Lagna (ascendant): what it is, how to find it and why it matters more than your Sun sign

The lagna, or ascendant, is the sign rising on the eastern horizon at the moment you were born. It is the first house of your chart and the starting point for reading all the others. In Vedic astrology it is as important as the Moon sign, and often more.

Why the time of birth matters

The Earth turns once in 24 hours, so each of the 12 signs rises in turn. Each sign spends about two hours on the horizon. A birth time that is off by an hour or two can change the lagna, and with it every house in the chart.

What it shows

• Your body, health habits and outlook.
• The first impression you give.
• The ruling planet of the lagna, called the lagna lord, which guides the chart.
• Which planets are friendly or difficult for you.

The 12 lagnas and their rulers

• Mesh and Vrishchik: Mars.
• Vrishabh and Tula: Venus.
• Mithun and Kanya: Mercury.
• Kark: Moon.
• Simha: Sun.
• Dhanu and Meen: Jupiter.
• Makar and Kumbh: Saturn.

How to find yours

You need the exact date, time and place of birth. A chart tool such as the free Palmastra Kundli does the calculation. If you do not know your birth time, an astrologer may narrow it down from life events, a process called rectification.

Lagna and Western rising sign

The idea is the same, but Vedic astrology uses the sidereal zodiac, so your Vedic lagna is often the sign before your Western rising sign.

If you know only a rough birth time, check the Moon sign too. It is more stable and still gives a useful reading.