{"id":"vidhyamitra:city-day:ayodhya:1666-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/1666-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1666-01-27","date_display":"January 27, 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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329580.770833,"kali_year":4767,"ahargana":1741115.2708,"sun":{"sidereal_longitude":289.092,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":189.9504,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":260.8584,"elapsed_within_tithi_degrees":8.8584},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":189.9504,"elapsed_within_degrees":3.2837},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.0424},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2329580.770833,"ahargana":1741115.2708,"kali_year":4767,"ayanamsa_lahiri":19.1883,"grahas":{"sun":{"sidereal_longitude":288.296341,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":191.73264100000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":4.3911},"mars":{"sidereal_longitude":172.14384100000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":305.7486409999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":314.01424099999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":270.96544100000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":270.009041,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":87.3341,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":267.3341,"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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2329580.770833,"kali_year":4767,"ahargana":1741115.2708,"sun":{"sidereal_longitude":289.092,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":189.9504,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":260.8584,"elapsed_within_tithi_degrees":8.8584},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":189.9504,"elapsed_within_degrees":3.2837},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.0424},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.391,"elongation":99.142},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.391,"opposition_distance":80.858}},"eclipse_window_40days":[{"offset_days":-6,"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":"06:49","sunsetLocal":"17:39","solarNoonLocal":"12:14","dayLengthHours":10.84325393000946,"dayLengthDisplay":"10 Hours 50 Mins 36 Secs","nightLengthDisplay":"13 Hours 09 Mins 24 Secs","moonriseLocal":"00:09","moonsetLocal":"11:26","rahuKala":{"name":"Rāhu Kāla","start":"12:14","end":"13:35","startHours":12.23248009178132,"endHours":13.587886833032503,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:10","end":"09:31","startHours":8.166259868027772,"endHours":9.521666609278954,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:53","end":"12:14","startHours":10.877073350530136,"endHours":12.23248009178132,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:42","startHours":9.340945710445464,"endHours":9.702387508112444,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:16","end":"07:33","startHours":7.262655373860317,"endHours":7.551808811993903,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:36","startHours":11.871038294114337,"endHours":12.593921889448302,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:22","end":"06:05","startHours":5.365085936108661,"endHours":6.087969531442625,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:54","end":"06:49","startHours":5.907248632609134,"endHours":6.810853126776589,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:46","startHours":14.03968908011623,"endHours":14.762572675450194,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:27","end":"17:51","startHours":17.45410705678605,"endHours":17.85410705678605,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:39","end":"18:06","startHours":17.65410705678605,"endHours":18.105909303869776,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:24","end":"19:09","startHours":17.40410705678605,"endHours":19.15410705678605,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:36","startHours":23.87103829411434,"endHours":24.5939218894483,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:49","end":"08:10","startHours":6.810853126776589,"endHours":8.166259868027772,"quality":"auspicious"},{"name":"Amṛta","start":"08:10","end":"09:31","startHours":8.166259868027772,"endHours":9.521666609278954,"quality":"auspicious"},{"name":"Kāla","start":"09:31","end":"10:53","startHours":9.521666609278954,"endHours":10.877073350530136,"quality":"inauspicious"},{"name":"Śubha","start":"10:53","end":"12:14","startHours":10.877073350530136,"endHours":12.23248009178132,"quality":"auspicious"},{"name":"Roga","start":"12:14","end":"13:35","startHours":12.23248009178132,"endHours":13.587886833032503,"quality":"inauspicious"},{"name":"Udveg","start":"13:35","end":"14:57","startHours":13.587886833032503,"endHours":14.943293574283684,"quality":"inauspicious"},{"name":"Chala","start":"14:57","end":"16:18","startHours":14.943293574283684,"endHours":16.298700315534866,"quality":"neutral"},{"name":"Labha","start":"16:18","end":"17:39","startHours":16.298700315534866,"endHours":17.65410705678605,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:39","end":"19:18","startHours":17.65410705