Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Eleanor F. Helin"'
Autor:
Samir Salim, Gu. Sánchez, J. Stock, B. E. Schaefer, Augustus Oemler, Nancy Ellman, S. Pravdo, B. Vicente, C. Abad, Eleanor F. Helin, Darren L. DePoy, C. Secco, G. Magris, A. Katherina Vivas, H. Honeycutt, W. Emmet, D. Rabinowitz, P. Andrews, J. Mateu, Ignacio Ferrin, Sabatino Sofia, Ming Deng, Gianfranco Spavieri, S. L. Mufson, C. Baltay, A. Rengstorf, A. Bongiovanni, F. Fuenmayor, C. Bailyn, Cesar Briceno, F. Della Prugna, Jesús Hernández, P. Rosenzweig, J. Musser, M. Gebhard, Gustavo Bruzual, David Herrera, C. N. Sabbey, H. Schenner, R. Pacheco, K. Vieira, W. F. van Altena, O. Naranjo, J. A. Snyder, Kenneth J. Lawrence, Jae Il Shin, Ge. Sánchez, Paolo De Coppi
Publikováno v:
The Astrophysical Journal. 548:L243-L247
We describe the discovery circumstances and photometric properties of 2000 EB173, now one of the brightest trans-Neptunian objects (TNOs) with opposition magnitude m_R=18.9 and also one of the largest Plutinos, found with the drift-scanning camera of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e784e3b23e83bd525dde3d9ae5200f8
https://doi.org/10.1086/319109
https://doi.org/10.1086/319109
Publikováno v:
Icarus. 128:114-126
We have analyzed the only two known images taken of Comet 107P = Asteroid (4015) Wilson–Harrington while it was a distinctly cometary object. The images reside on two Palomar Observatory Sky Survey (POSS) photographic plates taken on 19 November 19
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54ce776ab4dc695c139ce34b1b28f4bc
https://doi.org/10.1006/icar.1997.5728
https://doi.org/10.1006/icar.1997.5728
Publikováno v:
Annals of the New York Academy of Sciences. 822:6-25
The discoveries of near-Earth asteroids (NEA's) and comets have increased enormously over the last 10-20 years. This is a consequence in large par; of the success of programs that have systematically searched for these objects. These programs have be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6cd516944bc24c89eaaf556604300a2
https://doi.org/10.1111/j.1749-6632.1997.tb48329.x
https://doi.org/10.1111/j.1749-6632.1997.tb48329.x
Autor:
John L. Africano, Eugene Stansbery, Kris Hamada, Paul Kervin, Vicki Soo Hoo, Kenneth J. Lawrence, Eleanor F. Helin, Paul F. Sydney, S. Pravdo, Daron L. Nishimoto
Publikováno v:
Multifrequency Electronic/Photonic Devices and Systems for Dual-Use Applications.
The AMOS 1.2-m telescope is being used 18 nights per month to search for Near-Earth Asteroids (NEA). Since telescope time is a very valuable resource, our goal is to use the telescope as efficiently as possible. This includes striving to maximize the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9547cf249f5a153b67471a32bef94e70
https://doi.org/10.1117/12.455425
https://doi.org/10.1117/12.455425
Autor:
David L. Rabinowitz, Yuling Hsu, Paul Kervin, Eleanor F. Helin, Kenneth J. Lawrence, S. Pravdo, Riki Maeda, Bruce A. Cameron, Steve Ray Walton, David L. Talent, Paul F. Sydney
Publikováno v:
SPIE Proceedings.
The NASA/JPL Near Earth Asteroid Tracking (NEAT) Program was in operation using the Maui GEODSS as its observing platform for about three years starting in late 1995 and continuing into 1998. In October of 1998 the NASA/AFSPC Near Earth Object Workin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae06a4dad88fd435e48dc6efd2d6f141
https://doi.org/10.1117/12.405779
https://doi.org/10.1117/12.405779
Publikováno v:
Nature. 403:165-166
Near-Earth asteroids are small (diameters10 km), rocky bodies with orbits that approach that of the Earth (they come within 1.3 AU of the Sun). Most have a chance of approximately 0.5% of colliding with the Earth in the next million years. The total
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cd97e2a2536d157fe05b2f91cde5e8e
https://doi.org/10.1038/35003128
https://doi.org/10.1038/35003128
Publikováno v:
Icarus. 57:42-47
A small Apollo object was found while photographing the split comet DuToit 2-Hartley on February 27/28, 1982. Designated 1982 DB, this earth-crossing asteroid passed the earth at a distance of 4.08 million km about 1 month prior to its discovery. Ast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00113996337590564bde06aa4e2ececa
https://doi.org/10.1016/0019-1035(84)90005-8
https://doi.org/10.1016/0019-1035(84)90005-8
Autor:
Eugene M. Shoemaker, Eleanor F. Helin
Publikováno v:
Icarus. 31:415-419
Asteroid 1976 AA was discovered as a result of a continuing systematic search for planet-crossing asteroids. It is the first asteroid to be thoroughly investigated by means of photometry and radiometry on its discovery apparition. It is also the firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2000bf71c0320e58576af87cbf852b3
https://doi.org/10.1016/0019-1035(77)90142-7
https://doi.org/10.1016/0019-1035(77)90142-7
Autor:
Eugene M. Shoemaker, Eleanor F. Helin
Publikováno v:
Icarus. 40:321-328
Photographic coverage of about 80,000 deg^2 of sky with the Palomar 46-cm Schmidt camera has yielded 12 new planet-crossing asteroids as well as many objects in the main asteroid belt. The estimated population of planet-crossing asteroids includes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6370ad86b05cff2ca025438336c2284
https://doi.org/10.1016/0019-1035(79)90021-6
https://doi.org/10.1016/0019-1035(79)90021-6
Autor:
Eleanor F. Helin, R. S. Dunbar
Publikováno v:
Icarus. 60:404-408
Asteroid 1984 AB, discovered in January 1984, proved to be a unique object with a close dynamical relationship to Mars. A brief history of the discovery and subsequent 'evolution' of the orbit as it was refined is presented. The preliminary orbit of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::091aee67201136704c8bbd8870f1ecb8
https://doi.org/10.1016/0019-1035(84)90199-4
https://doi.org/10.1016/0019-1035(84)90199-4