Angelo Secchi


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Secchi, Angelo

 

Born June 29, 1818, in Reggio nell’Emilia; died Feb. 26, 1878, in Rome. Italian astronomer.

Secchi became director of the observatory at the Roman College in 1849. He is best known for his investigations of the spectra of stars, the sun, the moon, the planets, and comets. In 1863, Secchi made the first classification of stellar spectra. His division of the spectra into four groups was generally accepted until the introduction of the Harvard classification in the mid-20th century. Secchi was one of the first investigators to apply photography to astronomy. He also worked in the areas of geodesy, meteorology, and hydrology. He developed an instrument—the Secchi disk—for measuring water transparency.

WORKS

Le Soleil, 2nd ed., parts 1–2. Paris, 1875–77.
Les Étoiles: Essai d’astronomie sidérale, vols. 1–2. Paris, 1880.
In Russian translation:
Edinstvo fizicheskikh sil: Opyt estestvenno-nauchnoi filosofii, 2nd ed. St. Petersburg, 1880.
References in periodicals archive ?
Contractor address : Via Angelo Secchi 8 00197 Roma
Messier 24 is sometimes called Delle Caustiche, a name attributed to the 19th-century Italian astronomer Angelo Secchi.
Moreover, in the nineteenth century, Angelo Secchi (1818-1878), the founder of astrophysics, was a Jesuit priest.
In 1877, Father Angelo Secchi described the chromosphere in detail including, most notably, a description of its spicules [6, p.
But Worm and colleagues used a low-tech technology, disks devised by Vatican scientist Pietro Angelo Secchi, in the 19th century.
Angelo Secchi, the Jesuit researcher who was the first to classify stars by their spectra.
In 1859, Fr Angelo Secchi, director of the observatory and a confirmed pluralist, observed markings on the surface of Mars which he described as canal), channels.
The first to point this out was an Italian astronomer, Pietro Angelo Secchi (1818-1878), who in 1867 had divided stellar spectra into four classes.
The TNS Romanian office will be based in Bucharest and will be headed up by Angelo Secchi, TNS' Country Manager for Italy and Romania, reporting to the Senior Vice President of TNS' European operation Robert Trehin, with local assistance from Connet-Ro's co-founder Paolo Tamburelli.
In his 1877 book Le Stella, spectroscopy pioneer Father Pietro Angelo Secchi called this ruddy star "La Superba.
Nearly 150 years have now passed since Kirchhoff wrote about the Sun [1] and Father Angelo Secchi illustrated chromospheric spicules for the first time [2, p.
One of the first and most enthusiastic astronomers to do so was Father Pietro Angelo Secchi of the Vatican Observatory.