{"id":"vidhyamitra:day:2316-02-01:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2316-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2316-02-01","date_display":"February 1, 2316 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":2316,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2566991.770833,"kali_year":5417,"ahargana":1978526.2708,"sun":{"sidereal_longitude":281.7364,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":1.3675,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.6311,"elapsed_within_tithi_degrees":7.6311},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":1.3675,"elapsed_within_degrees":1.3675},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.1039},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"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":2316,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2566991.770833,"ahargana":1978526.2708,"kali_year":5417,"ayanamsa_lahiri":28.2684,"grahas":{"sun":{"sidereal_longitude":282.50299500000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":5.34889499999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-4.3078},"mars":{"sidereal_longitude":322.5617950000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":290.78509499999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":239.97339499999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":320.05329500000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":281.41109500000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":108.1568,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.1568,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2316,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2566991.770833,"kali_year":5417,"ahargana":1978526.2708,"sun":{"sidereal_longitude":281.7364,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":1.3675,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.6311,"elapsed_within_tithi_degrees":7.6311},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":1.3675,"elapsed_within_degrees":1.3675},"yoga":{"number":22,"name":"Sādhya","sum_longitude":283.1039},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.308,"elongation":79.631},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.308,"opposition_distance":100.369}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":1.04,"elongation":0.486},{"offset_days":8,"type":"lunar","occurs":true,"moon_latitude":0.033,"opposition_distance":1.768}]},"calendars":{"vikram_samvat":2373,"vikram_samvatsara":"Saumya","saka_samvat":2238,"saka_samvatsara":"Durmukhi","bengali_samvat":1723,"malayalam_era":1492,"nanakshahi_year":847,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Saptamī · Vikram 2373 Saumya · Śaka 2238 Durmukhi"},"festivals":[],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"2316-02-01T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 1, 2316 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 1, 2316 CE: Śukla Saptamī · Aśvinī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2316-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2316-02-01","sa":"https://sa.vidhyamitra.com/day/2316-02-01","hi":"https://hi.vidhyamitra.com/day/2316-02-01","x-default":"https://vidhyamitra.com/day/2316-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T00:26:08.696Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-03T00:26:08.696Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}