{"id":"vidhyamitra:day:1976-09-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1976-09-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1976-09-21","date_display":"September 21, 1976 CE","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":1976,"month":9,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443042.770833,"kali_year":5078,"ahargana":1854577.2708,"sun":{"sidereal_longitude":153.9723,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":117.0496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.0773,"elapsed_within_tithi_degrees":11.0773},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.0496,"elapsed_within_degrees":10.3829},"yoga":{"number":21,"name":"Siddha","sum_longitude":271.0219},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1976,"month":9,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443042.770833,"ahargana":1854577.2708,"kali_year":5078,"ayanamsa_lahiri":23.5278,"grahas":{"sun":{"sidereal_longitude":154.653858,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":116.88955800000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":-4.4098},"mars":{"sidereal_longitude":174.87645799999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":157.286158,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":37.57795799999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":180.51785800000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":109.46995800000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":195.5713,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":15.5713,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":1976,"month":9,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443042.770833,"kali_year":5078,"ahargana":1854577.2708,"sun":{"sidereal_longitude":153.9723,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":117.0496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.0773,"elapsed_within_tithi_degrees":11.0773},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":117.0496,"elapsed_within_degrees":10.3829},"yoga":{"number":21,"name":"Siddha","sum_longitude":271.0219},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.41,"elongation":36.923},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.41,"opposition_distance":143.077}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2033,"vikram_samvatsara":"Śukla","saka_samvat":1898,"saka_samvatsara":"Nala","bengali_samvat":1383,"malayalam_era":1152,"nanakshahi_year":507,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvādaśī · Vikram 2033 Śukla · Śaka 1898 Nala"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1976-09-21T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 21, 1976 CE · Vidhyamitra","description":"Vedic pañchāṅga for September 21, 1976 CE: Kṛṣṇa Dvādaśī · Āśleṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1976-09-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1976-09-21","sa":"https://sa.vidhyamitra.com/day/1976-09-21","hi":"https://hi.vidhyamitra.com/day/1976-09-21","x-default":"https://vidhyamitra.com/day/1976-09-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T10:42:14.451Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T10:42:14.451Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}