Posts

Showing posts from December, 2023

Installing the Howie Glatter Sling

Image
On May 4, 2023, I ordered the Howie Glatter Cable Sling.  The Howie Glatter sling is a new support for the primary mirror of my 18" Obsession.  It has a few advantages over the standard Kevlar sling: Stability and Consistency: The main advantage of the Howie Glatter Cable Sling is that it provides stable support for the primary mirror, because the cable sling doesn’t stretch or slip off the mirror. Equal Mass Distribution: The cable sling has equal mass on both sides of the cable, which helps to reduce astigmatism. By maintaining balance, the cable sling minimizes any distortions caused by uneven weight distribution. Edge Support: The Howie Glatter Cable Sling restrains the mirror to its lowest equilibrium position, eliminating sideways miscollimation. The Howie Glatter sling ensures better collimation and overall performance. The edge support ensures that the mirror remains properly aligned during an observation session. The Howie Glatter sling arrived on September 25, 2023.  It

Adhesive felt on the Obsession

Image
The interior of my Obsession's mirror box is not entirely black.  I am unsure whether it has always been this way or whether the black paint has faded over time.  I still had a lot of black adhesive felt lying around from a previous project.  I applied this adhesive felt to the mirror box of the Obsession telescope, making it considerably darker than before.  This will undoubtedly improve the contrast of the faint objects I intend to observe.  Part of the mirror box with adhesive felt, a part is still with the original paint. Adhesive felt installed in the mirror box. The original paint in the mirror box.