Calibration and Standards

Calibration and Standards

Astronomical Utilities

Utilities for finding nearby stars and target rise and set times; temperatures and colours of normal stars; conversions between magnitudes and flux; Mauna Kea atmospheric extinction, transmission, and sky brightness values measured at UKIRT.

Spectroscopic Calibration

Linelists and spectroscopic standards.

Photometric Calibration

Standard star lists and magnitudes; photometric systems, camera zeropoints and observed extinction; a guide to GAIA aperture photometry.

Polarimetry Standards

Polarised and unpolarised standard stars.