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. ...

Еще в разделе: (Показать все результаты (>263) - zebu.uoregon.edu/ )

Next: Feed Polarisation Up: Calibration Previous: Calibration Index . RPFITS files do not contain any information as to whether the telescope calibration was in units of Kelvin or Janskys. On reading the data a default value is set depending on the telescope and frequency of observation. ... ASAP>scans = scantable('2004-11-23_1841-P484.rpf', unit='Jy') # Or in two steps ASAP>scans = scantable('2004-11-23_1841-P484.rpf') ASAP>scans.set_fluxunit('Jy') . ...

Еще в разделе: (Показать все результаты (>29362) - www.atnf.csiro.au/ )

• SKAreport
• plplt
• HIPASS Bright Galaxy Catalog

... 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. ...

Еще в разделе: (Показать все результаты (>308) - mavr.sao.ru/ )

• Ratan-600 observation schedule
• Solar system sector, archive 1998

HST Call for Proposals and HST Primer for Cycle 24 . ... Hubble Space Telescope Primer for Cycle 24 > Chapter 5: Observing Considerations > 5.1 Bright-Object Constraints . ... 5.1.1 ACS, COS & STIS . ... Data may also be affected by bright objects at limits that are substantially fainter than the safety limits discussed in the following sections. ... Bright object count rate limits are mode dependent. ... For the STIS MAMAs, these limits are given in Section 7.7 of the STIS Instrument Handbook . ...

Еще в разделе: (Показать все результаты (>17202) - www.stsci.edu/ )

• Unusually bright 12CO(3-2) condensations in the tidally perturbed Small
• Chapter 7:  Observation Strategies
• Chapter 7: Observation Strategies

Proposal Identi cation No.: A1366 Date Received: 1999-Sep-27 16:55:20 Technical Page Proposal Type: Regular General Category: Astronomy Sub-Category: Spectroscopy Observation Category: Extragalactic Total Time Requested: 75 Hours Proposal Title: 21-cm Observations of Nearby Low Surface Brightness Galaxies : Investigating the LSB Tully-Fisher Relation ABSTRACT: In spite of the diфculty in detecting low surface brightness ( LSB ) ...

Еще в разделе: (Показать все результаты (>5560) - www.naic.edu/ )

• http://www.naic.edu/vscience/schedule/tpfiles/StinebringtagP2952tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/Monnier-RagaignetagA1439tp.ps
• http://www.naic.edu/vscience/schedule/tpfiles/FruchtertagP1015tp.ps

... The J, H and K bands are characterized by a bright background, such a background is mainly due to the emission of atmospheric lines and of thermal radiation. ... If the source cover a large fraction of the slit, spectra off-source must be observed to adequately sample the sky background. ... The on chip integration time (time spent in each position of the slit) must not exceed 40 seconds in J and H bands and 60 seconds in K band. ... We suggest a sequence of 10 for each elementary integration time. ...

Еще в разделе: (Показать все результаты (>7606) - www.arcetri.astro.it/ )

• ISOGAL YSO Candidates (Abstract)
• Hubble Observations Shed New Light on Jupiter Collision
• New Moons of Uranus

.

Еще в разделе: (Показать все результаты (>45935) - www.eso.org/ )

• The Brightness of the Night Sky
• NTT Observations of Bright Comet 1995 Q1 (Bradfield) | ESO
• NTT Observations of Bright Comet 1995 Q1 (Bradfield) | ESO United States

... 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 ? ...

Еще в разделе: (Показать все результаты (>1398) - www.sao.ru/ )

• SAO 6m observations
• Getting the observations
• IPCS observations and data reduction

... Ignacio Ugarte Urra's PhD thesis topic is the investigation of coronal bright points. In his first paper (in collaboration with Gerry Doyle and Maria Madjarska) he investigated the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipole during 3 days of almost continuous observations. ... In general the bright point has a radiance 4 times higher than that of the network. ...

Еще в разделе: (Показать все результаты (>2315) - star.arm.ac.uk/ )

• Observations with the Faulkes Telescopes
• Anatomy of a decline
• Armagh Observatory

Lab . Main page News People . ASA . Master . Master net Homepage . ... Lomonosov Moscow State University Sternberg Astronomical Institute . ... MASTER . ... Lomonosov (ShOK) . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . People, who work in lab . Latest news and news archive . ... All news ...

