{"id":"vidhyamitra:city-day:lucknow:2131-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/lucknow/2131-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-01-13","date_display":"January 13, 2131 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":2131,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499403.770833,"kali_year":5232,"ahargana":1910938.2708,"sun":{"sidereal_longitude":266.2119,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":81.8684,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.6565,"elapsed_within_tithi_degrees":7.6565},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":81.8684,"elapsed_within_degrees":1.8684},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.0803},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2131,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499403.770833,"ahargana":1910938.2708,"kali_year":5232,"ayanamsa_lahiri":25.6834,"grahas":{"sun":{"sidereal_longitude":266.66865299999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":80.59775300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false,"latitude":-0.581},"mars":{"sidereal_longitude":223.57035299999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":256.051053,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":18.361852999999996,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":221.69395299999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":197.41275299999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":89.2943,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":269.2943,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2131,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499403.770833,"kali_year":5232,"ahargana":1910938.2708,"sun":{"sidereal_longitude":266.2119,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":81.8684,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.6565,"elapsed_within_tithi_degrees":7.6565},"nakshatra":{"number":7,"name":"Punarvasu","pada":1,"moon_longitude":81.8684,"elapsed_within_degrees":1.8684},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":348.0803},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.581,"elongation":175.657},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.581,"opposition_distance":4.343}},"eclipse_window_40days":[{"offset_days":16,"type":"solar","occurs":true,"moon_latitude":-0.919,"elongation":2.391}]},"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"lucknow","name":"Lucknow, Uttar Pradesh","lat":26.8467,"lon":80.9462,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"06:57","sunsetLocal":"17:33","solarNoonLocal":"12:15","dayLengthHours":10.596342695343006,"dayLengthDisplay":"10 Hours 35 Mins 47 Secs","nightLengthDisplay":"13 Hours 24 Mins 13 Secs","moonriseLocal":"16:59","moonsetLocal":"06:42","rahuKala":{"name":"Rāhu Kāla","start":"09:36","end":"10:55","startHours":9.598433184353809,"endHours":10.922976021271685,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:34","end":"14:54","startHours":13.572061695107436,"endHours":14.896604532025313,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:57","end":"08:16","startHours":6.9493475105180575,"endHours":8.273890347435934,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:47","startHours":9.42182747276476,"endHours":9.77503889594286,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:23","end":"07:40","startHours":7.390861789490683,"endHours":7.673430928033163,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:36","startHours":11.894307435011461,"endHours":12.600730281367662,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:15","startHours":5.536501817805656,"endHours":6.242924664161857,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:04","end":"06:57","startHours":6.066318952572807,"endHours":6.9493475105180575,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:43","startHours":14.013575974080062,"endHours":14.719998820436263,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.345690205861064,"endHours":17.745690205861063,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"17:59","startHours":17.545690205861064,"endHours":17.98720448483369,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.295690205861064,"endHours":19.045690205861064,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:36","startHours":23.894307435011463,"endHours":24.60073028136766,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:57","end":"08:16","startHours":6.9493475105180575,"endHours":8.273890347435934,"quality":"inauspicious"},{"name":"Śubha","start":"08:16","end":"09:36","startHours":8.273890347435934,"endHours":9.598433184353809,"quality":"auspicious"},{"name":"Roga","start":"09:36","end":"10:55","startHours":9.598433184353809,"endHours":10.922976021271685,"quality":"inauspicious"},{"name":"Udveg","start":"10:55","end":"12:15","startHours":10.922976021271685,"endHours":12.247518858189562,"quality":"inauspicious"},{"name":"Chala","start":"12:15","end":"13:34","startHours":12.247518858189562,"endHours":13.572061695107436,"quality":"neutral"},{"name":"Labha","start":"13:34","end":"14:54","startHours":13.572061695107436,"endHours":14.896604532025313,"quality":"auspicious"},{"name":"Amṛta","start":"14:54","end":"16:13","startHours":14.896604532025313,"endHours":16.221147368943186,"quality":"auspicious"},{"name":"Kāla","start":"16:13","end":"17:33","startHours":16.221147368943186,"endHours":17.545690205861064,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