... M24: A Sagittarius Starscape . ... Next huge filaments of dark interstellar dust run across the image and block the light from millions of more stars yet further across our Galaxy . The bright red region on the left is the Omega Nebula , an emission nebula of mostly hot hydrogen gas also known as M17 . A small bright grouping of stars near the image center is the open cluster M18 , while the long bright streak of stars just right of center is M24 . ... M7: Open Star Cluster in Scorpius . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 September 21 . M24: A Sagittarius Starscape . ... The bright red region on the left is part of the Omega Nebula , an emission nebula of mostly hot hydrogen gas also known as M17 . A small bright grouping of stars near the image center is the open cluster M18 , while the long bright streak of stars just right of center is M24 . ...

... GSAOI Home . ... Science . ... Deep imaging at J , H , and K is required to identify all stellar objects, brown dwarfs, and planetary mass objects in the central region of the Orion Nebula Cluster down to masses comparable to that of Jupiter. This is required to establish the initial mass function, i.e., the number of stars of each mass that have formed, in this region of intense massive star formation. ... The fields of the GSAOI detectors are shown as four green squares in each frame. ...

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

... Tadpole Emission Nebula and the Flaming Star Nebula . The constellation of Auriga harbors the cluster NGC 1893 which contains the Tadpole Nebula (IC 410). ... The Flaming Star Nebula, IC 405, is the magenta/purplish area and is the reflection portion of this nebulous region. 5nm Narrowband filters; H-alpha: O-III: S-II - 60: 60: 40 minutes x 600-second sub frames, Total= 2-hours 40-minutes, binned 1x1. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Telescopes and Observatories . ... The majestic star-forming region in the Lagoon Nebula. The pale ring to the right is an internal reflection in the telescope.€а (Image credit: ESO/ VPHAS+/ V. Kalari and J. Vink (Armagh Observatory) . ... The 18 component images were further processed twice. ... Venu and his colleagues use images like this to identify individual young forming stars in the Lagoon Nebula and determine their ages. ...

. This false-color mosaic shows the entire hemisphere of Iapetus visible from Cassini on the outbound leg of its encounter with the two-toned moon in September 2007. Also shown here is the complicated transition region between the dark leading and bright trailing hemispheres. This region, visible along the right side of the image, was observed in many of the images acquired by Cassini near closest approach during the encounter. NASA/JPL/Space Science Institute

IFP gallery SCORPIO (since 2000). Here some data observed on the 6m telescope with IFP installed in the SCORPIO focal reducer are presented. ... Velocity field . Mkn 1157 was observed 1 Sep. 2002 in the Ha emission line. Texp =32x240 sec, seeing 1.5", IFP260. ... This galaxy was observed September, 23 2000 in the Ha emission line, Texp=32x120 sec, seeing 2.5", IFP260. ... PV Cep was observed at the 6m telescope in May, 25 2003 in the [SII] 6716A with IFP501, Texp=36x200 sec, seeing 1.0". ...

... 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) ...

2002. Cable News Network Inc. All Rights Reserved. ... Discovery Communications Inc. ... The New York Times Company. ... The Washington Post Company. ... The International Herald Tribune. ... SPACE.com, Inc. ... United Press International. ... Last modified September 22, 2002. ...

... Comet Animation . ... Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of diffuse material, called a coma, that usually grows in size and brightness as the comet approaches the Sun. ... As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilometers from the head, away from the Sun. ... The evaporated molecules boil off and carry small solid particles with them, forming the comet's coma of gas and dust. ...

... Three day radio-astronomical forecast of the proton activity of the Sun: The figure shows multiwave radio emission scans - graphs of the distribution of intensity I and circular polarization V across the solar disk, obtained at RATAN-600. ... According to this criterion, for a proton flare to arise, the flux of radio emission must be sufficiently high at short wavelengths (blue color scans) and should increase with time compared to the general intensity. ... More about the solar activity . ...

... 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. ...

... Flux density at 1 GHz (/Jy): 250 . ... Radio: Distorted shell, brighter to the E, with pulsar and associated nebula. ... ADS . ... Molonglo at 408 MHz (3': S=299 Jy). ... Einstein observations. ... 1991, ApJ, 372, L99. ... VLA at 327 MHz (3'.6?3'.8: S=469 Jy). ... VLA at 1.4 GHz (15''), plus X-ray spectra. ... 1996, ApJ, 461, 820. ... VLA at 1.5 and 8.4 GHz (8".9?7".8) of pulsar nebula. ... Reach & Rho 1996, A&A, 315, L277. ... VLA at 74 MHz (36''?39'': S=634?70 Jy) and 324 MHz (13'': S=411?50 Jy). ...

... Australia Telescope Compact Array Radio Imaging of the Proplyd-like Objects in the Giant HII Region NGC 3603'' . M?cke, A., Koribalski, B.S. , Moffat, A.F.J., Corcoran, M.F., Stevens, I.R. 2002, ApJ 571, 366 . ... Brenneman, L., Corcoran, M.F., Moffat, A.F.J., Marchenko, S.V., Ptak, A., Skalkowski, G., Mushotzky, R., Stevens, I.R., Mueke, A., Koribalski, B.S. , et al. ... Physical Properties of visual counterparts to X-ray sources in the giant HII region NGC 3603'' . ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Lapping up the Milky Way . ... The Milky Way is an average-sized spiral galaxy, one of about 100 billion islands of stars in the universe. ... Thomas Wright in 1750 and Immanuel Kant in 1755 suggested that the band of light we see is a flattened disc of stars. ... This really depends on your location and sky conditions, but generally you'll see the Milky Way stretched as a band between the northeastern and southwestern horizons. ...

... 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. ...

... inclusive or left to right For example, to create a mask consisting of a large circle with a smaller box removed, one can use the and and not operators: CIRCLE(11,11,15) !BOX(11,11,3,6) and the resulting mask is: 1234567890123456789012345678901234567890 ---------------------------------------- 1:1111111111111111111111.. 2:1111111111111111111111.. 3:11111111111111111111111.. 4:111111111111111111111111.. ... 6:1111111111111111111111111.. ... 1111111111111.. ... 22:111111111111111111111.. ...

This diagram illustrates two block boxes, one above the other, with rectangular clipping regions of different dimensions. ... Both axes depict increments of 5px. The clipping region of the first P box lies entirely within it, offset 5px from the top and left edges of the P box, and 10px from the right and bottom edges. ... The clipping region of the second P box resembles that of the first in style and position, except that the right edge is 5px to the right of the P box's right edge. ...

Astronomy Discussion Forums . Forums: . ... Observation Report From Coyle 07/19/03 . ... Post Message | ... Observation report from Coyle 07/19/03 . ... The background became jet black with the bright ring just floating there in the middle. ... It looked more like a ball. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...