Guest guest Posted December 24, 2001 Report Share Posted December 24, 2001 Pranaam to all! I am pasting here a formula for computation of houses that I found on the internet. I am interested in knowing which book is this formula from? How is it derived? Thanks, Sagar The Computation of Houses First the longitude of the Ascendant is calculated by using the following formula Tan L = Sin E ------ Cos E Cos w - Sin w Tan A Where L is the Ascendant, E is the Right Ascension of East Point , w the Sun's maximum declination and A - the latitude of the place. Once the Ascending degree is known , 180 degrees is subtracted to get the Descendant. The MC is calculated by using the following formula Tan K = Tan R / Cos w Where is the longitude of the MC, R the Right Ascension of the Meridien Cusp and w the Sun's maximum declination. 180 degrees deducted from the MC is the longitude of the IC. These 4 are the Four Houses of the Zodiac. Ascendant is the Ist House, IC the Fourth, Descendant the Seventh and MC, the tenth. We have said that each sign of the Zodiac is 30 degrees each. If the Ascending Degree is Pisces, then the Ascendant is Pisces, the IC is Gemini, the Descendant is Virgo and the MC, Sagittarius. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 24, 2001 Report Share Posted December 24, 2001 Dear Sagar, Construct the diagram and Apply Spherical Trigonometric formulaes Any 3-D trigonometry book is good for this. Or, have a look on Engineering Maths, which may have one chapter on 3-d trigonometry. You can try on internet. Best Regards, Venkat > Pranaam to all! > > I am pasting here a formula for computation of houses that I found > on the internet. > I am interested in knowing which book is this formula from? > How is it derived? > > Thanks, > Sagar > > > The Computation of Houses > > First the longitude of the Ascendant is calculated by using the > following formula > > > Tan L = Sin E > ------ > Cos E Cos w - Sin w Tan A > > > > Where L is the Ascendant, E is the Right Ascension of East Point , w > the Sun's maximum declination and A - the latitude of the place. > Once the Ascending degree is known , 180 degrees is subtracted to get > the Descendant. > > The MC is calculated by using the following formula > > > Tan K = Tan R / Cos w > > > > Where is the longitude of the MC, R the Right Ascension of the > Meridien Cusp and w the Sun's maximum declination. 180 degrees > deducted from the MC is the longitude of the IC. > > These 4 are the Four Houses of the Zodiac. Ascendant is the Ist > House, IC the Fourth, Descendant the Seventh and MC, the tenth. > > We have said that each sign of the Zodiac is 30 degrees each. If the > Ascending Degree is Pisces, then the Ascendant is Pisces, the IC is > Gemini, the Descendant is Virgo and the MC, Sagittarius. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 24, 2001 Report Share Posted December 24, 2001 Dear Sagar, Such equations are given in 'Tables of Ascendants on Nirayan Basis' by N C Lahiri. Shiv Chadha www.vedicweb.com/Manorama.htm - sagar_chitnis vedic astrology Tuesday, December 25, 2001 4:28 AM [vedic astrology] which book is this formula from? Pranaam to all!I am pasting here a formula for computation of houses that I found on the internet.I am interested in knowing which book is this formula from?How is it derived? Thanks,SagarThe Computation of HousesFirst the longitude of the Ascendant is calculated by using the following formula Tan L = Sin E ------ Cos E Cos w - Sin w Tan AWhere L is the Ascendant, E is the Right Ascension of East Point , w the Sun's maximum declination and A - the latitude of the place. Once the Ascending degree is known , 180 degrees is subtracted to get the Descendant.The MC is calculated by using the following formula Tan K = Tan R / Cos wWhere is the longitude of the MC, R the Right Ascension of the Meridien Cusp and w the Sun's maximum declination. 180 degrees deducted from the MC is the longitude of the IC.These 4 are the Four Houses of the Zodiac. Ascendant is the Ist House, IC the Fourth, Descendant the Seventh and MC, the tenth.We have said that each sign of the Zodiac is 30 degrees each. If the Ascending Degree is Pisces, then the Ascendant is Pisces, the IC is Gemini, the Descendant is Virgo and the MC, Sagittarius. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.