:33","end":"19:13","startHours":17.545690205861064,"endHours":19.22114736894319,"quality":"auspicious"},{"name":"Amṛta","start":"19:13","end":"20:54","startHours":19.22114736894319,"endHours":20.89660453202531,"quality":"auspicious"},{"name":"Kāla","start":"20:54","end":"22:34","startHours":20.89660453202531,"endHours":22.572061695107436,"quality":"inauspicious"},{"name":"Śubha","start":"22:34","end":"00:15","startHours":22.572061695107436,"endHours":24.24751885818956,"quality":"auspicious"},{"name":"Roga","start":"00:15","end":"01:55","startHours":24.24751885818956,"endHours":25.922976021271687,"quality":"inauspicious"},{"name":"Udveg","start":"01:55","end":"03:36","startHours":25.922976021271687,"endHours":27.59843318435381,"quality":"inauspicious"},{"name":"Chala","start":"03:36","end":"05:16","startHours":27.59843318435381,"endHours":29.273890347435934,"quality":"neutral"},{"name":"Labha","start":"05:16","end":"06:57","startHours":29.273890347435934,"endHours":30.94934751051806,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:57","end":"07:57","startHours":6.9493475105180575,"endHours":7.9493475105180575,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:57","end":"08:57","startHours":7.9493475105180575,"endHours":8.949347510518058,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:57","end":"09:57","startHours":8.949347510518058,"endHours":9.949347510518058,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:57","end":"10:57","startHours":9.949347510518058,"endHours":10.949347510518058,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:57","end":"11:57","startHours":10.949347510518058,"endHours":11.949347510518058,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:57","end":"12:57","startHours":11.949347510518058,"endHours":12.949347510518058,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:57","end":"13:57","startHours":12.949347510518058,"endHours":13.949347510518058,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:57","end":"14:57","startHours":13.949347510518058,"endHours":14.949347510518058,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:57","end":"15:57","startHours":14.949347510518058,"endHours":15.949347510518058,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:57","end":"16:57","startHours":15.949347510518058,"endHours":16.94934751051806,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:57","end":"17:57","startHours":16.94934751051806,"endHours":17.94934751051806,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:57","end":"18:57","startHours":17.94934751051806,"endHours":18.94934751051806,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:57","end":"19:57","startHours":18.94934751051806,"endHours":19.94934751051806,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:57","end":"20:57","startHours":19.94934751051806,"endHours":20.94934751051806,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:57","end":"21:57","startHours":20.94934751051806,"endHours":21.94934751051806,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:57","end":"22:57","startHours":21.94934751051806,"endHours":22.94934751051806,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:57","end":"23:57","startHours":22.94934751051806,"endHours":23.94934751051806,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:57","end":"00:57","startHours":23.94934751051806,"endHours":24.94934751051806,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:57","end":"01:57","startHours":24.94934751051806,"endHours":25.94934751051806,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:57","end":"02:57","startHours":25.94934751051806,"endHours":26.94934751051806,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:57","end":"03:57","startHours":26.94934751051806,"endHours":27.94934751051806,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:57","end":"04:57","startHours":27.94934751051806,"endHours":28.94934751051806,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:57","end":"05:57","startHours":28.94934751051806,"endHours":29.94934751051806,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:57","end":"06:57","startHours":29.94934751051806,"endHours":30.94934751051806,"planetary_lord":"Mercury"}],"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":"East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.583000505250013,"eotMinutes":-8.635931491373626,"ayanamsa":25.6834}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pūrṇimā · Vikram 2188 Krodhi · Śaka 2053 Khara"},"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}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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":"lucknow"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 13, 2131 CE · Lucknow, Uttar Pradesh · Vidhyamitra","description":"January 13, 2131 CE for Lucknow, Uttar Pradesh: Śukla Pūrṇimā, sūryodaya 06:57, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/lucknow/2131-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/lucknow/2131-01-13","sa":"https://sa.vidhyamitra.com/city/lucknow/2131-01-13","hi":"https://hi.vidhyamitra.com/city/lucknow/2131-01-13","x-default":"https://vidhyamitra.com/city/lucknow/2131-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T14:26:16.206Z","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":"2026-06-01T14:26:16.206Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T14:26:16.206Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}