... CDK20 Sloan r filter Gamma Arietis or Mesarthim Double star at a distance of 160 light years Two stars gamma-1 magnitude +4.83 spectral type B9 gamma-2 magnitude +4.75 spectral type A1p gamma_ari_r_00183_df.fits TARGET = 'Gamma Ari' / target EXPTIME = 0.1 ...
... The faintest stars in the original are about magnitude 10.5, but it's not quite in focus so that will go fainter when it's optimized. 7th magnitude is about halfway down the dynamic range from full bright to the sky background. ...
... data Constellation Right ascension Declination Distance Perseus 03h 44m 34s[] +32° 09.8[] 1,028 ly (315 pc)[] Apparent magnitude (V) 7.3[] Physical characteristics Estimated age Other designations 2 million years C 0341+321, Collinder 41 See also: Open ...
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Ссылки http://www.astro.louisville.edu/shared_skies/archive/select/ic/ic348/20121109/ic348_wikipedia_20130415.pdf -- 177.0 Кб -- 15.04.2013 Похожие документы
... km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object ...
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Ссылки http://www.astro.louisville.edu/shared_skies/archive/select/unusual/hoags_object/20130412/hoags_object_wikipedia_20130422.pdf -- 498.8 Кб -- 22.04.2013 Похожие документы
... here inside the 15 arcsecond diameter circle, is approximately 18th magnitude ... images with a field of about 11x16 degrees revealing stars down to 11th magnitude ... The brightest star in the image, north of center, is magnitude 8.4. ...
... magnitudes brighter, meaning that through most filters stars brighter than 3 th or ... apparent magnitude to an ideal cluster of the same age on an absolute magnitude (M ...
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Ссылки http://www.astro.louisville.edu/shared_skies/documents/shared_skies_student_projects.pdf -- 81.7 Кб -- 17.10.2011 Похожие документы
... The Takahashi FSQ-106ED apochromatic f/5 telescope and Apogee U9000 CCD camera provide quantitative science images over a 4 field of stars at least as faint as 18th magnitude, in exposure times up to 100 seconds. ...