{"id":"vidhyamitra:day:1930-02-21:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1930-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1930-02-21","date_display":"February 21, 1930 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":1930,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426028.770833,"kali_year":5031,"ahargana":1837563.2708,"sun":{"sidereal_longitude":309.108,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":224.0676,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.9595,"elapsed_within_tithi_degrees":10.9595},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.0676,"elapsed_within_degrees":10.7343},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":173.1756},"karana":{"half_tithi_index":45,"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":1930,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2426028.770833,"ahargana":1837563.2708,"kali_year":5031,"ayanamsa_lahiri":22.8771,"grahas":{"sun":{"sidereal_longitude":308.81791799999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":226.41711800000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-2.0422},"mars":{"sidereal_longitude":289.18701799999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":284.18941799999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":45.16001799999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":313.27451799999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":256.577818,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":17.0549,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":197.0549,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"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":1930,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426028.770833,"kali_year":5031,"ahargana":1837563.2708,"sun":{"sidereal_longitude":309.108,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":224.0676,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.9595,"elapsed_within_tithi_degrees":10.9595},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":224.0676,"elapsed_within_degrees":10.7343},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":173.1756},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.042,"elongation":85.04},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.042,"opposition_distance":94.96}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1987,"vikram_samvatsara":"Subhānu","saka_samvat":1852,"saka_samvatsara":"Pramoda","bengali_samvat":1337,"malayalam_era":1106,"nanakshahi_year":461,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Aṣṭamī · Vikram 1987 Subhānu · Śaka 1852 Pramoda"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3},{"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"1930-02-21T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 21, 1930 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 21, 1930 CE: Kṛṣṇa Aṣṭamī · Anurādhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1930-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1930-02-21","sa":"https://sa.vidhyamitra.com/day/1930-02-21","hi":"https://hi.vidhyamitra.com/day/1930-02-21","x-default":"https://vidhyamitra.com/day/1930-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T06:11:21.423Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T06:11:21.423Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}