... Planets . ... Earth Satellites . ... Monthly Sky Notes . ... As the sun sets in the west each evening, Jupiter, the largest planet in our Solar System, is rising in the east in the constellation of Aries, where it is visible throughout the night setting just before sunrise. ... On 28 October the Earth comes between the Sun and Jupiter, in opposition, meaning as the Sun sets in the sky Jupiter will rise. ... Also this month rising into the sky in the early hours of the morning is Mars the Red planet....

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• A Summer Night?s Stargazing | Astronotes
• constellations | Astronotes - Part 6
• Supernova in the Cigar Galaxy | Astronotes

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 . ...

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... 2015 October 17 . Bright Spiral Galaxy M81 . ... This superbly detailed image reveals M81's bright yellow nucleus, blue spiral arms, tell tale pinkish star forming regions, and sweeping cosmic dust lanes with a scale comparable to the Milky Way. Hinting at a disorderly past, a remarkable dust lane actually runs straight through the disk, to the left of the galactic center, contrary to M81's other prominent spiral features . ... About APOD | ...

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• APOD: 2008 October 11 - Bright Bolide
• APOD: 2007 October 6 - X-Ray Stars of Orion
• APOD: 2007 October 26 - Comet Holmes in Outburst

... Mars to Appear Normal this August . ... October is the best month to see Mars this year. ... As Earth catches up to Mars in their respective orbits around the Sun, Mars will keep rising earlier in the night. On 2005 October 30, Earth will have caught up to Mars and the planets will be the nearest to each other in their orbits -- this time around. On October 30, Mars will be nearly opposite to the Sun, rise at sunset, set at sunrise, and appear highest and brightest around midnight. ...

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• Journal "Peremennye Zvezdy"
• Ring Around Fomalhaut
• Kepler s SNR from Chandra, Hubble, Spitzer

... October 9, 1997 . Hale-Bopp and the North American Nebula . ... Explanation: Comet Hale-Bopp 's recent encounter with the inner Solar System allowed many breath-taking pictures. Above, Comet Hale-Bopp was photographed on March 8th in the constellation of Cygnus . ... The North American Nebula is about 1500 light years away, much farther than the comet, which was about 8 light minutes away. ... About APOD > . ...

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• APOD: 2000 November 8 - October Skylights
• APOD: October 2, 1999 - Phi Persei: Double Star
• APOD: October 18, 1999 - NGC 3603: An Active Star Cluster

... Warped passages: Thursday 16 October 2008 . ... Catch a Falling Star: Thursday 9 October . A stronomy Ireland Colm J. Cannon Memorial lecture: " Searching for Planets Around Other Stars - From Galway " by Gregg Hallinan, at 8 pm, Monday 13 October, in the Physics Building, Trinity College Dublin. ... The techniques used to detect these planets requires the use of very sensitive and expensive equipment. ... Tuesday, 7 October 2008 23:23 . International Year of Astronomy, Ireland National Node . ...

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• Latest News
• Armagh Observatory
• Terry Mosely's Bulletins

... Abstract . ... An Efficient ACS Coronagraphic Survey for Debris Disks around Nearby Stars . ... The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region . ... High-resolution HST image of the face-on debris disk in the G2 dwarf, HD 107146 . ... Simulations of a nearby dwarf galaxy, a nearby giant galaxy and a distant giant galaxy; note that the last is similar in angular size to the dwarf, but has a much smoother brightness distribution (simulations from Ned Wright's ABC of distances . ...

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• HST this week: 271
• HST this week: 268
• Archive for October

Aboriginal and Torres Strait Islander people developed complex knowledge systems around the sun, moon, and stars. Stellar positions and properties (such as declination, colour, brightness, and scintillation) were important for navigation, calendars, economics, and time-keeping. Transient astronomical phenomena (including comets, meteors, eclipses, and aurorae) reinforced sacred law and cultural practices and served as a moral charter. ...

