From the Sun to supernovae: experimental determinations of stellar reaction rates at TRIUMF, J. Fallis, TRIUMF, Canada − The ongoing goal of the TRIUMF astrophysics group is to measure resonance strengths and cross sections for reactions of astrophysical importance.  This is done using accelerated radioactive and stable beams from ISAC I and II delivered to the DRAGON and TUDA facilities.  Experiments in recent years range from: ³He(α,γ)⁷Be to study big bang nucleosynthesis and the production of solar neutrinos; to ¹⁷O(α,γ)²¹Ne which affects the strength of a neutron poison reaction in the s-process in red giant stars; to ¹⁸F(p,γ)¹⁹Ne to study the resulting ¹⁸F abundance in novae which can then be detected from the 511 keV γ-rays given off in its decay; to a recent ⁷⁶Se(α,γ)⁸⁰Kr experiment which will provide the first measurement of this rate needed to calculate the inverse reaction, which is a branching point of the p-process in supernovae.  The results of these experiments and others will be discussed along with the various techniques required for these measurements.