{"id":"vidhyamitra:city-day:ayodhya:1665-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1665-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1665-09-18","date_display":"September 18, 1665 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":1665,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329449.770833,"kali_year":4767,"ahargana":1740984.2708,"sun":{"sidereal_longitude":156.3895,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":264.6104,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":108.2209,"elapsed_within_tithi_degrees":0.2209},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":264.6104,"elapsed_within_degrees":11.2771},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.9999},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1665,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2329449.770833,"ahargana":1740984.2708,"kali_year":4767,"ayanamsa_lahiri":19.1833,"grahas":{"sun":{"sidereal_longitude":156.32354599999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":267.23574600000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false,"latitude":0.7547},"mars":{"sidereal_longitude":111.53004599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":185.658546,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":298.570346,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":115.02414599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":258.288546,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":94.2751,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":274.2751,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1665,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329449.770833,"kali_year":4767,"ahargana":1740984.2708,"sun":{"sidereal_longitude":156.3895,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":264.6104,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":108.2209,"elapsed_within_tithi_degrees":0.2209},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4,"moon_longitude":264.6104,"elapsed_within_degrees":11.2771},"yoga":{"number":5,"name":"Śobhana","sum_longitude":60.9999},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.755,"elongation":108.221},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.755,"opposition_distance":71.779}},"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":"05:47","sunsetLocal":"18:02","solarNoonLocal":"11:55","dayLengthHours":12.244821294060175,"dayLengthDisplay":"12 Hours 14 Mins 41 Secs","nightLengthDisplay":"11 Hours 45 Mins 19 Secs","moonriseLocal":"14:03","moonsetLocal":"00:33","rahuKala":{"name":"Rāhu Kāla","start":"10:23","end":"11:55","startHours":10.378963635347905,"endHours":11.909566297105428,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:58","end":"16:30","startHours":14.970771620620472,"endHours":16.501374282377995,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:19","end":"08:51","startHours":7.317758311832861,"endHours":8.848360973590383,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:39","end":"09:03","startHours":8.64428061868938,"endHours":9.052441328491387,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:18","end":"06:37","startHours":6.297356537327847,"endHours":6.623885105169451,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:19","startHours":11.501405587303422,"endHours":12.317727006907434,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:09","end":"04:58","startHours":4.154512810867316,"endHours":4.970834230471328,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:46","end":"05:47","startHours":4.766753875570325,"endHours":5.78715565007534,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:46","startHours":13.950369846115457,"endHours":14.76669126571947,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.831976944135516,"endHours":18.231976944135514,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:33","startHours":18.031976944135515,"endHours":18.542177831388024,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.781976944135515,"endHours":19.531976944135515,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:19","startHours":23.501405587303424,"endHours":24.317727006907432,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:47","end":"07:19","startHours":5.78715565007534,"endHours":7.317758311832861,"quality":"neutral"},{"name":"Labha","start":"07:19","end":"08:51","startHours":7.317758311832861,"endHours":8.848360973590383,"quality":"auspicious"},{"name":"Amṛta","start":"08:51","end":"10:23","startHours":8.848360973590383,"endHours":10.378963635347905,"quality":"auspicious"},{"name":"Kāla","start":"10:23","end":"11:55","startHours":10.378963635347905,"endHours":11.909566297105428,"quality":"inauspicious"},{"name":"Śubha","start":"11:55","end":"13:26","startHours":11.909566297105428,"endHours":13.440168958862948,"quality":"auspicious"},{"name":"Roga","start":"13:26","end":"14:58","startHours":13.440168958862948,"endHours":14.970771620620472,"quality":"inauspicious"},{"name":"Udveg","start":"14:58","end":"16:30","startHours":14.970771620620472,"endHours":16.501374282377995,"quality":"inauspicious"},{"name":"Chala","start":"16:30","end":"18:02","startHours":16.501374282377995,"endHours":18.031976944135515,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:02","end":"19:30","startHours":18.031976944135515,"endHours":19.50137428237799,"quality":"inauspicious"},{"name":"Udveg","start":"19:30","end":"20:58","startHours":19.50137428237799,"endHours":20.97077162062047,"quality":"inauspicious"},{"name":"Chala","start":"20:58","end":"22:26","startHours":20.97077162062047,"endHours":22.440168958862948,"quality":"neutral"},{"name":"Labha","start":"22:26","end":"23:55","startHours":22.440168958862948,"endHours":23.909566297105428,"quality":"auspicious"},{"name":"Amṛta","start":"23:55","end":"01:23","startHours":23.909566297105428,"endHours":25.378963635347905,"quality":"auspicious"},{"name":"Kāla","start":"01:23","end":"02:51","startHours":25.378963635347905,"endHours":26.84836097359038,"quality":"inauspicious"},{"name":"Śubha","start":"02:51","end":"04:19","startHours":26.84836097359038,"endHours":28.31775831183286,"quality":"auspicious"},{"name":"Roga","start":"04:19","end":"05:47","startHours":28.31775831183286,"endHours":29.78715565007534,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.78715565007534,"endHours":6.78715565007534,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.78715565007534,"endHours":7.78715565007534,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.78715565007534,"endHours":8.78715565007534,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.78715565007534,"endHours":9.78715565007534,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.78715565007534,"endHours":10.78715565007534,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.78715565007534,"endHours":11.78715565007534,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.78715565007534,"endHours":12.78715565007534,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.78715565007534,"endHours":13.78715565007534,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.78715565007534,"endHours":14.78715565007534,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.78715565007534,"endHours":15.78715565007534,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.78715565007534,"endHours":16.78715565007534,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.78715565007534,"endHours":17.78715565007534,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.78715565007534,"endHours":18.78715565007534,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.78715565007534,"endHours":19.78715565007534,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.78715565007534,"endHours":20.78715565007534,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.78715565007534,"endHours":21.78715565007534,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.78715565007534,"endHours":22.78715565007534,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.78715565007534,"endHours":23.78715565007534,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.78715565007534,"endHours":24.78715565007534,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.78715565007534,"endHours":25.78715565007534,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.78715565007534,"endHours":26.78715565007534,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.78715565007534,"endHours":27.78715565007534,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.78715565007534,"endHours":28.78715565007534,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.78715565007534,"endHours":29.78715565007534,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.7855310780979634,"eotMinutes":6.610022173674397,"ayanamsa":19.1833}},"calendars":{"vikram_samvat":1722,"vikram_samvatsara":"Kālayukta","saka_samvat":1587,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1072,"malayalam_era":841,"nanakshahi_year":196,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Daśamī · Vikram 1722 Kālayukta · Śaka 1587 Viśvāvasu"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 September 18, 1665 CE · Ayodhyā · Vidhyamitra","description":"September 18, 1665 CE for Ayodhyā: Śukla Daśamī, sūryodaya 05:47, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1665-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1665-09-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/1665-09-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/1665-09-18","x-default":"https://vidhyamitra.com/city/ayodhya/1665-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T19:01:10.592Z","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":"2026-06-04T19:01:10.592Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T19:01:10.592Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}