{"id":"vidhyamitra:city-day:mathura:1998-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1998-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-05-12","date_display":"May 12, 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":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450945.770833,"kali_year":5100,"ahargana":1862480.2708,"sun":{"sidereal_longitude":27.3064,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":212.9584,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.652,"elapsed_within_tithi_degrees":5.652},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.9584,"elapsed_within_degrees":12.9584},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.2648},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450945.770833,"ahargana":1862480.2708,"kali_year":5100,"ayanamsa_lahiri":23.8301,"grahas":{"sun":{"sidereal_longitude":27.300704999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":212.21380499999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":4.3685},"mars":{"sidereal_longitude":27.538205000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":1.8794050000000198,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":327.730405,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":345.550705,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":3.05150500000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":136.8324,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":316.8324,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1998,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450945.770833,"kali_year":5100,"ahargana":1862480.2708,"sun":{"sidereal_longitude":27.3064,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":212.9584,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.652,"elapsed_within_tithi_degrees":5.652},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.9584,"elapsed_within_degrees":12.9584},"yoga":{"number":19,"name":"Parigha","sum_longitude":240.2648},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.368,"elongation":174.348},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.368,"opposition_distance":5.652}},"eclipse_window_40days":[]},"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:33","sunsetLocal":"18:59","solarNoonLocal":"12:16","dayLengthHours":13.434833971501861,"dayLengthDisplay":"13 Hours 26 Mins 05 Secs","nightLengthDisplay":"10 Hours 33 Mins 55 Secs","moonriseLocal":"19:14","moonsetLocal":"05:56","rahuKala":{"name":"Rāhu Kāla","start":"15:37","end":"17:18","startHours":15.618168831547656,"endHours":17.29752307798539,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:54","end":"10:35","startHours":8.900751845796725,"endHours":10.580106092234459,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:16","end":"13:56","startHours":12.259460338672191,"endHours":13.938814585109924,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:07","startHours":8.676837946271695,"endHours":9.124665745321757,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:28","startHours":6.101828101733838,"endHours":6.4600903409738875,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:42","startHours":11.81163253962213,"endHours":12.707288137722253,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:45","end":"04:39","startHours":3.7507321567210115,"endHours":4.646387754821136,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:25","end":"05:33","startHours":4.422473855296104,"endHours":5.54204335292126,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:24","startHours":14.4985993339225,"endHours":15.394254932022625,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:47","end":"19:11","startHours":18.776877324423122,"endHours":19.17687732442312,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:59","end":"19:32","startHours":18.97687732442312,"endHours":19.5366620732357,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:44","end":"20:29","startHours":18.72687732442312,"endHours":20.47687732442312,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:42","startHours":23.811632539622128,"endHours":24.707288137722255,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:33","end":"07:13","startHours":5.54204335292126,"endHours":7.221397599358992,"quality":"inauspicious"},{"name":"Udveg","start":"07:13","end":"08:54","startHours":7.221397599358992,"endHours":8.900751845796725,"quality":"inauspicious"},{"name":"Chala","start":"08:54","end":"10:35","startHours":8.900751845796725,"endHours":10.580106092234459,"quality":"neutral"},{"name":"Labha","start":"10:35","end":"12:16","startHours":10.580106092234459,"endHours":12.259460338672191,"quality":"auspicious"},{"name":"Amṛta","start":"12:16","end":"13:56","startHours":12.259460338672191,"endHours":13.938814585109924,"quality":"auspicious"},{"name":"Kāla","start":"13:56","end":"15:37","startHours":13.938814585109924,"endHours":15.618168831547656,"quality":"inauspicious"},{"name":"Śubha","start":"15:37","end":"17:18","startHours":15.618168831547656,"endHours":17.29752307798539,"quality":"auspicious"},{"name":"Roga","start":"17:18","end":"18:59","startHours":17.29752307798539,"endHours":18.97687732442312,