{"id":"vidhyamitra:city-day:ayodhya:1666-01-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1666-01-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1666-01-07","date_display":"January 7, 1666 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":1666,"month":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329560.770833,"kali_year":4767,"ahargana":1741095.2708,"sun":{"sidereal_longitude":268.5973,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":290.083,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.4857,"elapsed_within_tithi_degrees":9.4857},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":290.083,"elapsed_within_degrees":10.083},"yoga":{"number":15,"name":"Vajra","sum_longitude":198.6802},"karana":{"half_tithi_index":3,"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":1666,"month":1,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2329560.770833,"ahargana":1741095.2708,"kali_year":4767,"ayanamsa_lahiri":19.1876,"grahas":{"sun":{"sidereal_longitude":267.950605,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":287.138905,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":-1.6616},"mars":{"sidereal_longitude":167.633105,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":286.9509049999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":309.4989049999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":246.02860499999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":267.700105,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":88.3938,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":268.3938,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara 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":1666,"month":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329560.770833,"kali_year":4767,"ahargana":1741095.2708,"sun":{"sidereal_longitude":268.5973,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":290.083,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":21.4857,"elapsed_within_tithi_degrees":9.4857},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4,"moon_longitude":290.083,"elapsed_within_degrees":10.083},"yoga":{"number":15,"name":"Vajra","sum_longitude":198.6802},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.662,"elongation":21.486},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.662,"opposition_distance":158.514}},"eclipse_window_40days":[{"offset_days":-2,"type":"solar","occurs":true,"moon_latitude":0.344,"elongation":2.428},{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":1.239,"opposition_distance":0.691}]},"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":"06:51","sunsetLocal":"17:24","solarNoonLocal":"12:07","dayLengthHours":10.540045225537746,"dayLengthDisplay":"10 Hours 32 Mins 24 Secs","nightLengthDisplay":"13 Hours 27 Mins 36 Secs","moonriseLocal":"08:01","moonsetLocal":"18:48","rahuKala":{"name":"Rāhu Kāla","start":"13:27","end":"14:46","startHours":13.442106891649216,"endHours":14.759612544841435,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:51","end":"08:10","startHours":6.8545786256881245,"endHours":8.172084278880343,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:29","end":"10:48","startHours":9.489589932072562,"endHours":10.80709558526478,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:19","end":"09:40","startHours":9.313922511646933,"endHours":9.665257352498191,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:34","startHours":7.2937471767521975,"endHours":7.574815049433204,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:29","startHours":11.773266397605738,"endHours":12.475936079308255,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:27","end":"06:09","startHours":5.449239262283092,"endHours":6.1519089439856085,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:59","end":"06:51","startHours":5.976241523559979,"endHours":6.8545786256881245,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:35","startHours":13.881275442713289,"endHours":14.583945124415806,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.19462385122587,"endHours":17.59462385122587,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:50","startHours":17.39462385122587,"endHours":17.83379240228994,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.14462385122587,"endHours":18.89462385122587,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:29","startHours":23.773266397605738,"endHours":24.475936079308255,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:51","end":"08:10","startHours":6.8545786256881245,"endHours":8.172084278880343,"quality":"auspicious"},{"name":"Roga","start":"08:10","end":"09:29","startHours":8.172084278880343,"endHours":9.489589932072562,"quality":"inauspicious"},{"name":"Udveg","start":"09:29","end":"10:48","startHours":9.489589932072562,"endHours":10.80709558526478,"quality":"inauspicious"},{"name":"Chala","start":"10:48","end":"12:07","startHours":10.80709558526478,"endHours":12.124601238456997,"quality":"neutral"},{"name":"Labha","start":"12:07","end":"13:27","startHours":12.124601238456997,"endHours":13.442106891649216,"quality":"auspicious"},{"name":"Amṛta","start":"13:27","end":"14:46","startHours":13.442106891649216,"endHours":14.759612544841435,"quality":"auspicious"},{"name":"Kāla","start":"14:46","end":"16:05","startHours":14.759612544841435,"endHours":16.077118198033652,"quality":"inauspicious"},{"name":"Śubha","start":"16:05","end":"17:24","startHours":16.077118198033652,"endHours":17.39462385122587,