1. Installation: Choose a platform and install the tripod, (equatorial mount), main mirror Jane, finder mirror, zenith mirror, eyepiece (low power eyepiece first).
2. Debugging: see "How to debug a finderscope?"
3. Observation: first use the visual method to aim at the observed target, then observe the finderscope with eyes, and adjust the knob of the equatorial mount until the target is in the center of the finderscope cross. Eye observation and mirror If the finder mirror is more accurate, the eyepiece should have an image at this time. Move the observed target to the center of the field of view through each knob, and adjust the knob to make the image clear.
How to debug a finderscope？
1. During the day, first aim the main lens barrel at a distant target (about 500 meters away), such as chimney, air conditioner outdoor unit, etc. Install a low-magnification eyepiece (such as a 20MM eyepiece) to find the target. After roughly aligning the mirror with the target, adjust the focus system until the target is clear and at the center of the main mirror, and then lock the tripod completely.
2. Carefully adjust the three screws on the finderscope, and adjust the target seen by the main mirror to the center of the cross of the finderscope.
3. Replace the high magnification eyepiece (eg 10MM eyepiece) and repeat the above steps. When debugging, the target in the main mirror is always controlled in the center of the cross of the finder mirror.
An equatorial mount has three axes:
1. Horizon axis. It is perpendicular to the ground plane, the lower end is connected to the tripod stand, the upper end is connected to the polar axis, and there is a horizon height dial. Rotate around the horizon axis to adjust the horizon angle of the telescope.
2. Polar axis (right ascension axis). One end is connected with the horizon shaft, and the height angle of the horizon can be adjusted by pulling the pole shaft up and down. The other end is connected with the declination axis at an angle of 90°, and is equipped with an hour angle disc for adjustment of the hour angle (right ascension) pointed by the telescope.
3. Declination axis. It is connected to the polar axis at 90°, and the upper end is connected to the main mirror at 90° to ensure that the mirror is parallel to the polar axis. The lower end is connected with a counterweight, and is equipped with a declination disc, which is used for declination adjustment of the telescope pointing.