Polarimetry and photometry of the peculiar main-belt object 7968 = 133P/Elst-Pizarro

S. Bagnulo; G. P. Tozzi; H. Boehnhardt; J.-B. Vincent; K. Muinonen

doi:10.1051/0004-6361/200913339

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Volume 514 (May 2010)

A&A, 514 (2010) A99

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Table 1:

Geometric information about the dust tails of 133P/Elst-Pizarro.
	Phase		Tail 1		Tail 2
Date	Angle	PA $_{\odot}$ ⁽¹⁾	PA⁽²⁾	projected length⁽³⁾	PA⁽²⁾	projected length⁽³⁾
yyyy mm dd	( $^\circ$ )	( $^\circ$ )	( $^\circ$ )	(10⁽³⁾ km)	( $^\circ$ )	(10⁽³⁾ km)
2007 05 22	19.7	256.2	257	-	-	-
2007 07 13	3.4	248.1	255	18	-	-
2007 07 17	1.7	237.7	256	17	-	-
2007 08 01	5.0	85.7	257	12	-	-
2007 08 05	6.7	84.2	260	12	81	3
2007 08 09	8.2	83.4	258	12	82	4
2007 08 30	15.3	81.9	262	7	82	6
2007 09 19	19.6	81.0	261	4	81	10
2007 09 24	20.3	80.7	261	-	81	10

Notes. ⁽¹⁾ Position angle of the antisolar vector. ⁽²⁾ Position angle of the tail. ⁽³⁾ Approximate tail extension obtained using the contour level $Af = 7 \times 10^{-9}$ of Fig. 1, averaged in the R and V filters.

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