FOOTPRINT
20-04-2007, 10:28 AM
Hi All,
Had some more clear weather so had a go at Markarians Chain of Galaxies with the ED80 + F-6.3 Focal reducer (this is a Meade SCT reducer and not made for this kind of work, but with an all black background, and no Coma to worry about I gave it a go) The Field is not as wide as when I used the Skywatcher 100mm + FR, but imaging was sharper.
Thanks to Ken ive added a negative of the picture with designations of the brighter Galaxies, The brightest of the group is ngc-4486 (M87) at Mag.8.6 , ngc-4438 Mag.11, not sure what ngc4413 is but it looks the dimmest (must look it up).
Pis were- 4 x 6 Min. Exp. at ISO-800 DF removed, guided.
cheers......Jim
Had some more clear weather so had a go at Markarians Chain of Galaxies with the ED80 + F-6.3 Focal reducer (this is a Meade SCT reducer and not made for this kind of work, but with an all black background, and no Coma to worry about I gave it a go) The Field is not as wide as when I used the Skywatcher 100mm + FR, but imaging was sharper.
Thanks to Ken ive added a negative of the picture with designations of the brighter Galaxies, The brightest of the group is ngc-4486 (M87) at Mag.8.6 , ngc-4438 Mag.11, not sure what ngc4413 is but it looks the dimmest (must look it up).
Pis were- 4 x 6 Min. Exp. at ISO-800 DF removed, guided.
cheers......Jim