Еще в разделе: (Показать все результаты (>133) - master.sai.msu.ru/ )

. Latest SNe . Icons off . News . SN List . Extragalactic Novae . Sort by: . Location . Magnitude . Date . Name . Calsky: . R.A. Brightness . Age . Updates . Links . Image index . Image Gallery . Photometry Reference images . Posting Observations . Archives Site Search: . Translations . Related Sites . VSNet

Еще в разделе: (Показать все результаты (>905) - www.rochesterastronomy.org/ )

• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE
• Bright Supernova Bright Supernova
• Supernova 2011ht in UGC 5460

... Flux density at 1 GHz (/Jy): 160 . ... Radio: Limb-brightened to NE, with faint extension to the E. Optical: Brightest to the NE, with faint filaments outside the NE boundary. ... Fesen 1984, ApJ, 281, 658. ... ADS . ... 151 MHz observations (1'.2?3'.1) and Half-Mile Telescope at 1.4 GHz (2'.1?5'.4). ... Radio, IR, optical, UV and X-ray comparison, including VLA at 1.6 GHz (3".8?3".3 and 40''). ... 1988, ApJ, 335, 215. ... IR observations of shocked O 2 . ... Observations of shocked molecular...

Еще в разделе: (Показать все результаты (>2239) - www.mrao.cam.ac.uk/ )

• G120.1+1.4
• G315.4-2.3
• Bojan Nikolic -- 90 GHz Continuum Observations of Messier 66

... Observations of the Moon eclipse on 17.09.97 have shown the Moon details contrasts had decreased and the total radio brightness had fallen at all observed frequency range (from 10% at 1.38 sm down to 2.5% at 13 sm). The fall of the Moon radio brightness has been detected during the eclipse at decemeter waves for the first time. ... Radio emission of the Copernicus crater at 1.38 and 2.7 sm has been detected for the first time. ...

Еще в разделе: (Показать все результаты (>826) - jet.sao.ru/ )

• RATAN-600 antenna
• The ROSAT Bright Survey: II. Catalogue of all high-galactic latitude RASS
• Bispectrum speckle interferometry and future long-baseline interferometry of

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

Еще в разделе: (Показать все результаты (>253) - www.asc.rssi.ru/ )

• MEMORANDUM
• Description of the RadioAstron project, english version
• Статья

... It provides long range planning information to the scheduling team; it provides bright object, timing, and orientation information to the observation planning team; and it provides graphical description of the observations and their constraints. ... The GUI graphically displays the constraints that are computed by Spike and stored in the description files and in the database. ... BOAS processes all bright objects that have entered the database since the last time BOAS was run. ...

Еще в разделе: (Показать все результаты (>1424) - www.adass.org/ )

• ADASS 2002 Conference Proceedings
• Prototypical Operations Support Tools for NASA Interferometer Missions:
• ADASS 2003 Conference Proceedings

Peremennye Zvezdy", . ... 10, N 26 (2010) . ... Star Name: . ... We report an increase of the J-band brightness of the unique supergiant FG Sge by the summer of 2010. It follows from our IR observations of the star (1986-2010) that its J-band brightness level in August, 2008 reached an absolute minimum (~12 m ), and till the beginning of the summer of 2010, the star was almost inaccessible for observations at 1.25 microns. ... The figure shows J-filter brightness variations of FG Sge in 1986-2010. ...

Еще в разделе: (Показать все результаты (>101217) - www.astronet.ru/ )

• The Brightest Spot on Ceres
• Bright Planets at McMath Pierce Solar Telescope
• Arp 220: Spirals in Collision

IMACS MASKS FOR CHAMPLANE RUN JUNE 6-9 2005 updated (17/05/05) zip file containing 16 masks (.SMF format) replacement masks (20/05/05) zip file containing 4 masks (.SMF format) . 17, exposure time 4x30 min bright = mag Field centers taken from .SMF files: field ra(J2000) dec(J2000) POS FLIP N GC Mosaic fields covered Observed? ... Here is an observing elevation chart for this run on June 7 2005. postscript . ...

Еще в разделе: (Показать все результаты (>1926) - hea-www.harvard.edu/ )

• Radio for G347.3-00.5E
• Chandra Images for G189.1+03.0C
• Chandra Images for G350.1-00.3

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

Еще в разделе: (Показать все результаты (>652) - www.astrosociety.org/ )

• ASP: Monster Comet Promises Big Show
• ASP: Light Pollution

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

Еще в разделе: (Показать все результаты (>51) - comet.sai.msu.ru/ )

• Multiwavelength Study of Mira Ceti-Type Variable Stars

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

Еще в разделе: (Показать все результаты (>100) - www.cosmoworld.ru/ )