{"id":"vidhyamitra:city-day:rishikesh:1966-10-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1966-10-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-10-15","date_display":"October 15, 1966 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":1966,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439413.770833,"kali_year":5068,"ahargana":1850948.2708,"sun":{"sidereal_longitude":177.1967,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":189.6332,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.4365,"elapsed_within_tithi_degrees":0.4365},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":189.6332,"elapsed_within_degrees":2.9665},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":6.8298},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1966,"month":10,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439413.770833,"ahargana":1850948.2708,"kali_year":5068,"ayanamsa_lahiri":23.389,"grahas":{"sun":{"sidereal_longitude":177.85061199999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":190.04821199999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":1.4057},"mars":{"sidereal_longitude":128.44381199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":199.95571199999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":99.446212,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"venus":{"sidereal_longitude":171.94651199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":331.694212,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":27.8532,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":207.8532,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1966,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439413.770833,"kali_year":5068,"ahargana":1850948.2708,"sun":{"sidereal_longitude":177.1967,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":189.6332,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.4365,"elapsed_within_tithi_degrees":0.4365},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":189.6332,"elapsed_within_degrees":2.9665},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":6.8298},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.406,"elongation":12.436},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.406,"opposition_distance":167.564}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"06:18","sunsetLocal":"17:47","solarNoonLocal":"12:02","dayLengthHours":11.484856233162013,"dayLengthDisplay":"11 Hours 29 Mins 05 Secs","nightLengthDisplay":"12 Hours 30 Mins 55 Secs","moonriseLocal":"07:18","moonsetLocal":"18:24","rahuKala":{"name":"Rāhu Kāla","start":"09:10","end":"10:36","startHours":9.163332102187697,"endHours":10.598939131332948,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:28","end":"14:54","startHours":13.470153189623453,"endHours":14.905760218768703,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:18","end":"07:44","startHours":6.292118043897194,"endHours":7.727725073042445,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:58","end":"09:21","startHours":8.971917831634997,"endHours":9.354746372740397,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:05","startHours":6.770653720278944,"endHours":7.076916553163264,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:25","startHours":11.6517176193728,"endHours":12.4173747015836,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:46","end":"05:32","startHours":4.760803879475592,"endHours":5.526460961686393,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:20","end":"06:18","startHours":5.335046691133693,"endHours":6.292118043897194,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:43","startHours":13.948688866005202,"endHours":14.714345948216003,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:35","end":"17:59","startHours":17.576974277059207,"endHours":17.976974277059206,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:47","end":"18:15","startHours":17.776974277059207,"endHours":18.255509953440956,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:32","end":"19:17","startHours":17.526974277059207,"endHours":19.276974277059207,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:25","startHours":23.6517176193728,"endHours":24.4173747015836,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:18","end":"07:44","startHours":6.292118043897194,"endHours":7.727725073042445,"quality":"inauspicious"},{"name":"Śubha","start":"07:44","end":"09:10","startHours":7.727725073042445,"endHours":9.163332102187697,"quality":"auspicious"},{"name":"Roga","start":"09:10","end":"10:36","startHours":9.163332102187697,"endHours":10.598939131332948,"quality":"inauspicious"},{"name":"Udveg","start":"10:36","end":"12:02","startHours":10.598939131332948,"endHours":12.0345461604782,"quality":"inauspicious"},{"name":"Chala","start":"12:02","end":"13:28","startHours":12.0345461604782,"endHours":13.470153189623453,"quality":"neutral"},{"name":"Labha","start":"13:28","end":"14:54","startHours":13.470153189623453,"endHours":14.905760218768703,"quality":"auspicious"},{"name":"Amṛta","start":"14:54","end":"16:20","startHours":14.905760218768703,"endHours":16.341367247913954,"quality":"auspicious"},{"name":"Kāla","start":"16:20","end":"17:47","startHours":16.341367247913954,"endHours":17.776974277059207,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:47","end":"19:20","startHours":17.776974277059207,"endHours":19.341367247913954,"quality":"auspicious"},{"name":"Amṛta","start":"19:20","end":"20:54","startHours":19.341367247913954,"endHours":20.905760218768705,"quality":"auspicious"},{"name":"Kāla","start":"20:54","end":"22:28","startHours":20.905760218768705,"endHours":22.470153189623453,"quality":"inauspicious"},{"name":"Śubha","start":"22:28","end":"00:02","startHours":22.470153189623453,"endHours":24.0345461604782,"quality":"auspicious"},{"name":"Roga","start":"00:02","end":"01:36","startHours":24.0345461604782,"endHours":25.598939131332948,"quality":"inauspicious"},{"name":"Udveg","start":"01:36","end":"03:10","startHours":25.598939131332948,"endHours":27.163332102187695,"quality":"inauspicious"},{"name":"Chala","start":"03:10","end":"04:44","startHours":27.163332102187695,"endHours":28.727725073042446,"quality":"neutral"},{"name":"Labha","start":"04:44","end":"06:18","startHours":28.727725073042446,"endHours":30.292118043897194,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:18","end":"07:18","startHours":6.292118043897194,"endHours":7.292118043897194,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:18","end":"08:18","startHours":7.292118043897194,"endHours":8.292118043897194,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:18","end":"09:18","startHours":8.292118043897194,"endHours":9.292118043897194,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:18","end":"10:18","startHours":9.292118043897194,"endHours":10.292118043897194,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:18","end":"11:18","startHours":10.292118043897194,"endHours":11.292118043897194,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:18","end":"12:18","startHours":11.292118043897194,"endHours":12.292118043897194,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:18","end":"13:18","startHours":12.292118043897194,"endHours":13.292118043897194,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:18","end":"14:18","startHours":13.292118043897194,"endHours":14.292118043897194,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:18","end":"15:18","startHours":14.292118043897194,"endHours":15.292118043897194,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:18","end":"16:18","startHours":15.292118043897194,"endHours":16.292118043897194,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:18","end":"17:18","startHours":16.292118043897194,"endHours":17.292118043897194,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:18","end":"18:18","startHours":17.292118043897194,"endHours":18.292118043897194,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:18","end":"19:18","startHours":18.292118043897194,"endHours":19.292118043897194,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:18","end":"20:18","startHours":19.292118043897194,"endHours":20.292118043897194,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:18","end":"21:18","startHours":20.292118043897194,"endHours":21.292118043897194,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:18","end":"22:18","startHours":21.292118043897194,"endHours":22.292118043897194,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:18","end":"23:18","startHours":22.292118043897194,"endHours":23.292118043897194,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:18","end":"00:18","startHours":23.292118043897194,"endHours":24.292118043897194,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:18","end":"01:18","startHours":24.292118043897194,"endHours":25.292118043897194,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:18","end":"02:18","startHours":25.292118043897194,"endHours":26.292118043897194,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:18","end":"03:18","startHours":26.292118043897194,"endHours":27.292118043897194,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:18","end":"04:18","startHours":27.292118043897194,"endHours":28.292118043897194,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:18","end":"05:18","startHours":28.292118043897194,"endHours":29.292118043897194,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:18","end":"06:18","startHours":29.292118043897194,"endHours":30.292118043897194,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.28436448775379,"eotMinutes":14.85683037130801,"ayanamsa":23.389}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"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":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Dvitīyā · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 15, 1966 CE · Ṛṣikeśa · Vidhyamitra","description":"October 15, 1966 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 06:18, sūryāsta 17:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1966-10-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1966-10-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/1966-10-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/1966-10-15","x-default":"https://vidhyamitra.com/city/rishikesh/1966-10-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:17:38.414Z","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":"2026-05-30T23:17:38.414Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:17:38.414Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}