{"id":"vidhyamitra:day:1779-04-04:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1779-04-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1779-04-04","date_display":"April 4, 1779 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":1779,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2370919.770833,"kali_year":4880,"ahargana":1782454.2708,"sun":{"sidereal_longitude":354.0133,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":211.2937,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.2804,"elapsed_within_tithi_degrees":1.2804},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.2937,"elapsed_within_degrees":11.2937},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.307},"karana":{"half_tithi_index":36,"name":"Bava"},"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":1779,"month":4,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2370919.770833,"ahargana":1782454.2708,"kali_year":4880,"ayanamsa_lahiri":20.7694,"grahas":{"sun":{"sidereal_longitude":353.348087,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":209.00388700000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":1.9499},"mars":{"sidereal_longitude":220.953487,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":5.892786999999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":151.01538700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":310.6485869999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":218.40628700000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":56.995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":236.995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1779,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2370919.770833,"kali_year":4880,"ahargana":1782454.2708,"sun":{"sidereal_longitude":354.0133,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":211.2937,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":217.2804,"elapsed_within_tithi_degrees":1.2804},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.2937,"elapsed_within_degrees":11.2937},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.307},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.95,"elongation":142.72},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.95,"opposition_distance":37.28}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1836,"vikram_samvatsara":"Paridhāvi","saka_samvat":1701,"saka_samvatsara":"Vikāri","bengali_samvat":1186,"malayalam_era":955,"nanakshahi_year":310,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Caturthī · Vikram 1836 Paridhāvi · Śaka 1701 Vikāri"},"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},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"1779-04-04T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga April 4, 1779 CE · Vidhyamitra","description":"Vedic pañchāṅga for April 4, 1779 CE: Kṛṣṇa Caturthī · Viśākhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1779-04-04","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1779-04-04","sa":"https://sa.vidhyamitra.com/day/1779-04-04","hi":"https://hi.vidhyamitra.com/day/1779-04-04","x-default":"https://vidhyamitra.com/day/1779-04-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-25T09:18:03.187Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-25T09:18:03.187Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}