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New paper on rho Cas and its recent outburst in 2013

A new outburst of the yellow hypergiant star Rho Cas Michaela Kraus, Indrek Kolka, Anna Aret, Dieter H. Nickeler, Grigoris Maravelias, Tõnis Eenmäe, Alex Lobel, Valentina G. Klochkova Yellow hypergiants are evolved massive stars that were suggested to be in post-red supergiant stage. Post-red supergiants that evolve back to the blue, hot side of the […]

Catching a supernova just before it happens

Victor Buso is a really very lucky man! On September 20, 2016 we wanted to test his new camera mounted on a 40-cm Newtonian telescope. He pointed to the spiral galaxy NGC 613 because it was at that time located near the zenith. He took a series of 20s exposures spanning approximately an hour and […]

New Paper on Professional-Amateur collaborations: Jupiter and Saturn

The need for Professional-Amateur collaborations in studies of Jupiter and Saturn Emmanuel Kardasis, John H. Rogers, Glenn Orton, Marc Delcroix, Apostolos Christou, Mike Foulkes, Padma Yanamandra-Fisher, Michel Jacquesson, Grigoris Maravelias The observation of gaseous giant planets is of high scientific interest. Although they have been the targets of several spacecraft missions, there still remains a […]

4th Panhellenic Meeting of Amateur Astronomers in Parnonas

The 4th Panhellenic Meeting of Amateur Astronomers took place in a magnificent area, at the mountain refugee of the Mountaineering Club of Sparta at Mt. Parnonas. The place is located at ~1400m with a huge field working as the best place to park cars and set up all the necessary equipment. Moreover, the area around […]