In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

... 4.01.2005 . ... Since we are stuck inside, and since opaque dust truncates our view in visible light , nobody knows for sure. ... In the Milky Way's center is a very bright core region centered on a large black hole . The Milky Way 's bright central bulge is now thought to be an asymmetrical bar of relatively old and red stars. ... News: APOD editor to speak in January in New York . January . ... Publications with keywords: Milky Way - stars . Publications with words: Milky Way - stars . ...

... The two plots below illustrate two of the selection criteria: velocity width (limited by the channel width) and the HIPASS peak flux. Zoom-in on Figure 3a. The two plots below give some idea of the shape of the HI spectra. ... For Gaussian HI spectra the difference is slightly more, but for irrgeular galaxies, pairs and groups many different shapes are observed. ... Some trend towards detecting more narrow-width galaxies at higher velocities is visible. ...

Making HST Pictures: Examples and Illustrations . ... These illustrations represent some of the steps and techniques used to produce “pretty pictures” from HST images. ... TIFFs (ftp) . ... Separate images are exposed through different color filters. ... An alternate way to make color images . ... Eight bit (one byte) images contain 256 different values that may be represented by 256 shades of gray or 256 arbitrary colors from a color map (or palette) of all possible colors. ...

... 2013 May 8 . Earth's Major Telescopes Investigate GRB 130427A . Illustration Credit: NASA , DOE , Fermi LAT Collaboration . Explanation: A tremendous explosion has occurred in the nearby universe and major telescopes across Earth and space are investigating. ... Neutrino , gravitational wave , and telescopes designed to detect only extremely high energy photons are checking their data for a GRB 130427A signal. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... A bright nova has recently been discovered in the constellation of Delphinus (The Dolphin). ... The nova was confirmed late on August 14 at a magnitude of 6.3 (in a dark sky the faintest naked-eye stars are approximately 6.0 magnitudes - the lower the magnitude the brighter a star). ... Nova explosions occur in binary systems composed of a star similar to our Sun but only ~1/10 of its mass, and a star called a white dwarf. ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Galaxies . ... Window on the Universe . ... Gamma-Ray Bursts . ... This artistтАЩs impression shows two galaxies in the early Universe. ... As the light from the burst passes through the two galaxies €аon the way to Earth (outside the frame to the right) some colours are absorbed by the cool gas in the galaxies, leaving characteristic dark lines in the spectrum. ... Early Universe : Cosmology : Phenomenon : Gamma Ray Burst . ...

... 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. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... HIPASS results . ... Of the BGC galaxies, 138 have redshifts for the first time. ... We really need ALFA to address that faint end. ... This estimate accounts for the smaller beam size, the number of pixels, and the available solid angle. ... HIPASS (with an integration time of 250 sec per pixel) was complete only for M * galaxies at cz ALFA (with the same intergration time) would be complete to 15,000 km/s . ... The integration time would be only 1 sec per beam for a total time of about 2.6 hours. ...

... Развивающая игрушка Лягушка Bright Starts привлечет ребенка красочным видом, подарит новые ощущения и вскоре станет любимой игрушкой, приятной и веселой. ... Цвет: розовый . ... Цвет: Коричневый . ... Цвет: натуральный . ... Кружка имеет силиконовую крышку оранжевого цвета с прорезью для питья. ... Цвет: синий . ...

. The measuring unit of the electrical impedance tomograph. The belt with electrodes for measurements on thorax . The EIT animation reconstructed from the data measured on the volunteer's thorax: . Right . Anterior . The animation represents one respiratory cycle, the cardiac pulsations are visible also. The static visualization is demonstrated: 1 - spinal column, 2 and 3 - right and left lungs, 4 - heart. The brightest colors correspond to highest conductivity .

... SKY IN THE HIGH-ENERGY GAMMA-RAYS ACCORDING TO THE DATA OF SAS-2 (1972-1973), COS B (1975-1982), GAMMA 1 (1990-1992) AND EGRET (1991-2000) . ... View of the sky in the gamma-rays of energy above 100 Mev according to the EGRET data. The small bright spots correspond to compact sources. ... COMPACT SOURCES . Compact high-energy gamma-ray sources according to the 3-d EGRET catalog. ... Unidentified sources . ... previous page . next page . main page . CYGAM (PDF, 450 Kb) . ...

... 78Mingaliev+ J/A+A/370/78 RATAN-600 NCP bright radio sources (Mingaliev+, 2001) ================================================================================ Observations of the bright radio sources in the North Celestial Pole region at the RATAN-600 radio telescope. ... The flux densities of 171 sources in the Declination range +75deg +88deg are presented; typical flux density errors are 5-10 percent including calibration errors. ... Flux density at 2.3GHz 48- 52 F5.3 Jy e_S2.3GHz ? ...

. Search this album . Gallery . :: Stromlo before the 2003 fires . :: Norm Banham's pictures of Mount Stromlo . :: Bright, sunny day . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Bright, sunny day . File name: ss0032.jpg . Owner: Gallery Administrator . Dimensions: 1024 x 822 px . Page: 1 2 3 4 5 6 7 8 9 10 25 26 . Powered by Gallery 3.0.9 (Chartres) . Login

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

... Meta Index / Home Page / Source Flagging Algorithms Any source either having a raw count-rate >= 80, or with quality flag bit 4 set (mod-8 pattern) is checked for "close" neighbours, which may be flagged. ... Check each source in the vicinity of the bright source . ... Compute the maximum distance for flagging the source from maxRad = max(exclusionradius, min(70.0, 35.0 * countTable(i) // 80.0) ) If the flagging is done by omdetect, the exclusion radius is determined from the algorithm at the end . ...

. Первая страница Назад Продолжить Последняя страница Обзор Графические объекты .