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October 2020 to be a Blue Moon month! Here’s all you need to know about the rare phenomenon
The phrase ‘Once in a Blue Moon’ is aptly suited to the month of October this year, which will witness the rare occurrence of a second full moon, called the ‘Blue Moon’, on Saturday. The usual monthly lunar phenomenon is that every month has one full moon and a new moon. However, there are unusual occasions when the same month gets two full moons.
October 1 saw a full moon and the next full moon falls on October 31, said Arvind Paranjpaye, director of Nehru Planetarium, Mumbai. When there are two full moons in a calendar month, the second full moon is called the Blue Moon, he said. There is a bit of mathematics involved in this. Duration of a lunar month is 29.531 days or 29 days, 12 hours, 44 minutes and 38 seconds. Therefore, to have two full moons in a month, the first full moon should take place on 1st or 2nd of the month, Paranjpaye explained.
This extra time accumulates over the months. After about 30 months there will be one extra full moon in the year, Paranjpaye said. He added that it is also not possible to have a full moon in February as it has 28 days, and 29 days during a leap year. N Rathnashree, the director of Nehru Planetarium, Delhi said the term Blue Moon is a calendrical term. It is not too common to have a Blue Moon in a month of 30 days, she said.
The last Blue Moon in a month with 30 days was on June 30, 2007 and the next one will be on September 30, 2050, Paranjpaye said. There were two Blue Moons in 2018. The first one was on January 31 and the second Blue Moon followed on March 31. This was because the preceding month February had only 28 days, Paranjpaye said. The next Blue Moon will be on August 31, 2023, he added.
T V Venkateswaran, scientist with Vigyan Prasar, the communication wing of the Department of Science and Technology, and an astronomy enthusiast, said this phenomenon is largely restricted to the Gregorian calendar which is being used worldwide. You will not see the phenomenon of two full moons in a month in Islamic or Tibetan calendars or the ones that are being followed in large parts of India as they are based on lunar movements, Venkateswaran said. The phrase ‘Once in a Blue Moon’, denoting something which does not happen very often, came from this phenomenon, Venkateswaran added.
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Haryana
Delhi Weather and AQI Today: Warm start at 22.05 °C, check weather forecast for October 22, 2024
Check the weather forecast and air quality updates for Delhi on October 22, 2024 here.
The temperature in Delhi today, on October 22, 2024, is 32.93 °C. The day’s forecast indicates a minimum and maximum temperature of 22.05 °C and 35.04 °C, respectively. The relative humidity is 26% and the wind speed is 26 km/h. The sun rose at 06:26 AM and will set at 05:44 PM.
Tomorrow, on Wednesday, October 23, 2024, Delhi is predicted to experience a minimum and maximum temperature of 27.42 °C and 34.91 °C, respectively. Tomorrow humidity levels will be at 20%.
With temperatures ranging between 22.05 °C and 35.04 °C, prepare for a hot day and plan outdoor activities accordingly. If you are sensitive to heat, take note of the weather forecast and consider appropriate attire and activities suitable for the prevailing weather.
The AQI in Delhi today stands at 334.0, falling in the very poor category. Everyone should be cautious. Children and people with respiratory diseases, such as asthma, should stay indoors and others should also limit their outdoor activities. Usage of masks and air purifying devices is advised. Being aware of the AQI helps one make informed decisions regarding one’s overall well-being while planning the day’s activities.
Weather and AQI predictions in Delhi for next 7 days:
Date Temperature Sky October 23, 2024 32.93 °C Sky is clear October 24, 2024 32.69 °C Sky is clear October 25, 2024 32.5 °C Sky is clear October 26, 2024 32.07 °C Sky is clear October 27, 2024 30.69 °C Sky is clear October 28, 2024 31.29 °C Sky is clear October 29, 2024 32.09 °C Sky is clear
Weather in other cities on October 22, 2024
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