Briefly describe the influencing factors of astronomical observations

Natural factors that affect the effects of astronomical observations

We know that astronomical observations are greatly affected by external factors. Therefore, astronomical hobbyists need to pay more attention. The following are some of the more important influencing factors:

1. Pollution of light sources: try not to use your telescope surrounded by light. High-magnification astronomical telescopes are very sensitive to light. It is very sensitive. Near urban areas, the effect of bright light is more obvious. It seems that many stars will disappear at the horizontal plane near urban areas. The heat on the earth's surface will also cause fluctuations in the air, which will distort the image. The deformation will cause poor observation conditions.

2. The observation angle between the telescope, the stars and the horizon has a great influence on the observation effect. If the measured star is close to the horizon, the target will be blurred. The air surrounding the earth is always in motion. This movement and rotation of the atmosphere will cause poor images especially at high magnifications. Perhaps after a few nights, the observation situation will improve.

3. Moonlight may also be another factor that affects observation. A dazzling full moon or bright moonlight will blur nearby stars or planets, and the moon itself is best between darkness and dawn. Observation status. Try to avoid observing from an open window, especially in the cold season, when the temperature difference between indoors and outdoors is large, which will make the observation quality the worst.

4. Accumulated clouds in the sky cannot penetrate the observation, but fortunately these clouds move frequently. Stars flash rapidly because of the convection of cold air and hot air. This will cause poor observation conditions, so try to observe at night when the starlight is stable.

5. Heavy fog will also cause adverse situations. Under light fog, the atmosphere is usually more stable, and it may be possible to observe. Starlight is always about the size of a pinhead, and at such a long distance, it is impossible to tell the difference in size when observing with a telescope at low or high magnification.