NGC 7635 or the Bubble nebula -it was discovered by William Herschel in 1787 and is about 7.100 light-years from Earth in the constellation Cassiopea .The Bubble nebula is 7 light-years across and the seething star forming this nebula is 45 times mor massive than our sun .Gas on de star gets so hot that it escapes away into space as a stellar wind moving at over  6.437.376 km per hour .

Equipment ;

 telescope-RC 6 inches Astrotech  

mount -Skywatcher HEQ 5 Pro giuded

camera-Atik 314L+ mono.

guiding- ZWO asi120mm mono CMOS camera --- Skywatcher 70/500mm telescope

filters- Astronomik HA12nm and Olll 12nm

exposures time - HA 25x 600 sec-Olll 15x600 sec.