85D/Boethin - Wikipedia
Comet Boethin (officially 85D/Boethin) was a periodic Jupiter-family comet discovered in 1975 by Leo Boethin. It appeared again in January 1986 as expected. Although the comet was next expected at perihelion in April 1997, no observations were reported, and the comet is thought to have disintegrated.
波辛彗星 - 维基百科，自由的百科全书
波辛彗星 （正式名称为85P/Boethin）是1975年发现的一颗周期彗星，由Reverend Leo Boethin发现。它在1986年1月按照预测出现。同时科学家还预测它会在1997年4月再度出现，但那时却未能如愿观测到它。
85D/Boethin - Wikiwand
Comet Boethin (officially 85D/Boethin) was a periodic Jupiter-family comet discovered in 1975 by Leo Boethin. It appeared again in January 1986 as expected. Although the comet was next expected at perihelion in April 1997, no observations were reported, and the comet is thought to have disintegrated.
85P/Boethin
85P/Boethin: Past, Present, and Future Orbits by Kazuo Kinoshita. Discovery. During a routine comet-sweeping session, the Reverend Leo Boethin (Abra, The Philippines) discovered this comet on 1975 January 4.52. He determined the magnitude as 12.3.
Comet 85P/Boethin | Space Reference
Comet 85P/Boethin is an object whose orbit features a relatively short period, low inclination, and is controlled by Jupiter's gravitational effects. NASA JPL has classified 85P/Boethin as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated ...
85D/Boethin
2020年11月3日 · Bright short periodic comet, however, it has been lost since apparitions twice in 1975 and 1986. The light curve is almost along the 40 log r formula. It brightens rapidly just before the perihelion passage, and fades out rapidly soon after the perihelion passage.
The demise of Comet 85P/Boethin, the first EPOXI mission target
2013年2月1日 · Comet 85P/Boethin is a Jupiter Family comet (JFC), and its orbital dynamics are substantially controlled by Jupiter encounters. However, since its inclination is relatively low (5.8°), the comet can approach the orbits of Earth, Mars and …
NASA and the case of the missing comet - University of Hawaiʻi at …
2007年12月13日 · Comet Boethin had been selected as a target because its orbit takes it to a region of the solar system that the Deep Impact spacecraft could have been directed to in 2008. Boethin has an 11.8-year orbit, but can be seen from Earth only during the six months when it is closest to the sun.
IAUC 2745: COMET BOETHIN; P/SCHWASSMANN-WACHMANN 1 …
Bright moonlight made confirmation impossible, and there was no further news of the comet until Feb. 3, when a cablegram from the Rev. Boethin brought a single, very rough observation made on Feb. 1.
The demise of Comet 85P/Boethin, the first EPOXI mission target
Comet 85P/Boethin was selected as the original comet target for the Deep Impact extended mission, EPOXI. Because this comet had been only observed at two apparitions in 1975 and 1986 and consequently had a large ephemeris error, an early intense recovery effort similar to that of 1P/Halley was undertaken beginning in 2005 using the ESO Very ...