{"id":"vidhyamitra:day:1668-09-07:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1668-09-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1668-09-07","date_display":"September 7, 1668 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":1668,"month":9,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2330534.770833,"kali_year":4770,"ahargana":1742069.2708,"sun":{"sidereal_longitude":145.8869,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":152.4143,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.5274,"elapsed_within_tithi_degrees":6.5274},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.4143,"elapsed_within_degrees":5.7477},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.3012},"karana":{"half_tithi_index":1,"name":"Bava"},"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":1668,"month":9,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2330534.770833,"ahargana":1742069.2708,"kali_year":4770,"ayanamsa_lahiri":19.2248,"grahas":{"sun":{"sidereal_longitude":145.80879100000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":152.75209100000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":4.0565},"mars":{"sidereal_longitude":231.46309100000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":137.93699100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":55.93479100000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":157.35489099999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":293.17419099999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":36.7866,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":216.7866,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"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":1668,"month":9,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2330534.770833,"kali_year":4770,"ahargana":1742069.2708,"sun":{"sidereal_longitude":145.8869,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":152.4143,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":6.5274,"elapsed_within_tithi_degrees":6.5274},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":152.4143,"elapsed_within_degrees":5.7477},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.3012},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.057,"elongation":6.527},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.057,"opposition_distance":173.473}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1725,"vikram_samvatsara":"Durmati","saka_samvat":1590,"saka_samvatsara":"Kīlaka","bengali_samvat":1075,"malayalam_era":844,"nanakshahi_year":199,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pratipada · Vikram 1725 Durmati · Śaka 1590 Kīlaka"},"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":[]},"validity":{"eternal":false,"valid_from":"1668-09-07T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 7, 1668 CE · Vidhyamitra","description":"Vedic pañchāṅga for September 7, 1668 CE: Śukla Pratipada · Uttara Phalgunī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1668-09-07","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1668-09-07","sa":"https://sa.vidhyamitra.com/day/1668-09-07","hi":"https://hi.vidhyamitra.com/day/1668-09-07","x-default":"https://vidhyamitra.com/day/1668-09-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T19:30:14.883Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-04T19:30:14.883Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}