Vivah muhurat accuracy: OmAstroVedic vs Drik Panchang
Last updated 2026-08-06
OmAstroVedic’s vivah (marriage) muhurat engine is fully algorithmic — no hand-maintained date list. For 2026 it independently reproduces 58 of the 59 marriage dates Drik Panchang publishes for New Delhi, and every no-marriage gap lands exactly. The one miss — 11 December — is a nakshatra boundary two minutes before midnight.
How the dates are computed
Each date is derived at run time from Swiss Ephemeris positions at the Lahiri sidereal ayanamsha for New Delhi (28.61° N, 77.21° E). A day qualifies when an auspicious vivah nakshatra holds, the tithi is valid, and neither Venus nor Jupiter is combust (asta) — the classical requirement that the two marriage-significator planets be visible. The exclusion windows are applied directly: Holashtak, Chaturmas (Devshayani to Devuthani Ekadashi), the adhika (leap) month and eclipses.
There is no override table — the same rules run for every year, so any date below can be re-derived from first principles. Verified against drikpanchang.com’s published “2026 Hindu Marriage Dates” for New Delhi.
The benchmark — 58/59 Drik dates reproduced
Every date below is one Drik Panchang publishes as auspicious for marriage in 2026, and our engine independently produces each one.
| Month (2026) | Auspicious dates | Match |
|---|---|---|
| February | 5, 6, 8, 10, 12, 14, 19, 20, 21, 24, 25, 26 | ✓ ×12 |
| March | 2, 3, 4, 7, 8, 9, 11, 12 | ✓ ×8 |
| April | 15, 20, 21, 25, 26, 27, 28, 29 | ✓ ×8 |
| May | 1, 3, 5, 6, 7, 8, 13, 14 | ✓ ×8 |
| June | 21, 22, 23, 24, 25, 26, 27, 29 | ✓ ×8 |
| July | 1, 6, 7, 11 | ✓ ×4 |
| November | 21, 24, 25, 26 | ✓ ×4 |
| December | 2, 3, 4, 5, 6, 12 | ✓ ×6 |
The one miss, disclosed — 11 December 2026
Drik lists 11 December; our engine does not. The cause is a nakshatra boundary: the Moon crosses from Mula into Purva Ashadha about two minutes before midnight, so whether the pre-dawn marriage window still counts as a valid nakshatra falls within ephemeris tolerance. We keep the rule-faithful result rather than nudge a threshold to force a match. Every other Drik date, and every no-marriage gap, lands exactly.
Frequently asked
- Are OmAstroVedic’s marriage (vivah) muhurat dates accurate?
- For 2026, our engine independently produces 58 of the 59 Hindu marriage dates Drik Panchang publishes for New Delhi, and every no-marriage gap (Holashtak, Chaturmas, adhika maasa, Venus/Jupiter combustion) lands exactly. The one miss, 11 December, is a nakshatra boundary two minutes before midnight — within ephemeris tolerance.
- How are the marriage dates computed?
- Every date is derived at run time from Swiss Ephemeris positions (Lahiri sidereal) for New Delhi: the auspicious vivah nakshatras, valid tithis, Venus and Jupiter not combust (asta), and the exclusion windows — Holashtak, Chaturmas (Devshayani to Devuthani), the adhika (leap) month and eclipses. No hand-maintained date table.
- Why does OmAstroVedic list more dates than Drik Panchang?
- Our engine surfaces every nakshatra-valid window; Drik prunes a few further with additional lagna-shuddhi (ascendant purity) checks. Those extras are labelled as nakshatra-valid windows, not asserted as Drik dates — so the reading stays honest rather than over-claiming.