... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 March 9 . Galaxy and Cluster Create Four Images of Distant Supernova . ... In this case the masses are a large galaxy and its home galaxy cluster . ... Measuring the locations and time-delays between the supernova images should allow astrophysicists to recover the amount of dark matter in the galaxy and cluster. ... About APOD | ...

... August 7, 1998 . M65 Without Moth . ... Explanation: Messier 65 ( M65 ) is a bright spiral galaxy of stars only 35 million light-years away in the constellation Leo . ... The faint blue smudges along the spiral arms of M65 are large clusters of bright, newly formed stars within the distant galaxy while the bright individual stars are foreground objects in our own Milky Way galaxy . ... About APOD > . ...

Supernova 1994D is one of the brighter Sn from the recent past. ... The parent galaxy of this SN, NGC 4526 , was also the host galaxy of SN 1969E ( IAUC 2139 ). ... We have a photometry reference image created by Odd Trondal. ... Images of Supernova 1994D . U of Oregon (Electronic Universe) image 3/26/94 8:10 UT, K-band . ... ING image Undated color . SEDS image Undated . SEDS image Undated (zoom in of last image) . ... U of Oregon (Electronic Universe) light curve . ...

ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

XXVIII General Assembly of the IAU, SPS15 Beijing, August 31, 2012 . N.N. Samus, S.V. Antipin "Variable Stars and Data-Intensive Astronomy" . During the 26th IAU General Assembly in Prague, the IAU Division V (Commissions 27 and 42) considered the future of variable-star catalogues. ... To discuss these problems and to look for their solutions, the IAU Commission 27, on behalf of the IAU Division V, created an informal working group, chaired by the GCVS editor, Dr. Nikolai Samus. ...

... Новости Астрономии и Космонавтики: от ПРАО , от "Звездочета" , от Железнякова , от "Переплета" ; . ... Рейтинг страниц в теме: . ... В списке темы всего страниц: 29 , из них 7 новых (менее 100 дней) и 1 малооцененных (менее 5 оценок) . ... Оценено и сдано в архив! . ... Rambler-Наука (в т.ч. Астрономия) . ... Курс общей астрономии' (4-е издание, для высших учебных заведений) new! ... Основы астрономии (учебный курс на базе основ физики и математики) new! ... Проект 'Физика и астрономия' new! ...

... The distance scales of the objects are matched both by comparing the first derivatives of the angular velocity determined separately from radial velocities and proper motions and by the statistical-parallax method. ... Good agreement between the inferred 0 and our calculations based on space velocities suggests that the Lindblad relation holds throughout the entire sample volume. ... Brandt and Blitz (1993) published the distances and radial velocities for a total of 206 H II-regions. ... Astron. ...