{"id":"vidhyamitra:day:1920-02-18:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1920-02-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1920-02-18","date_display":"February 18, 1920 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":1920,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422372.770833,"kali_year":5021,"ahargana":1833907.2708,"sun":{"sidereal_longitude":305.6536,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":282.616,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.9624,"elapsed_within_tithi_degrees":0.9624},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":282.616,"elapsed_within_degrees":2.616},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.2697},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1920,"month":2,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422372.770833,"ahargana":1833907.2708,"kali_year":5021,"ayanamsa_lahiri":22.7373,"grahas":{"sun":{"sidereal_longitude":305.35520399999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":283.373104,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":4.2756},"mars":{"sidereal_longitude":193.75820399999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":316.184304,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":108.85680400000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":272.12800400000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":136.816804,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":210.7674,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":30.7674,"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":1920,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422372.770833,"kali_year":5021,"ahargana":1833907.2708,"sun":{"sidereal_longitude":305.6536,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":282.616,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.9624,"elapsed_within_tithi_degrees":0.9624},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":282.616,"elapsed_within_degrees":2.616},"yoga":{"number":18,"name":"Varīyān","sum_longitude":228.2697},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.276,"elongation":23.038},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.276,"opposition_distance":156.962}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1977,"vikram_samvatsara":"Śrīmukha","saka_samvat":1842,"saka_samvatsara":"Raudra","bengali_samvat":1327,"malayalam_era":1096,"nanakshahi_year":451,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Caturdaśī · Vikram 1977 Śrīmukha · Śaka 1842 Raudra"},"festivals":[{"id":"maha-shivaratri","name":"Mahā Śivarātri","name_sanskrit":"महा शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"The greatest night of Lord Śiva; cosmic dance of dissolution.","vrata":true,"primary_observance":"Strict fast + night-long vigil + 4-yāma pūjā","detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":1},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"maha-shivaratri-walk","name":"Mahā Śivarātri Walk","name_sanskrit":"महा शिवरात्रि यात्रा","type":"festival","description":"Śiva-stuti through Bhāgavata + Mahābhārata Anuśāsana.","step_count":12,"url":"/walk/maha-shivaratri-walk"},"reason":"Today is Mahā Śivarātri — its dedicated walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1920-02-18T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 18, 1920 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 18, 1920 CE: Kṛṣṇa Caturdaśī · Śravaṇa.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1920-02-18","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1920-02-18","sa":"https://sa.vidhyamitra.com/day/1920-02-18","hi":"https://hi.vidhyamitra.com/day/1920-02-18","x-default":"https://vidhyamitra.com/day/1920-02-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T10:03:01.148Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T10:03:01.148Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}