{"id":"vidhyamitra:day:1678-04-08:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1678-04-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1678-04-08","date_display":"April 8, 1678 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":1678,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2334034.770833,"kali_year":4779,"ahargana":1745569.2708,"sun":{"sidereal_longitude":0.0162,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":190.0559,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.0396,"elapsed_within_tithi_degrees":10.0396},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":190.0559,"elapsed_within_degrees":3.3892},"yoga":{"number":15,"name":"Vajra","sum_longitude":190.0721},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":1678,"month":4,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2334034.770833,"ahargana":1745569.2708,"kali_year":4779,"ayanamsa_lahiri":19.3587,"grahas":{"sun":{"sidereal_longitude":359.134665,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":189.442765,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false,"latitude":-1.632},"mars":{"sidereal_longitude":336.435965,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":341.655165,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":333.86416499999996,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":21.423564999999996,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":51.08936499999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":211.3398,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":31.3398,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":1678,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2334034.770833,"kali_year":4779,"ahargana":1745569.2708,"sun":{"sidereal_longitude":0.0162,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":190.0559,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.0396,"elapsed_within_tithi_degrees":10.0396},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":190.0559,"elapsed_within_degrees":3.3892},"yoga":{"number":15,"name":"Vajra","sum_longitude":190.0721},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.632,"elongation":169.96},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.632,"opposition_distance":10.04}},"eclipse_window_40days":[{"offset_days":13,"type":"solar","occurs":true,"moon_latitude":1.359,"elongation":0.405}]},"calendars":{"vikram_samvat":1735,"vikram_samvatsara":"Prajāpati","saka_samvat":1600,"saka_samvatsara":"Kālayukta","bengali_samvat":1085,"malayalam_era":854,"nanakshahi_year":209,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pratipada · Vikram 1735 Prajāpati · Śaka 1600 Kālayukta"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi_ingress":"Meṣa"},"precedence":2}],"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":"1678-04-08T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga April 8, 1678 CE · Vidhyamitra","description":"Vedic pañchāṅga for April 8, 1678 CE: Kṛṣṇa Pratipada · Svātī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1678-04-08","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1678-04-08","sa":"https://sa.vidhyamitra.com/day/1678-04-08","hi":"https://hi.vidhyamitra.com/day/1678-04-08","x-default":"https://vidhyamitra.com/day/1678-04-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T03:36:22.671Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-04T03:36:22.671Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}