Astronomy:726 Joëlla

From HandWiki
726 Joëlla
Discovery
Discovered byJoel Hastings Metcalf
Discovery siteWinchester, Massachusetts
Discovery date22 November 1911
Designations
(726) Joëlla
Pronunciation/ˈɛlə/
1911 NM
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc84.76 yr (30958 d)
|{{{apsis}}}|helion}}3.2978 astronomical unit|AU (493.34 Gm)
|{{{apsis}}}|helion}}1.8387 AU (275.07 Gm)
2.5683 AU (384.21 Gm)
Eccentricity0.28407
Orbital period4.12 yr (1503.4 d)
Mean anomaly203.587°
Mean motion0° 14m 22.092s / day
Inclination15.414°
Longitude of ascending node242.040°
112.979°
Physical characteristics
Mean radius22.01±1.75 km
Rotation period13.04 h (0.543 d)
Geometric albedo0.0539±0.010
Absolute magnitude (H)10.57


726 Joëlla is a minor planet orbiting the Sun. It was discovered on November 22, 1911, by Joel Hastings Metcalf, in Winchester, Massachusetts, in the United States .

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