{"id":"vidhyamitra:city-day:rishikesh:1963-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1963-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-10-18","date_display":"October 18, 1963 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":1963,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438320.770833,"kali_year":5065,"ahargana":1849855.2708,"sun":{"sidereal_longitude":179.9559,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":187.2815,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.3256,"elapsed_within_tithi_degrees":7.3256},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":187.2815,"elapsed_within_degrees":0.6148},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.2374},"karana":{"half_tithi_index":1,"name":"Bava"},"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":1963,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438320.770833,"ahargana":1849855.2708,"kali_year":5065,"ayanamsa_lahiri":23.3472,"grahas":{"sun":{"sidereal_longitude":180.59707300000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":186.24957300000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false,"latitude":4.4092},"mars":{"sidereal_longitude":211.69287299999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":168.847573,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":350.480773,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":194.10067300000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":293.813573,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":85.7656,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":265.7656,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"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":1963,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438320.770833,"kali_year":5065,"ahargana":1849855.2708,"sun":{"sidereal_longitude":179.9559,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":187.2815,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.3256,"elapsed_within_tithi_degrees":7.3256},"nakshatra":{"number":15,"name":"Svātī","pada":1,"moon_longitude":187.2815,"elapsed_within_degrees":0.6148},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.2374},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.409,"elongation":7.326},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.409,"opposition_distance":172.674}},"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":"06:19","sunsetLocal":"17:44","solarNoonLocal":"12:02","dayLengthHours":11.405513584610823,"dayLengthDisplay":"11 Hours 24 Mins 20 Secs","nightLengthDisplay":"12 Hours 35 Mins 40 Secs","moonriseLocal":"06:48","moonsetLocal":"18:00","rahuKala":{"name":"Rāhu Kāla","start":"10:36","end":"12:02","startHours":10.599876498536673,"endHours":12.025565696613025,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:53","end":"16:18","startHours":14.876944092765733,"endHours":16.302633290842085,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:45","end":"09:10","startHours":7.748498102383968,"endHours":9.174187300460321,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:22","startHours":8.984095407383474,"endHours":9.364279193537168,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:48","end":"07:06","startHours":6.798038636999732,"endHours":7.102185665922687,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:24","startHours":11.645381910459331,"endHours":12.40574948276672,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:34","startHours":4.8020737596928385,"endHours":5.562441332000226,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:22","end":"06:19","startHours":5.372349438923379,"endHours":6.322808904307615,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:41","startHours":13.926484627381496,"endHours":14.686852199688884,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:32","end":"17:56","startHours":17.528322488918437,"endHours":17.928322488918436,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:44","end":"18:12","startHours":17.728322488918437,"endHours":18.203552221610554,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:29","end":"19:14","startHours":17.478322488918437,"endHours":19.228322488918437,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:24","startHours":23.64538191045933,"endHours":24.40574948276672,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:19","end":"07:45","startHours":6.322808904307615,"endHours":7.748498102383968,"quality":"neutral"},{"name":"Labha","start":"07:45","end":"09:10","startHours":7.748498102383968,"endHours":9.174187300460321,"quality":"auspicious"},{"name":"Amṛta","start":"09:10","end":"10:36","startHours":9.174187300460321,"endHours":10.599876498536673,"quality":"auspicious"},{"name":"Kāla","start":"10:36","end":"12:02","startHours":10.599876498536673,"endHours":12.025565696613025,"quality":"inauspicious"},{"name":"Śubha","start":"12:02","end":"13:27","startHours":12.025565696613025,"endHours":13.451254894689379,"quality":"auspicious"},{"name":"Roga","start":"13:27","end":"14:53","startHours":13.451254894689379,"endHours":14.876944092765733,"quality":"inauspicious"},{"name":"Udveg","start":"14:53","end":"16:18","startHours":14.876944092765733,"endHours":16.302633290842085,"quality":"inauspicious"},{"name":"Chala","start":"16:18","end":"17:44","startHours":16.302633290842085,"endHours":17.728322488918437,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:44","end":"19:18","startHours":17.728322488918437,"endHours":19.302633290842085,"quality":"inauspicious"},{"name":"Udveg","start":"19:18","end":"20:53","startHours":19.302633290842085,"endHours":20.876944092765733,"quality":"inauspicious"},{"name":"Chala","start":"20:53","end":"22:27","startHours":20.876944092765733,"endHours":22.451254894689377,"quality":"neutral"},{"name":"Labha","start":"22:27","end":"00:02","startHours":22.451254894689377,"endHours":24.025565696613025,"quality":"auspicious"},{"name":"Amṛta","start":"00:02","end":"01:36","startHours":24.025565696613025,"endHours":25.599876498536673,"quality":"auspicious"},{"name":"Kāla","start":"01:36","end":"03:10","startHours":25.599876498536673,"endHours":27.174187300460318,"quality":"inauspicious"},{"name":"Śubha","start":"03:10","end":"04:45","startHours":27.174187300460318,"endHours":28.748498102383966,"quality":"auspicious"},{"name":"Roga","start":"04:45","end":"06:19","startHours":28.748498102383966,"endHours":30.322808904307614,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.322808904307615,"endHours":7.322808904307615,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.322808904307615,"endHours":8.322808904307614,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.322808904307614,"endHours":9.322808904307614,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.322808904307614,"endHours":10.322808904307614,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.322808904307614,"endHours":11.322808904307614,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.322808904307614,"endHours":12.322808904307614,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.322808904307614,"endHours":13.322808904307614,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.322808904307614,"endHours":14.322808904307614,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.322808904307614,"endHours":15.322808904307614,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.322808904307614,"endHours":16.322808904307614,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.322808904307614,"endHours":17.322808904307614,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.322808904307614,"endHours":18.322808904307614,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.322808904307614,"endHours":19.322808904307614,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.322808904307614,"endHours":20.322808904307614,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.322808904307614,"endHours":21.322808904307614,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.322808904307614,"endHours":22.322808904307614,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.322808904307614,"endHours":23.322808904307614,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.322808904307614,"endHours":24.322808904307614,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.322808904307614,"endHours":25.322808904307614,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.322808904307614,"endHours":26.322808904307614,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.322808904307614,"endHours":27.322808904307614,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.322808904307614,"endHours":28.322808904307614,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.322808904307614,"endHours":29.322808904307614,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.322808904307614,"endHours":30.322808904307614,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"North","rahuVasa":"South-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.289263352215865,"eotMinutes":15.395658203218455,"ayanamsa":23.3472}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Pratipada · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[{"id":"govardhana-puja","name":"Govardhana Pūjā (Annakūṭa)","name_sanskrit":"गोवर्धन पूजा","tradition":"Vaishnava","associated_deity":"Krishna (Govardhana-dhārī)","significance":"Krishna lifted Govardhana to protect Vraja from Indra's wrath. Day 4 of Diwali.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 10.24-27"]},{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"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":"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 18, 1963 CE · Ṛṣikeśa · Vidhyamitra","description":"October 18, 1963 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 06:19, sūryāsta 17:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1963-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1963-10-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1963-10-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1963-10-18","x-default":"https://vidhyamitra.com/city/rishikesh/1963-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T04:41:48.410Z","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":"2026-05-20T04:41:48.410Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T04:41:48.410Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}