4789 Sprattia

4789 Sprattia
Discovery [1]
Discovered byD. D. Balam
Discovery siteClimenhaga Obs.
Discovery date20 October 1987
Designations
(4789) Sprattia
Named after
Christopher E. Spratt [1]
(Canadian astronomer)
1987 UU2 · 1976 HE1
main-belt [1][2] · (inner)[3]
background [4]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc41.82 yr (15,276 d)
Aphelion2.5176 AU
Perihelion1.9596 AU
2.2386 AU
Eccentricity0.1246
3.35 yr (1,223 d)
45.388°
0° 17m 39.48s / day
Inclination1.2760°
209.73°
152.92°
Physical characteristics
3.54±0.42 km[5]
4.172±0.232 km[6][7]
4.22 km (calculated)[3]
3.136±0.0005 h[8]
0.20 (assumed)[3]
0.279±0.070[6][7]
0.44±0.13[5]
S (Pan-STARRS)[3][9]
S (SDSS-MOC)[10]
13.789±0.002 (R)[8]
13.80[5]
13.9[2][7]
14.24[3]
14.24±0.22[9]

4789 Sprattia, provisional designation 1987 UU2, is a stony background asteroid from the inner regions of the asteroid belt, approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 20 October 1987, by Canadian astronomer David Balam at the Climenhaga Observatory (657) in Victoria, Canada. The S-type asteroid has a rotation period of 3.1 hours and was named after Canadian amateur astronomer Christopher E. Spratt.[1][3]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ a b c d e f Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference SDSS-Taxonomy was invoked but never defined (see the help page).