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Unique Sky Survey Brings New Objects Into Focus 15 June 2009
Unique sky survey brings new objects into focus 15 June 2009 human intervention. The Palomar Transient Factory is a collaboration of scientists and engineers from institutions around the world, including the California Institute of Technology (Caltech); the University of California, Berkeley, and the Lawrence Berkeley National Laboratory (LBNL); Columbia University; Las Cumbres Observatory; the Weizmann Institute of Science in Israel; and Oxford University. During the PTF process, the automated wide-angle 48-inch Samuel Oschin Telescope at Caltech's Palomar Observatory scans the skies using a 100-megapixel camera. The flood of images, more than 100 gigabytes This is the Andromeda galaxy, as seen with the new every night, is then beamed off of the mountain via PTF camera on the Samuel Oschin Telescope at the High Performance Wireless Research and Palomar Observatory. This image covers 3 square Education Network¬-a high-speed microwave data degrees of sky, more than 15 times the size of the full connection to the Internet-and then to the LBNL's moon. Credit: Nugent & Poznanski (LBNL), PTF National Energy Scientific Computing Center. collaboration There, computers analyze the data and compare it to images previously obtained at Palomar. More computers using a type of artificial intelligence software sift through the results to identify the most An innovative sky survey has begun returning interesting "transient" sources-those that vary in images that will be used to detect unprecedented brightness or position. numbers of powerful cosmic explosions-called supernovae-in distant galaxies, and variable Within minutes of a candidate transient's discovery, brightness stars in our own Milky Way. -
Messier Objects
Messier Objects From the Stocker Astroscience Center at Florida International University Miami Florida The Messier Project Main contributors: • Daniel Puentes • Steven Revesz • Bobby Martinez Charles Messier • Gabriel Salazar • Riya Gandhi • Dr. James Webb – Director, Stocker Astroscience center • All images reduced and combined using MIRA image processing software. (Mirametrics) What are Messier Objects? • Messier objects are a list of astronomical sources compiled by Charles Messier, an 18th and early 19th century astronomer. He created a list of distracting objects to avoid while comet hunting. This list now contains over 110 objects, many of which are the most famous astronomical bodies known. The list contains planetary nebula, star clusters, and other galaxies. - Bobby Martinez The Telescope The telescope used to take these images is an Astronomical Consultants and Equipment (ACE) 24- inch (0.61-meter) Ritchey-Chretien reflecting telescope. It has a focal ratio of F6.2 and is supported on a structure independent of the building that houses it. It is equipped with a Finger Lakes 1kx1k CCD camera cooled to -30o C at the Cassegrain focus. It is equipped with dual filter wheels, the first containing UBVRI scientific filters and the second RGBL color filters. Messier 1 Found 6,500 light years away in the constellation of Taurus, the Crab Nebula (known as M1) is a supernova remnant. The original supernova that formed the crab nebula was observed by Chinese, Japanese and Arab astronomers in 1054 AD as an incredibly bright “Guest star” which was visible for over twenty-two months. The supernova that produced the Crab Nebula is thought to have been an evolved star roughly ten times more massive than the Sun. -
Winter Constellations
