Hans Severin Jelstrup
Encyclopedia
Hans Severin Jelstrup was a Norwegian astronomer.
His specialties were geophysics
and geodesy
. He spent his entire academic career, 1922 to 1963, in the Norwegian Mapping and Cadastre Authority (then known as Norges Geografiske Oppmåling). He also edited the official Norwegian almanac
from 1943 to his death.
His specialties were geophysics
Geophysics
Geophysics is the physics of the Earth and its environment in space; also the study of the Earth using quantitative physical methods. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and...
and geodesy
Geodesy
Geodesy , also named geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three-dimensional time-varying space. Geodesists also study geodynamical phenomena such as crustal...
. He spent his entire academic career, 1922 to 1963, in the Norwegian Mapping and Cadastre Authority (then known as Norges Geografiske Oppmåling). He also edited the official Norwegian almanac
Almanac
An almanac is an annual publication that includes information such as weather forecasts, farmers' planting dates, and tide tables, containing tabular information in a particular field or fields often arranged according to the calendar etc...
from 1943 to his death.