{"id":"vidhyamitra:day:1998-09-09:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/1998-09-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-09-09","date_display":"September 9, 1998 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":1998,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451065.770833,"kali_year":5100,"ahargana":1862600.2708,"sun":{"sidereal_longitude":141.6299,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":354.7828,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.1529,"elapsed_within_tithi_degrees":9.1529},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.7828,"elapsed_within_degrees":8.1162},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.4128},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1998,"month":9,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451065.770833,"ahargana":1862600.2708,"kali_year":5100,"ayanamsa_lahiri":23.8347,"grahas":{"sun":{"sidereal_longitude":142.33852000000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":357.93392,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":-3.1417},"mars":{"sidereal_longitude":108.47152,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":127.85641999999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":330.16102,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":128.98972000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":9.225819999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":130.4742,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.4742,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1998,"month":9,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451065.770833,"kali_year":5100,"ahargana":1862600.2708,"sun":{"sidereal_longitude":141.6299,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":354.7828,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.1529,"elapsed_within_tithi_degrees":9.1529},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":354.7828,"elapsed_within_degrees":8.1162},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":136.4128},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.142,"elongation":146.847},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.142,"opposition_distance":33.153}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":-0.467,"elongation":1.174}]},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Tṛtīyā · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"valid_from":"1998-09-09T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga September 9, 1998 CE · Vidhyamitra","description":"Vedic pañchāṅga for September 9, 1998 CE: Kṛṣṇa Tṛtīyā · Revatī.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/1998-09-09","hreflang_alternates":{"en":"https://vidhyamitra.com/day/1998-09-09","sa":"https://sa.vidhyamitra.com/day/1998-09-09","hi":"https://hi.vidhyamitra.com/day/1998-09-09","x-default":"https://vidhyamitra.com/day/1998-09-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T08:52:17.208Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-14T08:52:17.208Z","pillar_versions":{"BOB-History":"Pūrṇa"}}}