Winter Constellations *Orion *Canis Major *Monoceros *Canis Minor *Gemini *Auriga *Taurus *Eradinus *Lepus *Monoceros *Cancer *Lynx *Ursa Major *Ursa Minor *Draco *Camelopardalis *Cassiopeia *Cepheus *Andromeda *Perseus *Lacerta *Pegasus *Triangulum *Aries *Pisces *Cetus *Leo (rising) *Hydra (rising) *Canes Venatici (rising) Orion--Myth: Orion, the great hunter. In one myth, Orion boasted he would kill all the wild animals on the earth. But, the earth goddess Gaia, who was the protector of all animals, produced a gigantic scorpion, whose body was so heavily encased that Orion was unable to pierce through the armour, and was himself stung to death. His companion Artemis was greatly saddened and arranged for Orion to be immortalised among the stars. Scorpius, the scorpion, was placed on the opposite side of the sky so that Orion would never be hurt by it again. To this day, Orion is never seen in the sky at the same time as Scorpius. DSO’s ● ***M42 “Orion Nebula” (Neb) with Trapezium A stellar nursery where new stars are being born, perhaps a thousand stars. These are immense clouds of interstellar gas and dust collapse inward to form stars, mainly of ionized hydrogen which gives off the red glow so dominant, and also ionized greenish oxygen gas. The youngest stars may be less than 300,000 years old, even as young as 10,000 years old (compared to the Sun, 4.6 billion years old). 1300 ly. 1 ● *M43--(Neb) “De Marin’s Nebula” The star-forming “comma-shaped” region connected to the Orion Nebula. ● *M78--(Neb) Hard to see. A star-forming region connected to the Orion Nebula. -
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Printer Friendly - - science news articles online technology magazine articles Printer Friendly Beyond Pluto We are only beginning to discover how vast and strange our solar system truly is By Kathy A. Svitil Illustrations by Don Foley DISCOVER Vol. 25 No. 11 | November 2004 | Astronomy & Physics As a child, Mike Brown had all the trappings of an astronomer-in-the-making, with space books, rocket drawings, and a poster of the planets on his bedroom wall. On it, Pluto was depicted as “this crazy and very eccentric planet,” he says. “It was everyone’s favorite crazy planet.” Brown still recalls the mnemonic he learned for the names of the planets: Martha visits every Monday and—a for asteroids—just stays until noon, period. “The ‘period,’ for Pluto, was always suspicious,” Brown says with a laugh. “It didn’t seem to fit. So maybe that was when I first got the idea that Pluto didn’t belong.” Nowadays Brown, a planetary astronomer at Caltech, has no doubt about Pluto’s place in the solar system: “Pluto is not a planet. There is no logical reason to call Pluto a planet.” Like a growing number of his colleagues, Brown believes Pluto is best understood as the largest known member of the Kuiper belt, a band of rocky, icy miniplanets that orbit the sun in a swath stretching from beyond Neptune to a distance of nearly 5 billion miles. “I don’t think it denigrates Pluto at all to say that it is not a planet. I think Pluto is a fascinating and interesting world, and being the largest Kuiper belt object is an honorable thing to be.” No longer is Pluto a lonely outpost in an otherwise empty frontier. -
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A&A 496, 153–176 (2009) Astronomy DOI: 10.1051/0004-6361:200811096 & c ESO 2009 Astrophysics A census of molecular hydrogen outflows and their sources along the Orion A molecular ridge Characteristics and overall distribution C. J. Davis1, D. Froebrich2,T.Stanke3,S.T.Megeath4,M.S.N.Kumar5,A.Adamson1,J.Eislöffel6,R.Gredel7, T. Khanzadyan8,P.Lucas9,M.D.Smith2, and W. P. Varricatt1 1 Joint Astronomy Centre, 660 North A’ohok¯ u¯ Place, University Park, Hilo, Hawaii 96720, USA e-mail: [email protected] 2 Centre for Astrophysics & Planetary Science, School of Physical Sciences, University of Kent, Canterbury CT2 7NR, UK 3 European Southern Observatory, Garching, Germany 4 Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606-3390, USA 5 Centro de Astrofisica da Universidade do Porto, Rua das Estrelas s/n 4150-762 Porto, Portugal 6 Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany 7 Max Plank Institute für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany 8 Centre for Astronomy, Department of