{"id":"vidhyamitra:day:-1626009-02-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/-1626009-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-1626009-02-21","date_display":"February 21, 1626010 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":-1626009,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592178678.229167,"kali_year":-1622869,"ahargana":-592767143.7292,"sun":{"sidereal_longitude":331.8753,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":256.5927,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.7174,"elapsed_within_tithi_degrees":8.7174},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.5927,"elapsed_within_degrees":3.2594},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.468},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":-1626009,"month":2,"day":21,"hour":6,"minute":30,"calendar":"julian"},"julian_day":-592178678.229167,"ahargana":-592767143.7292,"kali_year":-1622869,"ayanamsa_lahiri":-22718.5258,"grahas":{"sun":{"sidereal_longitude":331.8753,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":256.5927,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-4.441},"mars":{"sidereal_longitude":254.4203,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":317.8784,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":225.6242,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":6.1198,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":250.6825,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":355.8701,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":175.8701,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"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":-1626009,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":-592178678.229167,"kali_year":-1622869,"ahargana":-592767143.7292,"sun":{"sidereal_longitude":331.8753,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":256.5927,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":284.7174,"elapsed_within_tithi_degrees":8.7174},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.5927,"elapsed_within_degrees":3.2594},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.468},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.441,"elongation":75.283},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.441,"opposition_distance":104.717}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":-1625952,"saka_samvat":-1626087,"bengali_samvat":-1626602,"malayalam_era":-1626833,"nanakshahi_year":-1627478,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Navamī · Vikram -1625952 undefined · Śaka -1626087 undefined"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 21, 1626010 BCE · Vidhyamitra","description":"Vedic pañchāṅga for February 21, 1626010 BCE: Kṛṣṇa Navamī · Pūrva Āṣāḍhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/-1626009-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/-1626009-02-21","sa":"https://sa.vidhyamitra.com/day/-1626009-02-21","hi":"https://hi.vidhyamitra.com/day/-1626009-02-21","x-default":"https://vidhyamitra.com/day/-1626009-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T18:06:39.279Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-22T18:06:39.279Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}