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:59","end":"20:18","startHours":18.97687732442312,"endHours":20.29752307798539,"quality":"inauspicious"},{"name":"Śubha","start":"20:18","end":"21:37","startHours":20.29752307798539,"endHours":21.618168831547656,"quality":"auspicious"},{"name":"Roga","start":"21:37","end":"22:56","startHours":21.618168831547656,"endHours":22.938814585109924,"quality":"inauspicious"},{"name":"Udveg","start":"22:56","end":"00:16","startHours":22.938814585109924,"endHours":24.25946033867219,"quality":"inauspicious"},{"name":"Chala","start":"00:16","end":"01:35","startHours":24.25946033867219,"endHours":25.58010609223446,"quality":"neutral"},{"name":"Labha","start":"01:35","end":"02:54","startHours":25.58010609223446,"endHours":26.900751845796727,"quality":"auspicious"},{"name":"Amṛta","start":"02:54","end":"04:13","startHours":26.900751845796727,"endHours":28.221397599358994,"quality":"auspicious"},{"name":"Kāla","start":"04:13","end":"05:33","startHours":28.221397599358994,"endHours":29.54204335292126,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.54204335292126,"endHours":6.54204335292126,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.54204335292126,"endHours":7.54204335292126,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.54204335292126,"endHours":8.54204335292126,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.54204335292126,"endHours":9.54204335292126,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.54204335292126,"endHours":10.54204335292126,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.54204335292126,"endHours":11.54204335292126,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.54204335292126,"endHours":12.54204335292126,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.54204335292126,"endHours":13.54204335292126,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.54204335292126,"endHours":14.54204335292126,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.54204335292126,"endHours":15.54204335292126,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.54204335292126,"endHours":16.54204335292126,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.54204335292126,"endHours":17.54204335292126,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.54204335292126,"endHours":18.54204335292126,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.54204335292126,"endHours":19.54204335292126,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.54204335292126,"endHours":20.54204335292126,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.54204335292126,"endHours":21.54204335292126,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.54204335292126,"endHours":22.54204335292126,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.54204335292126,"endHours":23.54204335292126,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.54204335292126,"endHours":24.54204335292126,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.54204335292126,"endHours":25.54204335292126,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.54204335292126,"endHours":26.54204335292126,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.54204335292126,"endHours":27.54204335292126,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.54204335292126,"endHours":28.54204335292126,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.54204335292126,"endHours":29.54204335292126,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.039151581900256,"eotMinutes":3.7375796796685163,"ayanamsa":23.8301}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pratipada · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"narada-jayanti","name":"Bhagavān Nārada Jayantī","name_sanskrit":"भगवान् नारद जयन्ती","tradition":"Vaishnava","associated_deity":"Devarṣi Nārada (ādi-bhakta · Vyāsa's guru)","significance":"Manifestation of Devarṣi Nārada — ādi-bhakta and tri-loka-saṅcāri who instructed Vyāsa to compose Śrīmad Bhāgavata. Without Nārada, no Bhāgavata; without Bhāgavata, no Krishna-tattva-pratiṣṭhā in Kali Yuga. Falls on Vaiśākha Kṛṣṇa Pratipadā (day after Buddha Pūrṇimā).","vrata":true,"primary_observance":"Recitation of Nārada-Bhakti-Sūtra; meditation on Krishna as taught by Nārada to Vyāsa (Bhāgavata 1.5)","detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Vaiśākha"},"precedence":1,"sources":["Bhāgavata Purāṇa 1.5-6 (Nārada-Vyāsa-saṁvāda)","Nārada-Bhakti-Sūtra"]},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mathura"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 12, 1998 CE · Mathurā · Vidhyamitra","description":"May 12, 1998 CE for Mathurā: Kṛṣṇa Pratipada, sūryodaya 05:33, sūryāsta 18:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1998-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1998-05-12","sa":"https://sa.vidhyamitra.com/city/mathura/1998-05-12","hi":"https://hi.vidhyamitra.com/city/mathura/1998-05-12","x-default":"https://vidhyamitra.com/city/mathura/1998-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T19:30:14.819Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-14T19:30:14.819Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T19:30:14.819Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}