Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . 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 updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

. SN 1993J . NAME . NGC 3031 . DISCOVERED ON . Mar. 28, 1993 . R.A. (2000.0) . 09h 55.5m . MAGNITUDE . 10.2 . DECL. (2000.0) . +69° 04.0' . OFFSET (") . 45 west 160 south . MAGNITUDE . 8.1 . TYPE . IIb . R.V. (Km./s) . -49 . I.A.U.C. n. 5731 Mar. 30, 1993 . HUBBLE TYPE . Sb . REFERENCES .

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The CHIANTI database consists of 4 primary ASCII files for each ion in the database. contains the energy levels in cm^(-1) It includes both experimental data and theoretical values of the levels energies. ... contains wavelengths, gf and A values for each transition. Wavelengths are based on experimental level energies where available; wavelengths calculated from theoretical energies are less accurate and are given as negative values. ...

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... 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] . ...

... Press & Web Coverage . ... A song written by Padi Boyd and performed by The Chromatics, specifically for the International Year of Astronomy. ... Some links from press coverage and other websites referencing IYA2009-Ireland. ... Reports from events that happened in Ireland during the International Year of Astronomy. more.. ... Some of the reports from the events that happened all around Ireland during the 100 hours of astronomy project. ... International Year of Astronomy, Ireland National Node . ...

... Birkinshaw M., 1997. Physics Reports, in press. Birkinshaw M., Gull S.F., Hardebeck H. & Moffet A.T., 1997. ApJ, submitted. ... ApJ, 251, L69. Birkinshaw M. & Hughes J.P., 1994. ... Birkinshaw M., Hughes J.P. & Arnaud K.A., 1991. ... Connolly A.C., Szalay A.S., Koo D., Romer A.K., Holden B., Nichol R.C. & Miyaji T., 1997. ... Herbig T., Lawrence C.R., Readhead A.C.S. & Gulkis S., 1995. ... Hughes J.P., Birkinshaw M. & Huchra J.P., 1995. ... Hughes J.P. & Birkinshaw M., 1997. ...

... Sun-aligned arcs are auroral features found within the polar cap , as opposed to the auroral oval where the more typical arcs reside. First global image of this phenomenon was reported by Frank et al. (1982); it consists of luminous belt reaching across the polar cap from noon to midnigh (that is why it is also called theta aurora; terms transpolar or polar cap arc are also known). ... Res., ... Antisunward decay of polar cap arcs, J. Geophys. ... The Creation of Theta-Aurora, by JHU/APL . ...

... Aurora Over Edmonton . ... Northern and southern locales saw many a beautiful aurora over the last week, as particles from several large solar flares impacted the Earth. Many reported unusually red auroras, although colors across the spectrum were also seen. ... Our Sun itself frequently has sunspots, relatively cool dark magnetic depressions that move across its surface. ... A Dark and Stormy Night . ... Yesterday, our Sun produced one of the most powerful solar flares in recorded history. ...

How do I report problems I've encountered using NEdit ? ... If you have a problem which is not covered in the on-line help, in this FAQ, or in the README file specific to your system, you can report it to discuss@nedit.org (usage questions) or, develop@nedit.org (error reports). ... Below are some suggestions for information you can provide to help in diagnosing your problem. ... As of version 5.2 a summary with build information is present under 'Version' in the Help menu. ...