Hong Sung-dae is an educator best known as the author of 'The Essence of Mathematics'. Born on July 25, 1937, in Jeongeup, South Korea, he faced many hardships during his childhood. After graduating from Seoul National University with a degree in mathematics, he became a tutor and later a lecturer. He founded Sangsang High School and led its transition to a charter school. As of 2008, he held several prominent positions, including chairman of Sangsang High School and the Honorary Chairman of the Korean Private Secondary School Association.
Zodiac Sign (Western)
Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 349 days away.
Place of Birth
Time Zone -
Chinese Zodiac Sign
Birth Number
Life Path Number
Name Number (Chaldean)
Name Number (Pythagorean)
Meaning of the name - Hong
Read Full Hong Name AnalysisJuly 25, 1937 Facts
Generation Group
Hong Sung-dae belongs to the Silent Generation group.
Place of Birth: Jeongeup, North Jeolla Province, South Korea
Educated At: Namsung High School | Seoul National University
Occupation: mathematician
Children: Jaehyun Hong
Employers: Sangsang High School | Publisher Seongji-sa
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.

Ephemeris for July 25, 1937
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on July 25, 2025 | Secondary Progressions for July 25, 2025 |
---|---|---|---|
Sun | 2 Leo 18 | 3 Leo 0 | 27 Libra 52 |
Moon | 28 Aquarius 14 | 14 Leo 26 | 22 Taurus 31 |
Mercury | 19 Leo 52 | 13 Leo 20 | 22 Libra 40 |
Venus | 18 Gemini 49 | 23 Gemini 43 | 2 Libra 29 |
Mars | 24 Scorpio 28 | 22 Virgo 27 | 14 Capricorn 42 |
Jupiter | 20 Capricorn 56 | 10 Cancer 22 | 19 Capricorn 34 |
Saturn | 5 Aries 11 | 1 Aries 41 | 29 Pisces 53 |
Uranus | 13 Taurus 27 | 0 Gemini 44 | 12 Taurus 15 |
Neptune | 17 Virgo 3 | 2 Aries 3 | 20 Virgo 5 |
Pluto | 28 Cancer 25 | 2 Aquarius 34 | 0 Leo 6 |
Rahu | 12 Sagittarius 38 | 20 Pisces 36 | 7 Sagittarius 59 |
Ketu | 12 Gemini 38 | 20 Virgo 36 | 7 Gemini 59 |
Chandra Kundali (Equal House, North Indian Diamond Chart)

Astrology Transits Analysis for Year 2025
Note: Multiple transits occurring in close proximity often signify a major event in a person's life.Hong Sung-dae's 2025 Transits to Natal Planets
- Jupiter conjunction Ketu
Exact: 01 January, 2025 - Jupiter opposition Rahu
Exact: 01 January, 2025 - Jupiter conjunction Ketu
Exact: 12 March, 2025 - Jupiter opposition Rahu
Exact: 12 March, 2025 - Mars opposition Jupiter
Exact: 22 March, 2025 - Jupiter conjunction Venus
Exact: 21 April, 2025 - Mars conjunction Mercury
Exact: 31 May, 2025 - Jupiter trine Moon
Exact: 31 May, 2025 - Mars square Rahu
Exact: 10 July, 2025 - Mars square Jupiter
Exact: 08 September, 2025 - Jupiter opposition Jupiter
Exact: 28 September, 2025 - Mars conjunction Mars
Exact: 28 October, 2025 - Jupiter trine Mars
Exact: 07 November, 2025 - Mars aspects Sun
Exact: 17 December, 2025