. This is a new popup window - close it when you are done . Submitted by John Buonomo on 07/24/2007 01:28:18 . NGC7000ааThe North American Nebula In Cygnus . Modified Canon 350d Celestron CGE William Optics 80FD f/6.9 550mm Celestron LPR Seeing Moderate 34x600 6x900 N Billerica MA . 07-20-07/07-21-07 . Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

Next: The Computer Hardware Up: The Care and Previous: Introduction . ... The weather is not as bad as one might expect, base on statistics from 1991 through 1993 one can expect about 120 usable nights a year with about thirty of those being totally cloudless. ... This, along with the fact that the telescope drive motor is misgeared, made it difficult for the telescope to collect research data. ... The dome houses a 14" Celestron Schmidt-Cassegrain telescope that was installed in 1981. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Apple have recently made it possible for you to БЂњgiftБЂќ one of their applications to someone as a present, and how amazing would it be for you astronomy loving friend to be able to use their ipod or ipad as a personal star chart to identify everything you see in the sky at any given time? ... If you love the idea of this for yourself, but are feeling the pinch with Christmas coming, there are also theб  free apps Pocket Sky and Space Brains . ...

... Finders mounted permanently in COAST telescopes and standalone portable finders are all documented. ... 1D DIMM Mode . ... CCD Readout . ... The Z dimension is time (3ms between frames in 2D DIMM mode, 4ms in transverse DIMM mode) and of depth as specified in the data file dialog. ... Displays a red grid in the video display area that marks the fast readout regions useful in 1D DIMM mode . ... Displays a blue grid in the video display area that marks the fast readout regions useful in 2D DIMM mode ....

Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...