Eduard Heis (18 February 1806,

Cologne Cologne ( ; ; ) is the largest city of the States of Germany, German state of North Rhine-Westphalia and the List of cities in Germany by population, fourth-most populous city of Germany with nearly 1.1 million inhabitants in the city pr ...

– 30 June 1877 in

Münster Münster (; ) is an independent city#Germany, independent city (''Kreisfreie Stadt'') in North Rhine-Westphalia, Germany. It is in the northern part of the state and is considered to be the cultural centre of the Westphalia region. It is also a ...

) was a German mathematician and

astronomer An astronomer is a scientist in the field of astronomy who focuses on a specific question or field outside the scope of Earth. Astronomers observe astronomical objects, such as stars, planets, natural satellite, moons, comets and galaxy, galax ...

. He completed his education at the

University of Bonn The University of Bonn, officially the Rhenish Friedrich Wilhelm University of Bonn (), is a public research university in Bonn, North Rhine-Westphalia, Germany. It was founded in its present form as the () on 18 October 1818 by Frederick Willi ...

in 1827, then taught mathematics at a school in Cologne. In 1832 he taught at

Aachen Aachen is the List of cities in North Rhine-Westphalia by population, 13th-largest city in North Rhine-Westphalia and the List of cities in Germany by population, 27th-largest city of Germany, with around 261,000 inhabitants. Aachen is locat ...

, and remained there until 1852. He was then appointed by

King Frederick William IV Frederick William IV (; 15 October 1795 – 2 January 1861), the eldest son and successor of Frederick William III of Prussia, was King of Prussia from 7 June 1840 until his death on 2 January 1861. Also referred to as the " romanticist on the t ...

to a chair position at the

Academy of Münster An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the go ...

in 1852. In 1869 he became rector of the Academy. While at the academy he made a series of observations of the night sky, including the

Milky Way The Milky Way or Milky Way Galaxy is the galaxy that includes the Solar System, with the name describing the #Appearance, galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galax ...

zodiacal light The zodiacal light (also called false dawn when seen before sunrise) is a faint glow of diffuse sunlight scattered by interplanetary dust. Brighter around the Sun, it appears in a particularly dark night sky to extend from the Sun's direct ...

star A star is a luminous spheroid of plasma (physics), plasma held together by Self-gravitation, self-gravity. The List of nearest stars and brown dwarfs, nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night sk ...

s, and shooting stars. These were published in the following works, among others: * ''Atlas Coelestis Novus'', Cologne, 1872. * ''Zodiakal-Beobachtungen''. * ''Sternschnuppen-Beobachtungen''. * ''De Magnitudine'', 1852. His star atlas, which was based on Argelander's ''Uranometria Nova'' (1843), helped define the selection of

constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ...

s in the northern sky that was officially adopted by the International Astronomical Union in 1922. His other publications included a treatise on the eclipses during the

Peloponnesian war The Second Peloponnesian War (431–404 BC), often called simply the Peloponnesian War (), was an Ancient Greece, ancient Greek war fought between Classical Athens, Athens and Sparta and their respective allies for the hegemony of the Ancien ...

Halley's Comet Halley's Comet is the only known List of periodic comets, short-period comet that is consistently visible to the naked eye from Earth, appearing every 72–80 years, though with the majority of recorded apparitions (25 of 30) occurring after ...

, and some mathematical text books. He was also the first person to record a count of the

Perseid meteor shower The Perseids are a prolific meteor shower associated with the comet Swift–Tuttle that are usually visible from mid-July to late-August. The meteoroid, meteors are called the Perseids because they appear from the general direction of the const ...

in 1839, giving an hourly rate of 160. Observers have recorded the hourly count every year since that time.

Awards and honors

Order of the Red Eagle The Order of the Red Eagle () was an order of chivalry of the Kingdom of Prussia. It was awarded to both military personnel and civilians, to recognize valor in combat, excellence in military leadership, long and faithful service to the kingdom, o ...

, 1870. * Awarded doctor ''

honoris causa An honorary degree is an academic degree for which a university (or other degree-awarding institution) has waived all of the usual requirements. It is also known by the Latin phrases ''honoris causa'' ("for the sake of the honour") or ''ad hono ...

'' by Bonn University, 1852. * Foreign associate,

Royal Astronomical Society The Royal Astronomical Society (RAS) is a learned society and charitable organisation, charity that encourages and promotes the study of astronomy, planetary science, solar-system science, geophysics and closely related branches of science. Its ...

of London, 1874. * Honorary member, Leopoldine Academy, 1877. * Honorary member, Scientific Society of

Brussels Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...

, 1877. * The crater Heis on the

Moon The Moon is Earth's only natural satellite. It Orbit of the Moon, orbits around Earth at Lunar distance, an average distance of (; about 30 times Earth diameter, Earth's diameter). The Moon rotation, rotates, with a rotation period (lunar ...

is named after him.

References

External links

*
Atlas Coelestis Eclipticus, Coloniae ad Rhenum, 1878 da www.atlascoelestis.com
{{DEFAULTSORT:Heis, Eduard 1806 births 1877 deaths 19th-century German astronomers German Roman Catholics 19th-century German mathematicians Scientists from Cologne Scientists from the Rhine Province University of Bonn alumni Academic staff of the University of Münster