CCD photometry of 23 minor planets

Astrophysics, abstract
astro-ph/0504462

From: P\’eter Sz\’ekely [view email]

Date: Thu, 21 Apr 2005 08:07:48 GMT   (108kb)

We present CCD photometric observations of 23 main-belt asteroids, of which 8
have never been observed before thus the data of these objects are the first in
the literature. The majority showed well detectable light variations, exceeding
0.1 mag. We have determined synodic periods for 756 Lilliana (9.36h), 1270
Datura (3.4h), 1400 Tirela (13.36h), 1503 Kuopio (9.98h), 3682 Welther (3.59h),
7505 Furushu (4.14h) and 11436 1969 QR (2.6h), while uncertain period estimates
were possible for 469 Argentina (12.3h), 546 Herodias (10.4h) and 1026 Ingrid
(5.3h). The shape of the lightcurves of 3682 Welther changed on a short
time-scale and showed dimmings that might be attributed to eclipses in a binary
system. For the remaining objects, only lower limits of the periods and
amplitudes were concluded.

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