Each month the Observatori Astronòmic del Montsec (OAdM) of IEEC publishes an outstanding image from the observations made there. In May, the protagonist is a supernova in the galaxy NGC 6946.
This spiral galaxy in the constellation Cepheus can be seen almost face to us and can see them perfectly yellow color of the oldest stars in the middle, and blue of the youngest stars in the spiral arms all surrounded by numerous nebulae. The galaxy NGC 6946 is about 22 light years away. This May, it has been observed in one of his arms, the death of a massive star as a supernova (SN 2017eaw), which may be indicated in the picture. In fact, in the last 100 years there have been at least 10 supernova in this galaxy, which gives well-deserved name “Galaxy fireworks.”
The image was made with the Hubble Joan Oró the Montsec Astronomical Observatory, using various filters and broadband all of one hour of exposure.