{"id":"vidhyamitra:city-day:rishikesh:1866-05-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1866-05-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1866-05-22","date_display":"May 22, 1866 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":1866,"month":5,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402743.770833,"kali_year":4968,"ahargana":1814278.2708,"sun":{"sidereal_longitude":38.9409,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":133.27,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.329,"elapsed_within_tithi_degrees":10.329},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":133.27,"elapsed_within_degrees":13.27},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.2109},"karana":{"half_tithi_index":15,"name":"Bava"},"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":1866,"month":5,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2402743.770833,"ahargana":1814278.2708,"kali_year":4968,"ayanamsa_lahiri":21.9865,"grahas":{"sun":{"sidereal_longitude":38.698976000000016,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":135.986376,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-2.7399},"mars":{"sidereal_longitude":353.609076,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":16.835076000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":282.60417600000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":62.171576000000016,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":196.46147599999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":170.8063,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":350.8063,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1866,"month":5,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2402743.770833,"kali_year":4968,"ahargana":1814278.2708,"sun":{"sidereal_longitude":38.9409,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":133.27,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.329,"elapsed_within_tithi_degrees":10.329},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":133.27,"elapsed_within_degrees":13.27},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.2109},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.74,"elongation":94.329},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.74,"opposition_distance":85.671}},"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":"05:20","sunsetLocal":"19:07","solarNoonLocal":"12:13","dayLengthHours":13.789714954913032,"dayLengthDisplay":"13 Hours 47 Mins 23 Secs","nightLengthDisplay":"10 Hours 12 Mins 37 Secs","moonriseLocal":"12:20","moonsetLocal":"01:05","rahuKala":{"name":"Rāhu Kāla","start":"15:40","end":"17:24","startHours":15.671726185290138,"endHours":17.395440554654265,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:47","end":"10:30","startHours":8.776868707833621,"endHours":10.500583077197751,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:13","end":"13:57","startHours":12.22429744656188,"endHours":13.948011815926009,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"09:00","startHours":8.547040125251737,"endHours":9.006697290415506,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:16","startHours":5.904011425560073,"endHours":6.271737157691088,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:41","startHours":11.764640281398114,"endHours":12.683954611725648,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:29","end":"04:25","startHours":3.4908113084502927,"endHours":4.410125638777828,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:11","end":"05:20","startHours":4.180297056195944,"endHours":5.329439969105364,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:27","startHours":14.52258327238072,"endHours":15.441897602708256,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.919154924018397,"endHours":19.319154924018395,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:42","startHours":19.119154924018396,"endHours":19.693726380473105,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.869154924018396,"endHours":20.619154924018396,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:41","startHours":23.764640281398112,"endHours":24.68395461172565,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:20","end":"07:03","startHours":5.329439969105364,"endHours":7.053154338469493,"quality":"inauspicious"},{"name":"Udveg","start":"07:03","end":"08:47","startHours":7.053154338469493,"endHours":8.776868707833621,"quality":"inauspicious"},{"name":"Chala","start":"08:47","end":"10:30","startHours":8.776868707833621,"endHours":10.500583077197751,"quality":"neutral"},{"name":"Labha","start":"10:30","end":"12:13","startHours":10.500583077197751,"endHours":12.22429744656188,"quality":"auspicious"},{"name":"Amṛta","start":"12:13","end":"13:57","startHours":12.22429744656188,"endHours":13.948011815926009,"quality":"auspicious"},{"name":"Kāla","start":"13:57","end":"15:40","startHours":13.948011815926009,"endHours":15.671726185290138,"quality":"inauspicious"},{"name":"Śubha","start":"15:40","end":"17:24","startHours":15.671726185290138,"endHours":17.395440554654265,"quality":"auspicious"},{"name":"Roga","start":"17:24","end":"19:07","startHours":17.395440554654265,"endHours":19.119154924018396,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:07","end":"20:24","startHours":19.119154924018396,"endHours":20.395440554654268,"quality":"inauspicious"},{"name":"Śubha","start":"20:24","end":"21:40","startHours":20.395440554654268,"endHours":21.671726185290137,"quality":"auspicious"},{"name":"Roga","start":"21:40","end":"22:57","startHours":21.671726185290137,"endHours":22.94801181592601,"quality":"inauspicious"},{"name":"Udveg","start":"22:57","end":"00:13","startHours":22.94801181592601,"endHours":24.22429744656188,"quality":"inauspicious"},{"name":"Chala","start":"00:13","end":"01:30","startHours":24.22429744656188,"endHours":25.500583077197753,"quality":"neutral"},{"name":"Labha","start":"01:30","end":"02:47","startHours":25.500583077197753,"endHours":26.77686870783362,"quality":"auspicious"},{"name":"Amṛta","start":"02:47","end":"04:03","startHours":26.77686870783362,"endHours":28.053154338469493,"quality":"auspicious"},{"name":"Kāla","start":"04:03","end":"05:20","startHours":28.053154338469493,"endHours":29.329439969105366,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.329439969105364,"endHours":6.329439969105364,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.329439969105364,"endHours":7.329439969105364,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.329439969105364,"endHours":8.329439969105364,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.329439969105364,"endHours":9.329439969105364,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.329439969105364,"endHours":10.329439969105364,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.329439969105364,"endHours":11.329439969105364,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.329439969105364,"endHours":12.329439969105364,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.329439969105364,"endHours":13.329439969105364,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.329439969105364,"endHours":14.329439969105364,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.329439969105364,"endHours":15.329439969105364,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.329439969105364,"endHours":16.329439969105366,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.329439969105366,"endHours":17.329439969105366,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.329439969105366,"endHours":18.329439969105366,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.329439969105366,"endHours":19.329439969105366,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.329439969105366,"endHours":20.329439969105366,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.329439969105366,"endHours":21.329439969105366,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.329439969105366,"endHours":22.329439969105366,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.329439969105366,"endHours":23.329439969105366,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.329439969105366,"endHours":24.329439969105366,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.329439969105366,"endHours":25.329439969105366,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.329439969105366,"endHours":26.329439969105366,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.329439969105366,"endHours":27.329439969105366,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.329439969105366,"endHours":28.329439969105366,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.329439969105366,"endHours":29.329439969105366,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.291768618140587,"eotMinutes":3.4717532062871586,"ayanamsa":21.9865}},"calendars":{"vikram_samvat":1923,"vikram_samvatsara":"Pramāthi","saka_samvat":1788,"saka_samvatsara":"Akṣaya","bengali_samvat":1273,"malayalam_era":1042,"nanakshahi_year":397,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha (Adhika) Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha (Adhika) Śukla Aṣṭamī · Vikram 1923 Pramāthi · Śaka 1788 Akṣaya"},"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":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","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 May 22, 1866 CE · Ṛṣikeśa · Vidhyamitra","description":"May 22, 1866 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 05:20, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1866-05-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1866-05-22","sa":"https://sa.vidhyamitra.com/city/rishikesh/1866-05-22","hi":"https://hi.vidhyamitra.com/city/rishikesh/1866-05-22","x-default":"https://vidhyamitra.com/city/rishikesh/1866-05-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:31:28.263Z","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":"2026-05-31T14:31:28.263Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:31:28.263Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}