A Cosmic Tale, The W5, A Radio Source Within The Soul Nebula

The W5, a radio source within the Soul nebula, spans an area of sky equivalent to four full moons and is about 6,500 light-years away in the constellation Cassiopeia. Like other massive star-forming regions, such as Orion and Carina, W5 contains large cavities that were carved out by radiation and winds from the region''s most massive stars. According to the theory of triggered star formation, the carving out of these cavities pushes gas together, causing it to ignite into successive generations of new stars. The image in the gallery above contains some of the best evidence yet for the triggered star formation theory. Scientists analyzing the photo have been able to show that the ages of the stars become progressively and systematically younger with distance from the center of the cavities.

Soul Nebula (Sharpless 2-199, LBN 667) is emission nebulae in Cassiopeia. Several small open clusters are embedded in the nebula: CR 34, 632, and 634[citation needed] (in the head) and IC1848 (in the body). The object is more commonly called by the cluster designation IC1848.

http://en.wikipedia.org/wiki/Soul_Nebula#mediaviewer/File:Celestial_Valentine.jpg

Instruments and exposure data:

W.O FLT110 with dedicated TMB field flattener

FeatherTouch 3'''' focuser

Starizona MicroTouch autofocuser

W.O ZS80 ED

SBIG ST10XME CFW9

Meade DSI

Filters:

Ha 5nm Astrodon

Sky-Watcher EQ6 Pro

Ha :26*10min bin1x1 (4 hours 20 min)

Athens,

Hellas