Astronomy Picture of the Day . ... Credit: EIT , SOHO , ESA , NASA Explanation: The Sun is a bubbling ball of extremely hot gas. ... This picture was taken in ultraviolet (extremely blue) light by the Extreme-ultraviolet Imaging Telescope (EIT) on board the Solar and Heliospheric Observatory (SOHO) spacecraft, which is orbiting the Sun just ahead of the Earth , at the L1 point . SOHO was launched in 1995 and will continually monitor the Sun for several years. ... Publications with keywords: Sun . ...

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• Star Forming Region NGC 6357
• Sunspot Region 30
• Sunspots and Solar Active Regions

... January 6, 1997 . Blue Sun Glaring . Credit: EIT , SOHO , ESA , NASA . ... In this false-color picture , light blue regions are extremely hot - over 1 million degrees , while dark blue regions are slightly cooler. ... This picture was taken in ultraviolet (extremely blue) light by the Extreme-ultraviolet Imaging Telescope (EIT) on board the Solar and Heliospheric Observatory (SOHO) spacecraft, which is orbiting the Sun just ahead of the Earth , at the L1 point . ... About APOD > . ...

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• APOD Index - Nebulae: Emission Nebulae
• APOD: 2001 February 16 - Star Forming Region Hubble X
• APOD: 2007 September 24 - A Galactic Star Forming Region in Infrared

... 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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... We report on our ongoing project ``Infrared Study of HII Regions Associated with Small Clouds.' ... These IR data, combined with optical imaging (which will be obtained from the IAC-80 telescope), IRAS survey maps, and existing CO observations of the associated clouds, will allow us to undertake a detailed investigation of the gas-to-dust mass ratio, initial mass function and the star-formation efficiency in these complexes. ... CHECKPSF: check the PSF (Point Spread Function) model, . ...

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• An IRAF-Independent Interface for Spatial-Region Descriptors
• Interactive Fitting of EUVE Emission Line Spectra
• Classification of Objects in the Guide Star Catalog

Next: Accretion Disks with Up: StarsStellar Populations, Previous: Spectroscopic Analysis of . ... We present and discuss spatially resolved spectra of the accretion disk and the gas stream region as a function of distance from disk center, the spectrum of the uneclipsed light, and the radial temperature distribution in the ultraviolet. Keywords: Accretion disks, Cataclysmic variables . ... In this paper we report on the HST spectral mapping of the nova-like UX UMa. ...

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• Quasar Spectral Features at Intermediate Redshift
• Planetary Science and the Solar System
• Boron in the Very Metal-Poor Star BD-13^o 3442

bdfedit is a tcl/tk program that I've used to create and/or modify several fonts. ... This is also used to automatically save the old glyph when a character is updated, and to save the work area if a new character is selected for editing without saving changes. Glyphs can be dragged from the font to the hold or work areas, or to another character in the font. ... X11 XBM format only. ... large fonts work correctly! . ... Take a look at some fonts I created or maintained using bdfedit. ...

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• Spatial Region Coordinates
• *imcnts* - Find counts in an extended region, after removing an embedded point
• Contour Plot

... June 25, 1996 . A Star Forming Region in the LMC . ... Explanation: Stars sometimes form in colorful ways. Pictured above is a small region in the nearby LMC galaxy where stars are forming. ... It may develop a strong wind which pushes away nearby gas ; it may be so hot and intense that emitted light boils away nearby dust and gas , and it may be so massive that it soon goes supernova and catapults its elements back to the interstellar medium . ... About APOD | ... Specific rights apply. ...

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• APOD: June 16, 1998 - An Active Region of the Sun
• APOD: December 27, 1999 - Solar Moss
• APOD: 2000 July 20 - AR9077: Solar Magnetic Arcade

... 640W A survey of ultracompact (UC) Hii regions has been carried out by searching for 6.669-GHz methanol maser emission from a sample of 535 IRAS-selected candidates. A total of 201 candidates exhibit methanol emission. These sources have been used, in conjunction with previously identified UC Hii regions, to provide a base for further studies of such regions. ... Methanol maser and/or radio continuum emission is found in 364 cases towards IRAS-selected regions. ...

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• HII regions H109-line catalog
• WISH catalogue (sources in the region declination -25 to -9 degrees)
• The use of IRAS data to define H II regions

... Absorption by neutral atomic hydrogen in luminous spiral galaxies provides an excellent tool to study the gas kinematics in their nuclear regions. ... Since the absorption lines are intrinsically narrow as a result of the low temperatures of the optically thick gas, typically 30 to 150 K (Dickey, Salpeter & Terzian 1979), it is surprising that numerous galaxies show H I absorption over a broad range of velocities (a few hundred kms -1 ); see e.g., Fig. ... range . ... NGC 253 . ... NGC 660 . ...

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• The giant HII region NGC 3603
• The Puzzle
• Regular Regions of Interest

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

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• Sunspots and active regions January 01, 2016
• Sunspots and active regions January 10, 2012
• Sunspots and active regions January 01, 2014

... region (region-7.5) [xmmsas_20050815_1803-6.5.0] . ... Local-background regions are in all cases annuli. ... Background regions of this shape should be chosen when there is no extended emission in the FOV, because OA-concentric regions are in general larger than source-concentric ones (thus offer better statisitics), yet sample everywhere approximately the same background level, because the value of the vignetting function is approximately the same at a given radius from the OA. fovbkgannulus =`no'....

