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  2. 2012 LZ1 - Wikipedia

    en.wikipedia.org/wiki/2012_LZ1

    2012 LZ 1 is an asteroid classified as near-Earth object and potentially hazardous asteroid of the Amor group, approximately 1 km (0.62 mi) in diameter. [4] It passed within 5.4 million kilometers (14 lunar distances ) of Earth on 14 June 2012. [ 4 ]

  3. 2012 TC4 - Wikipedia

    en.wikipedia.org/wiki/2012_TC4

    The Earth approach of 2017 increased the asteroid's orbital period from 1.67 years to 2.06 years. [24] 2012 TC 4 reached a maximum apparent magnitude of 12.9 just prior to its closest approach, soon after which it came too close to the Sun to be seen with telescopes. [23] It was last observed on 14 December 2017 at an apparent magnitude of 25, [4]

  4. 2012 KP24 - Wikipedia

    en.wikipedia.org/wiki/2012_KP24

    2012 KP 24 (also written 2012 KP24) is a Chelyabinsk-sized near-Earth asteroid with an observation arc of only 5 days and has a modestly determined orbit for an object of its size. [2] Around 31 May 2023 ±3 days it will pass between 0.19–24 lunar distances (73,000–9,200,000 km ) from Earth. [ 2 ]

  5. List of asteroid close approaches to Earth in 2012 - Wikipedia

    en.wikipedia.org/wiki/List_of_asteroid_close...

    A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2012. [note 1] Rows highlighted red indicate objects which were not discovered until after closest approach

  6. Asteroid 2012 TC4 is going to fly by Earth on October 12 ...

    www.aol.com/article/news/2017/10/06/asteroid...

    An asteroid that’s somewhere between 30 and 100 feet long is hurtling through space in the direction of Earth at 30,000 miles per hour. Asteroid 2012 TC4 is going to fly by Earth on October 12 ...

  7. 2012 BX34 - Wikipedia

    en.wikipedia.org/wiki/2012_BX34

    By 25 February 2012, it had dimmed to magnitude 30. [1] During its close approach of 0.0246 AU (3,680,000 km; 2,290,000 mi) on 28 January 2014, [6] it will only reach a magnitude of about 23. [8] 2012 BX 34 has been observed in more detail using radar astronomy. [9] Animation of 2012 BX34's orbit around Sun 2012 BX34 · Sun · Earth

  8. Timeline of Solar System astronomy - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Solar_System...

    The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.2422-day 'tropical' or 'solar' year that is determined by the Earth's revolution around the Sun. The reform advanced the date by 10 days: Thursday 4 October 1582 was followed by Friday 15 ...

  9. 2012 UE34 - Wikipedia

    en.wikipedia.org/wiki/2012_UE34

    2012 UE 34 is an Apollo asteroid, which are Earth-crossers and the largest subgroup in the near-Earth object population. It orbits the Sun at a distance of 0.996–1.22 AU once every 14 months (424 days; semi-major axis of 1.11 AU). Its orbit has an eccentricity of 0.10 and an inclination of 10° with respect to the ecliptic. [2]