Print protractor12/27/2023 ![]() Then frame the visible star, so that it shows up at the center of your live view. The whole concept is easy to grasp: to hop from a visible star to your target, you have to calculate the difference between the RA and DEC coordinates for the two objects and rotate the camera of the proper amount in RA and DEC.īegin by positioning yourself behind the mount and by aligning the mount to the celestial pole. Take the part of the water hose and cut it so to have a large base with a small step on top, with the step fitting into the part you screw on the tap. The hole of the disc is much larger than the screw to attach the camera to the declination bracket of the Star Adventurer: we need a better fit to remove lateral play. Make The Mounting Assembly For A Snugger Fit Sand down the disc until you get a thickness of about 0.8/0.6 mm: this way you will be left with enough thread to mount your camera on the declination scale.Ĭenter the protractor on the disc and tape it to it using transparent scotch tape: this will make the protractor moisture resistant and you will not smudge the printed scale.įinally cut paper covering the hole of the disc. ![]() If we print the scale and mount it directly, night dew and condensation will make it saggy and useless. This is the rigid support we will tape the Protractor on. Next, use a compass to draw a circle in between the two scales and cut along this circle. Neither of those changes in a human lifetime. Instead, Right Ascension (RA) and Declination (DEC) are referred with respect to Earth’s rotational axis, Earth’s equator, and the position of the Sun at the Vernal Equinox (March 31st). Better because they do not depend on your position on Earth, nor from the date and time of the day. Right Ascension and Declination are global stellar coordinates, like Altitude and Azimuth… but better. Combine this with a way to measure changes in Declination, and you will not suffer for the lack of GoTo. Never mind, you can read here my Ultimate Guide To The Use Of The Star Adventurer.Ī less obvious way to use those obscure circles at the back of your unit is to measure changes in Right Ascension. Instead, the user manual is laughable on this. I’d blame user laziness if only SkyWatcher would bother to describe their use in a way that would actually help. Too many people dismiss those graduation circles, originally there to help you polar align the mount, in favor of one of the many (allegedly) easier to use app. I am a big fan of the SkyWatcher Star Adventurer and I think the graduation circles at its back are what set this tracker apart from the rest of the tracker on the market.
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