678605,"endHours":19.298700315534866,"quality":"inauspicious"},{"name":"Chala","start":"19:18","end":"20:57","startHours":19.298700315534866,"endHours":20.943293574283686,"quality":"neutral"},{"name":"Labha","start":"20:57","end":"22:35","startHours":20.943293574283686,"endHours":22.587886833032503,"quality":"auspicious"},{"name":"Amṛta","start":"22:35","end":"00:14","startHours":22.587886833032503,"endHours":24.23248009178132,"quality":"auspicious"},{"name":"Kāla","start":"00:14","end":"01:53","startHours":24.23248009178132,"endHours":25.877073350530136,"quality":"inauspicious"},{"name":"Śubha","start":"01:53","end":"03:31","startHours":25.877073350530136,"endHours":27.521666609278952,"quality":"auspicious"},{"name":"Roga","start":"03:31","end":"05:10","startHours":27.521666609278952,"endHours":29.166259868027772,"quality":"inauspicious"},{"name":"Udveg","start":"05:10","end":"06:49","startHours":29.166259868027772,"endHours":30.81085312677659,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:49","end":"07:49","startHours":6.810853126776589,"endHours":7.810853126776589,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:49","end":"08:49","startHours":7.810853126776589,"endHours":8.810853126776589,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:49","end":"09:49","startHours":8.810853126776589,"endHours":9.810853126776589,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:49","end":"10:49","startHours":9.810853126776589,"endHours":10.810853126776589,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:49","end":"11:49","startHours":10.810853126776589,"endHours":11.810853126776589,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:49","end":"12:49","startHours":11.810853126776589,"endHours":12.810853126776589,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:49","end":"13:49","startHours":12.810853126776589,"endHours":13.810853126776589,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:49","end":"14:49","startHours":13.810853126776589,"endHours":14.810853126776589,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:49","end":"15:49","startHours":14.810853126776589,"endHours":15.810853126776589,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:49","end":"16:49","startHours":15.810853126776589,"endHours":16.81085312677659,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:49","end":"17:49","startHours":16.81085312677659,"endHours":17.81085312677659,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:49","end":"18:49","startHours":17.81085312677659,"endHours":18.81085312677659,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:49","end":"19:49","startHours":18.81085312677659,"endHours":19.81085312677659,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:49","end":"20:49","startHours":19.81085312677659,"endHours":20.81085312677659,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:49","end":"21:49","startHours":20.81085312677659,"endHours":21.81085312677659,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:49","end":"22:49","startHours":21.81085312677659,"endHours":22.81085312677659,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:49","end":"23:49","startHours":22.81085312677659,"endHours":23.81085312677659,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:49","end":"00:49","startHours":23.81085312677659,"endHours":24.81085312677659,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:49","end":"01:49","startHours":24.81085312677659,"endHours":25.81085312677659,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:49","end":"02:49","startHours":25.81085312677659,"endHours":26.81085312677659,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:49","end":"03:49","startHours":26.81085312677659,"endHours":27.81085312677659,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:49","end":"04:49","startHours":27.81085312677659,"endHours":28.81085312677659,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:49","end":"05:49","startHours":28.81085312677659,"endHours":29.81085312677659,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:49","end":"06:49","startHours":29.81085312677659,"endHours":30.81085312677659,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.397478032958333,"eotMinutes":-12.76480550687915,"ayanamsa":19.1883}},"calendars":{"vikram_samvat":1723,"vikram_samvatsara":"Siddhārthī","saka_samvat":1588,"saka_samvatsara":"Parābhava","bengali_samvat":1073,"malayalam_era":842,"nanakshahi_year":197,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Saptamī · Vikram 1723 Siddhārthī · Śaka 1588 Parābhava"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 27, 1666 CE · Ayodhyā · Vidhyamitra","description":"January 27, 1666 CE for Ayodhyā: Kṛṣṇa Saptamī, sūryodaya 06:49, sūryāsta 17:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/1666-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/1666-01-27","sa":"https://sa.vidhyamitra.com/city/ayodhya/1666-01-27","hi":"https://hi.vidhyamitra.com/city/ayodhya/1666-01-27","x-default":"https://vidhyamitra.com/city/ayodhya/1666-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T16:16:36.356Z","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":"2026-06-04T16:16:36.356Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T16:16:36.356Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}