December 2024
Welcome to Hank’s December 2024 Astrophotography Blog. M1, the Crab Nebula, is a remanent of a supernova explosion, that I love to image. It has interesting “spaghetti” arms that surround the nebula, and my long exposure images are starting to show those features better. The M1 supernova is believed to have been documented by Chinese astronomers on July 5, 1054. It could have very well have been bright enough to be seen during the day. This date could also correspond to what is believed to be a pictograph of this supernova explosion seen from Chaco Canyon National Park, near the four corners region in New Mexico. In 1054 the Anasazi people occupied this area and may have recorded the supernova event on a wall of their canyon home, shown in the photo below. I took a planetarium screen shot using a sky map app, Stellarium, and it shows what the sky looked like on July 5, 1054 at about 5:30 in the morning, showing that as the Sun was rising, the Moon and M1 (centered where the box is next to the Moon) were in close proximity together, and in the same positional relationship as in the pictograph. The moon was also a waning crescent on that morning, much like the pictograph. Interesting to think that after nearly a thousand years, we have evidence that people on opposite sides of the Earth witnessed the same cosmic event. At the center of M1 is a pulsar, a rotating neutron star, that…