Heinrich Louis d'Arrest (13 August 1822 – 14 June 1875; German pronunciation: [daˈʁɛ] ) was a German astronomer, born in Berlin. His name is sometimes...

Mare Tranquillitatis. It is named after the German astronomer Heinrich Louis d'Arrest. It lies to the southeast of the crater Agrippa and northwest of...

Observatory who, on 23 September 1846, with the assistance of student Heinrich Louis d'Arrest, was the first person to view the planet Neptune and know what...

Observatory, by astronomer Johann Gottfried Galle (assisted by Heinrich Louis d'Arrest), working from Le Verrier's calculations. It was a sensational...

is extremely dark in color. Freia was discovered by the astronomer Heinrich d'Arrest on October 21, 1862, in Copenhagen, Denmark. It was his first and...

constellation of Pegasus. It was discovered on 30 September 1861 by Heinrich d'Arrest. Heinrich d'Arrest discovered NGC 1 on 30 Sep 1861 while testing the 11-inch...

smaller reflection nebulae were first noted by German astronomer Heinrich Louis d'Arrest, NGC 1973 in 1862 and NGC 1975 in 1864. All three were included...

of 180.47 ± 3.24 Mly (55.333 ± 0.994 Mpc). It was discovered by Heinrich Louis d'Arrest on 28 October 1865. Three supernovae have been observed in NGC...

approximately apparent magnitude of 10. It was first observed by Heinrich Ludwig d'Arrest, in Leipzig, Germany, on 28th and 30 June 1851. In 1991, Andrea...

novel Gulliver's Travels WGPSN D'Arrest 39°S 179°W / 39°S 179°W / -39; -179 (D'Arrest) 2.1 1973 Heinrich Louis d'Arrest; German/Danish astronomer (1822–1875)...

(~211 million ly). NGC 561 was discovered by Prussian astronomer Heinrich d'Arrest in 1862. The luminosity class of NGC 561 is I and it has a broad HI1...

asterism in the constellation Taurus that was described in 1863 by Heinrich Louis d'Arrest and as a result was recorded in the New General Catalogue (NGC)...

velocity is 2507 km/s. NGC 489 was discovered by German astronomer Heinrich Louis d'Arrest on December 22, 1862. NGC 489 is a member of a group of galaxies...

Discovery Urbain Le Verrier Johann Gottfried Galle John Couch Adams Heinrich Louis d'Arrest William Lassell General Kuiper belt Neptune-crossing minor planets...

constellation Coma Berenices. The galaxy was discovered by astronomer Heinrich d'Arrest on May 9, 1864. NGC 4053 is a member of the NGC 4065 Group and is...

redshift it lies 170 million light years away. It was discovered by Heinrich d'Arrest on February 5, 1864. NGC 3995 forms a triplet of galaxies with NGC...

million light-years). The galaxy was discovered by German astronomer Heinrich d'Arrest on 21 February 1863. The SIMBAD database lists NGC 2927 as a radio...

constellation of Aries. It was discovered by German astronomer Heinrich Louis d'Arrest on December 2, 1861 with the 11-inch refractor at Copenhagen. NGC...

NGC 7682 is about 65,000 light years across. It was discovered by Heinrich d'Arrest on September 23, 1864. The galaxy has a bar and two weak spiral arms...

of Coma Berenices. It was discovered by the German astronomer Heinrich Louis d'Arrest on April 22, 1865. John L. E. Dreyer described it as "faint, small...

were being abandoned. The well-known Russian-German astronomer, Heinrich Louis d'Arrest, who had been appointed professor in astronomy at the university...

Pisces. It was discovered on 25 September 1862 by astronomer Heinrich d'Arrest. D'Arrest discovered NGC 525 using his 11-inch refractor telescope at Copenhagen...

000 light-years. The galaxy was discovered by German astronomer Heinrich Louis d'Arrest on August 26, 1864. One supernova has been observed in NGC 7003:...

away in the constellation Perseus. It was discovered by astronomer Heinrich d'Arrest on February 14, 1863. NGC 1268 is a member of the Perseus Cluster...

Observatory astronomer Galle to search with the observatory's refractor. Heinrich d'Arrest, a student at the observatory, suggested to Galle that they could...

Pisces. It was discovered on 25 September 1862 by astronomer Heinrich Louis d'Arrest. D'Arrest discovered NGC 522 using his 11-inch refractor telescope at...

1839 to 1840. On 23 September 1846, Galle and astronomy student Heinrich Louis d’Arrest, since 1845 assistant at the observatory, discovered the planet...

is approximately 70,000 light years across. It was discovered by Heinrich d'Arrest on April 6, 1864. NGC 3994 forms a triplet of galaxies with NGC 3995...

Helmholtz, Conservation of energy. 1846: Johann Gottfried Galle and Heinrich Louis d'Arrest: discovery of Neptune. 1847: George Boole: publishes The Mathematical...

System and was discovered on 25 September 1862 by German astronomer Heinrich Louis d'Arrest. When the Morphological Catalogue of Galaxies was published between...