--- likestargazing <[EMAIL PROTECTED]> wrote: > > If I disable in V2.76 all star-catalogues, nevertheless (HIP)-stars > are visible. So V3.x is a little bit more transparent, than V2.x.
Not all star catalogs are under preferences>catalog and object parameters>stars1 or stars 2. In this window, click the "catalogs" tab to find the hip catalog and turn it off. Other catalogs are under the "size", "magnitude", or "nebulae" tabs. > ... please look at my new > picture. With 15 degrees there is a clustering visable looking > like a cross I think I see it. I just downloaded your new picture and added a yellow outline of what I think is the cross. See the new image in the folder. I also noticed something that looks like a sharp edge to the star density, within the horizontal part of the cross, and outlined it again in yellow. The cross itself could be just normal variation in star density, but the "edge" is probably a glitch in the original catalogs. The autoscan techniques have problems with scratches in the plates, diffraction spikes from the original scope, satellite/airplane trails, all of which are straight lines. The autoscan detects the extra light, but it's designed to indicate stars, so it thinks this light is a straight string of stars. The autoscan computer was not smart enough to recognize artifacts. There are many of these problems in the deep catalogs. -John __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/skychart-discussion/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
