{"id":"vidhyamitra:city-day:rishikesh:2104-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2104-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2104-04-17","date_display":"April 17, 2104 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":2104,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489636.770833,"kali_year":5205,"ahargana":1901171.2708,"sun":{"sidereal_longitude":1.7433,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":258.46,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":256.7167,"elapsed_within_tithi_degrees":4.7167},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.46,"elapsed_within_degrees":5.1267},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.2033},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2104,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489636.770833,"ahargana":1901171.2708,"kali_year":5205,"ayanamsa_lahiri":25.3099,"grahas":{"sun":{"sidereal_longitude":1.8583249999999794,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":254.99742500000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":0.9088},"mars":{"sidereal_longitude":94.402625,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":333.4607249999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":299.991225,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":353.406125,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":226.58822499999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":246.797,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":66.797,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2104,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489636.770833,"kali_year":5205,"ahargana":1901171.2708,"sun":{"sidereal_longitude":1.7433,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":258.46,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":256.7167,"elapsed_within_tithi_degrees":4.7167},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2,"moon_longitude":258.46,"elapsed_within_degrees":5.1267},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.2033},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.909,"elongation":103.283},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.909,"opposition_distance":76.717}},"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":"05:48","sunsetLocal":"18:45","solarNoonLocal":"12:17","dayLengthHours":12.950376316715392,"dayLengthDisplay":"12 Hours 57 Mins 01 Secs","nightLengthDisplay":"11 Hours 02 Mins 59 Secs","moonriseLocal":"00:03","moonsetLocal":"10:15","rahuKala":{"name":"Rāhu Kāla","start":"13:54","end":"15:31","startHours":13.896556223260593,"endHours":15.515353262850017,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:48","end":"07:25","startHours":5.8025710253134735,"endHours":7.4213680649028975,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:02","end":"10:40","startHours":9.04016510449232,"endHours":10.658962144081745,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:15","startHours":8.824325499213732,"endHours":9.256004709770911,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:41","startHours":6.342170038509948,"endHours":6.687513406955692,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:43","startHours":11.846079973113989,"endHours":12.709438394228348,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:56","startHours":4.075854183084754,"endHours":4.939212604199114,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:48","startHours":4.723372998920524,"endHours":5.8025710253134735,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:18","startHours":14.436155236457068,"endHours":15.299513657571428,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:33","end":"18:57","startHours":18.552947342028865,"endHours":18.952947342028864,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:45","end":"19:18","startHours":18.752947342028865,"endHours":19.29254635522534,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:30","end":"20:15","startHours":18.502947342028865,"endHours":20.252947342028865,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:43","startHours":23.846079973113987,"endHours":24.70943839422835,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:48","end":"07:25","startHours":5.8025710253134735,"endHours":7.4213680649028975,"quality":"auspicious"},{"name":"Roga","start":"07:25","end":"09:02","startHours":7.4213680649028975,"endHours":9.04016510449232,"quality":"inauspicious"},{"name":"Udveg","start":"09:02","end":"10:40","startHours":9.04016510449232,"endHours":10.658962144081745,"quality":"inauspicious"},{"name":"Chala","start":"10:40","end":"12:17","startHours":10.658962144081745,"endHours":12.277759183671169,"quality":"neutral"},{"name":"Labha","start":"12:17","end":"13:54","startHours":12.277759183671169,"endHours":13.896556223260593,"quality":"auspicious"},{"name":"Amṛta","start":"13:54","end":"15:31","startHours":13.896556223260593,"endHours":15.515353262850017,"quality":"auspicious"},{"name":"Kāla","start":"15:31","end":"17:08","startHours":15.515353262850017,"endHours":17.13415030243944,"quality":"inauspicious"},{"name":"Śubha","start":"17:08","end":"18:45","startHours":17.13415030243944,"endHours":18.752947342028865,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:45","end":"20:08","startHours":18.752947342028865,"endHours