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• C/2006 P1 (McNaught)

. Comet ISON continues to brighten. In this image, it appears in the southeastern part of the constellation Leo the Lion. Look carefully around the field and you ll spot several faint galaxies, including one at the very tip of the comet s tail. Gerald Rhemann captured this image October 29 from Eichgraben, Austria, using a 12-inch Astro Systeme Austria ASA-12 astrograph at f/3.6, FLI ML-8300 CCD camera, LRGB image with 15-minute exposures through each filter. Gerald Rhemann

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B119AB65D-95F0-4B2F-85D4-234A8CCBB6FA%7D
• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B854836DE-B625-4778-B632-A81A621C7A72%7D
• October 2014 | Astronomy.com

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

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• Finding Himalia, The Fifth Brightest Moon Of Jupiter - an Astronomy Net Article
• Articles written by astronomers for astronomers of all ages.
• You Can Make Stellar Images Brighter - an Astronomy Net Article

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• Low Surface Brightness Galaxy Gallery

... Now, think about a much bigger move: What do you think it would be like if the Earth moved to a different part of our Galaxy? Our Galaxy, the Milky Way, is shaped like a whirlpool: It has bands of stars that spiral around the centre, which astronomers call the Galaxy s arms . ... We live in the outer parts of the Milky Way, in one of its spiral arms. ... The small centre of the Milky Way is a much more crowded place, as this is where most of its stars are found. ...

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• Shell around V445 Puppis (October 2006) | ESO
• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• ESO - Newsletter October 2014

... all new HIPASS galaxies (Table 2.4) that have no yet been observed with the ATCA . ... Table : Remaining ATCA target list (sorted by RA) -------------------------------------------------------------------------------- Name RA DEC ID Max mom0 mom1 mom2 w50 w20 -------------------------------------------------------------------------------- ZSS 13 07:33:16 -28:41:07 new -HIZSS013 0.151 9.2 2077.6 21.6 52.8 144.6 HIP 358 07:44:56 -41:47:02 ESO311-G006/7 0.262 30.9 1049.4 34.5 127.1 149.5 ...

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• ATNF Daily Astronomy Picture
• Pulsar Group Main/Visitors
• The 1000 Brightest HIPASS Galaxies

... Bad Astronomy . ... Bad Astronomy: The North Star, Polaris, is a very bright star. Good Astronomy: Polaris is a middling-bright star, easily missed. ... He said it was close to Polaris, the North Star, but he also said it was in the East. ... It's natural, I suppose, to think that such an important star should be bright, but really, that's a conceit, like thinking that the Earth is at the center of the Universe. If more people knew just why Polaris is the North Star, this Bad Idea would stop. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy

October 30-31, 1992 . ... Modified images of the October 30-31, 1992 event. (a) - This NRH image is adapted to show a very bright loop-like source over AR 7321 near the SW-limb identified with the X1.7 soft X-ray LDE event peaked on 30d at 17:30 UT (see the GOES-7 soft X-ray plot also at the upper right corner). ... Here and hereafter, the white features are radio filaments. (c) - This modified NRH image shows some large scale microwave blob chains and structures. ...

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• http://www.izmiran.rssi.ru/~ichertok/CHAINS/ANNOUNC/radio.htm

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

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• GRB030329
• The Large Magellanic Cloud
• Searching the Environment around LyAlpha Absorbers

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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• Events archive
• Workshop 2015

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! ...

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... The UNIVERSAT-2009 Symposium (28 September - 1 October 2009) will cover a wide variety of topics centered around the theme "University satellites in space sciences education", and is meant to inform the entire university and space-interested community on the new initiatives and university satellites projects in space sciences and technology education. ... I. Space Sciences Education: . ... Hands-On Space Exercises, . ... Cooperation Ideas in Space Sciences Education and Public Outreach. ...

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The X International Astronomy Olympiad has been held in Beijing (China) on October 25 - November 2, 2005. ... China Beijing . ... Like at VII and VIII IAOs the host team (team of Beijing city) took part in the Olympiad as the 16 th team. ... The 10 th International Astronomy Olympiad has been held successfully in Beijing on October 25 - November 2, 2005. ... J.Zhu (Beijing, X IAO-2005 LOC Chairman), . ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

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• II International Astronomy Olympiad, Problems to solve
• VII International Astronomy Olympiad: Proposed Programme
• IX International Astronomy Olympiad