An Etymological Dictionary of Astronomy and Astrophysics
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A telescope developed to perform photometric observations automatically.

→ automatic; → photometric; → telescope.

Pertaining to or related to → photometry.

→ photometer + → -ic.

The range of → wavelengths allowed by a → filter used in a → photometric system.

→ photometric + → band.

A binary star whose binarity is detectable from its variability and light-curve that has certain specific characteristics.

→ photometric + → binary.

A calibration which converts the measured relative magnitudes into an absolute photometry.

→ photometric + → calibration.

A method of deriving the distance of a star using its → apparent magnitude and the → absolute magnitude inferred from its → spectral type.

This is a misnomer, because the method has nothing to do with parallax; → photometric; → parallax.

A system of → magnitudes, each of them characterized by a set of well-defined → passbands (or → filters) with known → response curves. The system is defined by the values given for the → standard stars. See also:
→ AB magnitude system, → five-color system, → Stromgren system, → JHK system, → UBV system, → uvby system.

→ photometric; → system.

Of or relating to → spectrophotometry.

→ spectrum; → photometry.