We didn't stop until the plane was out of sight, at almost 3 00 a.m.
But shortly before he was to board the plane, he dropped out of sight.
In the famous, much-parodied Nightmare at 20,000 Feet, a salesman, played by William Shatner, recovering from a nervous breakdown, sees in flight a creature "of a wide-pored coarseness" on the wing of the plane, which moves out of sight whenever other passengers glance its way.
In a few words, radio telescope arrays synthesize the aperture of a unique telescope whose size would be the maximum projected distance between two telescopes of the array on the plane perpendicular to line of sight.
Jha et al. [19] proposed a similar to the present paper 3-D methodology for measuring sight distance along a roadway's centerline, utilizing triangulation methods via a specific algorithm introduced for this purpose, consisting of three stages, namely road surface development, virtual field of view surface development, and virtual line of sight plane development.
(overrightarrow {{L_{text{V}} }}) is a unit vector from the focal point, O, to the center of Venus, C. The center of the elliptical Venusian limb is D. The line of the major axis is assumed to pass through Q which is the point of intersection of the CCD plane and the line of sight.
However, the inclination of the orbital plane to the line of sight from the Earth remains uncertain, with predictions ranging from 27 65°.
From the point of view of the Earth, Algol A and Algol B form an eclipsing binary because their orbital plane contains the line of sight to the Earth.
For exoplanets the inclination is usually stated with respect to an observer on Earth: the angle used is that between the normal to the planet's orbital plane and the line of sight from Earth to the star.
