On this page a 21°×40° wide-field view which covers most of the constellations Andromeda and Lacerta is presented. The center of the photographed region lies about 20° south of the galactic plane and is rich of high galactic latitude nebulae. Most famous objects are M33 (Triangulum galaxy), M31 (Andromeda Galaxy) and SH2-126, a large HII region in Lacerta.
There are short descriptions below each image.
Full resolution (39 MB):
Half resolution (10 MB):
The triangulum Galaxy M33 is depicted in the top right corner, the Andromeda galaxy M31 is in the center and SH2-126 is the red nebula at bottom.
This visualization is a false color image where H-alpha (including red continuum) is mapped to red, blue continuum is mapped to green and red continuum (without H-alpha) is mapped to blue. White calibration was derived from star average which is why galaxies look white. H-alpha emission nebulae appear red in this image.
Stars are partially subtracted. Further image processing steps are dynamic range compression using a nonlinear hi-pass filter and tonal curve correction.
Image data are:
|Center position:||RA: 0h04, DEC: 41°|
|Orientation:||North is left (exactly)|
|Scale:||10 arcsec/pixel (in center at maximum resolution)|
|FOV:||21°×40° (through center)|
|Exposure times:||H-alpha: 6.3d, continuum channels: 4.6d (sum of exposure times of all frames used to calculate the image)|
Image processing steps where: