{"id":"vidhyamitra:city-day:ayodhya:1866-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1866-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1866-10-18","date_display":"October 18, 1866 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":1866,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402892.770833,"kali_year":4968,"ahargana":1814427.2708,"sun":{"sidereal_longitude":182.0459,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":288.0989,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.053,"elapsed_within_tithi_degrees":10.053},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.0989,"elapsed_within_degrees":8.0989},"yoga":{"number":9,"name":"Śūla","sum_longitude":110.1449},"karana":{"half_tithi_index":17,"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":1866,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2402892.770833,"ahargana":1814427.2708,"kali_year":4968,"ayanamsa_lahiri":21.9922,"grahas":{"sun":{"sidereal_longitude":182.44928300000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":285.539983,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":3.6765},"mars":{"sidereal_longitude":89.333283,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":194.264683,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":274.101583,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":229.83068300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":201.52308300000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":162.9116,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":342.9116,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":1866,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402892.770833,"kali_year":4968,"ahargana":1814427.2708,"sun":{"sidereal_longitude":182.0459,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":288.0989,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":106.053,"elapsed_within_tithi_degrees":10.053},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.0989,"elapsed_within_degrees":8.0989},"yoga":{"number":9,"name":"Śūla","sum_longitude":110.1449},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.676,"elongation":106.053},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.676,"opposition_distance":73.947}},"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":"06:01","sunsetLocal":"17:30","solarNoonLocal":"11:46","dayLengthHours":11.481941716032019,"dayLengthDisplay":"11 Hours 28 Mins 55 Secs","nightLengthDisplay":"12 Hours 31 Mins 05 Secs","moonriseLocal":"13:14","moonsetLocal":"00:02","rahuKala":{"name":"Rāhu Kāla","start":"13:12","end":"14:38","startHours":13.198381744450362,"endHours":14.633624458954365,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:01","end":"07:27","startHours":6.022168171930351,"endHours":7.457410886434353,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:54","end":"10:20","startHours":8.892653600938356,"endHours":10.327896315442358,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:42","end":"09:05","startHours":8.701287905671155,"endHours":9.084019296205556,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:48","startHours":6.500582410098351,"endHours":6.806767522525872,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:23","end":"12:09","startHours":11.380407639411958,"endHours":12.14587042048076,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:29","end":"05:15","startHours":4.491242609792748,"endHours":5.2567053908615495,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:01","startHours":5.065339695594349,"endHours":6.022168171930351,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:41","end":"14:27","startHours":13.676795982618362,"endHours":14.442258763687164,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:18","end":"17:42","startHours":17.30410988796237,"endHours":17.704109887962368,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:30","end":"17:59","startHours":17.504109887962368,"endHours":17.982524126130368,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:15","end":"19:00","startHours":17.254109887962368,"endHours":19.004109887962368,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:23","end":"00:09","startHours":23.38040763941196,"endHours":24.145870420480758,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:01","end":"07:27","startHours":6.022168171930351,"endHours":7.457410886434353,"quality":"auspicious"},{"name":"Roga","start":"07:27","end":"08:54","startHours":7.457410886434353,"endHours":8.892653600938356,"quality":"inauspicious"},{"name":"Udveg","start":"08:54","end":"10:20","startHours":8.892653600938356,"endHours":10.327896315442358,"quality":"inauspicious"},{"name":"Chala","start":"10:20","end":"11:46","startHours":10.327896315442358,"endHours":11.763139029946359,"quality":"neutral"},{"name":"Labha","start":"11:46","end":"13:12","startHours":11.763139029946359,"endHours":13.198381744450362,"quality":"auspicious"},{"name":"Amṛta","start":"13:12","end":"14:38","startHours":13.198381744450362,"endHours":14.633624458954365,"quality":"auspicious"},{"name":"Kāla","start":"14:38","end":"16:04","startHours":14.633624458954365,"endHours":16.068867173458365,"quality":"inauspicious"},{"name":"Śubha","start":"16:04","end":"17:30","startHours":16.068867173458365,"endHours":17.504109887962368,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:30","end":"19:04","startHours":17.504109887962368,"endHours":19.068867173458365,"quality":"auspicious"},{"name":"Kāla","start":"19:04","end":"20:38","startHours":19.068867173458365,"endHours":20.633624458954365,"quality":"inauspicious"},{"name":"Śubha","start":"20:38","end":"22:12","startHours":20.633624458954365,"endHours":22.198381744450362,"quality":"auspicious"},{"name":"Roga","start":"22:12","end":"23:46","startHours":22.198381744450362,"endHours":23.76313902994636,"quality":"inauspicious"},{"name":"Udveg","start":"23:46","end":"01:20","startHours":23.76313902994636,"endHours":25.327896315442356,"quality":"inauspicious"},{"name":"Chala","start":"01:20","end":"02:54","startHours":25.327896315442356,"endHours":26.892653600938353,"quality":"neutral"},{"name":"Labha","start":"02:54","end":"04:27","startHours":26.892653600938353,"endHours":28.457410886434353,"quality":"auspicious"},{"name":"Amṛta","start":"04:27","end":"06:01","startHours":28.457410886434353,"endHours":30.02216817193035,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.022168171930351,"endHours":7.022168171930351,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.022168171930351,"endHours":8.02216817193035,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.02216817193035,"endHours":9.02216817193035,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.02216817193035,"endHours":10.02216817193035,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.02216817193035,"endHours":11.02216817193035,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.02216817193035,"endHours":12.02216817193035,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.02216817193035,"endHours":13.02216817193035,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.02216817193035,"endHours":14.02216817193035,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.02216817193035,"endHours":15.02216817193035,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.02216817193035,"endHours":16.02216817193035,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.02216817193035,"endHours":17.02216817193035,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.02216817193035,"endHours":18.02216817193035,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.02216817193035,"endHours":19.02216817193035,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.02216817193035,"endHours":20.02216817193035,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.02216817193035,"endHours":21.02216817193035,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.02216817193035,"endHours":22.02216817193035,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.02216817193035,"endHours":23.02216817193035,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.02216817193035,"endHours":24.02216817193035,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.02216817193035,"endHours":25.02216817193035,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.02216817193035,"endHours":26.02216817193035,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.02216817193035,"endHours":27.02216817193035,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.02216817193035,"endHours":28.02216817193035,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.02216817193035,"endHours":29.02216817193035,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.02216817193035,"endHours":30.02216817193035,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-9.472095655131755,"eotMinutes":15.395658203218455,"ayanamsa":21.9922}},"calendars":{"vikram_samvat":1923,"vikram_samvatsara":"Pramāthi","saka_samvat":1788,"saka_samvatsara":"Akṣaya","bengali_samvat":1273,"malayalam_era":1042,"nanakshahi_year":397,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 1923 Pramāthi · Śaka 1788 Akṣaya"},"festivals":[{"id":"mahanavami","name":"Mahā-Navamī","name_sanskrit":"महानवमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"9th day of Śāradīya Navrātri; Devī's final victory.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1}],"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":[{"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 October 18, 1866 CE · Ayodhyā · Vidhyamitra","description":"October 18, 1866 CE for Ayodhyā: Śukla Navamī, sūryodaya 06:01, sūryāsta 17:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1866-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1866-10-18","sa":"https://sa.vidhyamitra.com/city/ayodhya/1866-10-18","hi":"https://hi.vidhyamitra.com/city/ayodhya/1866-10-18","x-default":"https://vidhyamitra.com/city/ayodhya/1866-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:39:09.690Z","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":"2026-05-31T18:39:09.690Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:39:09.690Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}