Results 301 to 310 of about 219,960 (319)

Climate Change Challenge Faced by Italian Children: A Nationwide Study. [PDF]

open access: yesHealthcare (Basel)
Provenzi L   +5 more
europepmc   +1 more source

Why is a minor planet minor?

Nature, 1977
A hypothesis based on the accretion model of planet formation is proposed which can explain why minor planets could not grow into full-sized planets. Temperature and impact-velocity conditions for bouncing, accumulation, and fragmentation of planetesimals are evaluated for silicate and iron planetesimals at the heliocentric distances of Mercury, Venus,
Hitoshi Mizutani, Takafumi Matsui
openaire   +2 more sources

Minor Planets: The Discovery of Minor Satellites

Science, 1979
The recent confirmation of the discovery of a satellite of the minor planet 532 Herculina indicates that other similar anomalous sightings are probably also due to satellites, which must therefore be numerous and commonplace. There are now 23 candidate satellites for eight minor planets, and no one of these minor planets occulting a star has failed to ...
T. C. Van Flandern, R. P. Binzel
openaire   +3 more sources

Photographic positions of Minor Planets

Astronomische Nachrichten, 1992
AbstractPhotographic precise positions of 13 minor planets obtained with the G.P.O. astrograph at E.S.O. (La Silla, Chile) in September 1987 are given.
H. Debehogne   +2 more
openaire   +2 more sources

Minor Planet Center

2014
A brief overview is presented of the current and historical processing of observations and orbits by the Minor Planet Center (MPC). The MPC is delegated by the International Astronomical Union with organizing the cataloging of minor bodies in the solar system. G.V. Williams (*) • T.B.
Timothy B. Spahr, G. V. Williams
openaire   +2 more sources

BINARY MINOR PLANETS

Annual Review of Earth and Planetary Sciences, 2006
A review of observations and theories regarding binary asteroids and binary trans-Neptunian objects [collectively, binary minor planets (BMPs)] is presented. To date, these objects have been discovered using a combination of direct imaging, lightcurve analysis, and radar.
Derek C. Richardson, Kevin J. Walsh
openaire   +2 more sources

Observations of Minor Planets

Astronomische Nachrichten, 1982
AbstractWe represent 266 positions of 77 minor planets determined from plates taken in 1972 and in 1979–1980 with the Schmidt telescope 1340/2000/4000 of KARL SCHWARZSCHILD Observatory Tautenburg.
F. Börngen   +2 more
openaire   +2 more sources

THE MINOR PLANETS

2010
I n our chapters on the Sun and Moon, on the Earth and Venus, and on Mercury and Mars, we have been usually discussing the features and the movements of globes of vast dimensions. The least of all these bodies is the moon, but even our moon is a ball 2,000 miles from one side to the other.
openaire   +2 more sources

Distant Minor Planets

2016
The Distant Minor Planets include the cis-Neptunian objects, and the trans-Neptunian objects (TNOs). The TNOs include Kuiper Belt Objects (KBOs), Scattered Disc Objects (SDOs), Detached Objects, and Oort Cloud Objects (OCOs).
openaire   +2 more sources

Photographic observations of Minor Planets

Astronomische Nachrichten, 1928
H. van Gent, C. Jackson, H. E. Wood
openaire   +2 more sources

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