{"id":"vidhyamitra:day:1781-11-18:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1781-11-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1781-11-18","date_display":"November 18, 1781 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":1781,"month":11,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371878.770833,"kali_year":4883,"ahargana":1783413.2708,"sun":{"sidereal_longitude":215.2766,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":245.9037,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":30.627,"elapsed_within_tithi_degrees":6.627},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":245.9037,"elapsed_within_degrees":5.9037},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.1803},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1781,"month":11,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2371878.770833,"ahargana":1783413.2708,"kali_year":4883,"ayanamsa_lahiri":20.8061,"grahas":{"sun":{"sidereal_longitude":215.325246,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":246.412646,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false,"latitude":-3.8851},"mars":{"sidereal_longitude":308.611846,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":237.35794600000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":227.779046,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":260.01924600000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":241.31304599999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":6.1825,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":186.1825,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"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":1781,"month":11,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371878.770833,"kali_year":4883,"ahargana":1783413.2708,"sun":{"sidereal_longitude":215.2766,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":245.9037,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":30.627,"elapsed_within_tithi_degrees":6.627},"nakshatra":{"number":19,"name":"Mūla","pada":2,"moon_longitude":245.9037,"elapsed_within_degrees":5.9037},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.1803},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.885,"elongation":30.627},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.885,"opposition_distance":149.373}},"eclipse_window_40days":[{"offset_days":-17,"type":"lunar","occurs":true,"moon_latitude":0.709,"opposition_distance":1.916}]},"calendars":{"vikram_samvat":1838,"vikram_samvatsara":"Ānanda","saka_samvat":1703,"saka_samvatsara":"Plava","bengali_samvat":1188,"malayalam_era":957,"nanakshahi_year":312,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Tṛtīyā · Vikram 1838 Ānanda · Śaka 1703 Plava"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1781-11-18T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga November 18, 1781 CE · Vidhyamitra","description":"Vedic pañchāṅga for November 18, 1781 CE: Śukla Tṛtīyā · Mūla.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1781-11-18","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1781-11-18","sa":"https://sa.vidhyamitra.com/day/1781-11-18","hi":"https://hi.vidhyamitra.com/day/1781-11-18","x-default":"https://vidhyamitra.com/day/1781-11-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-25T13:55:01.215Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-25T13:55:01.215Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}