4450 Pan

For the moon of Saturn, see Pan (moon). For other uses, see Pan (disambiguation).

4450 Pan
Discovery [1]
Discovered byC. S. Shoemaker
E. M. Shoemaker
Discovery sitePalomar Obs.
Discovery date25 September 1987
Designations
(4450) Pan
Pronunciation/ˈpæn/[2]
Named after
Pan (Greek deity)[3]
1987 SY · 1937 CA
NEO · Apollo · PHA [1][4]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc78.85 yr (28,799 days)
Earliest precovery date6 February 1937
Aphelion2.2884 AU
Perihelion0.5962 AU
1.4423 AU
Eccentricity0.5866
1.73 yr (633 days)
152.71°
0° 34m 8.4s / day
Inclination5.5196°
311.84°
291.79°
Earth MOID0.0287 AU · 11.2 LD
Physical characteristics
1.0±0.2 km[5]
1.13 km (calculated)[6]
3.51±0.02 h[7]
56.48±0.02 h[8]
60±12 h[a]
0.20 (assumed)[6]
S [6]
17.1[1][6] · 17.43±0.07[5]

4450 Pan (prov. designation: 1987 SY) is a highly eccentric asteroid and contact binary, classified as a potentially hazardous asteroid and near-Earth object of the Apollo group, approximately 1.1 kilometers in diameter. It was discovered on 25 September 1987, by American astronomers Eugene and Carolyn Shoemaker at Palomar Observatory in California, United States.[4] It was named after Pan from Greek mythology.[3]

  1. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ "Pan". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference MPC-Pan was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Carbognani-2008b was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Warner-2014e was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).