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a.1.Of or relating to Sir William Herschel; as, the Herschelian telescope.
References in periodicals archive ?
We have a host of documented examples of natural selection operating in the wild with all the data an avid Herschelian could desire (Endler, 1986).
He also displayed one of the most unusual telescopes ever fielded, an f/25 folded Herschelian of impeccable finish, featuring a collapsing tube strut that reduces the considerable length of the instrument for portability.
Meet the Jones-Herschelian, a catadioptric Herschelian schiefspiegler that Ed dubs the Chiefspiegler, or Chief for short.
There have long been off axis designs (including the well-known schiefspiegler and Herschelian variants), some of which are practical to build and use, some less so.
Stranger's Sealed Packet (1889) by Hugh MacColl also adopts the conventional Herschelian view of Mars as a simulacrum of Earth--and takes itself far more seriously than does Bellona's Bridegroom.
Wells's "Intelligence on Mars" includes both a Herschelian assertion of topographical parallels ("There is no doubt that Mars is very like the earth") and his own conviction that Martians would not be humanoid.
The design was not widely imitated despite Herschel's success with it, though it is notable that the first commercial telescope maker in the United States, Amasa Holcomb of Southwick, Massachusetts, produced Herschelian reflectors in apertures of 4 to 10 inches.
The Herschelian reflector's lack of central obstruction as well as chromatic aberration promises images of high contrast and superb definition, provided that coma and astigmatism are kept below the diffraction limit.
The folded design entails a tradeoff in optical quality, because the primary mirror must be tilted twice as much as in an unfolded Herschelian.
Herschel stands in tailcoat and leggings on a high platform at the Herschelian focus (what else?
The projected-pinhole type functions like a reversed Newtonian without a diagonal - a Herschelian reflector.
He went on to describe meniscus versions of Newtonian, Cassegrain, Gregorian, Herschelian, Mersenne, Schmidt, and Ross-type reflectors.