Experimental Physics, National University of Ireland, Galway, Ireland 9 Centre for Astrophysics Research, Science & Technology Research Institute, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK Received 6 October 2008 / Accepted 16 December 2008 ABSTRACT Aims. A census of molecular hydrogen flows across the entire Orion A giant molecular cloud is sought. With this paper we aim to associate each flow with its progenitor and associated molecular core, so that the characteristics of the outflows and outflow sources can be established. Methods. We present wide-field near-infrared images of Orion A, obtained with the Wide Field Camera, WFCAM, on the United Kingdom Infrared Telescope. -
Guide Du Ciel Profond
Guide du ciel profond Olivier PETIT 8 mai 2004 2 Introduction hjjdfhgf ghjfghfd fg hdfjgdf gfdhfdk dfkgfd fghfkg fdkg fhdkg fkg kfghfhk Table des mati`eres I Objets par constellation 21 1 Androm`ede (And) Andromeda 23 1.1 Messier 31 (La grande Galaxie d'Androm`ede) . 25 1.2 Messier 32 . 27 1.3 Messier 110 . 29 1.4 NGC 404 . 31 1.5 NGC 752 . 33 1.6 NGC 891 . 35 1.7 NGC 7640 . 37 1.8 NGC 7662 (La boule de neige bleue) . 39 2 La Machine pneumatique (Ant) Antlia 41 2.1 NGC 2997 . 43 3 le Verseau (Aqr) Aquarius 45 3.1 Messier 2 . 47 3.2 Messier 72 . 49 3.3 Messier 73 . 51 3.4 NGC 7009 (La n¶ebuleuse Saturne) . 53 3.5 NGC 7293 (La n¶ebuleuse de l'h¶elice) . 56 3.6 NGC 7492 . 58 3.7 NGC 7606 . 60 3.8 Cederblad 211 (N¶ebuleuse de R Aquarii) . 62 4 l'Aigle (Aql) Aquila 63 4.1 NGC 6709 . 65 4.2 NGC 6741 . 67 4.3 NGC 6751 (La n¶ebuleuse de l’œil flou) . 69 4.4 NGC 6760 . 71 4.5 NGC 6781 (Le nid de l'Aigle ) . 73 TABLE DES MATIERES` 5 4.6 NGC 6790 . 75 4.7 NGC 6804 . 77 4.8 Barnard 142-143 (La tani`ere noire) . 79 5 le B¶elier (Ari) Aries 81 5.1 NGC 772 . 83 6 le Cocher (Aur) Auriga 85 6.1 Messier 36 . 87 6.2 Messier 37 . 89 6.3 Messier 38 . -
Webfooted Astronomer Seattle Astronomical Society • September 2003 Sept
the Webfooted Astronomer Seattle Astronomical Society • September 2003 Sept. Meeting: September Meeting Galaxy Formation in Speaker: Vandana Desai Rich Clusters Galaxy Formation Vandana Desai grew up in Chicago, in Rich Clusters majored in Astronomy at Caltech in Pasadena, CA, then came directly to Wednesday, September 17 graduate school at the UW, where 7:30 p.m. she is working with Professor Physics-Astronomy Building Julianne Dalcanton. Ms. Desai is Room A102 interested in all topics related to University of Washington galaxy formation and evolution, but Seattle has concentrated her efforts on how galaxies evolve in clusters. Come early at 7 p.m. for coffee and snacks and to visit with your In order to understand this evolu- fellow members! tion, Ms. Desai uses both space- based imaging data as well as numerical simulations. She’ll show examples of both during her talk in September about galaxy formation in rich clusters. She will give a basic description of how galaxies are expected to form if the mass of the Uni- verse is dominated by Cold Dark Matter, and will then discuss how the evolution of a galaxy is affected by its environment, focusing on clusters of galaxies. These are active areas of research at the University of Washing- ton, so she will show us some work in progress, including an extremely high-resolution numerical simulation of galaxies forming within a cluster and new Hubble Space Telescope images of clusters at high redshift. Seattle Astronomical Society Address: Web Page: PO Box 31746 http://seattleastro.org Seattle, -
A Basic Requirement for Studying the Heavens Is Determining Where In