":20.13415030243944,"quality":"auspicious"},{"name":"Kāla","start":"20:08","end":"21:31","startHours":20.13415030243944,"endHours":21.515353262850017,"quality":"inauspicious"},{"name":"Śubha","start":"21:31","end":"22:54","startHours":21.515353262850017,"endHours":22.896556223260593,"quality":"auspicious"},{"name":"Roga","start":"22:54","end":"00:17","startHours":22.896556223260593,"endHours":24.27775918367117,"quality":"inauspicious"},{"name":"Udveg","start":"00:17","end":"01:40","startHours":24.27775918367117,"endHours":25.658962144081745,"quality":"inauspicious"},{"name":"Chala","start":"01:40","end":"03:02","startHours":25.658962144081745,"endHours":27.04016510449232,"quality":"neutral"},{"name":"Labha","start":"03:02","end":"04:25","startHours":27.04016510449232,"endHours":28.421368064902897,"quality":"auspicious"},{"name":"Amṛta","start":"04:25","end":"05:48","startHours":28.421368064902897,"endHours":29.802571025313473,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:48","end":"06:48","startHours":5.8025710253134735,"endHours":6.8025710253134735,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:48","end":"07:48","startHours":6.8025710253134735,"endHours":7.8025710253134735,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:48","end":"08:48","startHours":7.8025710253134735,"endHours":8.802571025313473,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:48","end":"09:48","startHours":8.802571025313473,"endHours":9.802571025313473,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:48","end":"10:48","startHours":9.802571025313473,"endHours":10.802571025313473,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:48","end":"11:48","startHours":10.802571025313473,"endHours":11.802571025313473,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:48","end":"12:48","startHours":11.802571025313473,"endHours":12.802571025313473,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:48","end":"13:48","startHours":12.802571025313473,"endHours":13.802571025313473,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:48","end":"14:48","startHours":13.802571025313473,"endHours":14.802571025313473,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:48","end":"15:48","startHours":14.802571025313473,"endHours":15.802571025313473,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:48","end":"16:48","startHours":15.802571025313473,"endHours":16.802571025313473,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:48","end":"17:48","startHours":16.802571025313473,"endHours":17.802571025313473,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:48","end":"18:48","startHours":17.802571025313473,"endHours":18.802571025313473,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:48","end":"19:48","startHours":18.802571025313473,"endHours":19.802571025313473,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:48","end":"20:48","startHours":19.802571025313473,"endHours":20.802571025313473,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:48","end":"21:48","startHours":20.802571025313473,"endHours":21.802571025313473,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:48","end":"22:48","startHours":21.802571025313473,"endHours":22.802571025313473,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:48","end":"23:48","startHours":22.802571025313473,"endHours":23.802571025313473,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:48","end":"00:48","startHours":23.802571025313473,"endHours":24.802571025313473,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:48","end":"01:48","startHours":24.802571025313473,"endHours":25.802571025313473,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:48","end":"02:48","startHours":25.802571025313473,"endHours":26.802571025313473,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:48","end":"03:48","startHours":26.802571025313473,"endHours":27.802571025313473,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:48","end":"04:48","startHours":27.802571025313473,"endHours":28.802571025313473,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:48","end":"05:48","startHours":28.802571025313473,"endHours":29.802571025313473,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":10.463346347295136,"eotMinutes":0.2640489797298191,"ayanamsa":25.3099}},"calendars":{"vikram_samvat":2161,"vikram_samvatsara":"Īśvara","saka_samvat":2026,"saka_samvatsara":"Raktākṣī","bengali_samvat":1511,"malayalam_era":1280,"nanakshahi_year":635,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Saptamī · Vikram 2161 Īśvara · Śaka 2026 Raktākṣī"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 17, 2104 CE · Ṛṣikeśa · Vidhyamitra","description":"April 17, 2104 CE for Ṛṣikeśa: Kṛṣṇa Saptamī, sūryodaya 05:48, sūryāsta 18:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2104-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2104-04-17","sa":"https://sa.vidhyamitra.com/city/rishikesh/2104-04-17","hi":"https://hi.vidhyamitra.com/city/rishikesh/2104-04-17","x-default":"https://vidhyamitra.com/city/rishikesh/2104-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T21:04:44.827Z","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":"2026-05-24T21:04:44.827Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T21:04:44.827Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}