1024 Hale

1024 Hale
Discovery[1]
Discovered byG. van Biesbroeck
Discovery siteYerkes Obs.
Discovery date2 December 1923
Designations
(1024) Hale
Named after
George Ellery Hale[2]
(American astronomer)
A923 YO13
main-belt[1][3] · (outer)[4]
background[5]
Orbital characteristics[3]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc89.22 yr (32,587 d)
Aphelion3.5095 AU
Perihelion2.2230 AU
2.8663 AU
Eccentricity0.2244
4.85 yr (1,772 d)
173.74°
0° 12m 11.16s / day
Inclination16.090°
58.856°
307.94°
Physical characteristics
28.46±6.70 km[6]
41.28 km (derived)[4]
43.274±0.148 km[7]
45.964±17.12 km[8]
47.33±8.98 km[9]
47.674±0.893 km[10]
48.18±0.78 km[11]
51.37±15.55 km[12]
16.0±0.1 h[13]
0.0260±0.0240[8]
0.027±0.047[12]
0.0289±0.0057[10]
0.03±0.02[9]
0.044±0.002[11]
0.045±0.007[7]
0.0496 (derived)[4]
0.10±0.04[6]
SMASS = Ch[3] · C[14]
C (SDSS-MFB)[4]
10.60[11] · 10.70[3][9]
10.78[8][14] · 10.8[4][10]
10.83[6] · 11.00[12]

1024 Hale, provisional designation A923 YO13, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 45 kilometers (28 miles) in diameter. The asteroid was discovered on 2 December 1923, by Belgian–American astronomer George Van Biesbroeck at the Yerkes Observatory in Wisconsin, United States.[1] It was named for American astronomer George Ellery Hale.[2] The dark C-type asteroid may have a rotation period of 16 hours.[4]

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  6. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Masiero-2017 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  12. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Alkema-2013b was invoked but never defined (see the help page).
  14. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).