A Hatched Cocoon, IC 410 Emission Nebula in Auriga
IC410
is an emission nebula located in a large HII galactic region in the
constellation of Auriga. Embedded in the nebula there is an open
cluster of massive hot newborn stars catalogued as NGC 1893.This
wide field view of IC 410 shows a cocoon like structure made of the
ionized hydrogen gas in the HII region.
The cocoon appears to be hatched by the erosion of the solar winds and
ionization produced by the young stars within. The opening allows
peeking inside and enjoying the view of the newborn stars in a very bright
and colorful scene produced by the light of the hydrogen alpha (asigned to the green channel in this image),
oxygen III (blue) and sulfur II (red) emission lines.
Technical Details:
Objects: IC 410 Emission nebulain Auriga
Observing Site: Azor Observatory, Las Rozas, Madrid, Spain. Sky brightness 18.84 mag
arcsec-2
Dates: 2009 December 4,5,12,13,15,16
Camera: SBIG STL-11000M @ -20ºC
Telescope: ASA N10 astrograph @ f/3.6, Astrophysics AP1200 mount
Filters: Astrodon 6nm Ha, SII and OIII
Exposure: Total exposure 14.5 hours. Ha 510 minutes (17x30 min subs); SII 150 min (5x30);
OIII 210 min (7x30)
Processing Software: Maxim DL, Photoshop
Comments: CCD Commander used for unattended data acquisition. HST Palette (Ha=G, SII=R,
OIII=B) . Shown at 25% size
