{"id":"vidhyamitra:city-day:rishikesh:1971-10-02:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1971-10-02","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-10-02","date_display":"October 2, 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":10,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441226.770833,"kali_year":5073,"ahargana":1852761.2708,"sun":{"sidereal_longitude":164.06,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":310.9604,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.9005,"elapsed_within_tithi_degrees":2.9005},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.9604,"elapsed_within_degrees":4.2938},"yoga":{"number":9,"name":"Śūla","sum_longitude":115.0204},"karana":{"half_tithi_index":24,"name":"Kaulava"},"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":1971,"month":10,"day":2,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441226.770833,"ahargana":1852761.2708,"kali_year":5073,"ayanamsa_lahiri":23.4584,"grahas":{"sun":{"sidereal_longitude":164.73714300000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":309.826043,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":1.4762},"mars":{"sidereal_longitude":292.063843,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":159.90824299999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":220.39444300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":174.62944300000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":43.29554300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":291.7918,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.7918,"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":10,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441226.770833,"kali_year":5073,"ahargana":1852761.2708,"sun":{"sidereal_longitude":164.06,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":310.9604,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.9005,"elapsed_within_tithi_degrees":2.9005},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.9604,"elapsed_within_degrees":4.2938},"yoga":{"number":9,"name":"Śūla","sum_longitude":115.0204},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.476,"elongation":146.9},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.476,"opposition_distance":33.1}},"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":"06:09","sunsetLocal":"18:02","solarNoonLocal":"12:05","dayLengthHours":11.87720536915361,"dayLengthDisplay":"11 Hours 52 Mins 38 Secs","nightLengthDisplay":"12 Hours 07 Mins 22 Secs","moonriseLocal":"16:07","moonsetLocal":"03:24","rahuKala":{"name":"Rāhu Kāla","start":"09:07","end":"10:36","startHours":9.1214513255143,"endHours":10.606101996658502,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:35","end":"15:04","startHours":13.575403338946906,"endHours":15.060054010091104,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:09","end":"07:38","startHours":6.152149983225898,"endHours":7.636800654370099,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.923497902695074,"endHours":9.319404748333527,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:58","startHours":6.647033540273965,"endHours":6.963759016784728,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:29","startHours":11.694845822164249,"endHours":12.486659513441156,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:22","startHours":4.5685226006720825,"endHours":5.3603362919489905,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:10","end":"06:09","startHours":5.162382869129764,"endHours":6.152149983225898,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:52","startHours":14.070286895994972,"endHours":14.862100587271879,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.82935535237951,"endHours":18.229355352379507,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:31","startHours":18.029355352379508,"endHours":18.524238909427574,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.779355352379508,"endHours":19.529355352379508,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:29","startHours":23.69484582216425,"endHours":24.486659513441158,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:09","end":"07:38","startHours":6.152149983225898,"endHours":7.636800654370099,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"09:07","startHours":7.636800654370099,"endHours":9.1214513255143,"quality":"auspicious"},{"name":"Roga","start":"09:07","end":"10:36","startHours":9.1214513255143,"endHours":10.606101996658502,"quality":"inauspicious"},{"name":"Udveg","start":"10:36","end":"12:05","startHours":10.606101996658502,"endHours":12.090752667802704,"quality":"inauspicious"},{"name":"Chala","start":"12:05","end":"13:35","startHours":12.090752667802704,"endHours":13.575403338946906,"quality":"neutral"},{"name":"Labha","start":"13:35","end":"15:04","startHours":13.575403338946906,"endHours":15.060054010091104,"quality":"auspicious"},{"name":"Amṛta","start":"15:04","end":"16:33","startHours":15.060054010091104,"endHours":16.544704681235306,"quality":"auspicious"},{"name":"Kāla","start":"16:33","end":"18:02","startHours":16.544704681235306,"endHours":18.029355352379508,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:02","end":"19:33","startHours":18.029355352379508,"endHours":19.544704681235306,"quality":"auspicious"},{"name":"Amṛta","start":"19:33","end":"21:04","startHours":19.544704681235306,"endHours":21.060054010091104,"quality":"auspicious"},{"name":"Kāla","start":"21:04","end":"22:35","startHours":21.060054010091104,"endHours":22.575403338946906,"quality":"inauspicious"},{"name":"Śubha","start":"22:35","end":"00:05","startHours":22.575403338946906,"endHours":24.090752667802704,"quality":"auspicious"},{"name":"Roga","start":"00:05","end":"01:36","startHours":24.090752667802704,"endHours":25.606101996658502,"quality":"inauspicious"},{"name":"Udveg","start":"01:36","end":"03:07","startHours":25.606101996658502,"endHours":27.1214513255143,"quality":"inauspicious"},{"name":"Chala","start":"03:07","end":"04:38","startHours":27.1214513255143,"endHours":28.6368006543701,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"06:09","startHours":28.6368006543701,"endHours":30.152149983225897,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.152149983225898,"endHours":7.152149983225898,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.152149983225898,"endHours":8.152149983225897,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.152149983225897,"endHours":9.152149983225897,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.152149983225897,"endHours":10.152149983225897,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.152149983225897,"endHours":11.152149983225897,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.152149983225897,"endHours":12.152149983225897,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.152149983225897,"endHours":13.152149983225897,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.152149983225897,"endHours":14.152149983225897,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.152149983225897,"endHours":15.152149983225897,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.152149983225897,"endHours":16.152149983225897,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.152149983225897,"endHours":17.152149983225897,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.152149983225897,"endHours":18.152149983225897,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.152149983225897,"endHours":19.152149983225897,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.152149983225897,"endHours":20.152149983225897,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.152149983225897,"endHours":21.152149983225897,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.152149983225897,"endHours":22.152149983225897,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.152149983225897,"endHours":23.152149983225897,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.152149983225897,"endHours":24.152149983225897,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.152149983225897,"endHours":25.152149983225897,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.152149983225897,"endHours":26.152149983225897,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.152149983225897,"endHours":27.152149983225897,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.152149983225897,"endHours":28.152149983225897,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.152149983225897,"endHours":29.152149983225897,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.152149983225897,"endHours":30.152149983225897,"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Śubha","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":-3.2502723683535923,"eotMinutes":11.484439931837855,"ayanamsa":23.4584}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"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 Trayodaśī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[{"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":"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 2, 1971 CE · Ṛṣikeśa · Vidhyamitra","description":"October 2, 1971 CE for Ṛṣikeśa: Śukla Trayodaśī, sūryodaya 06:09, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1971-10-02","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1971-10-02","sa":"https://sa.vidhyamitra.com/city/rishikesh/1971-10-02","hi":"https://hi.vidhyamitra.com/city/rishikesh/1971-10-02","x-default":"https://vidhyamitra.com/city/rishikesh/1971-10-02"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:46:49.193Z","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":"2026-06-01T04:46:49.193Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:46:49.193Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}