Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

Feb 28 2016 Taurus - The Bull By RA Catalog NGC 1312 IC IC IC IC 322 1918 1930 1931 M Her Object Type Glxy (R')SBb: sp Glxy Glxy Non-Existent Glxy D Glxy S0 Glxy S? Glxy Sab Non-Existent Glxy S? Glxy (R)SAB(rs)0/a: Glxy SBbc: Glxy S? Glxy Sbc Non-Existent Glxy S? Glxy SBb Mag Alias/Notes 15.4 15 14.8 15.3 14.2 15.2 15 14.8 14.7 15.3 14.7 15 15.4 14.3 14.7 14.5 15 STAR ...

Astronomy Picture of the Day . ... 15.05.2009 . ... Also cataloged as M97 , the 97th object in Messier's well-known list, its round shape along with the placement of two large, dark "eyes" do suggest the face of a staring owl . One of the fainter objects in Messier's catalog , the Owl Nebula is a planetary nebula , the glowing gaseous envelope shed by a dying sun-like star as it runs out of nuclear fuel . ... Publications with keywords: planetary nebula - M 97 . ... The Cats Eye Nebula . ...

... In 1758, Charles Messier found this nebula while hunting for comets. When he noticed that, unlike a comet, it didn't move, he decided to create his now famous catalog (from his point of view a catalog of things that shouldn't be mistaken for comets). The supernova explosion that created the Crab was seen on about July 4 1054 AD. ... Notice how much more compact M 1 is than the Vela SNR which is 10 times older. ... NOAO 32k jpg . ... SEDS 196k gif . ... SEDS 32k gif . ... SEDS 60k gif . ...

Our team has obtained HST WFPC2 images of this prototypical example of a planetary nebula in a globular cluster. K 648 was cataloged as a star by Kustner, but identified spectroscopically as a planetary nebula by Pease, both in the 1920's. General WFPC2 view of M15 and K 648 (located near top left edge) . ... The nucleus is shown to have an unusually high mass of 0.60 Msun, and we argue that it must have undergone mass augmentation in a binary that has undergone mass transfer or a merger. ...

... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...

Stellarium 0.12.3 . ... Classes . ... FileљStructure . FileљList . FileљMembers . core . modules . Nebula.hpp . ... 51 љ virtual QString getInfoString ( const StelCore *core, const InfoStringGroup& flags) const ; . ... 54 љ virtual double getCloseViewFov ( const StelCore * core = NULL) const ; . 55 љ virtual float getVMagnitude ( const StelCore * core, bool withExtinction= false ) const ; . 56 љ virtual float getSelectPriority ( const StelCore * core) const ; . ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Dust in the Crab Nebula Supernova Remnant . ... Data Handling and Products . ... Science Data Products Forum . ... The Crab Nebula supernova remnant, NGC 1952, is the remains of a massive star that underwent a supernova explosion in AD 1054 (see the HST image ). ... A thesis topic to study in detail the properties of the dust features in the Crab Nebula is outlined. ...

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. ...

... NGC 1501 - планетарная туманность Устрица (Oyster Nebula) или Верблюжий глаз (Camel's Eye Nebula) в околополюсном созвездии Жирафа (Camelopardalis) .. ... Просмотр полной версии : NGC 1501 - планетарная туманность Устрица (Oyster Nebula) или Верблюжий глаз (Camel's Eye Nebula) в околополюсном созвездии Жирафа (Camelopardalis) .. ... NGC 1501 Устрица (Oyster Nebula) или Верблюжий глаз (Camel's Eye Nebula) .: ...

Discover the cosmos! ... 2000 December 29 . The Dark Horsehead Nebula . ... Image Processed by Al Kelly . Explanation: While drifting through the cosmos this magnificent interstellar dust cloud, sculpted by stellar winds and radiation, has chanced to assume a recognizable shape. Fittingly named The Horsehead Nebula it is embedded in the immense complex of star forming gas and dust surrounding the Orion Nebula some 1,500 light-years distant. ... About APOD | ...

This is a study of the interstellar matter associated with the Pleiades star cluster. ... Since that time, the project has been extended to include more thorough tests of dust scattering models, more detailed analyses of the gas kinematics, and power spectrum studies of the multiscale structure of the nebulosity. ... The Pleiades Reflection Nebula. ... Gibson, S. J., & Nordsieck, K. H. 2003, Astrophysical Journal , 589 , 347 . ... B&W preprint: local gzipped PS . Color preprint: local gzipped PS | ...

... Gallery . ... Wide Field Survey Images . Miscellaneous Wide Field Images . ... Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: Trifid Nebula . Description: NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. File name: trifid.jpg . ... Trifid Nebula NOTE: All images are copyright and must not be reproduced or mirrored in any form without written permission. ...

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . This excellent painting of a nebula has won a prize in ESO's 'Catch a Star 2008'. The artist is a young female pupil in Saint Andrews Junior College in Blackrock. Congratulations to Ashley, and to Deirdre Kelleghan, who had inspired her! . Monday, 14 July 2008 22:29 . International Year of Astronomy, Ireland National Node . [Back To Top] .

... Киевский клуб любителей астрономии "Астрополис" > . ... Астрофотография (Модераторы: LifeIsGood , MaxMan ) > . NGC 6888, Crescent Nebula, Серп - он же.. ... Жизнь клуба . ... Астрофотография . ... 07 Август 2007, 21:03:46 ? ... ngc_6888-a-f.jpg (116.87 КБ, 700x575 - просмотрено 160 раз.) ... Клуб Астрополис . ... Ответ #1 : 07 Август 2007, 21:07:35 ? ... Клуб Астрополис, Модератор . ...

CATS home ] [ Back to CATS list ] [ ftp ] . ... This is catalogs of supernovae from 1885 (SN in Andromeda nebula) up to 1991. 787 SNE). ... 1984) . ... The first two comprehansive lists of SNe were published by Zwicky (1958,1965) and included the 54 and 111 objects respectively reported up to 1956 and 1962. The more comlete list was issued by Zwicky (1964), 154 SNe is included. This list was kept updated by the Palomar seach and published (Kowal et.al., ...

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... Astronomy news . ... Double Engine Fuels Star's Remarkable Nebula . ESO has just released a stunning new image of a field of stars towards the constellation of Carina (the Keel). ... Interactions in this double system, surrounded by a dusty disc, may be the engine fuelling the star s remarkable nebula. The new image, showing a very rich field of stars towards the Carina arm of the Milky Way, is centred on the star HD 87643, a member of the exotic class of B[e] stars [1]. ...

... Posts tagged ?crab nebula? ... An email was forwarded with questions related to the data sets found in ?Be an INTEGRAL astronomer? Among the sets, the following scatter plot is based on the Crab data. ... Tags: ANOVA , block design , crab nebula , F-test , gaussinity , integral , light curve . ... Comment . ... Entries RSS . Comments RSS . ... vlk on [MADS] Parallel Coordinates . upvc windows on [MADS] Parallel Coordinates . ... Alfred Inselberg on [MADS] Parallel Coordinates . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La Spiral Planetary Nebula retrouve ses vraies couleurs . ... 07/04/2016 - Plong†йe au centre de la Voie lact†йe . 01/04/2016 - Impact r†йcent sur la face cach†йe de la Lune . ... 22/03/2016 - LтАЩoptique du JWST est achev†йe . ...