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 (>325) - zebu.uoregon.edu/ )

• Galaxy Gallery Page III

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 (>922) - www.astrosociety.org/ )

• ASP: Monster Comet Promises Big Show

... The star formation rate (SFR) of the current SF episode can be estimated from the total H luminosity. ... For the derived total flux F (H )=5.8 erg s -1 cm -2 we obtain a total H luminosity of 10 39 erg s -1 . ... The total mass of ionized gas can be obtained from the average mass density inside the H II region and its volume. An average mass density corresponding to the average electron density of 1 cm -3 within a volume with a diameter of 0.5 kpc yields a total ionized gas mass of 10 6 . ...

Еще в разделе: (Показать все результаты (>1315) - www.sao.ru/ )

• HyperLEDA documentation: compilation of surface brightness (a105)
• Using the sky model
• The ROSAT All-Sky Survey Bright Source Catalogue

... Since moonshine is really reflected sunlight, the full Moon is on the average slightly brighter in mid-winter, when Earth is closest to the Sun. In addition, the distance of the full Moon also varies, due to the ellipticity ("eccentricity") of the Moon's orbit. On 22 December, 1999, the two effects combined to produce the brightest full Moon of the century. ... This year will be the first full moon to occur on the winter solstice, Dec. 22nd, commonly called the first day of winter. ...

Еще в разделе: (Показать все результаты (>817) - www.cosmos.ru/ )

. 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

Еще в разделе: (Показать все результаты (>904) - www.rochesterastronomy.org/ )

• Bright Supernova - Archives
• THE BRIGHT SUPERNOVA 1991T IN NGC 4527; AN AMATEURS PRESPECTIVE
• Supernova 2002fk in NGC 1309

New Moons of Uranus . Brent Gladman's Home Page . ... The discovery of two probable distant satellites of Uranus was reported by B. Gladman, P. Nicholson, J. Burns and J. Kavelaars. ... This discovery was reported in the IAU Circular 6764 . ... Discovery image of S/1997 U 2 . This shows the discovery image of brighter of the two new moons of Uranus. ... This shows the discovery image of faint new moons of Uranus. ... This shows another discovery image of faint new moons of Uranus. ... Uranus . ...

Еще в разделе: (Показать все результаты (>7724) - www.arcetri.astro.it/ )

• Saturn's Moon Titan
• Arcetri Star-Formation Group Publications
• Comet Shoemaker-Levy 9

... 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 (>2097) - star.arm.ac.uk/ )

• Armagh Observatory
• Terry Mosely's Bulletins
• Observations with the Faulkes Telescopes

We report on recent observations of molecular clouds in the tidal Magellanic Bridge; specifically, the Ы?kpc-long, tidally extended "tail" of the Small Magellanic Cloud. In particular, we identify an unusually high 12CO(3-2)/12CO(1-0) ratio of 2-3 to 1, toward one of the clouds, suggesting a warm and dense molecular material associated with imminent or current formation of stars. ...

Еще в разделе: (Показать все результаты (>14968) - www.stsci.edu/ )

• Bright-Object Constraints
• Surface Brightness Profiles
• Abstract

... In the Arms of M83 . ... Credit Copyright: Hubble Legacy Archive , ESA , NASA ; Processing and additional imaging - Robert Gendler Explanation: Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra . ... Publications with keywords: M 83 - spiral galaxy - star formation . Publications with words: M 83 - spiral galaxy - star formation . ... NGC 2683: Edge On Spiral Galaxy . NGC 6188 and NGC 6164 . ...

Еще в разделе: (Показать все результаты (>104783) - www.astronet.ru/ )

• Bright Supernova in M82
• NGC 3293: A Bright Young Open Cluster
• Астронет > Bright Supernova in M82

. Первая страница Назад Продолжить Последняя страница Обзор Графические объекты .

Еще в разделе: (Показать все результаты (>694) - xray.sai.msu.ru/ )

• Seminars

... 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 (>246) - mavr.sao.ru/ )

• The study of star formation in KDG61 and KDG64
• important_en
• Measurement of the dark halo shape in polar ring galaxies

... ESO, the European Southern Observatory . ... ESO Acronyms . ... Survey Telescopes . ... ESO Supernova . ... Star Clusters . ... Stars@ESO . ... This video sequence shows the rapid brightening and slower fading of a supernova explosion in the galaxy NGC 1365. The supernova, which has been named SN 2012fr, was discovered by French astronomer Alain Klotz on 27 October 2012. The images compiled to create this sequence were captured by the TAROT telescope at ESOтАЩs La Silla Observatory in Chile. ...

