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  2. Astronomical basis of the Hindu calendar - Wikipedia

    en.wikipedia.org/wiki/Astronomical_basis_of_the...

    A candra māna varṣa or lunar year is made up of 12 consecutive candramāsa. [5] These twelve candramāsa are designated by unique names caitra, vaiśākha, etc. [note 2] In some instances an additional candramāsa, known as an adhikamāsa, is added to synchronise the candra māna varṣa with the solar year or saura māna varṣa.

  3. Hindu calendar - Wikipedia

    en.wikipedia.org/wiki/Hindu_calendar

    The astronomical basis of the Hindu lunar months. Also illustrates Adhika Masa (Year 2-Bhadrapada) repeats; the first time the Sun moves entirely within Simha Rashi thus rendering it an Adhika Masa. Twelve Hindu mas (māsa, lunar month) are equal to approximately 354 days, while the length of a sidereal (solar) year is about 365 days.

  4. A Question and Answer Guide to Astronomy - Wikipedia

    en.wikipedia.org/wiki/A_Question_and_Answer...

    The Science Teacher summarizes by stating that each question is likely to be thought of by a student, and that "the answers are informative, well constructed, and thorough". [ 2 ] The book covers information about the planets , the Earth , the Universe , practical astronomy, history, and awkward questions such as astronomy in the Bible , UFOs ...

  5. A Guide to the Scientific Knowledge of Things Familiar

    en.wikipedia.org/wiki/A_Guide_to_the_Scientific...

    The object of The Guide to Science was to present answers to over 2000 questions about common phenomena. [1] There are questions dealing with man-made objects such as candles, stoves and chimneys, as well as answers seeking to explain natural phenomena such as thunder, lightning (including a mention of ball lightning [7]), clouds, dew, and ...

  6. Adhika-masa - Wikipedia

    en.wikipedia.org/wiki/Adhika-masa

    An extra month, or adhika-masa falls every 32.5 months on an average. The solar year is made up of 365 days and about 6 hours, and the lunar year is made up of 354 days. This causes a gap of 11 days, 1 hour, 31 minutes and 12 seconds between the lunar and the solar years. As this gap accumulates each year, it approximates in 2.7 years to one month.

  7. Magha (month) - Wikipedia

    en.wikipedia.org/wiki/Magha_(month)

    Since the traditional Hindu calendar follows the lunar cycle, Magha's start and end dates vary from year to year, unlike the months of the Hindu solar calendars. Magha is a winter (Shishira Ritu) month. [2] [3] The lunar month of Magha overlaps with the solar month of Makara, which begins with the Sun's entry into Capricorn. [4] [5]

  8. The Manga Guides - Wikipedia

    en.wikipedia.org/wiki/The_Manga_Guides

    The Manga Guides (Japanese: マンガでわかる, Hepburn: Manga de Wakaru) is a series of educational Japanese manga books. Each volume explains a particular subject in science or mathematics.

  9. Earth mass - Wikipedia

    en.wikipedia.org/wiki/Earth_mass

    An Earth mass (denoted as M 🜨, M ♁ or M E, where 🜨 and ♁ are the astronomical symbols for Earth), is a unit of mass equal to the mass of the planet Earth.The current best estimate for the mass of Earth is M 🜨 = 5.9722 × 10 24 kg, with a relative uncertainty of 10 −4. [2]