M45 – Pleiades at Grandpre september 2012


The Pleiades or “Seven Sisters” ¬†or in Dutch: “Zevengesternte” is an open starcluster, composed of 7 hot B-type stars. The nebulosity is caused by an unrelated dust cloud in the interstellar medium where the cluster is moving through. This picture is taken at Grandpre (Northern France) at a starparty organised by Sterrenwacht Rijswijk.

A very small 65mm f/6.5 apochromatic telescope has been used, whilst the CCD sensor was cooled only at 0 degrees Centigrade due to the moist conditions.