SUNSET: 
0
Photographer:
Jon Greif
Location of Photo:
Alpine, CA, USA
Date/Time of photo:
June 27-28, 2024, between 9 pm and 5 am PDT
Equipment:
Takahashi Mewlon 210 SCT, Pegasus Astro NYX-101 mount, ZWO ASI2600MM Pro camera with LRGB filters, NINA capture software and Pixinsight processing software.
Description:
This is M27, the Dumbbell Nebula (also known as the Apple Core Nebula), a planetary nebula (nebulosity gases surrounding a collapsed white dwarf star) in the constellation Vulpecula, at a distance of about 1360 light-years. It was discovered by Charles Messier in 1764. In 1970, Bohuski, Smith, and Weedman found that M27 has an expansion velocity of 31 km/s, and calculated that the age of the nebula was about 9,800 years.
