Publications of the Astronomical Society of the Pacific, Volume 106, Issues 695-702Astronomical Society of the Pacific, 1994 |
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Page 425
... asteroids is not as clear cut as it once seemed . The possible presence of comets hidden among known asteroids forces us to reconsider the criterion by which we distinguish comets from asteroids and possibly our inventory of both comet ...
... asteroids is not as clear cut as it once seemed . The possible presence of comets hidden among known asteroids forces us to reconsider the criterion by which we distinguish comets from asteroids and possibly our inventory of both comet ...
Page 426
... asteroids from these resonances , and the gaps are commonly known as " Kirkwood gaps . " FIG . 1 - Image of asteroid 951 Gaspra taken by the Galileo spacecraft during its encounter with the asteroid in 1991. The picture was taken from a ...
... asteroids from these resonances , and the gaps are commonly known as " Kirkwood gaps . " FIG . 1 - Image of asteroid 951 Gaspra taken by the Galileo spacecraft during its encounter with the asteroid in 1991. The picture was taken from a ...
Page 427
... asteroids lies in the range q ~ 2-3 , and may depend on the composi- tional types ( Gradie et al . 1989 ) . Asteroids are made mainly of refractory material ( e.g. , olivine , silicates , organics , pyroxene , feldspars ) , although ...
... asteroids lies in the range q ~ 2-3 , and may depend on the composi- tional types ( Gradie et al . 1989 ) . Asteroids are made mainly of refractory material ( e.g. , olivine , silicates , organics , pyroxene , feldspars ) , although ...
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Common terms and phrases
absorption abundance accretion analysis asteroids Astronomical Society binary bright calibration catalog central star chromospheric clouds color comets correction derived detection detector diagram disk distribution eclipse emission errors estimate evolution expansion velocities Fe/H field flux frame function galactic galaxies GCLF giant branch globular clusters H II regions Hyades indices infrared ionized km s¹ light curve lines luminosity magnitude main sequence main-sequence mass measured MNRAS objects observations Observatory obtained open clusters optical orbital parameters PASP period phase photometric pixel planetary nebulae plotted quasars radial velocities radius range ratio red giants reddening redshift region residuals rotation sample scale scatter secondary solar sources spectral type spectroscopic spectrum standard stellar stellar winds subgiant survey Table telescope temperature tion turnoff values variability wavelength white dwarf width X-ray XX Vir