JPH02167421A - Moonrise and moonset observing and recording device - Google Patents

Abstract

PURPOSE:To accurately observe and store a moonrise and a moonset by winding a specific observation sheet around a cylinder and inserting a moon scale slidably thereupon. CONSTITUTION:The moon scale 5 is lowered vertically while attention is paid so that a slit plate 13 dose not move on a column 8. This slit plate 13 is provided with plotting holes 15 which can plot intersections of slits indicating observed bearing and altitude on the observation sheet 4. Then, plotting on the sheet is performed by using the longitudinal groove 10 of the column 8 and the plotting holes 15 at the intersections of the slit plate 13 to record the position with time and when recording is performed at constant intervals of time, the motion of the moon can be recorded. Then the sheet 4 is detached from the cylinder 3 after the observation. Then a line of 0 degree is set down, the bearing and altitude become easy to see in a vertically and horizontally orderly state and plotted observation points are connected to represent the motion of the moon such as the moonrise and moonset as a record.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an instrument for observing the moon's rising and setting and recording movements such as moonrise and moonset.

[Conventional technology]

Traditionally, the observation of the moon, including other astronomical observations, has been to use a high-magnification astronomical telescope to observe the actual state of the moon. Although there are devices that can observe changes in January's movement and record them accurately and easily, there is nothing known.

[Problem to be solved by the invention]

Observation of the moon is often carried out from evening to night, or early in the morning.When it gets dark at night, it is difficult to see the tip of the pen, making it impossible to accurately record the moon's position. It is said that it is difficult to accurately record both the azimuth and angle. As young people, especially elementary and junior high school students, are becoming increasingly interested in 1111 observations of celestial bodies, we provide equipment that allows them to easily and accurately record observations of movements such as moonrise and moonset. It is considered to be extremely meaningful to improve one's motivation.

[Means to solve tlIIM]

Therefore, the present invention aims to achieve the intended purpose by having the following configuration as a means for solving the above problems.

That is, in the present invention, a compass needle 2 and a cylinder 3 are fixed on a base board i that displays east, west, and north, and a cylinder 3 is arranged on the outer periphery of the cylinder. An observation paper 4 is wrapped at equal intervals with the circumference as a reference, and the altitude scale is a tangent ratio to the radius of the cylinder.A moon scale 5 is slidably fitted into the cylinder 3 from above the observation paper. let This moon scale has a ring 6 with an inner diameter slightly larger than the outer diameter of the cylinder 3, and vertical grooves 9 and 10 on opposing positions on the circumference, respectively.
Pillars 7 and 8, which are perforated, are fixed and connected at the upper part. It is preferable to attach a damper to the inner peripheral surface of the ring 6 to prevent the lunar scale 5 from sliding down due to its own weight. (Not shown) The vertical grooves 9 of one of the pillars 7 are azimuth slits, and the vertical grooves 10 of the other pillar 8 are azimuth slits. A left-right slit plate 11 with a high-level eye slit 12 is removably attached to the upper connecting portion of both supports 7.8, and a left-right slit plate 13 with a high-level eye slit 14 is attached to the support 8. It is assembled so that it can slide up and down, and if necessary, a damper is attached to the sliding part to prevent it from falling under its own weight. This slit plate I3 is provided with a plot hole 15 for plotting on the observation paper 4. Slit plate 11.13
are separated from the relevant parts and stored in the cylinder 3.

[Effect]

In the present invention, in the above configuration, the base 1 has east, west,
The compass needle 2 used to indicate north and accurately set the direction of the base shall be aligned with north and fixed with sellotape or the like to ensure and maintain the accuracy of the position. The base l is installed on a horizontal platform. Wrap the observation paper 4 with the 0° line (horizontal line) W at the top and the high altitude scale at the bottom, aligning the horizontal VAW with the upper edge of the cylinder 3, and aligning the south line of the observation paper 4 with the north of the base 1. .

Next, observation begins, and to measure the azimuth, the moon scale 5 is adjusted without rotating left or right so that the moon can be seen through the two azimuth slits, ie, vertical grooves 9 and 10. This will determine the direction of the moon at that time, so do not move it left or right. To measure the altitude, first, the slit plate 13 provided with the altitude eye slit 14 is slid up and down, and the altitude measurement slit 12 of the slit plate 11 and the slit plate 13 are
The altitude of the moon is fixed at a position where it can be seen through the eye slit 14, and this determines the altitude of the moon at this time. Therefore, while being careful not to move the slit plate 13 from the support 8, the entire moon scale 5 is vertically lowered so as not to lose its orientation. The slit plate 13 is provided with a plot hole 15 so that the intersection of the slits indicating the observed direction and altitude can be plotted on the observation paper 4, so that no matter where the plot hole is located, the tip of the pen reaches the observation sheet through this hole and can be plotted. That is, if you plot on an observation sheet using the plot hole 15 located at the intersection of the vertical groove 10 of the column 8 and the slit plate 13, the position K (azimuth, altitude) of the moon at that time will be recorded, and if you record it at regular intervals, the position of the moon will be recorded. Movement can be recorded.

