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Astronomical Utilities





Rise and set times

Enter RA and Declination to get target availability
Source observability

Plot of source airmass versus time, for a given OMP project. [Staff only at present]


Finding nearby SAO or BS stars

Bright star finder

Temperatures and Colours of Stars

Tables of effective temperature and optical-IR colour indices

Zero mag fluxes, conversions to Jansky

Magnitudes to Janskys and W.m-2.micron-1

Atmospheric Transmission and Extinction

0.9-32um transmission plots and Extinction coefficients between U and Q

UKIRT Sky Brightness measurements

Through-night variations of JHK sky brightness; Flat field timing; Correlations between J, H and K sky brightness

Condition Requirements for UKIRT Observing

Seeing, water vapour and sky brightness constraints for queued programmes, and their MKO site statistics



Contact: Andy Adamson. Updated: Tue Feb 28 16:06:40 HST 2006

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