{"id":"vidhyamitra:day:1919-02-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1919-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1919-02-21","date_display":"February 21, 1919 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":1919,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422010.770833,"kali_year":5020,"ahargana":1833545.2708,"sun":{"sidereal_longitude":308.9526,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":199.3226,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":250.37,"elapsed_within_tithi_degrees":10.37},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.3226,"elapsed_within_degrees":12.6559},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.2752},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":1919,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422010.770833,"ahargana":1833545.2708,"kali_year":5020,"ayanamsa_lahiri":22.7234,"grahas":{"sun":{"sidereal_longitude":308.637735,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":196.622835,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":-2.2907},"mars":{"sidereal_longitude":327.702135,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":307.410835,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":73.568535,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":330.931735,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":122.10323500000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":229.9479,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":49.9479,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1919,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422010.770833,"kali_year":5020,"ahargana":1833545.2708,"sun":{"sidereal_longitude":308.9526,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":199.3226,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":250.37,"elapsed_within_tithi_degrees":10.37},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.3226,"elapsed_within_degrees":12.6559},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.2752},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.291,"elongation":109.63},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.291,"opposition_distance":70.37}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1976,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1841,"saka_samvatsara":"Siddhārthī","bengali_samvat":1326,"malayalam_era":1095,"nanakshahi_year":450,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Ṣaṣṭhī · Vikram 1976 Aṅgirasa · Śaka 1841 Siddhārthī"},"festivals":[{"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}],"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":"1919-02-21T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 21, 1919 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 21, 1919 CE: Kṛṣṇa Ṣaṣṭhī · Svātī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1919-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1919-02-21","sa":"https://sa.vidhyamitra.com/day/1919-02-21","hi":"https://hi.vidhyamitra.com/day/1919-02-21","x-default":"https://vidhyamitra.com/day/1919-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T09:42:32.338Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T09:42:32.338Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}