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This list contains the slowest-rotating minor planets with periods of at least 1000 hours, or 41 2 ⁄ 3 days. See § Potentially slow rotators for minor planets with an insufficiently accurate period—that is, a LCDB quality code of less than 2.
The most unusual feature of 1997 AE 12, however, is its exceptionally slow rotation period of 1880 ± 595 hours, or approximately 11 weeks . [ a ] It holds the record for being the slowest-rotating asteroid discovered so far.
Outside the top four, the ranking of all the asteroids is uncertain, as there is a great deal of overlap among the estimates. The largest asteroids with an accurately measured mass, because they have been studied by the probe Dawn, are 1 Ceres with a mass of (939.3 ± 0.5) × 10 18 kg, and 4 Vesta at (259.076 ± 0.001) × 10 18 kg.
[8] [a] With a period of more than 100 hours, 2003 QO 104 is a slow rotator as most asteroids typically rotate every 2 to 20 hours once around their axis. The asteroid also shows several characteristics of a non-principal axis-rotation, which is commonly known as tumbling. [7] [8]
Glauke has an exceptionally slow rotation period of about 1200 hours (50 days). [4] This makes it one of the slowest-rotating asteroids in the Solar System. The rotation is believed to be "tumbling", similar to the near-Earth asteroid 4179 Toutatis. It is a common, stony S-type asteroid in both the Tholen and SMASS classification. [2]
2440 Educatio / ɛ dj uː ˈ k eɪ ʃ i oʊ / is a Florian asteroid from the inner regions of the asteroid belt, approximately 6.6 kilometers (4.1 miles) in diameter.The possibly elongated S-type asteroid has an exceptionally long rotation period of 1561 hours and is one of the slowest rotators known to exist. [5]
They highlight ASKAP J1839−0756 (AJ0) as the slowest one ever observed, rotating just once every 6.45 hours, and explain that scientists have not felt sure of the origins of these strange ...
Lightcurve analysis gave an exceptionally long rotation period of 1,069 hours with a high brightness amplitude of 1.26 in magnitude . [8] While the period still may be wrong by a few hundred hours, it is one of the slowest rotating asteroids known to exist. The exceptionally high variation in brightness indicates that the body has a non ...