Browsing by Author "Jacobs, C."
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Item Improved SAAO–2MASS photometry transformations(Oxford University Press, 2007) Koen, Chris; Marang, F.; Kilkenny, David; Jacobs, C.Near-infrared photometry of 599 stars is used to calculate transformations from the South African Astronomical Observatory (SAAO) JHK system to the Two-Micron All-Sky Survey (2MASS) JHKS system. Both several-term formal regression relations and simplified transformations are presented. Inverse transformations (i.e. 2MASS to SAAO) are also given. The presence of non-linearities in some colour terms is highlighted.