Scientific Astrophotography by Gerald R. Hubbell

Author:Gerald R. Hubbell
Language: eng
Format: epub
Publisher: Springer New York, New York, NY

9.5.4 Deep Sky Imaging

The characteristics that make an AIS best for scientific imaging of deep sky objects are— 1.As large a primary objective as possible with a fast focal ratio less than f/6 if possible for a wide angle FOV. Slow focal ratios of less than f/20 are necessary for small, dim, objects such as remote galaxies.

2.An accurate mount with a capacity to handle 150% of the AIS’s designed load.

3.A mount with an intrinsically high-performance tracking system.

4.A drive corrector, auto-guiding system, or adaptive optics guider capable of providing a root mean square (RMS) periodic error (PE) of less than 25% of the measured full-width-at-half-maximum (FWHM) of the star image.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.