-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Astronomy science experts introduced that the eta Aquarius meteor shower, which has the "bloodline" of Halley's Comet, was extremely large on May 6, with a maximum time of ZHR (under ideal observation conditions, when the radiant is directly above the head, the number of meteors that can be seen per hour) It is about 50, and the public who likes meteor showers can pay attention to it as appropriate
The parent comet of the Eta Aquarius meteor shower is the famous Halley's Comet
According to Xiu Lipeng, director of the Tianjin Astronomical Society and an astronomical science expert, this year's eta Aquarius meteor shower will last from April 19 to May 28.
Astronomical forecasts show that this year's eta Aquarius meteor shower is likely to appear around 16:00 on May 6, Beijing time
"Taking the Beijing area as an example, the radiant point of the meteor shower rose at around 2 o'clock on the 6th, but the altitude was low.
Compared to the observation window of less than 2 hours in the northern hemisphere, the eta-Aquarid meteor shower is observable in the southern hemisphere for a longer time
Astronomy science experts also reminded that because humans cannot accurately calculate the distribution structure of comet dust particles, the parent body of meteor showers, it is impossible to make accurate predictions on the occurrence and scale of meteor showers like the prediction of solar and lunar eclipses