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• A cross-region ARF
• Spatial region settings

... 320, P L45-L48 (1997). Abstract . ... 320, P L49-L52 (1997). ... 320, P L53-L56 (1997). ... 320, P L57-L59 (1997). ... 320, P 685-695 (1997). ... 320, P 696-704 (1997). ... 320, P 705-716 (1997). ... 320, P 717-730 (1997). ... 320, P 731-745 (1997). ... 320, P 746-756 (1997). ... 320, P 757-775 (1997). ... 320, P 776-782 (1997). ... 320, P 783-786 (1997). ... 320, P 787-790 (1997). ... 320, P 791-798 (1997). ... 320, P 799-810 (1997). ... 320, P 811-822 (1997). ... helpdesk@link.springer.de . ...

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• Springer LINK:A&A-EE: Table of Contents Volume 322 Number 3 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 317 Number 2 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 318 Number 3 (1997)

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO Acronyms . ... Survey Telescopes . ... Images . ... Star Clusters . ... Usage of ESO Images and Videos . ... Usage of ESO Videos and Images . ... Stars@ESO . ... ESO Science Newsletter . ... VST . ... The first released VST image shows the spectacular star-forming region Messier 17, also known as the Omega Nebula or the Swan Nebula, as it has never been seen before. ...

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• ESO - Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy
• Synthetic Star Forming Region HRDs
• Explanation of the abbreviations used

I-GALFA View of a Galactic Tangent Region . ... Image featured in NAIC Newsletter #46 . I-GALFA image of hydrogen gas in a tangent region outside the Sagittarius arm. ... Because we are viewing this gas in a direction closely aligned with (tangent to) its orbital motion, it appears to be moving away from us (we are orbiting the Galactic center with a similar speed, but our own motion in a different direction). ... The gas near 60 degrees longitude is being viewed tangent to its orbital motion. ...

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• World Day at Arecibo - Examples and Highlights
• Colloquium Schedule
• Research Areas National Astronomy and Ionosphere Center (Arecibo Observatory)

The Earth's magnetosphere global structure is conditioned by the interaction of the Solar wind and Earth's magnetic field. ... Solar wind (SW) - the region outside BS; . ... Auroral field lines (AUR) region - the funnel-shape cavity restricted by the geocentric distance of the order of 6 RE, between surfaces formed by magnetic field lines emerged from the polar and equatorial OVAL borders; . ... Fairfield D.H., Average and unusual location of the Earth's magnetopause and bow shock, J. Geophys. ...

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• The simulative geophysical regions cross-sections coordinates
• The Earth's Magnetosphere
• Designation

... E-mail: . ... 7(878)22-93331, +7(878)22-93449, +7 87878-46298 (fax) . ... The References to my research on Automatic Data Acquisition Systems of the RATAN-600 . ... I made the first version of HTML and the E-mail access to CATS Data Base for selection of Radio Sources; And the E-mail access to SED Data Base for Information System "Evolution of Radio Galaxies" . Project RBFR 01-07-90164: "The Science-Educations Network build in Karachaj-Cherkessia -- Stavropol region." ...

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• Fabry-Perot Interferometer: Gallery Old
• Experimetn COLD: Introduction
• My publications

... Radiance image in Si iv 1402.8 (top-left, in reversed color table), Doppler velocity image (bottom-left), nonthermal velocity image (bottom-right) and HMI magnetogram (top-right) of region "A". ... The yellow box on the Doppler image outlines the region where anti-parallel flows are seen. ... A cluster of such loops was observed on the solar disk in active region NOAA11934, in the Si iv 1402.8 spectral raster and 1400 slit-jaw (SJ) images. ...

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• Press Release: International Collaroration led by Armagh Astronomers
• Solar Active Region 10999 by Deirdre Kelleghan | International Year of
• Abstract 200

... Remote Sensing of Tropical Regions . ... INTRODUCTION: SCIENTIFIC RATIONALE FOR TROPICAL STUDIES .. ... 1.1 Tropical Ocean and Global Atmosphere programme .. ... 1.3 Tropical convective systems and their observations.. ... AIRSPACE REMOTE SENSING OF TROPICAL CYCLONES.. ... THE TROPICAL ATMOSPHERE-OCEAN SYSTEM AND REMOTE SENSING .. ... 3.2.2 Precipitation estimated from passive microwave satellite observations 53 . ... 3.2.5 Requirements of satellite missions.. ... TROPICAL SEAS AND REMOTE SENSING.. ...

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• Dayside aurora [Oulu]
• Seasons variation of neutron flux in polar regions of Mars
• Boundary layer [Oulu]

... The Milky Way in the region of the Southern CтАж . ... Title: The Milky Way in the region of the Southern Cross (Crux) and Centaurus rising in the south-east behind the 24-inch dome . ... The Milky Way in the region of the Southern Cross (Crux) and Centaurus rising in the south-east behind the 24-inch dome NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. ...

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• David Nicholls: CV and publications
• The Music of the Spheres
• Gemini Near-Infrared Integral-Field Spectrograph (NIFS) Spectrograph.

. 1. Move the cursor to the start of the text block you want to define. 2. Type M-space (the META character followed by a space). This sets a 'mark' at the start of the 'region'. 3. Move the cursor to the end of the text block you want to define as the 'region'. This sets the 'point' at the end of the 'region'. You do not have to type anything to set this 'point', the 'point' is the location of the cursor.

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• Using the vi editor
• What is a text editor?
• Setting the visual editor variable