Photometry Sentence Examples

This subject is treated in the article Photometry, Celestial.

He was elected a fellow of the Royal Society in 1840, and in 1892 was awarded one of the royal medals for his work on photometry and stellar parallax.

In 1882 Pritchard commenced a systematic study of stellar photometry.

He found the light of the sun to be 300 times more intense than that of the moon, and thus made some of the earliest measurements in photometry.

It has thus come about that astrophysics owes its recent development, and its recognition as a distinct branch of astronomical science, to the combination of the processes involved in the three arts of spectroscopy, photography and photometry.

In both modes the user may perform photometry using either the traditional aperture method or using optimal extraction.

The source counts and their errors were calculated using circular aperture photometry centered at the listed source position.

What manuals are available for helping me do photometry?

The photometry in Pix_M9 is simple ' relative photometry ' and will not automatically give you the magnitude of a star.

Some entries are from photoelectric aperture photometry or from CCD photometry with the Whipple Observatory 24 inch.

They treated the raw model colors in the same manner as raw stellar photometry.

For instance, you might wish to change the aperture diameter for the aperture photometry.

Hence we also determine the composition of these bodies through multi-colour photometry, to assist theoretical models in disentangling the possibles sources of NEOs.

Much of the imaging photometry is expected to be complete by the end of 2006.

In 1877 he decided to devote one of the telescopes of the observatory to stellar photometry, and after an exhaustive trial of various forms of photometers, he devised the meridian photometer (see Photometry, Stellar), which seemed to be free from most of the sources of error.

High accuracy filter radiometers are used in thermal and optical metrology, for temperature measurements, photometry, and derivation of spectral emission.

He wrote numerous papers on photometry and spectrum analysis in Poggendorff's Annalen and Berichte der k.

The embarrassing subject of photographic photometry has also been attacked by Prof essorPickering.

By adapting to this instrument various ingenious devices he was enabled to employ it in a great variety of investigations, connected especially with photometry, hygroscopy and the temperature of space.