Abasic requirement for studying the heavens is determining where in the sky things are. To specify sky positions, astronomers have developed several coordinate systems. Each uses a coordinate grid projected on to the celestial sphere, in analogy to the geographic coordinate system used on the surface of the Earth. The coordinate systems differ only in their choice of the fundamental plane, which divides the sky into two equal hemispheres along a great circle (the fundamental plane of the geographic system is the Earth's equator) . Each coordinate system is named for its choice of fundamental plane. The equatorial coordinate system is probably the most widely used celestial coordinate system. It is also the one most closely related to the geographic coordinate system, because they use the same fun damental plane and the same poles. The projection of the Earth's equator onto the celestial sphere is called the celestial equator. Similarly, projecting the geographic poles on to the celest ial sphere defines the north and south celestial poles. However, there is an important difference between the equatorial and geographic coordinate systems: the geographic system is fixed to the Earth; it rotates as the Earth does . The equatorial system is fixed to the stars, so it appears to rotate across the sky with the stars, but of course it's really the Earth rotating under the fixed sky. The latitudinal (latitude-like) angle of the equatorial system is called declination (Dec for short) . It measures the angle of an object above or below the celestial equator. The longitud inal angle is called the right ascension (RA for short). -
Stargazer Vice President: James Bielaga (425) 337-4384 Jamesbielaga at Aol.Com P.O
1 - Volume MMVII. No. 1 January 2007 President: Mark Folkerts (425) 486-9733 folkerts at seanet.com The Stargazer Vice President: James Bielaga (425) 337-4384 jamesbielaga at aol.com P.O. Box 12746 Librarian: Mike Locke (425) 259-5995 mlocke at lionmts.com Everett, WA 98206 Treasurer: Carol Gore (360) 856-5135 janeway7C at aol.com Newsletter co-editor: Bill O’Neil (774) 253-0747 wonastrn at seanet.com Web assistance: Cody Gibson (425) 348-1608 sircody01 at comcast.net See EAS website at: (change ‘at’ to @ to send email) http://members.tripod.com/everett_astronomy nearby Diablo Lake. And then at night, discover the night sky like EAS BUSINESS… you've never seen it before. We hope you'll join us for a great weekend. July 13-15, North Cascades Environmental Learning Center North Cascades National Park. More information NEXT EAS MEETING – SATURDAY JANUARY 27TH including pricing, detailed program, and reservation forms available shortly, so please check back at Pacific Science AT 3:00 PM AT THE EVERETT PUBLIC LIBRARY, IN Center's website. THE AUDITORIUM (DOWNSTAIRS) http://www.pacsci.org/travel/astronomy_weekend.html People should also join and send mail to the mail list THIS MONTH'S MEETING PROGRAM: [email protected] to coordinate spur-of-the- Toby Smith, lecturer from the University of Washington moment observing get-togethers, on nights when the sky Astronomy department, will give a talk featuring a clears. We try to hold informal close-in star parties each month visualization presentation he has prepared called during the spring, summer, and fall months on a weekend near “Solar System Cinema”. -
OBSERVING BASICS by GUY MACKIE
OBSERVING BASICS by GUY MACKIE Observing Reports The colorful and detailed photographs we see of celestial objects are not at all like the ubiquitous "fuzzy blobs" we see at the eyepiece. Nevertheless, you are freezing your buns off and loosing much needed sleep for work, the next day so why not make a description of your observations that will make the hunt worthwhile. Here are some suggestions to fill the empty spaces in your logbook and to imprint the observing experience more deeply in your memory. The Basics Your website www.m51.ca has a downloadable log sheet template that is just super, but you can also make up one for yourself or customize the website version to your own needs. The main things to start your report should be the circumstances under which you observed: Observing Location Time (of observing session and of the observation of each object) Optics (type of instrument, eyepiece, filters, power of magnification) Transparency (page 56 of the Observers