Sentence examples for distance determinations from inspiring English sources

The best distance determinations are from spectroscopic parallaxes of individual stars i.e., estimates of their absolute magnitudes made from studies of their spectra.

In the absence of any other method, the Hubble law continues to be used for distance determinations to the farthest objects that is, galaxies and quasars for which redshifts can be measured.

For other globular clusters he made distance determinations, using a relationship that he discovered between the brightnesses of the RR Lyrae stars and the brightness of the brightest red stars.

Integrated magnitudes (measurements of the total brightness of the cluster), cluster diameters, and the mean magnitude of the 25 brightest stars made possible the first distance determinations on the basis of the assumption that the apparent differences were due entirely to distance.

Activation distance determinations of pre-rolled structure during micro-strain correlate with the Burgers vectors of stair-rod dislocations, indicating that the controlling mechanism is the dragging of jogs.

The distance determinations aid the understanding of volcanic fatalities but there are many other factors that should be considered and should be a focus of future work and database improvements.

Used with galactic-rotation formulas, the radial velocities provide another means of distance determination.

(For additional discussion of the recession of galaxies, the Hubble law, and galactic distance determination, see physical science: Astronomy).

One of the basic problems of using moving groups for distance determination is the selection of members.

From the best available distance determination, the true size of any nebula can be found from its angular size.

The Cα atoms of residues used for distance determination are highlighted by spheres.