When the observation is completed, the observation paper 4 is removed from the cylinder 3. Thus, by placing the 0゛ line (horizontal line) at the bottom, it becomes easier to see the direction, altitude, top, bottom, left and right, and by connecting the plotted observation points, you can record and express the movement of the moon, such as moonrise and moonset. This makes it easy to conduct the correct investigation.

The principle of the present invention will be described. In FIG. 2, the angle α between the azimuth of the moon M and the south is equal to the angle β between the north and the vertical groove 10 of the support 8, so the vertical groove 10 becomes the azimuth of the moon on the observation sheet. Therefore, when the ring 6 is rotated left and right along the cylinder 3, the vertical grooves 9 and 10 of the support columns 7 and 8 are formed into two vertical grooves that rotate in opposite directions about the center of the cylinder 3 when viewed from the front in FIG. If the moon becomes visible through grooves 9 and 10,
The line connecting these two vertical grooves is the direction of the moon. Next, in FIG. 3, the angle γ between the horizontal line and the line connecting the moon and the advanced financial power slit 12 is equal to the angle δ between the horizontal line and the line connecting the moon and the advanced objective slit 14. This will be the altitude of the moon on the observation sheet. Therefore, the high slit plate 13
If you slide it up and down and the moon becomes visible through this slit 14 and the advanced wealth slit 12, the line connecting the two slits will be the altitude of the moon.

When aligning the moon with a slit, keep your eyes a suitable distance U (usually about 30 cm) away from the scale to reduce eye fatigue and make it easier to see and align. Since the azimuth and altitude are measured separately, the azimuth and altitude can be easily measured no matter where the moon is within each slit.

On the observation paper used in the present invention, the azimuth scale is graduated at equal intervals based on the circumference of the cylinder, but the altitude is also scaled at equal intervals because the altitude is scaled by the tangent ratio to the radius of the cylinder. The corrected image is then transferred and recorded onto the corrected recording paper. Although it may be difficult for elementary school students to correct and record the transcription, it is possible to copy the observation paper and recording paper onto a transparent sheet.
Even elementary school students can easily make corrected transfers by arranging (transparent ranges) and projecting them using an OHP (overhead projector) and teaching them how to make corrections.

〔Effect of the invention〕

As described above, the present invention involves wrapping a predetermined observation paper around a cylinder on a base whose orientation is set accurately, and fitting a lunar scale in a slidable manner onto the cylinder, so that the circumference of the scale is Observe the direction of the moon through the vertical groove on the pillar facing the
Since the altitude of the moon can be observed through a slit plate and plotted on observation paper on a cylinder at regular intervals, even elementary school students can easily and easily learn about the moon without any experience. Movements such as sunrise and moonset can be accurately observed and recorded, and it is convenient for managing and storing equipment. Just by storing the recording paper, valuable materials can be stored, and it can be used only as a school teaching equipment. First, its practical value for those involved is truly great.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. The engineering drawing is a perspective view of the present invention, Figures 2 and 3 are action explanatory diagrams, Figure 2 is a plan view of direction measurement, Figure 3 is a side view during altitude measurement, and Figure 4 is an observation sheet. The plan view of FIG. 5 shows the case where the same as above is corrected and transferred. 1...Base, 2...Compass, 3.
...Cylinder, 4...Observation paper, 5...Moon slit 7
．． 8... Support column, 9, lO... Vertical groove, 12...
High financial strength slit. 14...Advanced eye slit, 61...Ring, 11...Slit plate. 13...Slit plate, 15...Plot hole

Claims (1)

[Claims] A magnetic compass needle and a cylinder for setting the direction accurately are fixed on a base, and an observation sheet with the direction scale at equal intervals based on the outer circumference of the cylinder and the altitude scale scaled by the tangent ratio to the radius of the circumference is used. A removable ring is fitted onto the outer circumference of the cylinder, and a slidable ring is fitted onto the cylinder from above the observation paper. Supports with vertical grooves are fixed at opposing positions on the circumference of the ring, and both supports are attached. The upper connecting part has a slit plate in the left and right directions that can be attached and removed, and one of the pillars has a slit plate in the left and right directions with slit holes facing the vertical grooves that can be slid up and down. Moonrise and sunset observation recorder