Sh2-162, THE BUBBLE NEBULA on 2025-08-29
Click on the image and scroll to zoom in and out. On a touch screen use 2 fingers.
Sh2-162 is also known as NGC7635, and referred to as The Bubble Nebula. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60°2522). In this photo it is the brightest star inside the bubble structure. The nebula is near a giant molecular cloud which contains the expansion of The Bubble Nebula. As the surface of the bubble’s shell expands outward, it pushes into denser and higher-pressure regions of gas on one side of the bubble. This imbalance makes the star appear dramatically off-center inside the bubble. The Bubble Nebula is about 7,100 light-years from Earth in the constellation Cassiopeia. The bubble is 7 light-years wide. The star BD+60°2522 is about 4 million years old, and in 10 to 20 million years it will likely become a supernova. This photo was taken in Kyle, Texas through a 6-inch f/4 Telescope, on a ZWO AM5 mount, with a ZWO ASI533MC PRO color camera, plus a dual-band Ha-O III filter. The processing was done in PixInsight. The total image acquisition time is: 3 hours 58 minutes 00 Seconds.
Previous, Older Photo
Sh2 162, THE BUBBLE NEBULA on 2023-08-03