solar parallax การใช้

• This may be the first known computation dealing with solar parallax.
• The eighteenth century was much occupied with the problem of solar parallax.
• The currently accepted value of solar parallax is 8 " . 794 143.
• He obtained a value for the solar parallax by observations of Mars in 1860 and 1862.
• He also achieved his aim of determining the lunar and solar parallaxes ( Mars serving as an intermediary ).
• However the resulting longitudes were 6'too great in consequence of the adopted solar parallax of 3 '.
• The various results were collated by J閞鬽e Lalande to give a figure for the solar parallax of 8.63.
• Their observations of June 3 helped them calculate the solar parallax, the distance of the Earth from the Sun.
• His work includes measuring the Solar parallax during the 2004 Transit of Venus as well as the search for Vulcanoid asteroids.
• Of his works, " The Solar Parallax and its Related Constants " ( 1891 ) is the most important.
• From a fresh discussion of the transits of Venus in 1761 and 1769 he deduced a solar parallax of 8.57 arcsecond.
• Also radar reflections, both off Venus ( 1958 ) and off asteroids, like Icarus, have been used for solar parallax determination.
• :: See Parallax # Lunar parallax and Parallax # Solar parallax .-- feed me 12 : 03, 20 October 2007 ( UTC)
• Around 1930, he participated in the Eros campaign, where observations of an asteroid 433 Eros was used to determine the value of solar parallax.
• Led by James Melville Gilliss, it arrived in Chile in 1849 to observe Mars and Venus from the southern hemisphere so as to improve solar parallax.
• The measurements of solar parallax taken during the Transit of Venus prove it but it's not that easy to convince a skeptic using that sort of proof.
• Along with improved measurements of the speed of light, these showed that Newcomb's values for the solar parallax and the constant of aberration were inconsistent with one another.
• A later 20th-century HM Astronomer, H . Spencer Jones, was active in an international project for determining the solar parallax through observations of the minor planet Eros.
• This assumption can also be expressed by saying that the stellar parallax caused by the motion of the Earth around its orbit equals the solar parallax caused by motion around the Earth.
• According to the conjectural reconstructions of Noel Swerdlow and G . J . Toomer, this was derived from his assumption of a " least perceptible " solar parallax of 7 arc minutes.