... 2011 July 1 . ... Credit: E. Hubble , NASA , ESA , R. Gendler , Z. Levay and the Hubble Heritage Team . ... Wilson Observatory's 100 inch telescope, Edwin Hubble determined the distance to the Andromeda Nebula , decisively demonstrating the existence of other galaxies far beyond the Milky Way. ... Identifying such a star allowed Hubble to show that Andromeda was not a small cluster of stars and gas within our own galaxy, but a large galaxy in its own right at a substantial distance from the Milky...

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• APOD: August 28, 1996 - NGC 5882: A Small Planetary Nebula
• APOD: April 2, 1997 - A Complete Aurora
• APOD: 2007 December 3 - A Complete Solar Cycle from SOHO

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

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• Fusi Pecci et al.: Photometric Measurements of Simulated Restored Images

Astronomy Picture of the Day . NGC 3242: The 'Ghost of Jupiter' Planetary Nebula . ... 31.03.1997 . ... WFPC2 , HST , NASA Explanation: It's a weed , it's Jupiter , no it's - actually planetary nebula NGC 3242. ... NGC 3242 is such a planetary nebula, with the stellar remnant white dwarf star visible at the center. This nebula is sometimes called "The Ghost of Jupiter" for its similar appearance to the familiar planet. ... March 1997 . ... Publications with keywords: planetary nebula . ...

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• Астронет > NGC 3242: The 'Ghost of Jupiter' Planetary Nebula
• Journal "Peremennye Zvezdy"
• Saturn-Sized Worlds Discovered

... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...

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• ASP: A Taste of Real Astronomy ? The ESA/ESO Astronomy Exercises
• ASP: Mercury Summer 2011
• ASP: Star Science in the Autumn Sky

... SQL | ... Tutorial: determine H0 using SQL queries to LEDA . ... We select in the database all galaxies with known velocity and magnitude and similar to a given template for which we know the distance, the magnitude and the radial velocity. ... We simply have to choose a property which does not depend on the distance, as for example the rotation velocity ( log(vrot) ) and select the galaxies having log(vrot) in a very narrow range around the value for the template galaxy. ... leda@univ-lyon1.fr ...

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Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

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• smalltelae

. Note: This material is from a 1994(!) Talk about CCDs - the physics remains the same, only the detector size has increased since then. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

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• Astronomy HyperText Book
• The Galaxy Gallery: Messier Objects

The process of determining the number and characteristics of sources in astronomical images is so fundamental to a large range of astronomical problems that it is perhaps surprising that no standard procedure has ever been defined that has well understood properties with a high degree of statistical rigour on completeness and reliability. ... In this analysis we present results from testing such algorithms as implemented in the SExtractor, Selavy (Duchamp), and sfind tools on simulated data. ...

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• PPTA Dashboard | Projects
• Molecular gas

... June 9, 1999 . NGC 4414: A Telling Spiral . ... the Hubble Heritage Team ( AURA / STScI / NASA ) . Explanation: How far away is this galaxy? ... Spiral galaxy NGC 4414 contains many Cepheid variable stars that oscillate in a way that allows astronomers to estimate their distance. ... NGC 4414 shows many classic spiral galaxy features, including thick dust lanes , a central region rich in old red stars, and winding spiral arms glowing with young blue stars. ... About APOD > . ...

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• APOD: 2001 January 23 - Spherical Planetary Nebula Abell 39
• APOD: April 2, 1999 - Stars of NGC 206
• APOD: 2000 July 13 - LP 944-20: A Failed Star Flares

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

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... Planets . ... Earth Satellites . ... Looking in the direction of the constellation Cygnus the Swan and launched by NASA in 2009 is the Kepler Space Observatory.Many previous missions searching for exoplanets mainly detected large giant planets, like large hot Jupiters (it is easier to detect larger planets).However KeplerтАЩs main objective is to search for much smaller planets located in a habitable zone which is not too close nor too far from their star; planets which may be just like our Earth. ...

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• Kepler-10c: the First Mega-Earth | Astronotes
• A Rolling Stone on the Moon | Astronotes
• Armagh Planetarium: Discover Primary Science | Astronotes

... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions

... For example, take this new picture of an object in space called a planetary nubula it actually has nothing at all to do with planets! A planetary nebula is an object that forms when a star like the Sun (our nearest star) runs out of fuel. ... The star also loses its outer shells of gas, which float off into space. ... Cool Fact: Some planetary nebulae (when you talk about more than one nebula, you call them nebulae ) have two symmetrical clouds of gas on either side of the central star. ...

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• The Cross-correlations
• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)
• Richest Planetary System Discovered | ESO

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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... Posts tagged ?incompleteness? ... Comment . ... The notions of missing data are overall different between two communities. ... Astronomers?I?m not sure how they think but my impression so far is that a missing value in one attribute/variable from a object/observation/informant, all other attributes related to that object become useless because that object is not considered in scientific data analysis or model evaluation process. ... 2 Comments . ... Entries RSS . ... Entries (RSS) and Comments (RSS)...

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• Comments on: Change Point Problem By: vlk By: vlk By: hlee By: vlk
• The AstroStat Slog light curve
• How did I collect the tweets from the 219th meeting of the AAS

... Radio astronomers at Arecibo Observatory observe a wide variety of phenomena in the Milky Way and in other galaxies. ... Some REU projects are carried out on pre-existing data, and others rely on obtaining new data. ... Deriving a new shape model from existing radar images has been a popular student project in past years, and there are data sets that could be used for this. We are collecting thermal infrared emission data for many of the near-Earth asteroids that are also observed with radar. ...

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• Arecibo Radar Discovers Triple Near-Earth Asteroid
• azencRackGearRunout
• compare dlpf shapes

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

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• M.E. Bailey, Director
• Armagh Observatory
• M.D. Smith, Research Astronomer

... Space Research Institute . Main . ... Main research and development work completed in 2012 and ready for implementation . ... Main research and development work completed in 2011 and ready for implementation . Main research and development work completed in 2010 and ready for implementation . Main research and development work completed in 2009 and ready for implementation . Main research and development work completed in 2008 and ready for implementation ...

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• Main results of the experimental and theoretical research completed in 2010
• Comparing Masses Without Use of Gravity
• Main results of the experimental and theoretical research completed in 2009

... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... What are typical star-to-star distances in globular clusters compared to stellar distances in our region of the galaxy? ... RELATED TOPICS: GLOBULAR CLUSTERS . ... Get instant access to subscriber content on Astronomy.com! ...

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• What can astronomers tell us about the different colors on the surface of
• Astronomers discover that galaxies are either asleep or awake | Astronomy.com
• Astronomers recently discovered that Scholz's star passed close to the Sun

... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

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• IRAS01005+7910
• Metagalaxy sector, archive 2015