THE ARGUMENT AGAINST LONG EXTRAGALACTIC DISTANCE SCALE Gaseous discs of S0 -- Sd galaxies appears to be gravitationally stable or close to stability. Dependence of the gravitational stability parameter of gaseous disc $M_g/M_c$ upon the color index $(B-V)^0_T$ which reflects a relative number of young stars, is found. Here $M_g$ is total mass of gas in a galaxy, $M_c$ - mass of gas which corresponds to marginal stability of gaseous disc at distances from center. ...

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• IAC, Evolution of Galaxies, Conference
• Dm. Bizyaev's Publications
• Previous and Proposed

... Bad Astronomy . ... Dwingeloo 1 is a galaxy that's very close, yet no one saw it until pretty recently. ... Dwingeloo 1 is not alone in the cosmos; it is part of a close group of several galaxies. ... The galaxy group containing Dwingeloo 1 (actually, the group is named after the brightest member, IC 342) probably formed at the same time as the Milky Way, from a truly enormous cloud of hydrogen. ... Two large ones, orbiting each other, can pass a bit of that orbital energy to a smaller galaxy. ...

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• Phil Plait's Bad Astronomy: Q and BA
• Phil Plait's Bad Astronomy: Bad News

. Parent Directory . rules.zip

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• ApSA courses

The starting page - The catalogues page - The list of the PUL2 fields - The list of the Pul-3(Pul-3SE) fields - The list of the PUL_ERS fields . please read short description of the access form controls . ... Relative proper motion in RA *cos(DE), arcsec/yr . ... s. e. relative proper motion in RA *cos(DE), arcsec/yr . ... Number of Pul2 area . ... Check the apropriate checkbox to output these data and radiobutton to select stars within interval. back to the list of the Pul2 fields . ...

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Decomposition of Galaxy Images and Galaxy Rotation Curves Mosenkov A.V.*^, Savchenko S.S.*, Sotnikova N.Ya.* ... The DECA (DEComposition Analysis) code is designed to investigate images of galaxies in an automatic regime (using the simple 'bulge+disc' model) as well as in manual mode for more detailed images and/or for multicomponent structures. ... The GRCF package was created for performing the galaxies rotation curve decomposition using the models of the bulge, the disc, and the dark halo. ...

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• http://www.gao.spb.ru/english/publ-s/viii-rfs/p095.pdf
• http://www.gao.spb.ru/english/publ-s/viii-rfs/p077.pdf
• http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf

Large-Scale Structure of the local Universe with INTEGRAL observatory >200-300 , . ... It is now widely accepted, that practically every galaxy in the local Universe has supermassive black hole and some of these black holes are AGNs. ... 136 ( ) 49- . ... The map of the survey is shown on the left. ... Using Hard X-ray all-sky survey such important properties of nearby Universe as energetics of accretion to the supermassive black holes and large-scale mass distribution of matter were studied. ...

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• INTEGRAL 9-year Galactic Survey
• Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN
• z90-program

Feb. ; 31 31 31 31 31 31 31 31 31 31 18 18 31 18 17mmT4 17mmT4 17mmT4 17mmT4 17mmT4 And VF,VS,R, NND ,AV,R=F Galaxy Galaxy Galaxy SBa Galaxy S0 Oct 30 2005 Oct 30 2005 Oct 30 2005 Oct 30 2005 Dec 19 2006 MAC 0048+3157 PGC 9180 NGC 978B And VF,VS, OVAL , NND ,AV,R=F And MF,MS,EL, NND ,R=F Tri B,LITTLESMALLER, OVAL , ...

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• http://www.wro.org/scodova/RNGC_by_Abell2593.pdf
• http://www.wro.org/scodova/RNGC_by_Constellation-CMi.pdf
• http://www.wro.org/scodova/RNGC_by_Abell779.pdf

... In the table given at a separate sheet enumerate in growing order (from 1 to 13) the size and the mass of each object: Milky Way Galaxy, Andromeda Galaxy, Neutron star, Electron, Mercury, The first satellite "Sputnik I", Venus, Pluto, Proton, Red dwarf, Black cat, White (Polar) bear, the Sun. ... Ashulia's coordinates are 23°53.6' N, 90°19.8' E. Draw pictures explaining your solution. ... The solution has to include an artistic picture with an image of the Bengal Tigerastronomer observing the star. ...

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• http://www.issp.ac.ru/iao/apao/2015/booklet/b0304_ap15_t_en_b.pdf
• III International Astronomy Olympiad, Problems to solve

... About ATMoB . ... The Observing Committee is starting an Observing Awards Program to promote observing among the membership of the Amateur Telescope Makers of Boston. ... Participant must be a current member of the Amateur Telescope Makers of Boston . ... To qualify for your Observing Award Certificate, turn in your worksheet and drawings to an ATMoB Observing Committee member or observing@atmob.org . ... This Excel sheet has useful macros. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...