{"id":"vidhyamitra:day:1985-05-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1985-05-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-05-21","date_display":"May 21, 1985 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":1985,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446206.770833,"kali_year":5087,"ahargana":1857741.2708,"sun":{"sidereal_longitude":36.2743,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":50.2561,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":13.9818,"elapsed_within_tithi_degrees":1.9818},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":50.2561,"elapsed_within_degrees":10.2561},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.5305},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1985,"month":5,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446206.770833,"ahargana":1857741.2708,"kali_year":5087,"ayanamsa_lahiri":23.6488,"grahas":{"sun":{"sidereal_longitude":36.29507000000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":48.92977000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false,"latitude":1.7081},"mars":{"sidereal_longitude":53.53496999999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":17.62666999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":293.85627,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":353.19477,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":210.45267,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":27.9274,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":207.9274,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":5,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446206.770833,"kali_year":5087,"ahargana":1857741.2708,"sun":{"sidereal_longitude":36.2743,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":50.2561,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":13.9818,"elapsed_within_tithi_degrees":1.9818},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":50.2561,"elapsed_within_degrees":10.2561},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.5305},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.708,"elongation":13.982},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.708,"opposition_distance":166.018}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":0.744,"elongation":2.194}]},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Dvitīyā · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"1985-05-21T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga May 21, 1985 CE · Vidhyamitra","description":"Vedic pañchāṅga for May 21, 1985 CE: Śukla Dvitīyā · Rohiṇī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1985-05-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1985-05-21","sa":"https://sa.vidhyamitra.com/day/1985-05-21","hi":"https://hi.vidhyamitra.com/day/1985-05-21","x-default":"https://vidhyamitra.com/day/1985-05-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T16:08:44.072Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T16:08:44.072Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}