Abstract
The great comet of 1843 over the Paris Observatory, seen from the north. From Flammarions’s Astronomie populaire, author’s collection
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Notes
- 1.
Philosophical Transactions 101 p. 269–336 (1811) accessible via http://www.jstor.org/stable/107348, see p. 318.
- 2.
*Annuaire du Bureau des longitudes pour 1842, p. 249–608.
- 3.
Anonymous (almost certainly Delambre) *Connaissance des temps pour 1815, p. 215–221, see p. 220.
- 4.
*Annuaire du Bureau des longitudes pour 1931, p. A122–124.
- 5.
However, it is always better to observe its position relative to the largest possible number of distant stars.
- 6.
*Laugier, E. (1849) Comptes rendus de l’Académie des sciences 28 p. 573–576; 37 (1853) p. 874–879.
- 7.
*Comptes rendus de l’Académie des sciences 7 (1838) p. 793–795.
- 8.
*Arago, F. Astronomie populaire, t. 4, p. 787–790.
- 9.
*Arago, F. Astronomie populaire, t. 3, p. 463–467.
- 10.
*Arago, F. Astronomie populaire, t. 3, p. 434–442.
- 11.
*Annales de Chimie et de Physique 27 (1824), p. 89–90, accessible via http://gallica.bnf.fr.
- 12.
Arago was conscious of this importance as he proudly cites his discovery in his «Chronological table of the principal discoveries of Astronomy» at the end of *Astronomie populaire, t. 4, p. 787–789.
- 13.
Tisserand (1893).
- 14.
Herschel, W. (1795) Philosophical transactions 85, p. 46–72, accessible via http://www.jstor.org/stable/106944.
- 15.
Reported by *Arago, F. Astronomie populaire, t. 2, p. 168.
- 16.
*Arago, F. Œuvres complètes, t. 7, p. 112–135, see p. 116.
- 17.
*Herschel (1853).
- 18.
*Flammarion (1892), see p. 67.
- 19.
*Arago, F. Œuvres complètes, t. 10, p. 261–264.
- 20.
This was indeed an old idea, as discussed by Arago himself in his *Œuvres complètes, t. 7, p. 447–454. He considered with reason that an experiment to demonstrate the effect should be made in a vacuum with a torsion balance. This experiment was done with success in 1899 by the Russian physicist Pyotr Lebedev (1866–1912), confirming the theoretical study of James Clerk Maxwell (1831–1879).
- 21.
*Arago, F. Œuvres complètes, t. 10, p. 150–167 (the introduction), 168–183, 184–215, 216–230, 231–250, 251–260, 261–281 and 282–297 (the seven Memoirs).
- 22.
This probably refers to the first successful daguerreotype of the Sun, taken by Daguerre and Arago during the partial solar eclipse of 15 March 1839; see Chap. 11.
- 23.
*Secchi (1875) Le Soleil, t. 1, p. 121–138. Secchi is one of the authors who did not cite the works of Arago on polarization: he only mentioned his photometry of the Sun.
- 24.
This is indeed what Secchi said, but his model with two separate layers was far too simplistic. It remained, however, in use until the middle of the twentieth century.
- 25.
*Annuaire du Bureau des longitudes pour 1852, p. 363–504, accessible via http://gallica.bnf.fr; reproduced with a few changes and some additions in *Arago’s Œuvres complètes, t. 7, p. 1–111.
- 26.
This was before the encounter of Arago with Fresnel, but Arago was already aware of the ideas of Thomas Young about interferences of light.
- 27.
*Humboldt (1816) t. 4, see Note B p. 285.
- 28.
*Arago, F. Astronomie populaire, t. 2, p. 137.
- 29.
The true angular diameter of Sirius is 0″.00585.
- 30.
Philosophical transactions (1829) 119, p. 19–27, accessible via http://www.jstor.org/stable/107764.
References
Tisserand, F. (1893) Discours au nom du comité de souscription de l’Observatoire, Inauguration de la statue de François Arago à Paris le Dimanche 11 juin 1893, Firmin-Didot, Paris, p. 3-9.
*Flammarion, C. (1892) Astronomie élémentaire, Bibliothèque scolaire de la ligue franco-américaine de l’enseignement, Paris.
*Herschel, J.F.W. (1853) Nouveau manuel complet d’astronomie, trad. A.-D. Vergnaud, Roret, Paris; this is the translation into French of his Outlines of Astronomy (1849), 2d. edition available via Google books.
*Humboldt, A. de (1816) Voyage aux régions équinoxiales du nouveau continent, 4 t., Schoell, Paris, et Librairie grecque – latine – allemande, Paris.
*Secchi, A. (1875 et 1877) Le Soleil, 2 t., Gauthier-Villars, Paris.
Tobin, W. (2003) The Life and Science of Léon Foucault, Cambridge University Press.
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Lequeux, J. (2016). Arago Astronomer. In: François Arago. Astrophysics and Space Science Library, vol 421. Springer, Cham. https://doi.org/10.1007/978-3-319-20723-0_8
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