21. How de-focusing makes wavefront errors more apparent
... The model beams with various amount of defocus for a telescope with moderate coma and the error beam for that focus setting, that is the difference between the model beam and the model beam for a perfect (no coma) telescope. ...
24. 06.08.2000
... Архив . страниц . Скопление галактик Coma (Волосы Вероники) . ... Скопление галактик Coma , изображенное на снимке является одним из самых плотных из ... На самом деле, скопление Coma такое большое, что свету приходится потратить миллионы ...
26. Figure 1
... The translation of the secondary mirror with respect to the primary mirror causes coma in the telescope optics. ... The tilts shown here are those required to correct for the coma measured by the Shack-Hartmann sensor. ...
27. Amateur Telescope Makers of Boston
... Submitted by Al Takeda on 11/21/2013 09:45:16 . Comet C/2012 S1 (ISON) Coma Region - November 15, 2013 . ... Using a quarter field “Region of Interest (ROI)” setting, I imaged the coma region of Comet ISON. ...
28. Terry Mosely's Bulletins
... Comet LONEOS (2007 F1 LONEOS) is now brightening nicely in the evening skies, now in Eastern Coma, moving from Coma into Bootes on 17 October, when it will lie 9 degrees due West of Arcturus, at about magnitude 4.3. ...
30. Comet Introduction
... However, when a coma develops, dust reflects still more sunlight, and gas in the coma absorbs ultraviolet radiation and begins to fluoresce. ...