... As an experiment, I made some three-color images of Messier 42, more commonly known as the Great Nebula of Orion. ... green enhanced . ... halfsize or fullsize . ... Each image is a ``true color'' composite of three monochromatic images, in which the red, green, and blue intensities each correspond to the intensity of one of the original images. ... The HST image is assembled from different filters than mine: red is Nitrogen [II] at 6583 , green is H-alpha at 6563 , and blue is O [III] at 5007 . ...

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 | ...

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

Other Supernovae images In my effort to make the Bright Supernova pages be the principle place on the to find information on SN, I have on this page placed links to all of the "other" SN images which I have encountered. ... Associazione Astrofili Spezzini . ISN image . ... Padova-Asiago image 1995ac in Anonymous . Padova-Asiago image 1995W in NGC 7650 . ... Padova-Asiago image 1995V in NGC 1087 . ... CfA image . ... Padova-Asiago image late 1994Y in NGC 5371 . ... ISN image 1994W in NGC 4041 . ...

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

... Main page . ... Filters . ... Direct images . ... Back to SAO web page . Last update: 21 Nov 2015 . This page is designed by A.V. Moiseev . ... The SCORPIO-2 project: . ... The direct images are obrained in the 6.1х6.1 arcmin field-of-view with any available filters ...

... Non-NGC Images . ... Bright nebula in Orion (and Horse Head)..... image . ... Diffuse nebula in Orion (M78)..... image ..... caption . ... Galactic cluster in Auriga (M37)..... image ..... caption . ... Galactic cluster in Gemini (M35)..... image ..... caption . ... Rosette nebula..... image ..... caption . ... Spiral galaxy in Cepheus..... image ..... caption . ... Galactic cluster in CMa (M41)..... image ..... caption . ... Galactic cluster in Monoceros (M50)..... image ..... caption . ... Galaxy ...

... Many of the brightest blue images are of a single, unusual, beaded, blue, ring-like galaxy which just happens to line-up behind a giant cluster of galaxies. Cluster galaxies here typically appear yellow and -- together with the cluster's dark matter -- act as a gravitational lens . A gravitational lens can create several images of background galaxies , analogous to the many points of light one would see while looking through a wine glass at a distant street light. ...

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... Iowa Robotic Telescope | ... Talon is based on OCAAS, a software suite developed by software engineer Elwood Downey ( Clear Sky Institute ) for use at the University of Iowa ?s first remote facility (the ATF, or Automated Telescope Facility). ... XObservatory : Telescope Control Interface . ... This program calls upon and coordinates much of the interrelated portions of the Talon architecture, and forms the primary control panel for the telescope, dome, and peripheral systems when used locally. ...

SAI VO . ... Web Services . Catalog Access Services . ... SAI Web Services . ... This service aims to automatically match stars in FITS image provided with catalogue and add the correct WCS keywords to its FITS header. ... Service Web Interface . ... The service is available here To use it, you has to provide the image as a Base64-encoded string, along with the rough information on image field of view size and center (the latter may be deduced from FITS header keywords like 'RA' and 'DEC'). ...

Stellarium 0.12.3 . ... ScreenImageMgr Class Reference . ... createScreenImage (const QString &id, const QString &filename, float x, float y, float scale=1., bool visible=true, float alpha=1., float fadeDuration=1.) ... setImageAlpha (const QString &id, float alpha) . ... setImageXY (const QString &id, float x, float y, float duration=0.) ... virtual voidљ . ... the ID for the desired image. virtual void ScreenImageMgr::draw . ... the ID for the desired image. virtual void ScreenImageMgr::init . ...

... Packages that use FloatProcessor . ... Methods in ij.plugin.filter that return FloatProcessor . ... ShortProcessor. toFloat (int channelNumber, FloatProcessor fp) . Returns a FloatProcessor with the same image, no scaling or calibration (pixel values 0 to 65535). abstract FloatProcessor . ... Returns a FloatProcessor with the image or one color channel thereof. ... FloatProcessor. toFloat (int channelNumber, FloatProcessor fp) . ... Returns a FloatProcessor with one color channel of the image. ...

... In collaborative work with David Garc?a Alvarez (an Observatory PhD student now at Harvard) and John Butler, an extensive study of the RS CVn binary HR1099 was completed leading to two papers; the first on Doppler imaging and the second on flare activity. Spectra for the Doppler imaging were taken at two different sites, Kitt Peak National Observatory (KPNO), Arizona, and Mount Stromlo Observatory (MSO), Australia, during the 1998 MUltiSIte COntinuous Spectroscopic (MUSICOS) campaign. ...

... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...

Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...

... These images were provided to Winer Observatory by Mike Shade of Sonoita Hills Observatory as an example of the outstanding work done by local Sonoita amateur astronomers. ... All images on this page were taken with a 6-inch Astro-Physics aprochromatic refractor at Sonoita Hills Observatory using an SBIG ST-7 camera. ... Object: Galaxy Messier 100 . ... Date: March 2001 . ... All images on this page were taken with an f/5 Newtonian reflector at Sonoita Hills Observatory using an SBIG ST-7 camera. ...

Images and text 2003 Paul Valleli . While up at Stellafane for pre-convention preparations, I spent some early morning times, experimenting with different videography setups on the 13" F/10 Schupmann at the McGregor Observatory. ... Mars was too bright and would have required neutral density filters. ... Next time, I will try 12mm and 9mm projections. ... I aquired about ten thousand frames by 3AM, at which time a breeze picked up and the seeing went to Hellas! ... 2003 Paul Valleli . ...

... Bad Astronomy . ... Site Info . ... As part of the SINS project, many images of supernova 1987A have been made with the Hubble Space Telescope. This is an image of the supernova and surrounding nebulosity. ... This image shows the ring in [OIII] fading over a three year period. ... I was trying to bring out middle range brightness details in the ring around the supernova, and scaled the images so that bright and dark values both came out as black (technically, I used a sin 2 color lookup table). ...

. RC-archive . RC0209+0501b . RC0213+0516 . RC0226+0512 . RC0250+0512 . Radio source parameters . The R-band contours (BTA) superposed . on 4860MHz image (VLA) ps . R.A.(B1950) Dec.(B1950) Freq. Comp. Comp. [MHz] size["] flux[mJy] 02:48:15.71 +05:03:52.4 8439.9 .3 6.6 02:48:15.77 +05:03:52.5 .3 6.6 02:48:15.72 +05:03:52.5 1425.0 1.5x . Parameters of optical candidates for identification . The map (4860MHz,VLA) superposed . on the R-band image (BTA) ps . Last updated 24 Jul 2001