Handbook) Seeing (for me this is a subjective rating of the atmospheric stability based on Planet features and double star observations) It is good to know the field of view (FOV) of each of your eyepieces in minutes of degree, then you can estimate the approximate size of the object. The sketchpad I use has the FOV for every eyepiece I use taped to the back, a handy reference. To calculate your field of view there are websites that will punch out the both the magnification and the FOV for most eyepieces. You can do it yourself: With any motor drives turned off, place a star near the celestial equator just outside the field of view in the eyepiece so that it will drift across the middle of the field of view. -
Martian Ice How One Neutrino Changed Astrophysics Remembering Two Former League Presidents
Published by the Astronomical League Vol. 71, No. 3 June 2019 MARTIAN ICE HOW ONE NEUTRINO 7.20.69 CHANGED ASTROPHYSICS 5YEARS REMEMBERING TWO APOLLO 11 FORMER LEAGUE PRESIDENTS ONOMY T STR O T A H G E N P I E G O Contents N P I L R E B 4 . President’s Corner ASTRONOMY DAY Join a Tour This Year! 4 . All Things Astronomical 6 . Full Steam Ahead OCTOBER 5, From 37,000 feet above the Pacific Total Eclipse Flight: Chile 7 . Night Sky Network 2019 Ocean, you’ll be high above any clouds, July 2, 2019 For a FREE 76-page Astronomy seeing up to 3¼ minutes of totality in a PAGE 4 9 . Wanderers in the Neighborhood dark sky that makes the Sun’s corona look Day Handbook full of ideas and incredibly dramatic. Our flight will de- 10 . Deep Sky Objects suggestions, go to: part from and return to Santiago, Chile. skyandtelescope.com/2019eclipseflight www.astroleague.org Click 12 . International Dark-Sky Association on "Astronomy Day” Scroll 14 . Fire & Ice: How One Neutrino down to "Free Astronomy Day African Stargazing Safari Join astronomer Stephen James ̃̃̃Changed a Field Handbook" O’Meara in wildlife-rich Botswana July 29–August 4, 2019 for evening stargazing and daytime PAGE 14 18 . Remembering Two Former For more information, contact: safari drives at three luxury field ̃̃̃Astronomical League Presidents Gary Tomlinson camps. Only 16 spaces available! Astronomy Day Coordinator Optional extension to Victoria Falls. 21 . Coming Events [email protected] skyandtelescope.com/botswana2019 22 . Gallery—Moon Shots 25 . Observing Awards Iceland Aurorae September 26–October 2, 2019 26 . -
Spitzer to Size up Newly Found Planet
I n s i d e August 12, 2005 Volume 35 Number 16 News Briefs . 2 The story behind ‘JPL Stories’ . 3 Special Events Calendar . 2 Passings . 4 MRO launch postponed . 2 Letters, Classifieds . 4 Jet Propulsion Laborator y However, the object was so far away Spitzer that its motion was not detected until they reanalyzed the data in January of this year. In the last seven months, to size up the scientists have been studying the planet to better estimate its size and newly its motions. “It's definitely bigger than Pluto,” said found Brown, a professor of planetary astrono- my at Caltech. Scientists can infer the size of a solar planet system object by its brightness, just as one can infer the size of a faraway light bulb if one knows its wattage. The re- Artist’s concept of the flectance of the planet is not yet known. planet catalogued as Scientists cannot yet tell how much 2003UB313 at the light from the Sun is reflected away, lonely outer fringes of but the amount of light the planet re- our solar system. Later this month, the Spitzer Space Telescope flects puts a lower limit on its size. “Even if it reflected 100 percent of the light reaching it, it would Our Sun can be seen will look toward the recently discovered planet in the outlying regions of the solar system. The observation will still be as big as Pluto,” says Brown. “I'd say it’s probably one and a in the distance. bring new information on the size of the 10th planet, which lies half times the size of Pluto, but we’re not sure yet of the final size.