{"id":"vidhyamitra:city-day:ayodhya:1780-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1780-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1780-04-13","date_display":"April 13, 1780 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":1780,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371294.770833,"kali_year":4882,"ahargana":1782829.2708,"sun":{"sidereal_longitude":3.534,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":105.1203,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.5863,"elapsed_within_tithi_degrees":5.5863},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":105.1203,"elapsed_within_degrees":11.7869},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.6543},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":1780,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2371294.770833,"ahargana":1782829.2708,"kali_year":4882,"ayanamsa_lahiri":20.7837,"grahas":{"sun":{"sidereal_longitude":2.901759000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":102.189659,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":4.1716},"mars":{"sidereal_longitude":33.67715900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":19.550759000000028,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":183.75845900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":45.80435899999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":230.01915899999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":37.1257,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":217.1257,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":1780,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2371294.770833,"kali_year":4882,"ahargana":1782829.2708,"sun":{"sidereal_longitude":3.534,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":105.1203,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.5863,"elapsed_within_tithi_degrees":5.5863},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":105.1203,"elapsed_within_degrees":11.7869},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.6543},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.172,"elongation":101.586},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.172,"opposition_distance":78.414}},"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":"05:39","sunsetLocal":"18:25","solarNoonLocal":"12:02","dayLengthHours":12.751821895006982,"dayLengthDisplay":"12 Hours 45 Mins 07 Secs","nightLengthDisplay":"11 Hours 14 Mins 53 Secs","moonriseLocal":"11:55","moonsetLocal":"01:23","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:13","startHours":13.626541250704282,"endHours":15.220518987580153,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:39","end":"07:15","startHours":5.656652566324917,"endHours":7.25063030320079,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:51","end":"10:26","startHours":8.844608040076663,"endHours":10.438585776952536,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.632077675159879,"endHours":9.057138404993445,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:11","end":"06:32","startHours":6.187978478616874,"endHours":6.528027062483727,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:27","startHours":11.60750278399484,"endHours":12.457624243661973,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:57","end":"04:48","startHours":3.956409646990653,"endHours":4.8065311066577845,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:36","end":"05:39","startHours":4.594000741741002,"endHours":5.656652566324917,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"15:00","startHours":14.157867162996238,"endHours":15.00798862266337,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:13","end":"18:37","startHours":18.2084744613319,"endHours":18.608474461331898,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:25","end":"18:56","startHours":18.4084744613319,"endHours":18.939800373623857,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:10","end":"19:55","startHours":18.1584744613319,"endHours":19.9084744613319,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:27","startHours":23.607502783994843,"endHours":24.45762424366197,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:39","end":"07:15","startHours":5.656652566324917,"endHours":7.25063030320079,"quality":"auspicious"},{"name":"Roga","start":"07:15","end":"08:51","startHours":7.25063030320079,"endHours":8.844608040076663,"quality":"inauspicious"},{"name":"Udveg","start":"08:51","end":"10:26","startHours":8.844608040076663,"endHours":10.438585776952536,"quality":"inauspicious"},{"name":"Chala","start":"10:26","end":"12:02","startHours":10.438585776952536,"endHours":12.032563513828407,"quality":"neutral"},{"name":"Labha","start":"12:02","end":"13:38","startHours":12.032563513828407,"endHours":13.626541250704282,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:13","startHours":13.626541250704282,"endHours":15.220518987580153,"quality":"auspicious"},{"name":"Kāla","start":"15:13","end":"16:49","startHours":15.220518987580153,"endHours":16.814496724456028,"quality":"inauspicious"},{"name":"Śubha","start":"16:49","end":"18:25","startHours":16.814496724456028,"endHours":18.4084744613319,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:25","end":"19:49","startHours":18.4084744613319,"endHours":19.814496724456028,"quality":"auspicious"},{"name":"Kāla","start":"19:49","end":"21:13","startHours":19.814496724456028,"endHours":21