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The comet reached minimum elongation on 13 March, on 25°. [4] It reached its peak brightness in April. Jacobson spotted the comet with naked eye on April 18. David H. Levy reported that the comet had an apparent magnitude of 4.7 with the naked eye on April 24. In the end of April the tail of the comet was reported to be up to 2–3 degrees long.
The comet rapidly brightened as it slowly approached the Earth, and was closest at 0.757 AU (113.2 million km) on 2 August 1907. [4] Edward E. Barnard made a series of photographic observations of the comet between 11 July and 8 September 1907, where he described the comet being visible to the naked eye for two months. [ 5 ]
C/1961 O1 (Wilson–Hubbard) is a non-periodic comet discovered on 23 July 1961. The comet passed perihelion on 17 July, became visible in twilight on 23 July, having a long tail, and faded rapidly, becoming no longer visible with the naked eye after the first days of August.
The word comet derives from the Old English cometa from the Latin comēta or comētēs. That, in turn, is a romanization of the Greek κομήτης 'wearing long hair', and the Oxford English Dictionary notes that the term (ἀστὴρ) κομήτης already meant 'long-haired star, comet' in Greek.
The website, available in English and German, featured a calendar (and/or email notifications) generated for your location including information on aurora, comets, tides, solar and lunar eclipses, planets, bright satellite passes (ISS, HST, etc.), occultations, transits, iridium flares, and decaying satellites that may be visible.
The comet was first spotted as a magnitude 16.4 object by the ASAS-SN survey from images taken at the Cerro Tololo Observatory's 14-cm "Cassius" telescope between 7–11 July 2018. [ 3 ] [ 4 ] It made its closest approach to Earth on 19 October 2019 at a distance of 205 million mi (330 million km) before reaching perihelion on 11 November 2019.
The comet was discovered by the Japanese amateur astronomer Kaoru Ikeya on 3 July 1964. It was the second comet discovered by Kaoru Ikeya, after C/1963 A1. The comet was located in the morning sky, in the constellation of Taurus, at the star cluster Hyades, and had an estimated apparent magnitude of 8. The comet was moving southeast. [3]
John Flamsteed was the first to propose that the two bright comets of 1680–1681 were the same comet, one traveling inbound to the Sun and the other outbound, and Newton originally disputed this. Newton later changed his mind, and then, with Edmond Halley 's help, purloined some of Flamsteed's data to verify this was the case without giving ...