{"id":"vidhyamitra:city-day:ayodhya:1664-04-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1664-04-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1664-04-08","date_display":"April 8, 1664 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":1664,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328921.770833,"kali_year":4765,"ahargana":1740456.2708,"sun":{"sidereal_longitude":0.624,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":149.9892,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":149.3651,"elapsed_within_tithi_degrees":5.3651},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.9892,"elapsed_within_degrees":3.3225},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.6132},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1664,"month":4,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2328921.770833,"ahargana":1740456.2708,"kali_year":4765,"ayanamsa_lahiri":19.1631,"grahas":{"sun":{"sidereal_longitude":359.712519,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":147.71821899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":2.0927},"mars":{"sidereal_longitude":121.19421899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":336.980419,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":272.1041190000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":325.161419,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":253.58321899999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":122.2511,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.2511,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"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":1664,"month":4,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328921.770833,"kali_year":4765,"ahargana":1740456.2708,"sun":{"sidereal_longitude":0.624,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":149.9892,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":149.3651,"elapsed_within_tithi_degrees":5.3651},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.9892,"elapsed_within_degrees":3.3225},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.6132},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.093,"elongation":149.365},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.093,"opposition_distance":30.635}},"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":"05:45","sunsetLocal":"18:22","solarNoonLocal":"12:03","dayLengthHours":12.626854843651417,"dayLengthDisplay":"12 Hours 37 Mins 37 Secs","nightLengthDisplay":"11 Hours 22 Mins 23 Secs","moonriseLocal":"15:42","moonsetLocal":"04:09","rahuKala":{"name":"Rāhu Kāla","start":"15:13","end":"16:47","startHours":15.212947887190687,"endHours":16.791304742647114,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:54","end":"10:29","startHours":8.899520465364978,"endHours":10.477877320821406,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:03","end":"13:38","startHours":12.056234176277833,"endHours":13.63459103173426,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:07","startHours":8.689072884637454,"endHours":9.1099680460925,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:36","startHours":6.268925706270933,"endHours":6.60564183543497,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:29","startHours":11.635339014822787,"endHours":12.47712933773288,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:04","end":"04:54","startHours":4.059226108631934,"endHours":4.901016431542029,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:45","startHours":4.690568850814506,"endHours":5.742806754452124,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:00","startHours":14.160709983553069,"endHours":15.002500306463164,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:10","end":"18:34","startHours":18.16966159810354,"endHours":18.56966159810354,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:22","end":"18:54","startHours":18.36966159810354,"endHours":18.89578054992235,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:07","end":"19:52","startHours":18.11966159810354,"endHours":19.86966159810354,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:29","startHours":23.635339014822787,"endHours":24.47712933773288,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:45","end":"07:19","startHours":5.742806754452124,"endHours":7.321163609908551,"quality":"inauspicious"},{"name":"Udveg","start":"07:19","end":"08:54","startHours":7.321163609908551,"endHours":8.899520465364978,"quality":"inauspicious"},{"name":"Chala","start":"08:54","end":"10:29","startHours":8.899520465364978,"endHours":10.477877320821406,"quality":"neutral"},{"name":"Labha","start":"10:29","end":"12:03","startHours":10.477877320821406,"endHours":12.056234176277833,"quality":"auspicious"},{"name":"Amṛta","start":"12:03","end":"13:38","startHours":12.056234176277833,"endHours":13.63459103173426,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:13","startHours":13.63459103173426,"endHours":15.212947887190687,"quality":"inauspicious"},{"name":"Śubha","start":"15:13","end":"16:47","startHours":15.212947887190687,"endHours":16.791304742647114,"quality":"auspicious"},{"name":"Roga","start":"16:47","end":"18:22","startHours":16.791304742647114,"endHours":18.36966159810354,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:22","end":"19:47","startHours":18.36966159810354,"endHours":19.791304742647114,"quality":"inauspicious"},{"name":"Śubha","start":"19:47","end":"21:13","startHours":19.791304742647114,"endHours":21.212947887190687,"quality":"auspicious"},{"name":"Roga","start":"21:13","end":"22:38","startHours":21.212947887190687,"endHours":22.63459103173426,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:03","startHours":22.63459103173426,"endHours":24.056234176277833,"quality":"inauspicious"},{"name":"Chala","start":"00:03","end":"01:29","startHours":24.056234176277833,"endHours":25.477877320821406,"quality":"neutral"},{"name":"Labha","start":"01:29","end":"02:54","startHours":25.477877320821406,"endHours":26.89952046536498,"quality":"auspicious"},{"name":"Amṛta","start":"02:54","end":"04:19","startHours":26.89952046536498,"endHours":28.321163609908552,"quality":"auspicious"},{"name":"Kāla","start":"04:19","end":"05:45","startHours":28.321163609908552,"endHours":29.742806754452126,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:45","end":"06:45","startHours":5.742806754452124,"endHours":6.742806754452124,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:45","end":"07:45","startHours":6.742806754452124,"endHours":7.742806754452124,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:45","end":"08:45","startHours":7.742806754452124,"endHours":8.742806754452124,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:45","end":"09:45","startHours":8.742806754452124,"endHours":9.742806754452124,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:45","end":"10:45","startHours":9.742806754452124,"endHours":10.742806754452124,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:45","end":"11:45","startHours":10.742806754452124,"endHours":11.742806754452124,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:45","end":"12:45","startHours":11.742806754452124,"endHours":12.742806754452124,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:45","end":"13:45","startHours":12.742806754452124,"endHours":13.742806754452124,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:45","end":"14:45","startHours":13.742806754452124,"endHours":14.742806754452124,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:45","end":"15:45","startHours":14.742806754452124,"endHours":15.742806754452124,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:45","end":"16:45","startHours":15.742806754452124,"endHours":16.742806754452126,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:45","end":"17:45","startHours":16.742806754452126,"endHours":17.742806754452126,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:45","end":"18:45","startHours":17.742806754452126,"endHours":18.742806754452126,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:45","end":"19:45","startHours":18.742806754452126,"endHours":19.742806754452126,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:45","end":"20:45","startHours":19.742806754452126,"endHours":20.742806754452126,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:45","end":"21:45","startHours":20.742806754452126,"endHours":21.742806754452126,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:45","end":"22:45","startHours":21.742806754452126,"endHours":22.742806754452126,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:45","end":"23:45","startHours":22.742806754452126,"endHours":23.742806754452126,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:45","end":"00:45","startHours":23.742806754452126,"endHours":24.742806754452126,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:45","end":"01:45","startHours":24.742806754452126,"endHours":25.742806754452126,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:45","end":"02:45","startHours":25.742806754452126,"endHours":26.742806754452126,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:45","end":"03:45","startHours":26.742806754452126,"endHours":27.742806754452126,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:45","end":"04:45","startHours":27.742806754452126,"endHours":28.742806754452126,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:45","end":"05:45","startHours":28.742806754452126,"endHours":29.742806754452126,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.392878580631504,"eotMinutes":-2.1900505766699547,"ayanamsa":19.1631}},"calendars":{"vikram_samvat":1721,"vikram_samvatsara":"Piṅgala","saka_samvat":1586,"saka_samvatsara":"Krodhi","bengali_samvat":1071,"malayalam_era":840,"nanakshahi_year":195,"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":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 1721 Piṅgala · Śaka 1586 Krodhi"},"festivals":[{"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 April 8, 1664 CE · Ayodhyā · Vidhyamitra","description":"April 8, 1664 CE for Ayodhyā: Śukla Trayodaśī, sūryodaya 05:45, sūryāsta 18:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1664-04-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1664-04-08","sa":"https://sa.vidhyamitra.com/city/ayodhya/1664-04-08","hi":"https://hi.vidhyamitra.com/city/ayodhya/1664-04-08","x-default":"https://vidhyamitra.com/city/ayodhya/1664-04-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T23:13:43.055Z","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":"2026-06-04T23:13:43.055Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T23:13:43.055Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}