1 sur 2. 20/01/2007 18:42. January 20, 2007 17:40:43 UT - Mission Day: 4068 - DOY: 20. About us search ... the sun) of just 0.17 AU indicated already that the object had the potential to become very bright. ... 3D Orbital Diagram (Java Applet).
January 20, 2007 17:40:43 UT - Mission Day: 4068 - DOY: 20
home
about
HOTSHOTS
gallery
data/archive
operations
publications
search
newsroom
classroom
community
Hotshot
CURRENT HOTSHOT OLD HOTSHOTS
BRIGHTEST COMET IN OVER FORTY YEARS Comet McNaught (C/2006 P1) has not only become the brightest comet SOHO has ever seen, but even the brightest comet observed in over forty years! The comet swung by the sun on Jan 12th - 15th, and is now emerging into the skies of the southern hemisphere. During its close encounter with our mother star, comet McNaught became a naked-eye object in broad daylight. It was discovered on August 7th, 2006 by the hugely successful comet discoverer Rob McNaught (Siding Spring Survey). At time of discovery, the comet was a very faint object, but the predicted perihelion distance (closest distance to the sun) of just 0.17 AU indicated already that the object had the potential to become very bright. As you are probably aware, the LASCO instrument on-board SOHO has the ability to watch comets as they get extremely close to the Sun. Fortunately for us, comet McNaught has passed right through the LASCO C3 field of view! We do not know exactly the peak brightness of the comet yet, but it is definitely brighter than -3 mag! It is thus much brighter than comet NEAT or comet 96P/Machholz. In other words, comet McNaught is by far the brightest and most spectacular comet SOHO has ever seen!
Comet McNaught
Large JPEG Image / High-Res TIFF Image (4.8 MB)
Quicktime Movies: Large / Medium / Small MPEG Movies: Large / Medium / Small The comet appeared in the field of view of SOHO's coronagraph LASCO C3 at around 02:00 UT (05:00 EDT) on January 12th. It passed its perihelion around 19:00 UT on January 12th, and exited C3's field of view at roughly 03:00UT on January 16th. Since LASCO was built to observe the faint solar corona, its exposure times are not tuned to handle objects as bright as this extraordinary comet. In fact, comet McNaught is so bright that it saturates the CCD camera so that "bleeding" occurs along pixel rows. There is a bright horizontal streak on either side of the comet's head, because the charge leaks easier along the direction in which the CCD image is read out by the associated electronics. The lower the magnitude number, the brighter the object. The brightest stars in the sky are categorized as zero or first magnitude. Negative magnitudes are reserved for the most brilliant objects: the brightest star is Sirius (-1.4); the full Moon is -12.7; the Sun is -26.7.
20/01/2007 18:42
SOHO Hotshots
2 sur 2
http://sohowww.nascom.nasa.gov/hotshots/
Related Links LASCO Color Filter Observations ESA Web Story SOHO Comets' Web Page Comet observations with SOHO and STEREO Comets Movies Movies of the most beautiful comets observed by SOHO The LASCO Instrument Details about SOHO's LASCO coronograph Comet McNaught - a First Light Present for STEREO Comet McNaught Photo Gallery Nice photographs of the comet 3D Orbital Diagram (Java Applet) The ICQ Comet Information Website from International Comet Quarterly Comet NEAT SOHO hotshot with images and movies Comet 96/P Machholz SOHO hotshot with images and movies Space Watch Story on Comet McNaught Sky Maps and Magnitude Graphs for Comet McNaught Information about Comets from Wikipedia Information about Comets from space.com
• European Site • US Site Feedback & Comments: SOHO Webmaster Last modification: January 16, 2007
SOHO is a project of international cooperation between
Mar 23, 2003 - Tiare is an astronomical ephemeris for Texas Instrument calculators. This version is in developpement to test some features and capabilities ...
synchronization of the image capture to the most fleeting of events. Multiple Video Outputs. The SC2500 features multiple independent video outputs to include:.
-25. -15. -5. 5. 15. 25. 35. Saturn over the 2015 sky. - North view around 45° Latitude -. Nov. / Dec. Jan. Feb. / Mar. Apr. May / Jun. Jul. Aug. / Sep. Oct. Nov. / Dec.
May / Jun. Jul. Aug. / Sep. Oct. Nov. / Dec. Jan. Feb. / Mar. Apr. May / Jun. Jul. Aug. / Sep. ... 25. 35. Saturn over the 2011 sky. - North view arround 45° Latitude -.
-25. -15. -5. 5. 15. 25. 35. Saturn over the 2016 sky. - North view around 45° Latitude -. Nov. / Dec. Jan. Feb. / Mar. Apr. May / Jun. Jul. Aug. / Sep. Oct. Nov. / Dec.
intrinsic noise, and noise measurement. So we have a sys- tem of the ... equation (4) represents the typical noise for sensor and it can be decreased by adding ...
Planetary projection over the sky for year 2014. - North view arround 45° Latitude -. Saturne. Jupiter. Mars. Mercury. Venus. 0. -35°. 35°. 24h. 12h. Evening.
Jun 2, 2015 - colors and spectral slopes that these satellites contain a more or less equal .... 2 Website: http://www.lna.br/opd/opd.html - in Portuguese.
François Luchaire, un républicain au service de la République. ...... 73.00 €. Russo C.. De l'assurance de responsabilité à l'assurance directe : contribution à l' ...
REVUE DU DROIT PUBLIC ET DE LA SCIENCE POLITIQUE. Fondée en ...... artistique appliquée à l'audiovisuel. 2003. 38.00 €. ...... Institut National de Formation Notariale. Le nouveau ...... Actes du colloque de Rennes des 20-. 21/09/1996.
acts in question are thus freed from the limit dictated by their prosaic logic. Yann Vanderme also tackles another, more intimate boundary: that of his own tastes.
second most important word in learning about car setup is practice. ... We take this opportunity to wish you all the very best in your R/C racing. .... release compound left over from the manufacturing process and gives the glue the best chance of.
I development of a module of the tank simulation program ROMULUS IV. Work done in ... for the repartition analysis of data in databases. 1995-1996. 1996.
Jun 10, 2009 - soils covered by gravels or iron pan, sand dune (bare or fixed), sandy ... properties, soils types can be gathered into three main categories: ...
PDFA, resp. PRFA). It can be shown that LPDFA(S) Ç LPRFA (E) Ç LPFA() [13]. Each of these classes can be characterized in terms of residual languages [13].
ranges from 139 to 268 kg DM/ha that compares well with a previous study based on the sole inversion of the radiative transfer .... The present growth submodel simulates processes of plant ...... EvolC User Manual, Technical Report, EEAAX,.
PDF Subject: Police Des Meurs Les Diablesses De Soho Police Des Moeurs Its strongly recommended to start read the Intro section, next on the Quick Discussion and find out all the topic coverage within this PDF file one after the other. Or perhaps in