By Ian Morison
An Amateur's consultant to staring at and Imaging the Heavens is a hugely entire guidebook that bridges the distance among the novices' and hobbyists' books and the various specialized and subject-specific texts for extra complex novice astronomers. Written through an skilled astronomer and educator, the booklet is a one-stop reference delivering vast info and recommendation approximately looking at and imaging apparatus, with specific examples exhibiting how top to take advantage of them. as well as supplying in-depth wisdom approximately every kind of astronomical telescope and highlighting their strengths and weaknesses, chapters provide suggestion on making visible observations of the solar, Moon, planets, stars and galaxies. all kinds of recent astronomical imaging are lined, with step by step info given at the use of DSLRs and web-cams for sun, lunar and planetary imaging and using DSLRs and cooled CCD cameras for deep sky imaging.
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Extra resources for An Amateur's Guide to Observing and Imaging the Heavens
5. The expensive refractors which are prized for their exquisite images tend to have more time expended on them by a master optician than is generally the case with mirrors and so will tend to be closer to optical perfection. This is not to say that reflecting telescopes cannot be superb, and one can purchase mirrors, such as those made by the Zambuto Optical Company, which are very close to optical perfection and give images comparable to the very best apochromat refractors. Happily, the vast majority of telescope optics are now excellent and, at a Scottish star party in January 2013, the image of the central region of the Orion Nebula as seen through a Celestron 11-inch Schmidt-Cassegrain was the best I have ever encountered – the stars making up the Trapezium showing as perfect pinpricks of light.
It is unlikely that any of the apochromat telescopes now available meet all parts of his definition. The Rise of Apochromats The era of apochromat telescopes for use by amateur astronomers really began in 1981. An amateur telescope maker named Roland Christen had come across a batch of an abnormal dispersion flint glass that had been ordered by NASA but not used. Christen was able buy this glass and designed some triplet lenses using it for one element. His prototype 5-inch f12 refractor produced the best images of Jupiter of any telescope at the Riverside Telescope Making Conference and earned him the prize for the most innovative optical design.
Happily, the vast majority of telescope optics are now excellent and, at a Scottish star party in January 2013, the image of the central region of the Orion Nebula as seen through a Celestron 11-inch Schmidt-Cassegrain was the best I have ever encountered – the stars making up the Trapezium showing as perfect pinpricks of light. A well-collimated Newtonian or Schmidt-Cassegrain whose mirrors have high-reflectivity coatings can be a superb telescope. How Is the Quality of a Mirror or Lens Assessed?
An Amateur's Guide to Observing and Imaging the Heavens by Ian Morison