1:45 PM - 3:15 PM
[O11-P20] The Development of a Method to Determine Meteor Velocity at One Spot
Keywords:Meteor Speed, Observation from One Spot
Aim
Previous conventional methods require observation from two points to determine meteor’s velocity.
In this research, observation from one spot determines the velocity.
Experiment Method
We detected the Perseid meteor by recording the sky from 8:00 p.m. on August 12, 2024 to 5:00 a.m. on August 14, 2024. We compared the picture from the video to the distribution map, made from a star map. We analyzed azimuth(Φ) and height(θ), and measured the coordinates of meteor’s luminous point and its disappearing point. Furthermore, we determined the coordinate of the radiating point by using the data from the website of the National Astronomical Observatory of Japan. We measured the time when the meteor lit up. We supposed that the meteor's luminous height is 100 km. From these data points, we could calculate these values.
Consequence
Figure.
Consideration
It is possible to determine the velocity by using the sine theorem and trigonometric function. In addition, it is easy to experiment with observations made what at one point. However, there is a problem because the observed data differs from the reference data.
We don't know the luminous height from observations made at one spot.
We will compare the observed data from two points with observed data from one spot.
Previous conventional methods require observation from two points to determine meteor’s velocity.
In this research, observation from one spot determines the velocity.
Experiment Method
We detected the Perseid meteor by recording the sky from 8:00 p.m. on August 12, 2024 to 5:00 a.m. on August 14, 2024. We compared the picture from the video to the distribution map, made from a star map. We analyzed azimuth(Φ) and height(θ), and measured the coordinates of meteor’s luminous point and its disappearing point. Furthermore, we determined the coordinate of the radiating point by using the data from the website of the National Astronomical Observatory of Japan. We measured the time when the meteor lit up. We supposed that the meteor's luminous height is 100 km. From these data points, we could calculate these values.
Consequence
Figure.
Consideration
It is possible to determine the velocity by using the sine theorem and trigonometric function. In addition, it is easy to experiment with observations made what at one point. However, there is a problem because the observed data differs from the reference data.
We don't know the luminous height from observations made at one spot.
We will compare the observed data from two points with observed data from one spot.