{"id":"vidhyamitra:day:2031-02-16:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2031-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-02-16","date_display":"February 16, 2031 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":2031,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462913.770833,"kali_year":5132,"ahargana":1874448.2708,"sun":{"sidereal_longitude":302.8934,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":229.2583,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":286.3649,"elapsed_within_tithi_degrees":10.3649},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":229.2583,"elapsed_within_degrees":2.5917},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.1517},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2031,"month":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462913.770833,"ahargana":1874448.2708,"kali_year":5132,"ayanamsa_lahiri":24.2878,"grahas":{"sun":{"sidereal_longitude":302.86414,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":226.98834,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false,"latitude":0.5127},"mars":{"sidereal_longitude":198.55304,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":298.88393999999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":239.8507400000001,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":330.6412399999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":37.74934000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":222.7101,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":42.7101,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"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":2031,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462913.770833,"kali_year":5132,"ahargana":1874448.2708,"sun":{"sidereal_longitude":302.8934,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":229.2583,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":286.3649,"elapsed_within_tithi_degrees":10.3649},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":229.2583,"elapsed_within_degrees":2.5917},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.1517},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.513,"elongation":73.635},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.513,"opposition_distance":106.365}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Navamī · Vikram 2088 Raktākṣī · Śaka 1953 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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"2031-02-16T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga February 16, 2031 CE · Vidhyamitra","description":"Vedic pañchāṅga for February 16, 2031 CE: Kṛṣṇa Navamī · Jyeṣṭhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2031-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2031-02-16","sa":"https://sa.vidhyamitra.com/day/2031-02-16","hi":"https://hi.vidhyamitra.com/day/2031-02-16","x-default":"https://vidhyamitra.com/day/2031-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T07:25:18.641Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T07:25:18.641Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}