Halley's Comet Returns to Perihelion

The most famous comet swings back through the inner solar system on its 76-year orbit, having last appeared in 1986.

Halley's Comet (1P/Halley) is the only known short-period comet consistently visible to the naked eye; last perihelion 8-9 February 1986, next perihelion 28 July 2061 (then about 27 March 2134)^[1][2][3]
Its period varies between about 74 and 79-80 years; the orbit is retrograde with eccentricity 0.967, perihelion 0.59 au (between Mercury and Venus) and aphelion about 35 au^[1][3]
In 1705 Edmond Halley linked the 1531, 1607 and 1682 comets and predicted a 1758 return, confirmed when it was first seen on 25 December 1758; it has been recorded since at least 240 BC^[1][3]
In 1986 a fleet including Giotto (ESA), Vega 1 and 2, Suisei and Sakigake observed it, the first comet studied in detail by spacecraft^[1][3]
The nucleus is about 15 x 8 x 8 km (mean diameter 11 km), a dark dirty snowball; it sheds an estimated 1 to 3 metres of surface per orbit^[1][3]
Space.com's 2023 preview gives inbound crossings (Earth's orbit 19 June 2061, Venus 9 July 2061), naked-eye visibility from mid-June 2061, and the best evening view around 4-8 August 2061, brighter than in 1986^[2]

参考资料 3可信度 62%

第一项始终是图钉的来源。总体可信度是各份资料对上方所用开始和结束时间支持程度的加权平均；资料每比最新的一份旧 180 天，权重减半。

[1]25%
en.wikipedia.org/wiki/Halley%27s_Comet
en.wikipedia.org· 发布于 2026年9月11日· 开始 2061年7月28日 ✓· 占评分 33%
No wording about the date found on en.wikipedia.org; treat it as unverified.
[2]78%
Halley's Comet begins its 38-year journey back toward Earth tonight
space.com· 添加于 2026年9月14日· 占评分 34%
Space.com's own headline notes the comet 'begins its 38-year journey back toward Earth tonight,' broadly consistent with the pin's 2061 return, though the article body could not be retrieved to confirm the specific stored date.
[3]82%
1P/Halley
science.nasa.gov· 添加于 2026年9月14日· 占评分 33%
NASA's own page states Halley's Comet 'will return in 2061 on its regular 76-year journey around the Sun,' consistent with the pin's stored July 2061 date, though it does not give the specific day-level date the pin uses.

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