed, as usual, although many northerners reported an impressive display of aurora . ... Some of these colors were captured in the photograph above . Solar particles that strike oxygen high in Earth's atmosphere cause rare, red auroras , while oxygen lower to the ground will glow a more familiar green. Ionized nitrogen glows blue or red. ... About APOD > . ...