Another image taken from the Northern Hemisphere has been uploaded. This time, an emission nebula, the Pacman Nebula. This nebula has many peculiarities and I specially like the pillars (neatly pointed to their originators, the massive and hot O and B stars in the cluster nearby) and the many Bok globules.
An image of a barred spiral galaxy has been uploaded. This galaxy is peculiar in that it harbors a supermassive central black hole with about 73 million solar masses, but its nucleus is not at all active, because it is not accreting matter.You will find it at:
Today’s image can be considered a “divertimento”. We all get to “guess” shapes in the clouds that we see in the sky. We also do this with the nebulae that we see in the night sky, and we have many examples of this (the Eagle, Pelican, Seagull, Rosette and many others). In many cultures, the gift of a rose is a token of love/respect/appreciation. As usual, this opens many question marks. This is exactly what seems to happen in this image that I came to call “The Rose and the Question Marks”.
As a complement to the previous post regarding Messier 65, also M66 has been uploaded. This galaxy shows more distortion than M65, due to a gravitational encounter with NGC 3628. This fact has heavily affected both galaxies.
A new image, this time a well known galaxy, M65, has been uploaded. M65 is usually considered to be a dull galaxy, without much structure, but it is a fine spiral with a rare peculiarity in the spectrum of radio waves: its strongest signal does not come from the galaxy’s nucleus but off center. The reason for this is unknown yet.
A new image has been uploaded. This time, it is something different: an image of the Trapezium area taken with a 60-inch Ritchey-Chrétien f/8 atop Palomar Observatory (focal length 12 meters…). The image covers 10×10 arcmin and the data are very good. You will find it at:
A new image has been uploaded. This time it has something new. One of the reflection nebulae in the image had a very apparent red bubble-like nebula inside it, but it was (so far) unknown. The discovery has been reported and published as a Research Note. The image and its explanation can be found at: