{"id":"vidhyamitra:day:2099-08-17:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2099-08-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2099-08-17","date_display":"August 17, 2099 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":2099,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487932.770833,"kali_year":5201,"ahargana":1899467.2708,"sun":{"sidereal_longitude":118.4166,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":126.0726,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.656,"elapsed_within_tithi_degrees":7.656},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":126.0726,"elapsed_within_degrees":6.0726},"yoga":{"number":19,"name":"Parigha","sum_longitude":244.4892},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2099,"month":8,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2487932.770833,"ahargana":1899467.2708,"kali_year":5201,"ayanamsa_lahiri":25.2447,"grahas":{"sun":{"sidereal_longitude":119.27472999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":128.53963,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":2.3166},"mars":{"sidereal_longitude":0.5794300000000021,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":117.67642999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":148.47243000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":124.86013000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":164.64863000000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":337.0831,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":157.0831,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2099,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487932.770833,"kali_year":5201,"ahargana":1899467.2708,"sun":{"sidereal_longitude":118.4166,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":126.0726,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.656,"elapsed_within_tithi_degrees":7.656},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":126.0726,"elapsed_within_degrees":6.0726},"yoga":{"number":19,"name":"Parigha","sum_longitude":244.4892},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.317,"elongation":7.656},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.317,"opposition_distance":172.344}},"eclipse_window_40days":[]},"calendars":{"vikram_samvat":2156,"vikram_samvatsara":"Aṅgirasa","saka_samvat":2021,"saka_samvatsara":"Siddhārthī","bengali_samvat":1506,"malayalam_era":1275,"nanakshahi_year":630,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Pratipada · Vikram 2156 Aṅgirasa · Śaka 2021 Siddhārthī"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"2099-08-17T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga August 17, 2099 CE · Vidhyamitra","description":"Vedic pañchāṅga for August 17, 2099 CE: Śukla Pratipada · Maghā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2099-08-17","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2099-08-17","sa":"https://sa.vidhyamitra.com/day/2099-08-17","hi":"https://hi.vidhyamitra.com/day/2099-08-17","x-default":"https://vidhyamitra.com/day/2099-08-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T08:11:50.244Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T08:11:50.244Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}