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. ...

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• Astro-2 and the UIT Experiment
• The Galaxy Gallery: Messier Objects
• Galaxy Gallery Page II

... NASA's newest Great Observatory, the Chandra X-Ray Observatory (CXO) -- formally known as the Advanced X-Ray Astrophysics Facility (AXAF) -- launched on July 23, 1999 and represents such an advance. ... Hughes Danbury Optical Systems (HDOS), now Raytheon Optical Systems Incorporated, figured and polished the x-ray optics; Optical Coating Laboratory Incorporated (OCLI) coated the polished optics with iridium; and Eastman Kodak Company (EKC) mounted and aligned the optics and provided the optical...

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• Science with CXO
• The Focal Plane Instruments
• Extragalactic Gravitational Wave Background

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• VISTA - Visible and Infrared Survey Telescope for Astronomy
• Observing with VISTA
• VISTA - Images of Camera

... The Co­Addition Technique Applied to Images of Galaxy Cores W. W. Zeilinger Institut f˜ur Astronomie, University of Vienna, T˜urkenschanzstraúe 17, A­1180 Wien, Austria P. Crane, P. GrosbÜl and A. Renzini European Southern Observatory, Karl­Schwarzschild Straúe 2, D­85748 Garching, Germany Abstract. ... One may therefore take full advantage of the high resolution FOC images by co­adding them with (high signal­to­noise) ground­ based data. ... References Crane, P. et al. ...

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• NICMOS Observes the Galactic Center
• Near IR Astronomy with the ESO VLT
• No Title

... Tonight's Sky . ... Observing . ... Imaging Basics . ... Sharpest-ever ground-based images of Pluto and Charon . ... Speckle image reconstruction of Pluto and Charon obtained in visible light at 692 nanometers (red) with the Gemini North 8-meter telescope using the Differential Speckle Survey Instrument (DSSI). ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter...

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• Observations of optical flares challenge theories on magnetars | Astronomy.com
• Bright planets meet at dusk | Astronomy.com
• Ceres showcases bright spots | Astronomy.com

National Space Agency of Ukraine and . ... The Second International Meeting on WARNING Mission . ... Space Research Institute of Ukrainian National Academy of Sciences - National Space Agency, . ... The Head of Scientific committee of the Project “Warning” is DR V.G.Bar`yahtar, Academitian of Ukrainian National Academy of Sciences. ... Lviv Center Space Research Institute of Ukrainian National Academy of Sciences, . ... National Space Agency of Ukraine, Bozhenka St. 11, 252022 Kyiv-22, Ukraine. ...

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• Practical Astrophysics
• Optical static Fourier spectrometer
• HIGH RESOLUTION IONOSPHERIC MASS SPECTROMETER P-11

. Statistics of sunspot activity . The sunspot indices . My observations . NGDC's observations . The solar regions . Links . About authors . Russian pages . About authors . Observer: Alexey Ryback . Web-design: Alexander Burkov .

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• The Sunspot Observer - Visual indices of solar activity
• The Sunspot Observer
• The Sunspot Observer - Average annual indices of solar activity NGDC - August,

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

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• Îáñåðâàòîðèÿ
• MASTER-Net Science Release on prompt optical observation of the GRB 090424
• Candidate Assignments

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

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• World Data Center for Solar-Terrestrial Physics, Moscow

. Ñàéò âðåìåííî íå ðàáîòàåò.

51. Space Instruments Engineering Institute (IKP-214)

52. http://www.cplire.ru/html/lab234/pubs/2008_16.pdf

53. Irkutsk Cosmic Ray Station

54. The NMW survey homepage

55. Accuracy of World positional CCD observations of the numbered minor planets

56. Âûïóñê N6, äåêàáðü 1996

57. Phil Plait's Bad Astronomy: Bitesize Astronomy

58. http://www.winer.org/Logs/NightLog-2014-11-22.txt

59. Áàëëèñòè÷åñêèé öåíòð Èíñòèòóòà ïðèêëàäíîé ìàòåìàòèêè èì. Ì.Â.Êåëäûøà ÐÀÍ

60. Eugene Trunkovsky