Specializing
in the observations of double stars, Struve conducted a list in 1827 of all the
known double stars observed and are contained in his pivotal work: Stellarum
duplicium et multiplicium mensurae micrometricae. These observations
were found through a 9.5" refractor and the Dorpat meridian circle
from the northern coast of Norway to Ismail. Another accomplishment includes
the redetermination of the "constant of aberration"- the yearly
approximation that a star or other astronomical object will undergo
aberrational displacement resulting from Earth's orbit around the sun. Earlier
measurments of double stars were conducted by astronomers William Herschel and
John Herschel and are whom Struve originated his work off of.
The
Pulkovo Observatory is still standing today in St. Petersberg, Germany and is
open for visitation by appointment if anyone venturing to Germany is interested
in touring it.
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