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:24","end":"19:05","startHours":17.39462385122587,"endHours":19.077118198033652,"quality":"auspicious"},{"name":"Kāla","start":"19:05","end":"20:46","startHours":19.077118198033652,"endHours":20.75961254484143,"quality":"inauspicious"},{"name":"Śubha","start":"20:46","end":"22:27","startHours":20.75961254484143,"endHours":22.442106891649214,"quality":"auspicious"},{"name":"Roga","start":"22:27","end":"00:07","startHours":22.442106891649214,"endHours":24.124601238456997,"quality":"inauspicious"},{"name":"Udveg","start":"00:07","end":"01:48","startHours":24.124601238456997,"endHours":25.80709558526478,"quality":"inauspicious"},{"name":"Chala","start":"01:48","end":"03:29","startHours":25.80709558526478,"endHours":27.489589932072562,"quality":"neutral"},{"name":"Labha","start":"03:29","end":"05:10","startHours":27.489589932072562,"endHours":29.17208427888034,"quality":"auspicious"},{"name":"Amṛta","start":"05:10","end":"06:51","startHours":29.17208427888034,"endHours":30.854578625688124,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:51","end":"07:51","startHours":6.8545786256881245,"endHours":7.8545786256881245,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:51","end":"08:51","startHours":7.8545786256881245,"endHours":8.854578625688124,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:51","end":"09:51","startHours":8.854578625688124,"endHours":9.854578625688124,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:51","end":"10:51","startHours":9.854578625688124,"endHours":10.854578625688124,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:51","end":"11:51","startHours":10.854578625688124,"endHours":11.854578625688124,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:51","end":"12:51","startHours":11.854578625688124,"endHours":12.854578625688124,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:51","end":"13:51","startHours":12.854578625688124,"endHours":13.854578625688124,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:51","end":"14:51","startHours":13.854578625688124,"endHours":14.854578625688124,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:51","end":"15:51","startHours":14.854578625688124,"endHours":15.854578625688124,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:51","end":"16:51","startHours":15.854578625688124,"endHours":16.854578625688124,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:51","end":"17:51","startHours":16.854578625688124,"endHours":17.854578625688124,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:51","end":"18:51","startHours":17.854578625688124,"endHours":18.854578625688124,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:51","end":"19:51","startHours":18.854578625688124,"endHours":19.854578625688124,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:51","end":"20:51","startHours":19.854578625688124,"endHours":20.854578625688124,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:51","end":"21:51","startHours":20.854578625688124,"endHours":21.854578625688124,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:51","end":"22:51","startHours":21.854578625688124,"endHours":22.854578625688124,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:51","end":"23:51","startHours":22.854578625688124,"endHours":23.854578625688124,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:51","end":"00:51","startHours":23.854578625688124,"endHours":24.854578625688124,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:51","end":"01:51","startHours":24.854578625688124,"endHours":25.854578625688124,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:51","end":"02:51","startHours":25.854578625688124,"endHours":26.854578625688124,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:51","end":"03:51","startHours":26.854578625688124,"endHours":27.854578625688124,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:51","end":"04:51","startHours":27.854578625688124,"endHours":28.854578625688124,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:51","end":"05:51","startHours":28.854578625688124,"endHours":29.854578625688124,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:51","end":"06:51","startHours":29.854578625688124,"endHours":30.854578625688124,"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":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.338132751450967,"eotMinutes":-6.292074307419696,"ayanamsa":19.1876}},"calendars":{"vikram_samvat":1723,"vikram_samvatsara":"Siddhārthī","saka_samvat":1588,"saka_samvatsara":"Parābhava","bengali_samvat":1073,"malayalam_era":842,"nanakshahi_year":197,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvitīyā · Vikram 1723 Siddhārthī · Śaka 1588 Parābhava"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"precedence":4}],"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 January 7, 1666 CE · Ayodhyā · Vidhyamitra","description":"January 7, 1666 CE for Ayodhyā: Śukla Dvitīyā, sūryodaya 06:51, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1666-01-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1666-01-07","sa":"https://sa.vidhyamitra.com/city/ayodhya/1666-01-07","hi":"https://hi.vidhyamitra.com/city/ayodhya/1666-01-07","x-default":"https://vidhyamitra.com/city/ayodhya/1666-01-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T13:12:31.014Z","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":"2026-06-04T13:12:31.014Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T13:12:31.014Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}