{"id":"vidhyamitra:city-day:bareilly:1980-01-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/bareilly/1980-01-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-01-31","date_display":"January 31, 1980 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":1980,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444269.770833,"kali_year":5081,"ahargana":1855804.2708,"sun":{"sidereal_longitude":286.7933,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":95.5993,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":168.806,"elapsed_within_tithi_degrees":0.806},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.5993,"elapsed_within_degrees":2.266},"yoga":{"number":2,"name":"Prīti","sum_longitude":22.3926},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":1980,"month":1,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444269.770833,"ahargana":1855804.2708,"kali_year":5081,"ayanamsa_lahiri":23.5747,"grahas":{"sun":{"sidereal_longitude":286.7396779999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":94.787778,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":-2.5767},"mars":{"sidereal_longitude":140.623578,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":293.845378,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":134.50117799999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":324.775578,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":152.75597800000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":130.559,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":310.559,"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":1980,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444269.770833,"kali_year":5081,"ahargana":1855804.2708,"sun":{"sidereal_longitude":286.7933,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":95.5993,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":168.806,"elapsed_within_tithi_degrees":0.806},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.5993,"elapsed_within_degrees":2.266},"yoga":{"number":2,"name":"Prīti","sum_longitude":22.3926},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.577,"elongation":168.806},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.577,"opposition_distance":11.194}},"eclipse_window_40days":[]},"city":{"slug":"bareilly","name":"Bareilly, Uttar Pradesh","lat":28.367,"lon":79.4304,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"bareilly","name":"Bareilly, Uttar Pradesh","lat":28.367,"lon":79.4304,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"07:01","sunsetLocal":"17:50","solarNoonLocal":"12:26","dayLengthHours":10.814894955861895,"dayLengthDisplay":"10 Hours 48 Mins 54 Secs","nightLengthDisplay":"13 Hours 11 Mins 06 Secs","moonriseLocal":"16:49","moonsetLocal":"06:27","rahuKala":{"name":"Rāhu Kāla","start":"13:47","end":"15:08","startHours":13.781995011846773,"endHours":15.13385688132951,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:01","end":"08:22","startHours":7.022685664433088,"endHours":8.374547533915825,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:44","end":"11:05","startHours":9.726409403398563,"endHours":11.078271272881299,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:54","startHours":9.546161154134197,"endHours":9.906657652662927,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:46","startHours":7.473306287594,"endHours":7.761703486416984,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:47","startHours":12.069636643835304,"endHours":12.790629640892766,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:35","end":"06:18","startHours":5.580699670318169,"endHours":6.301692667375629,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:01","startHours":6.121444418111263,"endHours":7.022685664433088,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"14:57","startHours":14.232615635007685,"endHours":14.953608632065144,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:38","end":"18:02","startHours":17.637580620294983,"endHours":18.03758062029498,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:50","end":"18:17","startHours":17.837580620294982,"endHours":18.288201243455894,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:35","end":"19:20","startHours":17.587580620294982,"endHours":19.337580620294982,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:47","startHours":24.069636643835306,"endHours":24.790629640892764,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:01","end":"08:22","startHours":7.022685664433088,"endHours":8.374547533915825,"quality":"auspicious"},{"name":"Roga","start":"08:22","end":"09:44","startHours":8.374547533915825,"endHours":9.726409403398563,"quality":"inauspicious"},{"name":"Udveg","start":"09:44","end":"11:05","startHours":9.726409403398563,"endHours":11.078271272881299,"quality":"inauspicious"},{"name":"Chala","start":"11:05","end":"12:26","startHours":11.078271272881299,"endHours":12.430133142364035,"quality":"neutral"},{"name":"Labha","start":"12:26","end":"13:47","startHours":12.430133142364035,"endHours":13.781995011846773,"quality":"auspicious"},{"name":"Amṛta","start":"13:47","end":"15:08","startHours":13.781995011846773,"endHours":15.13385688132951,"quality":"auspicious"},{"name":"Kāla","start":"15:08","end":"16:29","startHours":15.13385688132951,"endHours":16.485718750812246,"quality":"inauspicious"},{"name":"Śubha","start":"16:29","end":"17:50","startHours":16.485718750812246,"endHours":17.837580620294982,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:50","end":"19:29","startHours":17.837580620294982,"endHours":19.485718750812246,"quality":"auspicious"},{"name":"Kāla","start":"19:29","end":"21:08","startHours":19.485718750812246,"endHours":21.133856881329507,"quality":"inauspicious"},{"name":"Śubha","start":"21:08","end":"22:47","startHours":21.133856881329507,"endHours":22.78199501184677,"quality":"auspicious"},{"name":"Roga","start":"22:47","end":"00:26","startHours":22.78199501184677,"endHours":24.430133142364035,"quality":"inauspicious"},{"name":"Udveg","start":"00:26","end":"02:05","startHours":24.430133142364035,"endHours":26.0782712728813,"quality":"inauspicious"},{"name":"Chala","start":"02:05","end":"03:44","startHours":26.0782712728813,"endHours":27.726409403398563,"quality":"neutral"},{"name":"Labha","start":"03:44","end":"05:22","startHours":27.726409403398563,"endHours":29.374547533915823,"quality":"auspicious"},{"name":"Amṛta","start":"05:22","end":"07:01","startHours":29.374547533915823,"endHours":31.022685664433087,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.022685664433088,"endHours":8.022685664433087,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.022685664433087,"endHours":9.022685664433087,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.022685664433087,"endHours":10.022685664433087,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.022685664433087,"endHours":11.022685664433087,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.022685664433087,"endHours":12.022685664433087,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.022685664433087,"endHours":13.022685664433087,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.022685664433087,"endHours":14.022685664433087,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.022685664433087,"endHours":15.022685664433087,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.022685664433087,"endHours":16.022685664433087,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.022685664433087,"endHours":17.022685664433087,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.022685664433087,"endHours":18.022685664433087,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.022685664433087,"endHours":19.022685664433087,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.022685664433087,"endHours":20.022685664433087,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.022685664433087,"endHours":21.022685664433087,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.022685664433087,"endHours":22.022685664433087,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.022685664433087,"endHours":23.022685664433087,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.022685664433087,"endHours":24.022685664433087,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.022685664433087,"endHours":25.022685664433087,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.022685664433087,"endHours":26.022685664433087,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.022685664433087,"endHours":27.022685664433087,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.022685664433087,"endHours":28.022685664433087,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.022685664433087,"endHours":29.022685664433087,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.022685664433087,"endHours":30.022685664433087,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.022685664433087,"endHours":31.022685664433087,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.654316865193472,"eotMinutes":-13.52958854184206,"ayanamsa":23.5747}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[{"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":"-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":"bareilly"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 31, 1980 CE · Bareilly, Uttar Pradesh · Vidhyamitra","description":"January 31, 1980 CE for Bareilly, Uttar Pradesh: Śukla Pūrṇimā, sūryodaya 07:01, sūryāsta 17:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/bareilly/1980-01-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/bareilly/1980-01-31","sa":"https://sa.vidhyamitra.com/city/bareilly/1980-01-31","hi":"https://hi.vidhyamitra.com/city/bareilly/1980-01-31","x-default":"https://vidhyamitra.com/city/bareilly/1980-01-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T01:13:17.834Z","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":"2026-05-19T01:13:17.834Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T01:13:17.834Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}