{"id":"vidhyamitra:day:2105-02-20:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2105-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2105-02-20","date_display":"February 20, 2105 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":2105,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489945.770833,"kali_year":5206,"ahargana":1901480.2708,"sun":{"sidereal_longitude":305.7854,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":12.6603,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":66.8749,"elapsed_within_tithi_degrees":6.8749},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":12.6603,"elapsed_within_degrees":12.6603},"yoga":{"number":24,"name":"Śukla","sum_longitude":318.4457},"karana":{"half_tithi_index":11,"name":"Taitila"},"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":2105,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489945.770833,"ahargana":1901480.2708,"kali_year":5206,"ayanamsa_lahiri":25.3217,"grahas":{"sun":{"sidereal_longitude":305.91531899999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":14.768918999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":2.7541},"mars":{"sidereal_longitude":295.7361189999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":322.516619,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":315.39001899999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":317.221219,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":237.04571899999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":230.4247,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":50.4247,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2105,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489945.770833,"kali_year":5206,"ahargana":1901480.2708,"sun":{"sidereal_longitude":305.7854,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":12.6603,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":66.8749,"elapsed_within_tithi_degrees":6.8749},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":12.6603,"elapsed_within_degrees":12.6603},"yoga":{"number":24,"name":"Śukla","sum_longitude":318.4457},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.754,"elongation":66.875},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.754,"opposition_distance":113.125}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2162,"vikram_samvatsara":"Bahudhānya","saka_samvat":2027,"saka_samvatsara":"Krodhana","bengali_samvat":1512,"malayalam_era":1281,"nanakshahi_year":636,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Ṣaṣṭhī · Vikram 2162 Bahudhānya · Śaka 2027 Krodhana"},"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":[{"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":"2105-02-20T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 20, 2105 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 20, 2105 CE: Śukla Ṣaṣṭhī · Aśvinī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2105-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2105-02-20","sa":"https://sa.vidhyamitra.com/day/2105-02-20","hi":"https://hi.vidhyamitra.com/day/2105-02-20","x-default":"https://vidhyamitra.com/day/2105-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T18:41:20.243Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T18:41:20.243Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}