{"id":"vidhyamitra:city-day:ayodhya:2131-10-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2131-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-10-04","date_display":"October 4, 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":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499667.770833,"kali_year":5233,"ahargana":1911202.2708,"sun":{"sidereal_longitude":163.6656,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":308.1054,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.4398,"elapsed_within_tithi_degrees":0.4398},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.1054,"elapsed_within_degrees":1.4388},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.771},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":2131,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499667.770833,"ahargana":1911202.2708,"kali_year":5233,"ayanamsa_lahiri":25.6935,"grahas":{"sun":{"sidereal_longitude":164.73106699999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":308.08346700000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-3.583},"mars":{"sidereal_longitude":19.568966999999986,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":184.553267,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":63.142867000000024,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":184.73646699999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":197.11326699999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":75.3063,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":255.3063,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva 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":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499667.770833,"kali_year":5233,"ahargana":1911202.2708,"sun":{"sidereal_longitude":163.6656,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":308.1054,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.4398,"elapsed_within_tithi_degrees":0.4398},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.1054,"elapsed_within_degrees":1.4388},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.771},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.583,"elongation":144.44},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.583,"opposition_distance":35.56}},"eclipse_window_40days":[]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:54","sunsetLocal":"17:44","solarNoonLocal":"11:49","dayLengthHours":11.846316277358074,"dayLengthDisplay":"11 Hours 50 Mins 47 Secs","nightLengthDisplay":"12 Hours 09 Mins 13 Secs","moonriseLocal":"15:41","moonsetLocal":"03:04","rahuKala":{"name":"Rāhu Kāla","start":"13:18","end":"14:47","startHours":13.298905148208256,"endHours":14.779694682878016,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:54","end":"07:23","startHours":5.894957474859459,"endHours":7.375747009529219,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:51","end":"10:20","startHours":8.856536544198978,"endHours":10.337326078868738,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:03","startHours":8.659097939576343,"endHours":9.053975148821612,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:23","end":"06:42","startHours":6.388553986416046,"endHours":6.704455753812261,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:25","end":"12:13","startHours":11.423238404293228,"endHours":12.212992822783766,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:06","startHours":4.315448637878383,"endHours":5.105203056368921,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:54","end":"05:54","startHours":4.907764451746286,"endHours":5.894957474859459,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:35","startHours":13.792501659764842,"endHours":14.58225607825538,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:32","end":"17:56","startHours":17.541273752217535,"endHours":17.941273752217533,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:44","end":"18:14","startHours":17.741273752217534,"endHours":18.23487026377412,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:29","end":"19:14","startHours":17.491273752217534,"endHours":19.241273752217534,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:25","end":"00:13","startHours":23.423238404293226,"endHours":24.212992822783765,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:54","end":"07:23","startHours":5.894957474859459,"endHours":7.375747009529219,"quality":"auspicious"},{"name":"Roga","start":"07:23","end":"08:51","startHours":7.375747009529219,"endHours":8.856536544198978,"quality":"inauspicious"},{"name":"Udveg","start":"08:51","end":"10:20","startHours":8.856536544198978,"endHours":10.337326078868738,"quality":"inauspicious"},{"name":"Chala","start":"10:20","end":"11:49","startHours":10.337326078868738,"endHours":11.818115613538495,"quality":"neutral"},{"name":"Labha","start":"11:49","end":"13:18","startHours":11.818115613538495,"endHours":13.298905148208256,"quality":"auspicious"},{"name":"Amṛta","start":"13:18","end":"14:47","startHours":13.298905148208256,"endHours":14.779694682878016,"quality":"auspicious"},{"name":"Kāla","start":"14:47","end":"16:16","startHours":14.779694682878016,"endHours":16.260484217547774,"quality":"inauspicious"},{"name":"Śubha","start":"16:16","end":"17:44","startHours":16.260484217547774,"endHours":17.741273752217534,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:44","end":"19:16","startHours":17.741273752217534,"endHours":19.260484217547774,"quality":"auspicious"},{"name":"Kāla","start":"19:16","end":"20:47","startHours":19.260484217547774,"endHours":20.779694682878016,"quality":"inauspicious"},{"name":"Śubha","start":"20:47","end":"22:18","startHours":20.779694682878016,"endHours":22.298905148208256,"quality":"auspicious"},{"name":"Roga","start":"22:18","end":"23:49","startHours":22.298905148208256,"endHours":23.818115613538495,"quality":"inauspicious"},{"name":"Udveg","start":"23:49","end":"01:20","startHours":23.818115613538495,"endHours":25.337326078868738,"quality":"inauspicious"},{"name":"Chala","start":"01:20","end":"02:51","startHours":25.337326078868738,"endHours":26.856536544198978,"quality":"neutral"},{"name":"Labha","start":"02:51","end":"04:23","startHours":26.856536544198978,"endHours":28.37574700952922,"quality":"auspicious"},{"name":"Amṛta","start":"04:23","end":"05:54","startHours":28.37574700952922,"endHours":29.89495747485946,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.894957474859459,"endHours":6.894957474859459,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.894957474859459,"endHours":7.894957474859459,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.894957474859459,"endHours":8.89495747485946,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.89495747485946,"endHours":9.89495747485946,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.89495747485946,"endHours":10.89495747485946,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.89495747485946,"endHours":11.89495747485946,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.89495747485946,"endHours":12.89495747485946,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.89495747485946,"endHours":13.89495747485946,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.89495747485946,"endHours":14.89495747485946,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.89495747485946,"endHours":15.89495747485946,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.89495747485946,"endHours":16.89495747485946,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.89495747485946,"endHours":17.89495747485946,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.89495747485946,"endHours":18.89495747485946,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.89495747485946,"endHours":19.89495747485946,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.89495747485946,"endHours":20.89495747485946,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.89495747485946,"endHours":21.89495747485946,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.89495747485946,"endHours":22.89495747485946,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.89495747485946,"endHours":23.89495747485946,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.89495747485946,"endHours":24.89495747485946,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.89495747485946,"endHours":25.89495747485946,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.89495747485946,"endHours":26.89495747485946,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.89495747485946,"endHours":27.89495747485946,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.89495747485946,"endHours":28.89495747485946,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.89495747485946,"endHours":29.89495747485946,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-4.126918665004611,"eotMinutes":12.09706318769023,"ayanamsa":25.6935}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Trayodaśī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"validity":{"eternal":false,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 4, 2131 CE · Ayodhyā · Vidhyamitra","description":"October 4, 2131 CE for Ayodhyā: Śukla Trayodaśī, sūryodaya 05:54, sūryāsta 17:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2131-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2131-10-04","sa":"https://sa.vidhyamitra.com/city/ayodhya/2131-10-04","hi":"https://hi.vidhyamitra.com/city/ayodhya/2131-10-04","x-default":"https://vidhyamitra.com/city/ayodhya/2131-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-17T18:25:45.338Z","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":"2026-05-17T18:25:45.338Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-17T18:25:45.338Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}