{"id":"vidhyamitra:city-day:rishikesh:1963-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1963-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-09-18","date_display":"September 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":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438290.770833,"kali_year":5065,"ahargana":1849825.2708,"sun":{"sidereal_longitude":150.4259,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":154.2533,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.8273,"elapsed_within_tithi_degrees":3.8273},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.2533,"elapsed_within_degrees":7.5866},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.6792},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"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":1963,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438290.770833,"ahargana":1849825.2708,"kali_year":5065,"ayanamsa_lahiri":23.3461,"grahas":{"sun":{"sidereal_longitude":151.07041900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":153.01401899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":4.1385},"mars":{"sidereal_longitude":190.97371899999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":156.16931899999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":354.368119,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":156.75351899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":294.725319,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":87.3552,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":267.3552,"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":1963,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438290.770833,"kali_year":5065,"ahargana":1849825.2708,"sun":{"sidereal_longitude":150.4259,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":154.2533,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.8273,"elapsed_within_tithi_degrees":3.8273},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":154.2533,"elapsed_within_degrees":7.5866},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.6792},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.138,"elongation":3.827},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.138,"opposition_distance":176.173}},"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":"06:01","sunsetLocal":"18:19","solarNoonLocal":"12:10","dayLengthHours":12.299938343757098,"dayLengthDisplay":"12 Hours 18 Mins 00 Secs","nightLengthDisplay":"11 Hours 42 Mins 00 Secs","moonriseLocal":"06:12","moonsetLocal":"18:24","rahuKala":{"name":"Rāhu Kāla","start":"12:10","end":"13:43","startHours":12.171992963772094,"endHours":13.709485256741733,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:34","end":"09:06","startHours":7.559516084863183,"endHours":9.09700837783282,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:38","end":"12:10","startHours":10.634500670802456,"endHours":12.171992963772094,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.892009405436868,"endHours":9.302007350228772,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:52","startHours":6.534521222883424,"endHours":6.862519578716947,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:35","startHours":11.76199501898019,"endHours":12.581990908563998,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:12","startHours":4.382032012725932,"endHours":5.202027902309739,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:00","end":"06:01","startHours":4.997028929913787,"endHours":6.022023791893545,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:03","startHours":14.221982687731611,"endHours":15.041978577315417,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.121962135650644,"endHours":18.521962135650643,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:50","startHours":18.321962135650644,"endHours":18.834459566640522,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.071962135650644,"endHours":19.821962135650644,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:35","startHours":23.76199501898019,"endHours":24.581990908564,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:01","end":"07:34","startHours":6.022023791893545,"endHours":7.559516084863183,"quality":"auspicious"},{"name":"Amṛta","start":"07:34","end":"09:06","startHours":7.559516084863183,"endHours":9.09700837783282,"quality":"auspicious"},{"name":"Kāla","start":"09:06","end":"10:38","startHours":9.09700837783282,"endHours":10.634500670802456,"quality":"inauspicious"},{"name":"Śubha","start":"10:38","end":"12:10","startHours":10.634500670802456,"endHours":12.171992963772094,"quality":"auspicious"},{"name":"Roga","start":"12:10","end":"13:43","startHours":12.171992963772094,"endHours":13.709485256741733,"quality":"inauspicious"},{"name":"Udveg","start":"13:43","end":"15:15","startHours":13.709485256741733,"endHours":15.246977549711369,"quality":"inauspicious"},{"name":"Chala","start":"15:15","end":"16:47","startHours":15.246977549711369,"endHours":16.784469842681006,"quality":"neutral"},{"name":"Labha","start":"16:47","end":"18:19","startHours":16.784469842681006,"endHours":18.321962135650644,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:19","end":"19:47","startHours":18.321962135650644,"endHours":19.784469842681006,"quality":"inauspicious"},{"name":"Chala","start":"19:47","end":"21:15","startHours":19.784469842681006,"endHours":21.246977549711367,"quality":"neutral"},{"name":"Labha","start":"21:15","end":"22:43","startHours":21.246977549711367,"endHours":22.709485256741733,"quality":"auspicious"},{"name":"Amṛta","start":"22:43","end":"00:10","startHours":22.709485256741733,"endHours":24.171992963772094,"quality":"auspicious"},{"name":"Kāla","start":"00:10","end":"01:38","startHours":24.171992963772094,"endHours":25.634500670802456,"quality":"inauspicious"},{"name":"Śubha","start":"01:38","end":"03:06","startHours":25.634500670802456,"endHours":27.09700837783282,"quality":"auspicious"},{"name":"Roga","start":"03:06","end":"04:34","startHours":27.09700837783282,"endHours":28.559516084863183,"quality":"inauspicious"},{"name":"Udveg","start":"04:34","end":"06:01","startHours":28.559516084863183,"endHours":30.022023791893545,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.022023791893545,"endHours":7.022023791893545,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.022023791893545,"endHours":8.022023791893545,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.022023791893545,"endHours":9.022023791893545,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.022023791893545,"endHours":10.022023791893545,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.022023791893545,"endHours":11.022023791893545,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.022023791893545,"endHours":12.022023791893545,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.022023791893545,"endHours":13.022023791893545,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.022023791893545,"endHours":14.022023791893545,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.022023791893545,"endHours":15.022023791893545,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.022023791893545,"endHours":16.022023791893545,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.022023791893545,"endHours":17.022023791893545,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.022023791893545,"endHours":18.022023791893545,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.022023791893545,"endHours":19.022023791893545,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.022023791893545,"endHours":20.022023791893545,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.022023791893545,"endHours":21.022023791893545,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.022023791893545,"endHours":22.022023791893545,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.022023791893545,"endHours":23.022023791893545,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.022023791893545,"endHours":24.022023791893545,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.022023791893545,"endHours":25.022023791893545,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.022023791893545,"endHours":26.022023791893545,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.022023791893545,"endHours":27.022023791893545,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.022023791893545,"endHours":28.022023791893545,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.022023791893545,"endHours":29.022023791893545,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.022023791893545,"endHours":30.022023791893545,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":2.217772195700494,"eotMinutes":6.610022173674397,"ayanamsa":23.3461}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Pratipada · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[{"id":"sharadiya-navratri-start","name":"Śāradīya Navrātri Start","name_sanskrit":"शारदीय नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"Autumn Navrātri begins; Devī Mahiṣāsura-mardinī worship for 9 nights.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 18, 1963 CE · Ṛṣikeśa · Vidhyamitra","description":"September 18, 1963 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 06:01, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1963-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1963-09-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/1963-09-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/1963-09-18","x-default":"https://vidhyamitra.com/city/rishikesh/1963-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T10:39:40.683Z","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":"2026-05-20T10:39:40.684Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T10:39:40.684Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}