{"id":"vidhyamitra:day:1911-02-16:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1911-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1911-02-16","date_display":"February 16, 1911 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":1911,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2419083.770833,"kali_year":5012,"ahargana":1830618.2708,"sun":{"sidereal_longitude":303.9594,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":157.5882,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.6288,"elapsed_within_tithi_degrees":9.6288},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":157.5882,"elapsed_within_degrees":10.9215},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.5476},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1911,"month":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2419083.770833,"ahargana":1830618.2708,"kali_year":5012,"ayanamsa_lahiri":22.6115,"grahas":{"sun":{"sidereal_longitude":303.6473679999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":156.08376799999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":3.3133},"mars":{"sidereal_longitude":259.576268,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":282.605768,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":203.054168,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":324.29856799999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":9.884867999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":25.0345,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":205.0345,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"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":1911,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2419083.770833,"kali_year":5012,"ahargana":1830618.2708,"sun":{"sidereal_longitude":303.9594,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":157.5882,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.6288,"elapsed_within_tithi_degrees":9.6288},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":157.5882,"elapsed_within_degrees":10.9215},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.5476},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.313,"elongation":146.371},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.313,"opposition_distance":33.629}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":1968,"vikram_samvatsara":"Raktākṣī","saka_samvat":1833,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1318,"malayalam_era":1087,"nanakshahi_year":442,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Tṛtīyā · Vikram 1968 Raktākṣī · Śaka 1833 Virodhakṛt"},"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1911-02-16T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 16, 1911 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 16, 1911 CE: Kṛṣṇa Tṛtīyā · Uttara Phalgunī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1911-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1911-02-16","sa":"https://sa.vidhyamitra.com/day/1911-02-16","hi":"https://hi.vidhyamitra.com/day/1911-02-16","x-default":"https://vidhyamitra.com/day/1911-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T09:20:00.275Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T09:20:00.275Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}