Zero Point on the Longitude Scale

[Paliadon (Kris)]

Hi guys, I live in Seymour, Victoria. I am trying to figure out what my zero point on the longitudinal scale is? More to the point do I have my maths correct?

I am +10 hours therefore 10 x 15 equals 150.

The longitude at my location is 147 degrees East.

Therefore I should be subtracting 150 from 147 which would leave me with -3.

I should then use the East side of my longitude scale and set it at -3?

If someone is able to verify that my process above is correct I would be greatly appreciative.

Cheers

Kris

[Paliadon (Kris)]

I forgot to mention setting up an NEQ6Pro from scratch.

[Merlin66 (Ken)]

Kris,
Which longitude scale are we talking about??
I don't think there is such thing on the NEQ6...
If you mean the RA circle (graduated in hours) then zero arrow on the fixed part of the mount would be set to your local siderial time (on the rotating dial) - you can get this from Cartes du Ciel etc

[Barrykgerdes]

I also don't understand what you mean by the logitude scale.

If you have an EQ6 it just needs to be set up so that the RA axis points to the South pole. Your Longitude (and latitude)will be entered when you set up your location in the controller.

If you have the standard tripod one of the legs will have a "N" on it. Set the tripod so that this points as close to true south (not magnetic) as you can get. If you are using a compass don't forget to correct for magnetic deviation. Place the equatorial head on the tripod and set the elevation adjustment at about 36 degrees (this scale could be two or three degrees out but will be adjusted during alignment).

This is the starting position for the alignment. Next just follow the instructions.

Barry