{"id":"vidhyamitra:city-day:rishikesh:1858-04-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1858-04-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1858-04-19","date_display":"April 19, 1858 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":1858,"month":4,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2399788.770833,"kali_year":4960,"ahargana":1811323.2708,"sun":{"sidereal_longitude":7.2476,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":74.1153,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":66.8677,"elapsed_within_tithi_degrees":6.8677},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":74.1153,"elapsed_within_degrees":7.4487},"yoga":{"number":7,"name":"Sukarma","sum_longitude":81.3629},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1858,"month":4,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2399788.770833,"ahargana":1811323.2708,"kali_year":4960,"ayanamsa_lahiri":21.8735,"grahas":{"sun":{"sidereal_longitude":6.810678999999993,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":76.351179,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false,"latitude":4.309},"mars":{"sidereal_longitude":221.75627899999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":28.79007899999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":30.877179000000012,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":21.28637900000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":91.32047899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":327.3764,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":147.3764,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":1858,"month":4,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2399788.770833,"kali_year":4960,"ahargana":1811323.2708,"sun":{"sidereal_longitude":7.2476,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":74.1153,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":66.8677,"elapsed_within_tithi_degrees":6.8677},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":74.1153,"elapsed_within_degrees":7.4487},"yoga":{"number":7,"name":"Sukarma","sum_longitude":81.3629},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.309,"elongation":66.868},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.309,"opposition_distance":113.132}},"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":"05:46","sunsetLocal":"18:46","solarNoonLocal":"12:16","dayLengthHours":12.994357623008732,"dayLengthDisplay":"12 Hours 59 Mins 40 Secs","nightLengthDisplay":"11 Hours 00 Mins 20 Secs","moonriseLocal":"09:54","moonsetLocal":"23:55","rahuKala":{"name":"Rāhu Kāla","start":"07:24","end":"09:01","startHours":7.396933618128585,"endHours":9.021228321004678,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:39","end":"12:16","startHours":10.645523023880768,"endHours":12.269817726756859,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:54","end":"15:31","startHours":13.894112429632951,"endHours":15.518407132509044,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:14","startHours":8.804655693954532,"endHours":9.237800948054822,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.314070482877858,"endHours":6.660586686158091,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:42","startHours":11.836672472656568,"endHours":12.70296298085715,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:02","end":"04:54","startHours":4.04005789885133,"endHours":4.906348407051912,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:46","startHours":4.689775780001766,"endHours":5.772638915252494,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:18","startHours":14.435543997258314,"endHours":15.301834505458896,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:34","end":"18:58","startHours":18.566996538261225,"endHours":18.966996538261224,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:46","end":"19:19","startHours":18.766996538261225,"endHours":19.308428105886588,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:31","end":"20:16","startHours":18.516996538261225,"endHours":20.266996538261225,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:42","startHours":23.836672472656566,"endHours":24.70296298085715,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:46","end":"07:24","startHours":5.772638915252494,"endHours":7.396933618128585,"quality":"auspicious"},{"name":"Kāla","start":"07:24","end":"09:01","startHours":7.396933618128585,"endHours":9.021228321004678,"quality":"inauspicious"},{"name":"Śubha","start":"09:01","end":"10:39","startHours":9.021228321004678,"endHours":10.645523023880768,"quality":"auspicious"},{"name":"Roga","start":"10:39","end":"12:16","startHours":10.645523023880768,"endHours":12.269817726756859,"quality":"inauspicious"},{"name":"Udveg","start":"12:16","end":"13:54","startHours":12.269817726756859,"endHours":13.894112429632951,"quality":"inauspicious"},{"name":"Chala","start":"13:54","end":"15:31","startHours":13.894112429632951,"endHours":15.518407132509044,"quality":"neutral"},{"name":"Labha","start":"15:31","end":"17:09","startHours":15.518407132509044,"endHours":17.142701835385132,"quality":"auspicious"},{"name":"Amṛta","start":"17:09","end":"18:46","startHours":17.142701835385132,"endHours":18.766996538261225,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:46","end":"20:09","startHours":18.766996538261225,"endHours":20.142701835385132,"quality":"neutral"},{"name":"Labha","start":"20:09","end":"21:31","startHours":20.142701835385132,"endHours":21.51840713250904,"quality":"auspicious"},{"name":"Amṛta","start":"21:31","end":"22:54","startHours":21.51840713250904,"endHours":22.89411242963295,"quality":"auspicious"},{"name":"Kāla","start":"22:54","end":"00:16","startHours":22.89411242963295,"endHours":24.26981772675686,"quality":"inauspicious"},{"name":"Śubha","start":"00:16","end":"01:39","startHours":24.26981772675686,"endHours":25.645523023880767,"quality":"auspicious"},{"name":"Roga","start":"01:39","end":"03:01","startHours":25.645523023880767,"endHours":27.021228321004678,"quality":"inauspicious"},{"name":"Udveg","start":"03:01","end":"04:24","startHours":27.021228321004678,"endHours":28.396933618128585,"quality":"inauspicious"},{"name":"Chala","start":"04:24","end":"05:46","startHours":28.396933618128585,"endHours":29.772638915252493,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.772638915252494,"endHours":6.772638915252494,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.772638915252494,"endHours":7.772638915252494,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.772638915252494,"endHours":8.772638915252493,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.772638915252493,"endHours":9.772638915252493,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.772638915252493,"endHours":10.772638915252493,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.772638915252493,"endHours":11.772638915252493,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.772638915252493,"endHours":12.772638915252493,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.772638915252493,"endHours":13.772638915252493,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.772638915252493,"endHours":14.772638915252493,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.772638915252493,"endHours":15.772638915252493,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.772638915252493,"endHours":16.772638915252493,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.772638915252493,"endHours":17.772638915252493,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.772638915252493,"endHours":18.772638915252493,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.772638915252493,"endHours":19.772638915252493,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.772638915252493,"endHours":20.772638915252493,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.772638915252493,"endHours":21.772638915252493,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.772638915252493,"endHours":22.772638915252493,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.772638915252493,"endHours":23.772638915252493,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.772638915252493,"endHours":24.772638915252493,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.772638915252493,"endHours":25.772638915252493,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.772638915252493,"endHours":26.772638915252493,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.772638915252493,"endHours":27.772638915252493,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.772638915252493,"endHours":28.772638915252493,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.772638915252493,"endHours":29.772638915252493,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.005553086765675,"eotMinutes":0.740536394588492,"ayanamsa":21.8735}},"calendars":{"vikram_samvat":1915,"vikram_samvatsara":"Prajāpati","saka_samvat":1780,"saka_samvatsara":"Kālayukta","bengali_samvat":1265,"malayalam_era":1034,"nanakshahi_year":389,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Ṣaṣṭhī · Vikram 1915 Prajāpati · Śaka 1780 Kālayukta"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 April 19, 1858 CE · Ṛṣikeśa · Vidhyamitra","description":"April 19, 1858 CE for Ṛṣikeśa: Śukla Ṣaṣṭhī, sūryodaya 05:46, sūryāsta 18:46.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1858-04-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1858-04-19","sa":"https://sa.vidhyamitra.com/city/rishikesh/1858-04-19","hi":"https://hi.vidhyamitra.com/city/rishikesh/1858-04-19","x-default":"https://vidhyamitra.com/city/rishikesh/1858-04-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:09:56.019Z","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":"2026-06-01T01:09:56.019Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:09:56.019Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}