Astronomy Explained Upon Sir Isaac Newton's Principles: And made easy to those who have not studied mathematicsFerguson, James
Science
Astronomy Explained Upon Sir Isaac Newton's Principles: And made easy to those who have not studied mathematics
Ferguson, James
Astronomy -- Early works to 1800
+------------------------------------+----------+-------------+-------------+
| | | Sun’s Anom. | Moon’s Ano. |
| | D. H. M. +-------------+-------------+
| | | s ° ʹ | s ° ʹ |
| +----------+-------------+-------------+
| Tab. I. Mean New Moon in _March_ | | | |
| A. D. 1777 | 27 7 53 | 9 7 27 | 5 25 51 |
| From which subtract 2200 years | | | |
| in Tab. V. | 6 21 47 | 11 16 26 | 4 20 37 |
| | -------- | ---------- | ---------- |
| Mean Conj. and Anom. in _March_ | | | |
| before Chr. 424 | 20 10 6 | 9 21 1 | 1 5 14 |
| Which with, the total of the three | +-------------+ |
| Equations added | 9 20 | Equ. Moon’s Anom. - 19 |
| | -------- | ---------- |
| Gives the true time of Conjunction | 20 19 26 | Anom. cor. 1 4 55 |
| +----------+ Sun’s Equat. + 1 48 |
| Which was the 21st day of _March_, at | --------- |
| 26 minutes past 7 in the morning at | Moon’s Ano. 1 6 43 |
| _London_: and if 1 hour 35 minutes +---+---------------------------+
| be added for _Athens_, which is 23° 52ʹ | Moon’s ann. Eq. 0^h 20^m add |
| east of the meridian of _London_, we | Her ellipt. Equ. 5 43 add |
| have the time at _Athens_; namely, | Sun’s Equation 3 17 add |
| 1 minute past 9 in the morning. | Total 9 20 add |
+-------------------------------------------+-------------------------------+
EXAMPLE II.
_To find the time of Full Moon in_ October, _the year before Christ
4030_.
The years 1771 added to 4029 make 5800, or 58 Centuries.
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account