Tonight I again visited the Tacande Observatory in El Paso on La Palma. One interesting object on the list for tonight was Comet 41P/Tuttle-Giacobini-Kresak. 41P is a periodic comet in the solar system. It’s nucleus diameter is estimated to be about 1.4 km wide. It has already been discovered in 1858 by Horace Parnell Tuttle, an American astronomer. Meanwhile the object is known very well by NASA as well.