{"id":"vidhyamitra:day:1933-05-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1933-05-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1933-05-21","date_display":"May 21, 1933 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":1933,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2427213.770833,"kali_year":5035,"ahargana":1838748.2708,"sun":{"sidereal_longitude":36.7094,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":358.1087,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.3993,"elapsed_within_tithi_degrees":9.3993},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":358.1087,"elapsed_within_degrees":11.4421},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.8182},"karana":{"half_tithi_index":53,"name":"Taitila"},"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":1933,"month":5,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2427213.770833,"ahargana":1838748.2708,"kali_year":5035,"ayanamsa_lahiri":22.9224,"grahas":{"sun":{"sidereal_longitude":36.610141999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":359.188542,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":3.1153},"mars":{"sidereal_longitude":136.553242,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":28.187141999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":141.019042,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":45.309642,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":293.8922419999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":314.2679,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":134.2679,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"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":1933,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2427213.770833,"kali_year":5035,"ahargana":1838748.2708,"sun":{"sidereal_longitude":36.7094,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":358.1087,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.3993,"elapsed_within_tithi_degrees":9.3993},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":358.1087,"elapsed_within_degrees":11.4421},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.8182},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.115,"elongation":38.601},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.115,"opposition_distance":141.399}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1990,"vikram_samvatsara":"Vyaya","saka_samvat":1855,"saka_samvatsara":"Śrīmukha","bengali_samvat":1340,"malayalam_era":1109,"nanakshahi_year":464,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Dvādaśī · Vikram 1990 Vyaya · Śaka 1855 Śrīmukha"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5}],"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":[]},"validity":{"eternal":false,"valid_from":"1933-05-21T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga May 21, 1933 CE · Vidhyamitra","description":"Vedic pañchāṅga for May 21, 1933 CE: Kṛṣṇa Dvādaśī · Revatī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1933-05-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1933-05-21","sa":"https://sa.vidhyamitra.com/day/1933-05-21","hi":"https://hi.vidhyamitra.com/day/1933-05-21","x-default":"https://vidhyamitra.com/day/1933-05-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T08:14:33.314Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T08:14:33.314Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}