{"id":"vidhyamitra:city-day:rishikesh:1971-09-03:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1971-09-03","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-09-03","date_display":"September 3, 1971 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":1971,"month":9,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441197.770833,"kali_year":5073,"ahargana":1852732.2708,"sun":{"sidereal_longitude":135.8168,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":287.2056,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":151.3888,"elapsed_within_tithi_degrees":7.3888},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":287.2056,"elapsed_within_degrees":7.2056},"yoga":{"number":5,"name":"Śobhana","sum_longitude":63.0224},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1971,"month":9,"day":3,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441197.770833,"ahargana":1852732.2708,"kali_year":5073,"ayanamsa_lahiri":23.4573,"grahas":{"sun":{"sidereal_longitude":136.44105100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":287.116951,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":-0.4795},"mars":{"sidereal_longitude":289.08125100000007,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":124.71235100000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":216.247251,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":138.55765100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":43.20965100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":293.3283,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":113.3283,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"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":1971,"month":9,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441197.770833,"kali_year":5073,"ahargana":1852732.2708,"sun":{"sidereal_longitude":135.8168,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":287.2056,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":151.3888,"elapsed_within_tithi_degrees":7.3888},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":287.2056,"elapsed_within_degrees":7.2056},"yoga":{"number":5,"name":"Śobhana","sum_longitude":63.0224},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.479,"elongation":151.389},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.479,"opposition_distance":28.611}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.93,"elongation":2.643}]},"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":"05:54","sunsetLocal":"18:38","solarNoonLocal":"12:16","dayLengthHours":12.741496376071108,"dayLengthDisplay":"12 Hours 44 Mins 29 Secs","nightLengthDisplay":"11 Hours 15 Mins 31 Secs","moonriseLocal":"16:58","moonsetLocal":"03:39","rahuKala":{"name":"Rāhu Kāla","start":"10:40","end":"12:16","startHours":10.670264884648503,"endHours":12.262951931657394,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:27","end":"17:02","startHours":15.448326025675168,"endHours":17.04101307268406,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:29","end":"09:05","startHours":7.484890790630727,"endHours":9.077577837639616,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:17","startHours":8.865219564705097,"endHours":9.289936110574136,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:46","startHours":6.423099425958135,"endHours":6.762872662653365,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:41","startHours":11.838235385788355,"endHours":12.68766847752643,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:12","end":"05:03","startHours":4.193337560145691,"endHours":5.042770651883766,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:54","startHours":4.830412378949246,"endHours":5.892203743621839,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:14","startHours":14.386534661002578,"endHours":15.235967752740653,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.433700119692947,"endHours":18.833700119692946,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:10","startHours":18.633700119692946,"endHours":19.164595802029243,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.383700119692946,"endHours":20.133700119692946,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:41","startHours":23.838235385788355,"endHours":24.687668477526426,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:54","end":"07:29","startHours":5.892203743621839,"endHours":7.484890790630727,"quality":"neutral"},{"name":"Labha","start":"07:29","end":"09:05","startHours":7.484890790630727,"endHours":9.077577837639616,"quality":"auspicious"},{"name":"Amṛta","start":"09:05","end":"10:40","startHours":9.077577837639616,"endHours":10.670264884648503,"quality":"auspicious"},{"name":"Kāla","start":"10:40","end":"12:16","startHours":10.670264884648503,"endHours":12.262951931657394,"quality":"inauspicious"},{"name":"Śubha","start":"12:16","end":"13:51","startHours":12.262951931657394,"endHours":13.855638978666281,"quality":"auspicious"},{"name":"Roga","start":"13:51","end":"15:27","startHours":13.855638978666281,"endHours":15.448326025675168,"quality":"inauspicious"},{"name":"Udveg","start":"15:27","end":"17:02","startHours":15.448326025675168,"endHours":17.04101307268406,"quality":"inauspicious"},{"name":"Chala","start":"17:02","end":"18:38","startHours":17.04101307268406,"endHours":18.633700119692946,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:38","end":"20:02","startHours":18.633700119692946,"endHours":20.04101307268406,"quality":"inauspicious"},{"name":"Udveg","start":"20:02","end":"21:27","startHours":20.04101307268406,"endHours":21.44832602567517,"quality":"inauspicious"},{"name":"Chala","start":"21:27","end":"22:51","startHours":21.44832602567517,"endHours":22.85563897866628,"quality":"neutral"},{"name":"Labha","start":"22:51","end":"00:16","startHours":22.85563897866628,"endHours":24.26295193165739,"quality":"auspicious"},{"name":"Amṛta","start":"00:16","end":"01:40","startHours":24.26295193165739,"endHours":25.670264884648503,"quality":"auspicious"},{"name":"Kāla","start":"01:40","end":"03:05","startHours":25.670264884648503,"endHours":27.077577837639616,"quality":"inauspicious"},{"name":"Śubha","start":"03:05","end":"04:29","startHours":27.077577837639616,"endHours":28.48489079063073,"quality":"auspicious"},{"name":"Roga","start":"04:29","end":"05:54","startHours":28.48489079063073,"endHours":29.892203743621838,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.892203743621839,"endHours":6.892203743621839,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.892203743621839,"endHours":7.892203743621839,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.892203743621839,"endHours":8.892203743621838,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.892203743621838,"endHours":9.892203743621838,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.892203743621838,"endHours":10.892203743621838,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.892203743621838,"endHours":11.892203743621838,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.892203743621838,"endHours":12.892203743621838,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.892203743621838,"endHours":13.892203743621838,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.892203743621838,"endHours":14.892203743621838,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.892203743621838,"endHours":15.892203743621838,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.892203743621838,"endHours":16.892203743621838,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.892203743621838,"endHours":17.892203743621838,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.892203743621838,"endHours":18.892203743621838,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.892203743621838,"endHours":19.892203743621838,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.892203743621838,"endHours":20.892203743621838,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.892203743621838,"endHours":21.892203743621838,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.892203743621838,"endHours":22.892203743621838,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.892203743621838,"endHours":23.892203743621838,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.892203743621838,"endHours":24.892203743621838,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.892203743621838,"endHours":25.892203743621838,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.892203743621838,"endHours":26.892203743621838,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.892203743621838,"endHours":27.892203743621838,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.892203743621838,"endHours":28.892203743621838,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.892203743621838,"endHours":29.892203743621838,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.856666122025137,"eotMinutes":1.1524841005564963,"ayanamsa":23.4573}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"id":"onam","name":"Onam (Vāmana / King Bali)","name_sanskrit":"ओणम् (वामन-बलि स्मरण)","tradition":"Regional","associated_deity":"Vāmana + King Bali","significance":"Kerala festival; King Bali's annual return to Kerala. Aligned with Thiru-Onam (Śravaṇa nakshatra in Bhādrapada).","vrata":false,"detection":{"nakshatra_name":"Śravaṇa","lunar_month":"Bhādrapada"},"precedence":2},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 September 3, 1971 CE · Ṛṣikeśa · Vidhyamitra","description":"September 3, 1971 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 05:54, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1971-09-03","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1971-09-03","sa":"https://sa.vidhyamitra.com/city/rishikesh/1971-09-03","hi":"https://hi.vidhyamitra.com/city/rishikesh/1971-09-03","x-default":"https://vidhyamitra.com/city/rishikesh/1971-09-03"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:50:59.504Z","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":"2026-05-31T21:50:59.504Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:50:59.504Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}