NGC7635 and M52. The Bubble Nebula
and the Scorpion Cluster
Diffuse nebula and open cluster in Cassiopeia

The Bubble nebula, also cataloged as Caldwell 11, is the minor of three bubbles around a very massive star in cassiopeia. The bubble is formed by the gas ejected by the star. Its
distance to earth is 11,300 light years.

M52 is an open cluster located in the milky way field. It is one of the clusters  for which the name "salt and pepper" has been proposed its distance to earth is 5,000 light years and its visual magnitude is 5.8 . More information can be found at Messier index. M52

Full resolution central crop

Date and location 22 to 25 november 2011. Caraquiz, Guadalajara.
Telescope ASA N10, F=906mm on  ASA DDM85 mount. No autoguiding.
Camera FLI ML11002. H-alfa 7nm and RGB Baader filters.
Image processing
H-alfa: 28x900s; RGB: 30x300s. Images stacked  and processed with Pixinsight .

Date and location 24-ago-2006. Caraquiz, Guadalajara.
Telescope Megrez II 80ED, f=560mm. Focal reducer 0.7. Autoguíde with Guidemaster and Toucam SC3 and LX200R
Camera Artemis285. IDAS LPS Hutech filter, with IR cut
Image processing
L: 12x300s; H-alfa: 12x600s; RGB: 5x120s. Images stacked  with AIP4WIN.  Histograms, HLHRGB  and process with Pixinsight LE

Other images of NGC7635

Other images of M52

Visits since september 14th, 2004:   Contador