{"id":"vidhyamitra:day:1784-03-13:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1784-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1784-03-13","date_display":"March 13, 1784 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":1784,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2372724.770833,"kali_year":4885,"ahargana":1784259.2708,"sun":{"sidereal_longitude":332.9731,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":224.9772,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.0041,"elapsed_within_tithi_degrees":0.0041},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.9772,"elapsed_within_degrees":11.6439},"yoga":{"number":15,"name":"Vajra","sum_longitude":197.9504},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1784,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2372724.770833,"ahargana":1784259.2708,"kali_year":4885,"ayanamsa_lahiri":20.8384,"grahas":{"sun":{"sidereal_longitude":332.295423,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":222.15082299999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":-4.4721},"mars":{"sidereal_longitude":43.79602299999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":308.383923,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":305.80712300000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":297.72962299999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":273.922423,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":321.3574,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.3574,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1784,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2372724.770833,"kali_year":4885,"ahargana":1784259.2708,"sun":{"sidereal_longitude":332.9731,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":224.9772,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":252.0041,"elapsed_within_tithi_degrees":0.0041},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.9772,"elapsed_within_degrees":11.6439},"yoga":{"number":15,"name":"Vajra","sum_longitude":197.9504},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.472,"elongation":107.996},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.472,"opposition_distance":72.004}},"eclipse_window_40days":[{"offset_days":-6,"type":"lunar","occurs":true,"moon_latitude":-0.303,"opposition_distance":1.442},{"offset_days":8,"type":"solar","occurs":true,"moon_latitude":1.402,"elongation":1.809}]},"calendars":{"vikram_samvat":1841,"vikram_samvatsara":"Piṅgala","saka_samvat":1706,"saka_samvatsara":"Krodhi","bengali_samvat":1191,"malayalam_era":960,"nanakshahi_year":315,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Saptamī · Vikram 1841 Piṅgala · Śaka 1706 Krodhi"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1784-03-13T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga March 13, 1784 CE · Vidhyamitra","description":"Vedic pañchāṅga for March 13, 1784 CE: Kṛṣṇa Saptamī · Anurādhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1784-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1784-03-13","sa":"https://sa.vidhyamitra.com/day/1784-03-13","hi":"https://hi.vidhyamitra.com/day/1784-03-13","x-default":"https://vidhyamitra.com/day/1784-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-25T13:26:51.241Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-25T13:26:51.241Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}