.220518987580153,"quality":"inauspicious"},{"name":"Śubha","start":"21:13","end":"22:38","startHours":21.220518987580153,"endHours":22.626541250704282,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:02","startHours":22.626541250704282,"endHours":24.032563513828407,"quality":"inauspicious"},{"name":"Udveg","start":"00:02","end":"01:26","startHours":24.032563513828407,"endHours":25.438585776952536,"quality":"inauspicious"},{"name":"Chala","start":"01:26","end":"02:51","startHours":25.438585776952536,"endHours":26.844608040076665,"quality":"neutral"},{"name":"Labha","start":"02:51","end":"04:15","startHours":26.844608040076665,"endHours":28.25063030320079,"quality":"auspicious"},{"name":"Amṛta","start":"04:15","end":"05:39","startHours":28.25063030320079,"endHours":29.656652566324915,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:39","end":"06:39","startHours":5.656652566324917,"endHours":6.656652566324917,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:39","end":"07:39","startHours":6.656652566324917,"endHours":7.656652566324917,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:39","end":"08:39","startHours":7.656652566324917,"endHours":8.656652566324917,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:39","end":"09:39","startHours":8.656652566324917,"endHours":9.656652566324917,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:39","end":"10:39","startHours":9.656652566324917,"endHours":10.656652566324917,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:39","end":"11:39","startHours":10.656652566324917,"endHours":11.656652566324917,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:39","end":"12:39","startHours":11.656652566324917,"endHours":12.656652566324917,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:39","end":"13:39","startHours":12.656652566324917,"endHours":13.656652566324917,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:39","end":"14:39","startHours":13.656652566324917,"endHours":14.656652566324917,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:39","end":"15:39","startHours":14.656652566324917,"endHours":15.656652566324917,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:39","end":"16:39","startHours":15.656652566324917,"endHours":16.656652566324915,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:39","end":"17:39","startHours":16.656652566324915,"endHours":17.656652566324915,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:39","end":"18:39","startHours":17.656652566324915,"endHours":18.656652566324915,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:39","end":"19:39","startHours":18.656652566324915,"endHours":19.656652566324915,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:39","end":"20:39","startHours":19.656652566324915,"endHours":20.656652566324915,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:39","end":"21:39","startHours":20.656652566324915,"endHours":21.656652566324915,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:39","end":"22:39","startHours":21.656652566324915,"endHours":22.656652566324915,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:39","end":"23:39","startHours":22.656652566324915,"endHours":23.656652566324915,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:39","end":"00:39","startHours":23.656652566324915,"endHours":24.656652566324915,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:39","end":"01:39","startHours":24.656652566324915,"endHours":25.656652566324915,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:39","end":"02:39","startHours":25.656652566324915,"endHours":26.656652566324915,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:39","end":"03:39","startHours":26.656652566324915,"endHours":27.656652566324915,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:39","end":"04:39","startHours":27.656652566324915,"endHours":28.656652566324915,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:39","end":"05:39","startHours":28.656652566324915,"endHours":29.656652566324915,"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"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.193850968476655,"eotMinutes":-0.7698108297043191,"ayanamsa":20.7837}},"calendars":{"vikram_samvat":1837,"vikram_samvatsara":"Pramādī","saka_samvat":1702,"saka_samvatsara":"Śārvarī","bengali_samvat":1187,"malayalam_era":956,"nanakshahi_year":311,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 1837 Pramādī · Śaka 1702 Śārvarī"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"related_chart":"rama","historical_anchor":{"event":"Bhagavān Rāma's birth at Ayodhyā","date_julian":"-1626101-04-03","location":"Ayodhyā"},"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"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 April 13, 1780 CE · Ayodhyā · Vidhyamitra","description":"April 13, 1780 CE for Ayodhyā: Śukla Navamī, sūryodaya 05:39, sūryāsta 18:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1780-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1780-04-13","sa":"https://sa.vidhyamitra.com/city/ayodhya/1780-04-13","hi":"https://hi.vidhyamitra.com/city/ayodhya/1780-04-13","x-default":"https://vidhyamitra.com/city/ayodhya/1780-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:08:38.074Z","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":"2026-05-31T09:08:38.074Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:08:38.074Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}