{"id":"vidhyamitra:day:2279-04-17:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2279-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2279-04-17","date_display":"April 17, 2279 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":2279,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2553553.770833,"kali_year":5380,"ahargana":1965088.2708,"sun":{"sidereal_longitude":358.5383,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":59.0546,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.5162,"elapsed_within_tithi_degrees":0.5162},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.0546,"elapsed_within_degrees":5.7212},"yoga":{"number":5,"name":"Śobhana","sum_longitude":57.5929},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":2279,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2553553.770833,"ahargana":1965088.2708,"kali_year":5380,"ayanamsa_lahiri":27.7545,"grahas":{"sun":{"sidereal_longitude":359.052625,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":57.64542499999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":-2.9572},"mars":{"sidereal_longitude":107.20162499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":13.384824999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":204.96422499999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":38.38822499999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":204.10642499999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":100.1667,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":280.1667,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2279,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2553553.770833,"kali_year":5380,"ahargana":1965088.2708,"sun":{"sidereal_longitude":358.5383,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":59.0546,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.5162,"elapsed_within_tithi_degrees":0.5162},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.0546,"elapsed_within_degrees":5.7212},"yoga":{"number":5,"name":"Śobhana","sum_longitude":57.5929},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.957,"elongation":60.516},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.957,"opposition_distance":119.484}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2336,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2201,"saka_samvatsara":"Siddhārthī","bengali_samvat":1686,"malayalam_era":1455,"nanakshahi_year":810,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Ṣaṣṭhī · Vikram 2336 Aṅgirasa · Śaka 2201 Siddhārthī"},"festivals":[{"id":"yamuna-jayanti","name":"Yamunā Jayantī","name_sanskrit":"यमुना जयन्ती","tradition":"Vaishnava","associated_deity":"Yamunā Devī (Krishna's playmate)","significance":"Manifestation of Yamunā Devī; Vraja-bhakti-pravāhinī.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4}],"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":"2279-04-17T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga April 17, 2279 CE · Vidhyamitra","description":"Vedic pañchāṅga for April 17, 2279 CE: Śukla Ṣaṣṭhī · Mṛgaśīrṣā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2279-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2279-04-17","sa":"https://sa.vidhyamitra.com/day/2279-04-17","hi":"https://hi.vidhyamitra.com/day/2279-04-17","x-default":"https://vidhyamitra.com/day/2279-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:57:18.995Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-06-01T04:57:18.995Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}