3752 Camillo

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3752 Camillo
Synodic rotation period
37.846 h[9]
37.881±0.005 h[10]
0.210±0.036[5][6]
0.22[4]
0.2234[7]
S (assumed)[8]
15.3[3] · 15.41[8][9] · 15.41±0.13[7] · 15.5[5]

3752 Camillo is an inclined

rotation period of 38 hours.[1][4]

Orbit

The orbit of Camillo is highly inclined. Vertical lines show the distance above and below the ecliptic every 30 days.

Camillo orbits the Sun at a distance of 0.99–1.8 

semi-major axis of 1.41 AU). Its orbit has an eccentricity of 0.30 and an inclination of 56° with respect to the ecliptic.[3]

Close approaches

The closest point between the orbit of the Earth and the orbit of this asteroid (Earth

perihelion (its closest approach to the Sun) on 6 January 1976 and, on 17 February 1976 and passed within 0.08013 AU (11,987,000 km; 7,449,000 mi) of Earth.[3]

2013 passage

Camillo came to perihelion on 27 December 2012.[3] On 12 February 2013 the asteroid passed 0.14775 AU (22,103,000 km; 13,734,000 mi) from Earth[3] and had an apparent magnitude of 13.[4] During the 2013 passage the asteroid was studied by radar using Goldstone and Arecibo.[4]


Camillo's south to north daily motion in the sky as seen from the earth

2018 passage

On February 20, 2018, the asteroid passed by Earth. It was observed on radar by Arecibo Observatory and shown to have a long angular double-lobed shape.[11] At 0.13 AU (19,000,000 km; 12,000,000 mi) distance its peak magnitude was about 13.


Camillo's south to north daily motion in the sky as seen from the earth
Left: A 25 minute timelapse sequence of 3752 Camillo taken from Northolt Branch Observatories (London, UK) on 22 February 2018, two days after closest approach. The asteroid can be seen at apparent magnitude +14, moving upwards through the image. Brightness is inverted (stars appear dark, the sky background appears light). Camillo was about 21.9 million km (13.6 million mi) from Earth at that time.[12] Right: Camillo as seen from Northolt Branch Observatories on 22 February 2018. The image is corrected for the asteroid's motion, so stars appear trailed.[13]

Naming

This

M.P.C. 14633).[14]

References

  1. ^ a b c "3752 Camillo (1985 PA)". Minor Planet Center. Retrieved 10 May 2018.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g h "JPL Small-Body Database Browser: 3752 Camillo (1985 PA)" (2018-05-03 last obs.). Jet Propulsion Laboratory. Retrieved 10 May 2018.
  4. ^ a b c d e Lance A. M. Benner (15 November 2012). "3752 Camillo Goldstone Radar Observations Planning". NASA/JPL Asteroid Radar Research. Retrieved 23 November 2012.
  5. ^
    S2CID 35447010. (catalog
    )
  6. ^
    S2CID 239991
    .
  7. ^
    doi:10.1016/j.icarus.2012.07.026
    .
  8. ^ a b c "LCDB Data for (3752) Camillo". Asteroid Lightcurve Database (LCDB). Retrieved 10 May 2018.
  9. ^
    doi:10.1006/icar.1998.5993
    .
  10. S2CID 119112278
    .
  11. ^ "Radar images of 3752 Camillo". Arecibo Observatory (on Twitter). 21 February 2018.
  12. ^ Wells, G.; Bamberger, D. (22 February 2018). "3752 Camillo". Northolt Branch Observatories. Retrieved 10 May 2018.
  13. ^ Wells, G.; Bamberger, D. (22 February 2018). "Near Earth asteroids 2017 VR12, 3752 Camillo, 2018 CU1 and 2018 DA". Northolt Branch Observatories. Retrieved 10 May 2018.
  14. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 10 May 2018.

External links

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