Sunday, May 3, 2026

What Do You Do If There is a House Blocking Polaris?

Worst of all, it is your house? Getting a telescope mount lined up true North which is within a degree of Polaris is very important.

I am using my Losmandy GM8 mount at the moment while waiting for an 8 pound counterweight to properly balance the G811G goto mount.

The GM8 is not goto. This is a very solid older mount. The solution:

1. Align to North as accurately as Google Maps allows.

2. Pick an object in the sky with a known Right Ascension and Declination. Google "Jupiter RA and DEC right now". 

3. Center the telescope on it and see how far from that DEC the declination setting circle is. In thus case, it should be +22 degrees. Move the polar axis in whatever direction seems most likely to correct it to the correct DEC. On the GM8, there is a azimuth adjustment screw good for several degrees either direction. 

4. Keep moving polar axis until recentering Jupiter, in thus case, gets it at +22 degrees. You are aligned with the universe's coordinate system. You chi is probably adjusted now as well as a besutiful aura.

5. The RA axis circle is only lightly bound to the polar axis. Turn it until the RA there matches the RA of the object.

6. Whatever you want to see, turn declination axis to that DEC and polar axis to that RA. You are done. As long as you do not move that driven RA setting circle and keep the clock drive running, you are set for the night!

No comments:

Post a Comment