Walter Henry Haas founded the Association of Lunar and Planetary Observers, and, over
his lifetime, provided substantial leadership to the amateur astronomical community in those …

… On 8 December 1845, a retired postmaster and amateur astronomer, Karl Ludwig Hencke ,
discovered the asteroid Astrea. He did this exactly in the way Bessel thought the discovery of …

This paper is based mainly on an examination of surviving correspondence between
William Herschel and his German contemporaries, along with German sources and pre 20th-…

… Then, in December 1845, 38 years after the first observation of Vesta, Karl Ludwig Hencke
discovered the fifth minor planet Astraea. Although the new solar system bodies are much …

… Karl Ludwig Hencke - NASA/ADS … Karl Ludwig Hencke …

… Alexander von Humboldt und Karl Ludwig Hencke an der Tafel Friedrich Wilhelms IV. Ulrich
Paßler: Preußens Mann in Washington. Funf Briefe Friedrich von Gerolts an Alexander von …

… Astraea was discovered on 8 December 1845 by the German amateur astronomer Karl
Ludwig Hencke [1]. The mass of Astraea was determined to be 2.9 × 10 18 kg using the …

The night sky is positively teeming with wonders, from star clusters and nebulae to quasars.
Astronomy is the means by which these and other similar phenomena are discovered and …

… the approximate values of the two variables, applying it to calculate the orbit of Vesta (de
Gasparis 1846b, 1847) and subsequently to that of Hebe, discovered by Karl Ludwig Hencke (…

… Perhaps as a result of this misdirected effort, discoveries stalled until Karl Ludwig Hencke
(1793?1866), after 15 years of fruitless searching, stumbled upon asteroid 5 Astraea in 1845. …