{"id":"vidhyamitra:day:-1626067-09-18:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/-1626067-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-1626067-09-18","date_display":"September 18, 1626068 BCE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-1626067,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592199653.229167,"kali_year":-1622926,"ahargana":-592788118.7292,"sun":{"sidereal_longitude":174.2206,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":3.1319,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":188.9114,"elapsed_within_tithi_degrees":8.9114},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":3.1319,"elapsed_within_degrees":3.1319},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.3525},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":-1626067,"month":9,"day":18,"hour":6,"minute":30,"calendar":"julian"},"julian_day":-592199653.229167,"ahargana":-592788118.7292,"kali_year":-1622926,"ayanamsa_lahiri":-22719.328,"grahas":{"sun":{"sidereal_longitude":174.2206,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":3.1319,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":-1.8355},"mars":{"sidereal_longitude":30.8057,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":161.1074,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":264.6568,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":219.0288,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":258.0204,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":27.2265,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":207.2265,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-1626067,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592199653.229167,"kali_year":-1622926,"ahargana":-592788118.7292,"sun":{"sidereal_longitude":174.2206,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":3.1319,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":188.9114,"elapsed_within_tithi_degrees":8.9114},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":3.1319,"elapsed_within_degrees":3.1319},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.3525},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.836,"elongation":171.089},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.836,"opposition_distance":8.911}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":-1626010,"saka_samvat":-1626145,"bengali_samvat":-1626660,"malayalam_era":-1626891,"nanakshahi_year":-1627536,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Pratipada · Vikram -1626010 undefined · Śaka -1626145 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":true},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 18, 1626068 BCE · Vidhyamitra","description":"Vedic pañchāṅga for September 18, 1626068 BCE: Kṛṣṇa Pratipada · Aśvinī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/-1626067-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/day/-1626067-09-18","sa":"https://sa.vidhyamitra.com/day/-1626067-09-18","hi":"https://hi.vidhyamitra.com/day/-1626067-09-18","x-default":"https://vidhyamitra.com/day/-1626067-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T07:03:52.506Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-04T07:03:52.506Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}