{"id":"vidhyamitra:city-day:rishikesh:1965-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1965-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1965-02-12","date_display":"February 12, 1965 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":1965,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438803.770833,"kali_year":5066,"ahargana":1850338.2708,"sun":{"sidereal_longitude":299.9257,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":67.6605,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.7348,"elapsed_within_tithi_degrees":7.7348},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.6605,"elapsed_within_degrees":0.9938},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.5862},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":1965,"month":2,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438803.770833,"ahargana":1850338.2708,"kali_year":5066,"ayanamsa_lahiri":23.3657,"grahas":{"sun":{"sidereal_longitude":299.758919,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":64.67591900000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":0.5857},"mars":{"sidereal_longitude":153.795519,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":291.185419,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":25.205918999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":285.548719,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":313.15811899999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":60.174,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":240.174,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":1965,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438803.770833,"kali_year":5066,"ahargana":1850338.2708,"sun":{"sidereal_longitude":299.9257,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":67.6605,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.7348,"elapsed_within_tithi_degrees":7.7348},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.6605,"elapsed_within_degrees":0.9938},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.5862},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.586,"elongation":127.735},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.586,"opposition_distance":52.265}},"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":"07:00","sunsetLocal":"18:03","solarNoonLocal":"12:32","dayLengthHours":11.041854138661344,"dayLengthDisplay":"11 Hours 02 Mins 31 Secs","nightLengthDisplay":"12 Hours 57 Mins 29 Secs","moonriseLocal":"13:50","moonsetLocal":"03:52","rahuKala":{"name":"Rāhu Kāla","start":"11:09","end":"12:32","startHours":11.145173767582174,"endHours":12.525405534914842,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:17","end":"16:40","startHours":15.285869069580178,"endHours":16.666100836912847,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:23","end":"09:46","startHours":8.384710232916838,"endHours":9.764942000249505,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:57","startHours":9.580911097938483,"endHours":9.948972902560527,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:46","startHours":7.464555721361725,"endHours":7.759005165059361,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.157343730292796,"endHours":12.893467339536885,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:16","startHours":5.53223124709599,"endHours":6.268354856340079,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:00","startHours":6.084323954029057,"endHours":7.004478465584169,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:06","startHours":14.365714558025065,"endHours":15.101838167269154,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:51","end":"18:15","startHours":17.846332604245514,"endHours":18.246332604245513,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:03","end":"18:30","startHours":18.046332604245514,"endHours":18.50640986002307,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:48","end":"19:33","startHours":17.796332604245514,"endHours":19.546332604245514,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.157343730292794,"endHours":24.893467339536883,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:00","end":"08:23","startHours":7.004478465584169,"endHours":8.384710232916838,"quality":"neutral"},{"name":"Labha","start":"08:23","end":"09:46","startHours":8.384710232916838,"endHours":9.764942000249505,"quality":"auspicious"},{"name":"Amṛta","start":"09:46","end":"11:09","startHours":9.764942000249505,"endHours":11.145173767582174,"quality":"auspicious"},{"name":"Kāla","start":"11:09","end":"12:32","startHours":11.145173767582174,"endHours":12.525405534914842,"quality":"inauspicious"},{"name":"Śubha","start":"12:32","end":"13:54","startHours":12.525405534914842,"endHours":13.90563730224751,"quality":"auspicious"},{"name":"Roga","start":"13:54","end":"15:17","startHours":13.90563730224751,"endHours":15.285869069580178,"quality":"inauspicious"},{"name":"Udveg","start":"15:17","end":"16:40","startHours":15.285869069580178,"endHours":16.666100836912847,"quality":"inauspicious"},{"name":"Chala","start":"16:40","end":"18:03","startHours":16.666100836912847,"endHours":18.046332604245514,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:03","end":"19:40","startHours":18.046332604245514,"endHours":19.666100836912847,"quality":"inauspicious"},{"name":"Udveg","start":"19:40","end":"21:17","startHours":19.666100836912847,"endHours":21.285869069580176,"quality":"inauspicious"},{"name":"Chala","start":"21:17","end":"22:54","startHours":21.285869069580176,"endHours":22.90563730224751,"quality":"neutral"},{"name":"Labha","start":"22:54","end":"00:32","startHours":22.90563730224751,"endHours":24.525405534914842,"quality":"auspicious"},{"name":"Amṛta","start":"00:32","end":"02:09","startHours":24.525405534914842,"endHours":26.145173767582172,"quality":"auspicious"},{"name":"Kāla","start":"02:09","end":"03:46","startHours":26.145173767582172,"endHours":27.764942000249505,"quality":"inauspicious"},{"name":"Śubha","start":"03:46","end":"05:23","startHours":27.764942000249505,"endHours":29.384710232916838,"quality":"auspicious"},{"name":"Roga","start":"05:23","end":"07:00","startHours":29.384710232916838,"endHours":31.00447846558417,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":7.004478465584169,"endHours":8.00447846558417,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":8.00447846558417,"endHours":9.00447846558417,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":9.00447846558417,"endHours":10.00447846558417,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":10.00447846558417,"endHours":11.00447846558417,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":11.00447846558417,"endHours":12.00447846558417,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":12.00447846558417,"endHours":13.00447846558417,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":13.00447846558417,"endHours":14.00447846558417,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":14.00447846558417,"endHours":15.00447846558417,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":15.00447846558417,"endHours":16.00447846558417,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":16.00447846558417,"endHours":17.00447846558417,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":17.00447846558417,"endHours":18.00447846558417,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":18.00447846558417,"endHours":19.00447846558417,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":19.00447846558417,"endHours":20.00447846558417,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":20.00447846558417,"endHours":21.00447846558417,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":21.00447846558417,"endHours":22.00447846558417,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":22.00447846558417,"endHours":23.00447846558417,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":23.00447846558417,"endHours":24.00447846558417,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":24.00447846558417,"endHours":25.00447846558417,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":25.00447846558417,"endHours":26.00447846558417,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":26.00447846558417,"endHours":27.00447846558417,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":27.00447846558417,"endHours":28.00447846558417,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":28.00447846558417,"endHours":29.00447846558417,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":29.00447846558417,"endHours":30.00447846558417,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":30.00447846558417,"endHours":31.00447846558417,"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.80805166399287,"eotMinutes":-14.594732094890398,"ayanamsa":23.3657}},"calendars":{"vikram_samvat":2022,"vikram_samvatsara":"Kālayukta","saka_samvat":1887,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1372,"malayalam_era":1141,"nanakshahi_year":496,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ekādaśī · Vikram 2022 Kālayukta · Śaka 1887 Viśvāvasu"},"festivals":[{"id":"jaya-ekadashi","name":"Jayā Ekādaśī","name_sanskrit":"जया एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Removes pretatva (ghost-state); grants victory.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi_ingress":"Kumbha"},"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 February 12, 1965 CE · Ṛṣikeśa · Vidhyamitra","description":"February 12, 1965 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 07:00, sūryāsta 18:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1965-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1965-02-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/1965-02-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/1965-02-12","x-default":"https://vidhyamitra.com/city/rishikesh/1965-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:15:44.037Z","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":"2026-06-01T04:15:44.037Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:15:44.037Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}