{"id":"vidhyamitra:city-day:varanasi:1998-01-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/varanasi/1998-01-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-01-12","date_display":"January 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":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450825.770833,"kali_year":5099,"ahargana":1862360.2708,"sun":{"sidereal_longitude":267.6654,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":80.8971,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.2317,"elapsed_within_tithi_degrees":5.2317},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":80.8971,"elapsed_within_degrees":0.8971},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.5624},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1998,"month":1,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450825.770833,"ahargana":1862360.2708,"kali_year":5099,"ayanamsa_lahiri":23.8255,"grahas":{"sun":{"sidereal_longitude":267.7983899999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":79.52888999999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-3.9831},"mars":{"sidereal_longitude":295.66008999999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":245.32469000000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":300.78049,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":274.92019000000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":350.32199,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":143.1905,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":323.1905,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1998,"month":1,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450825.770833,"kali_year":5099,"ahargana":1862360.2708,"sun":{"sidereal_longitude":267.6654,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":80.8971,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":173.2317,"elapsed_within_tithi_degrees":5.2317},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":80.8971,"elapsed_within_degrees":0.8971},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.5624},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.983,"elongation":173.232},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.983,"opposition_distance":6.768}},"eclipse_window_40days":[]},"city":{"slug":"varanasi","name":"Vārāṇasī (Kāśī)","lat":25.3176,"lon":82.9739,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"varanasi","name":"Vārāṇasī (Kāśī)","lat":25.3176,"lon":82.9739,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:46","sunsetLocal":"17:27","solarNoonLocal":"12:06","dayLengthHours":10.687621909491188,"dayLengthDisplay":"10 Hours 41 Mins 15 Secs","nightLengthDisplay":"13 Hours 18 Mins 45 Secs","moonriseLocal":"16:45","moonsetLocal":"06:22","rahuKala":{"name":"Rāhu Kāla","start":"08:06","end":"09:26","startHours":8.098306494547105,"endHours":9.434259233233503,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:46","end":"12:06","startHours":10.770211971919903,"endHours":12.1061647106063,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:27","end":"14:47","startHours":13.442117449292699,"endHours":14.778070187979097,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:37","startHours":9.25613220140865,"endHours":9.612386265058356,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:30","startHours":7.207671335422838,"endHours":7.492674586342603,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:28","startHours":11.749910646956593,"endHours":12.462418774256005,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:20","end":"06:03","startHours":5.337337501261881,"endHours":6.049845628561293,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:52","end":"06:46","startHours":5.87171859673644,"endHours":6.762353755860706,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:36","startHours":13.887435028854831,"endHours":14.599943156154245,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:15","end":"17:39","startHours":17.249975665351894,"endHours":17.649975665351892,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:27","end":"17:54","startHours":17.449975665351893,"endHours":17.895293244914026,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:12","end":"18:57","startHours":17.199975665351893,"endHours":18.949975665351893,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:28","startHours":23.749910646956593,"endHours":24.462418774256008,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:46","end":"08:06","startHours":6.762353755860706,"endHours":8.098306494547105,"quality":"auspicious"},{"name":"Kāla","start":"08:06","end":"09:26","startHours":8.098306494547105,"endHours":9.434259233233503,"quality":"inauspicious"},{"name":"Śubha","start":"09:26","end":"10:46","startHours":9.434259233233503,"endHours":10.770211971919903,"quality":"auspicious"},{"name":"Roga","start":"10:46","end":"12:06","startHours":10.770211971919903,"endHours":12.1061647106063,"quality":"inauspicious"},{"name":"Udveg","start":"12:06","end":"13:27","startHours":12.1061647106063,"endHours":13.442117449292699,"quality":"inauspicious"},{"name":"Chala","start":"13:27","end":"14:47","startHours":13.442117449292699,"endHours":14.778070187979097,"quality":"neutral"},{"name":"Labha","start":"14:47","end":"16:07","startHours":14.778070187979097,"endHours":16.114022926665495,"quality":"auspicious"},{"name":"Amṛta","start":"16:07","end":"17:27","startHours":16.114022926665495,"endHours":17.449975665351893,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:27","end":"19:07","startHours":17.449975665351893,"endHours":19.114022926665495,"quality":"neutral"},{"name":"Labha","start":"19:07","end":"20:47","startHours":19.114022926665495,"endHours":20.778070187979097,"quality":"auspicious"},{"name":"Amṛta","start":"20:47","end":"22:27","startHours":20.778070187979097,"endHours":22.442117449292695,"quality":"auspicious"},{"name":"Kāla","start":"22:27","end":"00:06","startHours":22.442117449292695,"endHours":24.1061647106063,"quality":"inauspicious"},{"name":"Śubha","start":"00:06","end":"01:46","startHours":24.1061647106063,"endHours":25.7702119719199,"quality":"auspicious"},{"name":"Roga","start":"01:46","end":"03:26","startHours":25.7702119719199,"endHours":27.4342592332335,"quality":"inauspicious"},{"name":"Udveg","start":"03:26","end":"05:06","startHours":27.4342592332335,"endHours":29.098306494547103,"quality":"inauspicious"},{"name":"Chala","start":"05:06","end":"06:46","startHours":29.098306494547103,"endHours":30.762353755860705,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.762353755860706,"endHours":7.762353755860706,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.762353755860706,"endHours":8.762353755860705,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.762353755860705,"endHours":9.762353755860705,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.762353755860705,"endHours":10.762353755860705,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.762353755860705,"endHours":11.762353755860705,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.762353755860705,"endHours":12.762353755860705,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.762353755860705,"endHours":13.762353755860705,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.762353755860705,"endHours":14.762353755860705,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.762353755860705,"endHours":15.762353755860705,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.762353755860705,"endHours":16.762353755860705,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.762353755860705,"endHours":17.762353755860705,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.762353755860705,"endHours":18.762353755860705,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.762353755860705,"endHours":19.762353755860705,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.762353755860705,"endHours":20.762353755860705,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.762353755860705,"endHours":21.762353755860705,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.762353755860705,"endHours":22.762353755860705,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.762353755860705,"endHours":23.762353755860705,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.762353755860705,"endHours":24.762353755860705,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.762353755860705,"endHours":25.762353755860705,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.762353755860705,"endHours":26.762353755860705,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.762353755860705,"endHours":27.762353755860705,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.762353755860705,"endHours":28.762353755860705,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.762353755860705,"endHours":29.762353755860705,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.762353755860705,"endHours":30.762353755860705,"planetary_lord":"Venus"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-21.699657849652553,"eotMinutes":-8.265482636377905,"ayanamsa":23.8255}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pūrṇimā · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"paush-purnima","name":"Pauṣa Pūrṇimā (Śākambharī Devī Jayantī)","name_sanskrit":"पौष पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Devī Śākambharī","significance":"Manifestation of Devī Śākambharī (vegetation-mother).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":3},{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"varanasi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 12, 1998 CE · Vārāṇasī (Kāśī) · Vidhyamitra","description":"January 12, 1998 CE for Vārāṇasī (Kāśī): Śukla Pūrṇimā, sūryodaya 06:46, sūryāsta 17:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/varanasi/1998-01-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/varanasi/1998-01-12","sa":"https://sa.vidhyamitra.com/city/varanasi/1998-01-12","hi":"https://hi.vidhyamitra.com/city/varanasi/1998-01-12","x-default":"https://vidhyamitra.com/city/varanasi/1998-01-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T13:44:23.276Z","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":"2026-05-14T13:44:23.276Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T13:44:23.276Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}