Еще в разделе: (Показать все результаты (>17077) - www.eso.org/ )

• TAROT discovers a bright supernova in NGC 1365 (annotated) | ESO United States
• TAROT discovers a bright supernova in NGC 1365 (annotated) | ESO Ireland
• TAROT discovers a bright supernova in NGC 1365 (annotated) | ESO Australia

The 1000 Brightest HIPASS Galaxies: HI Properties . ... These belong to 91 new sources for which no optical or infrared counterparts have previously been cataloged, an additional 51 galaxies for which no redshifts were previously known, and 16 galaxies for which the cataloged optical velocities disagree. ... J0001-15, ( ps eps , jpg ) J0035-25, ( ps eps , jpg ) J0105-06, ( ps eps , jpg ) J0221-20, ( ps eps , jpg ) . ... The 1000 Brightest HIPASS Galaxies: Newly Cataloged Galaxies . ...

Еще в разделе: (Показать все результаты (>7850) - www.atnf.csiro.au/ )

• The HIPASS Bright Galaxy Survey
• Brightness Units
• A Search for Bright Kuiper Belt Objects

Constraining Galaxy Formation Epoch - Age Estimation of High Redshift Galaxies - S. Yi et al. Caltech, USA The galaxy formation epoch (z f ) is an important and unique prod- uct of cosmological models, and thus much e ort has been made to constrain it. The most direct way of constraining z f is to estimate the ages of bright elliptical galaxies at high redshifts arrucately, but it has not been an easy task. ... If we adopt our age estimate, the continuum of this galaxy suggests z f  2 { 3. ...

Еще в разделе: (Показать все результаты (>1300) - www.mrao.cam.ac.uk/ )

• http://www.mrao.cam.ac.uk/secure/amiday/white_paper/AMI_Operations_science_case.pdf
• Bojan Nikolic -- 90 GHz Continuum Observations of Messier 66
• Astrophysics Group Publications

SN Search from +50 to the Pole - Part 1. ... The program Sunsrch.zip was presented to the I.S.N.on 1/9/95 to aid the prospective supernovae hunter in detecting extragalactic supernova events in a controlled area of from +50 degrees to the Pole. ... Part 2 of the program is now completed and adds an additional 172 galaxies fainter than magnitude 13.4 (there were two events that occured in that area during the past two years [SN 1995F and SN 1995J]), and brighter than magnitude 12.5. ... THE GALAXIES . ...

Еще в разделе: (Показать все результаты (>4386) - www.sai.msu.su/ )

• APOD: 2001 November 11 - An Annotated Leonid
• APOD: November 30, 1998 - An Annotated Leonid
• APOD: 2007 April 29 - NGC 6302: Big, Bright, Bug Nebula

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 | ...

Еще в разделе: (Показать все результаты (>2264) - www.astronomy.net/ )

• Brightest Northern Hemisphere Galaxy - an Astronomy Net Education Forum Message
• Finding Himalia, The Fifth Brightest Moon Of Jupiter - an Astronomy Net Article
• The Astronomy Shop - Cards - by Astronomy Net

Microsymposium 38, MS083, 2003 (A4 format) MERCURY: LOCAL VARIATIONS OF THE PHOTOMETRIC RELIEF. ... Because of trajectory and pointing angle constraints the planet could be observed from Mariner 10 only over a small range of phase angles between about 75o and 110o. Therefore the photometric investigations are restricted to measuring the distribution of brightness on the Mercurian disk. ... Raw versions of real-time processing pictures FDS 0000984 and FDS 0000986 were used (images 196 and 202). ...

Еще в разделе: (Показать все результаты (>102) - selena.sai.msu.ru/ )

• http://selena.sai.msu.ru/Kozl/Publications/EPSC2012-52.pdf
• http://selena.sai.msu.ru/Pug/Publications/m44_70_pugacheva.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms082.pdf

In the PROJECT we are using the following peculiar . features of RATAN-600 . ... Brightness temperature sensitivity being equal to the antenna temperature sensitivity .. ... Receiver system .. ... Using aperture averaging effect. dual- beam and dual (multi-) frequency filtration, we demonstrated full filtration of the atmosphere noise down to the receiver noise at all scales of acoustics peaks ( Fig.1 , Fig 2 ). ... We select this frequency as the central one in our project. ... Antenna surface . ...

Еще в разделе: (Показать все результаты (>626) - jet.sao.ru/ )

• The ROSAT Bright Survey: II. Catalogue of all high-galactic latitude RASS

. Next: About this document ... Up: Part IV Extragalactic Astronomy Previous: Magnitudes . Sky brightnesses in magnitudes per square arcsecond. This data is from Siding Spring observatory - other observatories will be comparable or worse. U . B . V . R . I . J . H . K . Kn . Dark Sky . 22.8 . 22.5 . 21.5 . 20.8 . 19.3 . 6-day Moon ... 21.3 . 20.8 . 20.4 . 19.2 . Full Moon ... 18.8 . 18.5 . 18.9 . 18.2 . 15.0 . 13.7 . 12.5 . 13.7 . Paul Francis . 1999-03-09

Еще в разделе: (Показать все результаты (>547) - www.mso.anu.edu.au/ )

• Bright, sunny day
• C/2006 P1 (McNaught)
• GSAOI Bulk Motions Science Page

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

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