Results 21 to 30 of about 13,022 (190)

The Apollo Group Asteroid 2008 OS9: Discovery, Orbit, Rotation and the Yarkovsky/YORP Effects

Open Astronomy, 2010
A project for astrometric and photometric observations of asteroids at the Baldone Observatory is described. One of the most important results of the project is the discovery of 2008 OS9, a 600 meter asteroid of the NEO Apollo group.
Černis K., Eglitis I., Wlodarczyk I., Zdanavičius J., Zdanavičius K.   +4 more
doaj   +1 more source

Photometry and shape modeling of Mars crosser asteroid (1011) Laodamia [PDF]

Serbian Astronomical Journal, 2014
An analysis of photometric observations of Mars crosser asteroid 1011 Laodamia conducted at Bulgarian National Astronomical Observatory Rozhen over a twelve year interval (2002, 2003, 2004, 2006, 2007, 2008, 2011, 2012 and 2013) is made.
Apostolovska G., Donchev Z., Kostov A., Ivanova V., Borisov G., Bilkina B.   +5 more
doaj   +1 more source

The Alinement of Asteroid Rotation [PDF]

International Astronomical Union Colloquium, 1971
Data have been accumulating since the beginning of this century that indicate that most, if not all, large asteroids have periodic lightcurves. The variations that are seen have periods of the order of several hours and can be understood as being caused by bodily rotation, accompanied by changes in shape and/or surface properties. Because corresponding
openaire   +1 more source

Parking a Spacecraft near an Asteroid Pair [PDF]

, 2005
This paper studies the dynamics of a spacecraft moving in the field of a binary asteroid. The asteroid pair is modeled as a rigid body and a sphere moving in a plane, while the spacecraft moves in space under the influence of the gravitational field of
Gabern, Frederic, Koon, Wang S., Marsden, Jerrold E.   +2 more
core   +3 more sources

On the Particular Dynamics of Rubble-Pile Asteroid Rotation Following Projectile Impact on the Surface During Planetary Approach

Mathematics
The main motivation of this research is the semi-analytical exploration of the dynamics of an asteroid that is attacked while approaching a planet (with an inelastic collision of the projectile normally to the surface of the asteroid occurring just ...
Sergey Ershkov
doaj   +1 more source

The dynamics of asteroid rotation, governed by YORP effect: the kinematic ansatz

, 2018
The main motivation of this research is the analytical exploration of the dynamics of asteroid rotation when it moves in elliptic orbit through Space.
Ershkov, Sergey V., Shamin, Roman V.
core   +1 more source

A 2km-size asteroid challenging the rubble-pile spin barrier – A case for cohesion [PDF]

, 2018
The rubble pile spin barrier is an upper limit on the rotation rate of asteroids larger than ~200-300. m. Among thousands of asteroids with diameters larger than ~300. m, only a handful of asteroids are known to rotate faster than 2.0.
Aharonson, O., Binzel, Richard P, Burt, Brian, DeMeo, Francesca E, Hinkle, M.L., Lockhart, M., Mommert, M., Moskovitz, N., Person, Michael J, Polishook, D., Thirouin, A., Thomas, C.A., Trilling, D., Willman, M.   +13 more
core   +1 more source

INVESTIGATION OF NEO ASTEROIDS 2006 VB14 AND 1986 DA

Odessa Astronomical Publications, 2019
566 positions and photometric observa- tions of NEO objects 2006 VB14 = Y5705 = 345705 and 1986 DA were obtained with Baldone Schmidt telescope in 2018 and 2019, to detecting rotation period and other physical characteristics.
I. Eglitis
doaj   +1 more source

Analysis of the rotation period of asteroids (1865) Cerberus, (2100) Ra-Shalom, and (3103) Eger - search for the YORP effect

, 2012
The spin state of small asteroids can change on a long timescale by the Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect, the net torque that arises from anisotropically scattered sunlight and proper thermal radiation from an irregularly-shaped ...
Baransky, A. R., Breiter, S., Burkhonov, O. A., Cooney, W., Durech, J., Fuller, V., Gaftonyuk, N. M., Gross, J., Inasaridze, R. Ya., Kaasalainen, M., Krugly, Yu. N., Kvaratshelia, O. I., Litvinenko, E. A., Macomber, B., Marchis, F., Molotov, I. E., Oey, J., Polishook, D., Pollock, J., Pravec, P., Sarneczky, K., Shevchenko, V. G., Slyusarev, I., Stephens, R., Szabo, Gy., Terrell, D., Vachier, F., Vanderplate, Z., Viikinkoski, M., Vokrouhlicky, D., Warner, B. D.   +30 more
core   +3 more sources

Thermal Infrared Imaging Experiments of C-Type Asteroid 162173 Ryugu on Hayabusa2 [PDF]

, 2016
The thermal infrared imager TIR onboard Hayabusa2 has been developed to investigate thermo-physical properties of C-type, near-Earth asteroid 162173 Ryugu.
A. Fujiwara, Axel Hagermann, D.A. Paige, F. Vilas, G.J. Consolmagno, H. Hiesinger, H. Hihara, H. Yano, H.H. Kieffer, H.H. Kieffer, Hirohide Demura, Hiroki Senshu, J. Biele, J. Helbert, J. Veverka, Jun Takita, Jörn Helbert, Ken Endo, Kohei Kitazato, M. Delbo, M. Grott, M. Ishiguro, M.P. Golombek, Makoto Taguchi, Naoya Sakatani, O. Groussin, P. Michel, P.R. Christensen, P.R. Christensen, Ryosuke Nakamura, S. Tachibana, S.C. Chase, Satoshi Tanaka, Sunao Hasegawa, T. Fukuhara, T. Okada, T. Okada, T. Spohn, T.-M. Ho, T.G. Müller, Takehiko Arai, Takehiko Wada, Takeshi Imamura, Tatsuaki Okada, Tetsuya Fukuhara, Thomas G. Müller, Tomohiko Sekiguchi, Toru Kouyama, Tsuneo Matsunaga, W.F. Bottke Jr., Y. Tsuda, Yamato Horikawa, Yoshiko Ogawa   +52 more
core   +2 more sources