This page is devoted to information on Supernova 1999gn in NGC 4303 (= M61 ) Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... SEDS has a Supernova 1999gn page . ... Seiichi Yoshida has a 1999gn page . ... Kopernik 's M61 and supernova 1999gn page . ... vsnet-alert 3835 ] SN 1999gn in NGC 4303 = Messier 61 . ...

Supernova 2006jc in UGC 4904 . This page is devoted to information on Supernova 2006jc in UGC 4904 . ... Information on the original web pages for many of these images can be found on the updates and links web pages. ... At first this was lised as a possible supernovae, as Mr. Itagaki had posted a suspect image at almost exactly this location in 2004 (image indexed on this page). ... Image Credit . ... 2006/10/09.752 . ... Discovery mirror . ... JM Llapasset image . ... Joel Nicolas image . ...

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 . ...

... HST . ... Data . ... HST Overview . Overview . ... Cycle 24 Announcement . ... Changing Programs & Resolving Problems . ... Program Information . ... Hubble Observation Problem Reports (HOPRs) provide a mechanism for you to inform STScI when a problem has occurred with the implementation, scheduling, execution, or data processing of your observations. ... If one or more of your HST observations appears to have a problem, go to the Program Information Page and retrieve the program information. ...

Astronomy Discussion Forums . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... A Sensational Discovery . ... Post Message | ... It is citing the Kalashnikov gun instance. ... The new ones is inclosing in following: the Law of Pulse(Momentum) is acting until the bullet and the gun clash something. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 81Trushkin+ The results of the multi-frequency radio observations of fourteen supernova remnants (SNRs) made with the RATAN-600 radio telescope in 1985 are reported. Flux densities of these SNRs are measured at least at two wavelengths: 31.3 and 7.6 cm. The radio spectra of some SNRs are precised. ... The radio sources detected inside or near the SNRs with the flux densities measured in the most sensitive 7.6-cm radiometer. The spectra of some point sources are discussed. ...

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 .. ...

... See the exerpt below from AAVSO circular, courtesy of Martin McKenna. ... The attached map shows the approximate position, as seen from Cork, at 06.00 on 18 Feb. ... Discovered Independently by: - Yuji Nakamura, Kameyama, Mie, Japan (reported by H. Yamaoka, Kyushu University, IAU Circular 8803); - Yukio Sakurai, Mito, Ibaraki-ken, Japan (reported by S. Nakano, Sumoto, Japan, IAU Circular 8803) Discovery Date: - Nakamura: Feb. 4.8624 UT - Sakurai: Feb. ... Clear skies, Terry Moseley . ...

... 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 . ...

... Solar System . ... European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system тАФ the nearest to Earth. ... Alpha Centauri is one of the brightest stars in the southern skies and is the nearest stellar system to our Solar System тАФ only 4.3 light-years away. ... The European team detected the planet by picking up the tiny wobbles in the motion of the star Alpha Centauri B created by the gravitational pull of the orbiting planet [2] . ...

... 28.11.1998 . ... Twisting Meteor Train . ... Blazing through the sky at 70 kilometers per second, 100 kilometers or so above planet Earth, many bright Leonid meteors left behind a persistent, smoke-like trail of glowing, hot, ionized gas. ... The 1998 Leonid Meteor Shower featured many bright events. ... Observers there reported a peak rate for the 1998 Leonid Meteor Shower of about 600 meteors per hour. ... Rich in bright and awesome fireballs, the Leonid Meteor Shower came early this year. ...

... the total power and averaged spectra: (.ps) ( .pdf) . The dynamic spectra for the 13 files (2136 seconds) (.gif) : . ... Each file has 178 seconds of data. ... Input the file averaging the spectra to 1 second. ... Also compute an average spectra for each file. Create a dynamic spectra covering the 13 files with 1 second resolution: . ... The total power was computed over the 50 MHz bandwidth after averaging in time to 1 second. ... An average spectra for each file (178 seconds) was computed. ...

... Seminar archive . ... Seminar archive 2013 19 July . ... Wide-field transient surveys and supernova shock breakout . ... Many transient surveys are performed intensively in these days and time-domain astronomy comes under the spotlight. ... The shock breakout is the bolometrically brightest phenomenon in supernovae but it is difficult to observe the shock breakout due to the short duration and X-ray/ultraviolet-peaked spectra. ... All seminars: . ...

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! ...

... Bogod V.M., Gel'freikh G.B.: Study of the solar atmosphere based on spectral and polarization observations on the RATAN-600. ... V.M. Bogod, C. Mercier, L. V. Yasnov: About the nature of long-term microflare energy release in the solar active regions, Paper accepted by JGR in 2000 (Manuscript Number: 20.4013). ... Bogod V.M., Garaimov V., Grebinskij A., Komar N., Opeikina L.: Solar active regions study based on wide wavelength range radio observations with RATAN-600, Abstract of JENAM-2000, p.115 . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Parkes radio telescope . Australia Telescope Compact Array . ... Australia Telescope 20GHz Survey . ... Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies? ... Our Fornax Spectroscopic Survey , carried out with the 2dF multi-object spectrograph on the Anglo-Australian Telescope (see Drinkwater et al. 2000), is now 87% complete in its first field to a limit of B J =19.7. ...

... Bojan Nikolic web pages home . ... We have posted today three reports on ALMA phase correction performance when using the WVRGCAL program. ... Sarah F. Graves: WVRGCAL performance: early 2011 observations & smoothing, March 2012 . Marcel Clemens, The performance of wvrgcal тАФ The 4 quasar, band 9 experiment, uid A002 X2d1a7d X35b.ms , November 2011 . Marcel Clemens, The performance of wvrgcal тАФ The influence of self-cal, September 2011 . ... Copyright 2012, Bojan Nikolic feedback welcome ...

... 2002 . I half-year . ... 2003 . ... 2004 . ... 2005 . ... 2006 . ... I half-year (pdf) . ... 2015 . ... Last update: 17/11/2015 ...

... Bad Astronomy . ... Bitesize Astronomy . ... Hey, it's either this or one of those really irritating PayPal donation buttons here. ... I have always loved supernovae, stars that explode. ... Late in the evening of February 23 rd /24 th * , 1987, an astronomer named Ian Shelton was taking images of the Large Magellanic Cloud (LMC), a satellite galaxy of the Milky Way. ... Shortly thereafter, Ian Shelton developed the plates he had been taking of the LMC and immediately saw the new star. ...

... Help . ... Before you report a problem you should check if it has already been reported in the help desk's SAS archive . If you decide to report a problem, then you can do so via the Observation Report (OR) form. Shortly thereafter you will be contacted by the XMM-Newton help desk . ... In most cases you'll be asked to send the following information, so you may consider enclosing it right away in your report (not all items apply in all cases): . ... Information about the CCF in use . ...