{"id":"vidhyamitra:city-day:rishikesh:1864-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1864-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1864-02-13","date_display":"February 13, 1864 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":1864,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401914.770833,"kali_year":4965,"ahargana":1813449.2708,"sun":{"sidereal_longitude":302.0939,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":10.7274,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.6336,"elapsed_within_tithi_degrees":8.6336},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.7274,"elapsed_within_degrees":10.7274},"yoga":{"number":24,"name":"Śukla","sum_longitude":312.8213},"karana":{"half_tithi_index":11,"name":"Taitila"},"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":1864,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2401914.770833,"ahargana":1813449.2708,"kali_year":4965,"ayanamsa_lahiri":21.9548,"grahas":{"sun":{"sidereal_longitude":301.68245,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":13.373449999999991,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":1.829},"mars":{"sidereal_longitude":261.6058499999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":277.93084999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":216.47965,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":264.89324999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":176.91625,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":214.7307,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":34.7307,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"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":1864,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401914.770833,"kali_year":4965,"ahargana":1813449.2708,"sun":{"sidereal_longitude":302.0939,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":10.7274,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":68.6336,"elapsed_within_tithi_degrees":8.6336},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.7274,"elapsed_within_degrees":10.7274},"yoga":{"number":24,"name":"Śukla","sum_longitude":312.8213},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.829,"elongation":68.634},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.829,"opposition_distance":111.366}},"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":11.055655362405403,"dayLengthDisplay":"11 Hours 03 Mins 20 Secs","nightLengthDisplay":"12 Hours 56 Mins 40 Secs","moonriseLocal":"10:44","moonsetLocal":"23:53","rahuKala":{"name":"Rāhu Kāla","start":"09:46","end":"11:09","startHours":9.761571580409019,"endHours":11.143528500709696,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:17","startHours":13.907442341311047,"endHours":15.28939926161172,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:00","end":"08:23","startHours":6.997657739807669,"endHours":8.379614660108345,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:57","startHours":9.577310657702263,"endHours":9.945832503115776,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:45","startHours":7.45831004657456,"endHours":7.753127522905371,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:54","startHours":12.156963575596857,"endHours":12.894007266423882,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:16","startHours":5.523570358153615,"endHours":6.260614048980642,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:00","startHours":6.076353126273885,"endHours":6.997657739807669,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:06","startHours":14.368094648077939,"endHours":15.105138338904966,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:51","end":"18:15","startHours":17.85331310221307,"endHours":18.25331310221307,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:03","end":"18:31","startHours":18.05331310221307,"endHours":18.513965408979963,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:48","end":"19:33","startHours":17.80331310221307,"endHours":19.55331310221307,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:54","startHours":24.156963575596855,"endHours":24.894007266423884,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:00","end":"08:23","startHours":6.997657739807669,"endHours":8.379614660108345,"quality":"inauspicious"},{"name":"Śubha","start":"08:23","end":"09:46","startHours":8.379614660108345,"endHours":9.761571580409019,"quality":"auspicious"},{"name":"Roga","start":"09:46","end":"11:09","startHours":9.761571580409019,"endHours":11.143528500709696,"quality":"inauspicious"},{"name":"Udveg","start":"11:09","end":"12:32","startHours":11.143528500709696,"endHours":12.52548542101037,"quality":"inauspicious"},{"name":"Chala","start":"12:32","end":"13:54","startHours":12.52548542101037,"endHours":13.907442341311047,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:17","startHours":13.907442341311047,"endHours":15.28939926161172,"quality":"auspicious"},{"name":"Amṛta","start":"15:17","end":"16:40","startHours":15.28939926161172,"endHours":16.671356181912397,"quality":"auspicious"},{"name":"Kāla","start":"16:40","end":"18:03","startHours":16.671356181912397,"endHours":18.05331310221307,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:03","end":"19:40","startHours":18.05331310221307,"endHours":19.671356181912394,"quality":"auspicious"},{"name":"Amṛta","start":"19:40","end":"21:17","startHours":19.671356181912394,"endHours":21.28939926161172,"quality":"auspicious"},{"name":"Kāla","start":"21:17","end":"22:54","startHours":21.28939926161172,"endHours":22.907442341311047,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:32","startHours":22.907442341311047,"endHours":24.52548542101037,"quality":"auspicious"},{"name":"Roga","start":"00:32","end":"02:09","startHours":24.52548542101037,"endHours":26.143528500709692,"quality":"inauspicious"},{"name":"Udveg","start":"02:09","end":"03:46","startHours":26.143528500709692,"endHours":27.76157158040902,"quality":"inauspicious"},{"name":"Chala","start":"03:46","end":"05:23","startHours":27.76157158040902,"endHours":29.379614660108345,"quality":"neutral"},{"name":"Labha","start":"05:23","end":"07:00","startHours":29.379614660108345,"endHours":30.997657739807668,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":6.997657739807669,"endHours":7.997657739807669,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":7.997657739807669,"endHours":8.997657739807668,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":8.997657739807668,"endHours":9.997657739807668,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":9.997657739807668,"endHours":10.997657739807668,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":10.997657739807668,"endHours":11.997657739807668,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":11.997657739807668,"endHours":12.997657739807668,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":12.997657739807668,"endHours":13.997657739807668,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":13.997657739807668,"endHours":14.997657739807668,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":14.997657739807668,"endHours":15.997657739807668,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":15.997657739807668,"endHours":16.997657739807668,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":16.997657739807668,"endHours":17.997657739807668,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":17.997657739807668,"endHours":18.997657739807668,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":18.997657739807668,"endHours":19.997657739807668,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":19.997657739807668,"endHours":20.997657739807668,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":20.997657739807668,"endHours":21.997657739807668,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":21.997657739807668,"endHours":22.997657739807668,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":22.997657739807668,"endHours":23.997657739807668,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":23.997657739807668,"endHours":24.997657739807668,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":24.997657739807668,"endHours":25.997657739807668,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":25.997657739807668,"endHours":26.997657739807668,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":26.997657739807668,"endHours":27.997657739807668,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":27.997657739807668,"endHours":28.997657739807668,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":28.997657739807668,"endHours":29.997657739807668,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":29.997657739807668,"endHours":30.997657739807668,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.639596874122203,"eotMinutes":-14.599525260622107,"ayanamsa":21.9548}},"calendars":{"vikram_samvat":1921,"vikram_samvatsara":"Īśvara","saka_samvat":1786,"saka_samvatsara":"Raktākṣī","bengali_samvat":1271,"malayalam_era":1040,"nanakshahi_year":395,"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":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ṣaṣṭhī · Vikram 1921 Īśvara · Śaka 1786 Raktākṣī"},"festivals":[],"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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 February 13, 1864 CE · Ṛṣikeśa · Vidhyamitra","description":"February 13, 1864 CE for Ṛṣikeśa: Śukla Ṣaṣṭhī, sūryodaya 07:00, sūryāsta 18:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1864-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1864-02-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/1864-02-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/1864-02-13","x-default":"https://vidhyamitra.com/city/rishikesh/1864-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T03:10:29.169Z","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":"2026-05-31T03:10:29.169Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T03:10:29.169Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}