{"id":"vidhyamitra:city-day:rishikesh:1971-10-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1971-10-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-10-12","date_display":"October 12, 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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441236.770833,"kali_year":5073,"ahargana":1852771.2708,"sun":{"sidereal_longitude":173.9302,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":90.4753,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":276.5451,"elapsed_within_tithi_degrees":0.5451},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":90.4753,"elapsed_within_degrees":10.4753},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.4054},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441236.770833,"ahargana":1852771.2708,"kali_year":5073,"ayanamsa_lahiri":23.4587,"grahas":{"sun":{"sidereal_longitude":174.60066000000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":94.13036,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":1.5956},"mars":{"sidereal_longitude":295.3134600000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":177.39666,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":222.17255999999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":187.08776,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":42.97695999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":291.2619,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.2619,"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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441236.770833,"kali_year":5073,"ahargana":1852771.2708,"sun":{"sidereal_longitude":173.9302,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":90.4753,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":276.5451,"elapsed_within_tithi_degrees":0.5451},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":90.4753,"elapsed_within_degrees":10.4753},"yoga":{"number":20,"name":"Śiva","sum_longitude":264.4054},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.596,"elongation":83.455},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.596,"opposition_distance":96.545}},"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":"06:15","sunsetLocal":"17:50","solarNoonLocal":"12:03","dayLengthHours":11.579206738152939,"dayLengthDisplay":"11 Hours 34 Mins 45 Secs","nightLengthDisplay":"12 Hours 25 Mins 15 Secs","moonriseLocal":"23:47","moonsetLocal":"13:34","rahuKala":{"name":"Rāhu Kāla","start":"14:56","end":"16:23","startHours":14.93997056971857,"endHours":16.387371411987687,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:09","end":"10:36","startHours":9.150367200642101,"endHours":10.597768042911218,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:03","end":"13:30","startHours":12.045168885180335,"endHours":13.492569727449453,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.957380421672886,"endHours":9.343353979611317,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:03","startHours":6.738032463526905,"endHours":7.046811309877651,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:26","startHours":11.659195327241903,"endHours":12.431142443118766,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:43","end":"05:29","startHours":4.711671284350141,"endHours":5.483618400227003,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:17","end":"06:15","startHours":5.290631621257788,"endHours":6.255565516103866,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:45","startHours":13.975036674872491,"endHours":14.746983790749354,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:38","end":"18:02","startHours":17.634772254256806,"endHours":18.034772254256804,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:50","end":"18:19","startHours":17.834772254256805,"endHours":18.317239201679843,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:35","end":"19:20","startHours":17.584772254256805,"endHours":19.334772254256805,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:26","startHours":23.659195327241903,"endHours":24.431142443118766,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:15","end":"07:42","startHours":6.255565516103866,"endHours":7.702966358372984,"quality":"inauspicious"},{"name":"Udveg","start":"07:42","end":"09:09","startHours":7.702966358372984,"endHours":9.150367200642101,"quality":"inauspicious"},{"name":"Chala","start":"09:09","end":"10:36","startHours":9.150367200642101,"endHours":10.597768042911218,"quality":"neutral"},{"name":"Labha","start":"10:36","end":"12:03","startHours":10.597768042911218,"endHours":12.045168885180335,"quality":"auspicious"},{"name":"Amṛta","start":"12:03","end":"13:30","startHours":12.045168885180335,"endHours":13.492569727449453,"quality":"auspicious"},{"name":"Kāla","start":"13:30","end":"14:56","startHours":13.492569727449453,"endHours":14.93997056971857,"quality":"inauspicious"},{"name":"Śubha","start":"14:56","end":"16:23","startHours":14.93997056971857,"endHours":16.387371411987687,"quality":"auspicious"},{"name":"Roga","start":"16:23","end":"17:50","startHours":16.387371411987687,"endHours":17.834772254256805,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:50","end":"19:23","startHours":17.834772254256805,"endHours":19.387371411987687,"quality":"inauspicious"},{"name":"Śubha","start":"19:23","end":"20:56","startHours":19.387371411987687,"endHours":20.93997056971857,"quality":"auspicious"},{"name":"Roga","start":"20:56","end":"22:30","startHours":20.93997056971857,"endHours":22.492569727449453,"quality":"inauspicious"},{"name":"Udveg","start":"22:30","end":"00:03","startHours":22.492569727449453,"endHours":24.045168885180335,"quality":"inauspicious"},{"name":"Chala","start":"00:03","end":"01:36","startHours":24.045168885180335,"endHours":25.59776804291122,"quality":"neutral"},{"name":"Labha","start":"01:36","end":"03:09","startHours":25.59776804291122,"endHours":27.1503672006421,"quality":"auspicious"},{"name":"Amṛta","start":"03:09","end":"04:42","startHours":27.1503672006421,"endHours":28.702966358372983,"quality":"auspicious"},{"name":"Kāla","start":"04:42","end":"06:15","startHours":28.702966358372983,"endHours":30.255565516103864,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.255565516103866,"endHours":7.255565516103866,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.255565516103866,"endHours":8.255565516103866,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.255565516103866,"endHours":9.255565516103866,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.255565516103866,"endHours":10.255565516103866,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.255565516103866,"endHours":11.255565516103866,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.255565516103866,"endHours":12.255565516103866,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.255565516103866,"endHours":13.255565516103866,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.255565516103866,"endHours":14.255565516103866,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.255565516103866,"endHours":15.255565516103866,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.255565516103866,"endHours":16.255565516103864,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.255565516103864,"endHours":17.255565516103864,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.255565516103864,"endHours":18.255565516103864,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.255565516103864,"endHours":19.255565516103864,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.255565516103864,"endHours":20.255565516103864,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.255565516103864,"endHours":21.255565516103864,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.255565516103864,"endHours":22.255565516103864,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.255565516103864,"endHours":23.255565516103864,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.255565516103864,"endHours":24.255565516103864,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.255565516103864,"endHours":25.255565516103864,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.255565516103864,"endHours":26.255565516103864,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.255565516103864,"endHours":27.255565516103864,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.255565516103864,"endHours":28.255565516103864,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.255565516103864,"endHours":29.255565516103864,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.255565516103864,"endHours":30.255565516103864,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Lumba","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":-7.082473282798197,"eotMinutes":14.219466889179907,"ayanamsa":23.4587}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","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":"Kārtika Kṛṣṇa Navamī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"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 12, 1971 CE · Ṛṣikeśa · Vidhyamitra","description":"October 12, 1971 CE for Ṛṣikeśa: Kṛṣṇa Navamī, sūryodaya 06:15, sūryāsta 17:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1971-10-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1971-10-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/1971-10-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/1971-10-12","x-default":"https://vidhyamitra.com/city/rishikesh/1971-10-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:14:41.953Z","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":"2026-05-30T23:14:41.953Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:14:41.953Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}