{"id":"vidhyamitra:city-day:rishikesh:2098-04-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2098-04-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2098-04-15","date_display":"April 15, 2098 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":2098,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487443.770833,"kali_year":5199,"ahargana":1898978.2708,"sun":{"sidereal_longitude":0.3309,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":172.4608,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.1299,"elapsed_within_tithi_degrees":4.1299},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":172.4608,"elapsed_within_degrees":12.4608},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.7917},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"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":2098,"month":4,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2487443.770833,"ahargana":1898978.2708,"kali_year":5199,"ayanamsa_lahiri":25.226,"grahas":{"sun":{"sidereal_longitude":0.42721299999999474,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":170.92821300000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":0.8217},"mars":{"sidereal_longitude":44.81801300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":331.876613,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":105.67361299999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":28.004512999999974,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":149.753313,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":2.9927,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":182.9927,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":2098,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2487443.770833,"kali_year":5199,"ahargana":1898978.2708,"sun":{"sidereal_longitude":0.3309,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":172.4608,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.1299,"elapsed_within_tithi_degrees":4.1299},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":172.4608,"elapsed_within_degrees":12.4608},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":172.7917},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.822,"elongation":172.13},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.822,"opposition_distance":7.87}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-1.09,"elongation":2.065}]},"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":"05:50","sunsetLocal":"18:44","solarNoonLocal":"12:17","dayLengthHours":12.906099753946393,"dayLengthDisplay":"12 Hours 54 Mins 22 Secs","nightLengthDisplay":"11 Hours 05 Mins 38 Secs","moonriseLocal":"17:51","moonsetLocal":"05:27","rahuKala":{"name":"Rāhu Kāla","start":"15:31","end":"17:08","startHours":15.512687006116717,"endHours":17.125949475360017,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:04","end":"10:40","startHours":9.059637129143521,"endHours":10.67289959838682,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:17","end":"13:54","startHours":12.28616206763012,"endHours":13.899424536873418,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:51","end":"09:16","startHours":8.844535466577748,"endHours":9.274738791709293,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:22","end":"06:43","startHours":6.370866347071355,"endHours":6.715029007176592,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:43","startHours":11.855958742498572,"endHours":12.716365392761666,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:07","end":"04:58","startHours":4.112298890130736,"endHours":4.97270554039383,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:45","end":"05:50","startHours":4.757603877828056,"endHours":5.833112190656922,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:18","startHours":14.437178693287851,"endHours":15.297585343550944,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.539211944603316,"endHours":18.939211944603315,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:17","startHours":18.739211944603316,"endHours":19.27696610101775,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.489211944603316,"endHours":20.239211944603316,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:43","startHours":23.855958742498572,"endHours":24.716365392761666,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:50","end":"07:27","startHours":5.833112190656922,"endHours":7.446374659900221,"quality":"inauspicious"},{"name":"Udveg","start":"07:27","end":"09:04","startHours":7.446374659900221,"endHours":9.059637129143521,"quality":"inauspicious"},{"name":"Chala","start":"09:04","end":"10:40","startHours":9.059637129143521,"endHours":10.67289959838682,"quality":"neutral"},{"name":"Labha","start":"10:40","end":"12:17","startHours":10.67289959838682,"endHours":12.28616206763012,"quality":"auspicious"},{"name":"Amṛta","start":"12:17","end":"13:54","startHours":12.28616206763012,"endHours":13.899424536873418,"quality":"auspicious"},{"name":"Kāla","start":"13:54","end":"15:31","startHours":13.899424536873418,"endHours":15.512687006116717,"quality":"inauspicious"},{"name":"Śubha","start":"15:31","end":"17:08","startHours":15.512687006116717,"endHours":17.125949475360017,"quality":"auspicious"},{"name":"Roga","start":"17:08","end":"18:44","startHours":17.125949475360017,"endHours":18.739211944603316,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:44","end":"20:08","startHours":18.739211944603316,"endHours":20.125949475360017,"quality":"inauspicious"},{"name":"Śubha","start":"20:08","end":"21:31","startHours":20.125949475360017,"endHours":21.512687006116717,"quality":"auspicious"},{"name":"Roga","start":"21:31","end":"22:54","startHours":21.512687006116717,"endHours":22.89942453687342,"quality":"inauspicious"},{"name":"Udveg","start":"22:54","end":"00:17","startHours":22.89942453687342,"endHours":24.28616206763012,"quality":"inauspicious"},{"name":"Chala","start":"00:17","end":"01:40","startHours":24.28616206763012,"endHours":25.67289959838682,"quality":"neutral"},{"name":"Labha","start":"01:40","end":"03:04","startHours":25.67289959838682,"endHours":27.05963712914352,"quality":"auspicious"},{"name":"Amṛta","start":"03:04","end":"04:27","startHours":27.05963712914352,"endHours":28.446374659900222,"quality":"auspicious"},{"name":"Kāla","start":"04:27","end":"05:50","startHours":28.446374659900222,"endHours":29.833112190656923,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:50","end":"06:50","startHours":5.833112190656922,"endHours":6.833112190656922,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:50","end":"07:50","startHours":6.833112190656922,"endHours":7.833112190656922,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:50","end":"08:50","startHours":7.833112190656922,"endHours":8.833112190656923,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:50","end":"09:50","startHours":8.833112190656923,"endHours":9.833112190656923,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:50","end":"10:50","startHours":9.833112190656923,"endHours":10.833112190656923,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:50","end":"11:50","startHours":10.833112190656923,"endHours":11.833112190656923,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:50","end":"12:50","startHours":11.833112190656923,"endHours":12.833112190656923,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:50","end":"13:50","startHours":12.833112190656923,"endHours":13.833112190656923,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:50","end":"14:50","startHours":13.833112190656923,"endHours":14.833112190656923,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:50","end":"15:50","startHours":14.833112190656923,"endHours":15.833112190656923,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:50","end":"16:50","startHours":15.833112190656923,"endHours":16.833112190656923,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:50","end":"17:50","startHours":16.833112190656923,"endHours":17.833112190656923,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:50","end":"18:50","startHours":17.833112190656923,"endHours":18.833112190656923,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:50","end":"19:50","startHours":18.833112190656923,"endHours":19.833112190656923,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:50","end":"20:50","startHours":19.833112190656923,"endHours":20.833112190656923,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:50","end":"21:50","startHours":20.833112190656923,"endHours":21.833112190656923,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:50","end":"22:50","startHours":21.833112190656923,"endHours":22.833112190656923,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:50","end":"23:50","startHours":22.833112190656923,"endHours":23.833112190656923,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:50","end":"00:50","startHours":23.833112190656923,"endHours":24.833112190656923,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:50","end":"01:50","startHours":24.833112190656923,"endHours":25.833112190656923,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:50","end":"02:50","startHours":25.833112190656923,"endHours":26.833112190656923,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:50","end":"03:50","startHours":26.833112190656923,"endHours":27.833112190656923,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:50","end":"04:50","startHours":27.833112190656923,"endHours":28.833112190656923,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:50","end":"05:50","startHours":28.833112190656923,"endHours":29.833112190656923,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.915034167751541,"eotMinutes":-0.240124057807095,"ayanamsa":25.226}},"calendars":{"vikram_samvat":2155,"vikram_samvatsara":"Prajāpati","saka_samvat":2020,"saka_samvatsara":"Kālayukta","bengali_samvat":1505,"malayalam_era":1274,"nanakshahi_year":629,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","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":"Caitra Śukla Pūrṇimā · Vikram 2155 Prajāpati · Śaka 2020 Kālayukta"},"festivals":[{"id":"hanuman-jayanti","name":"Hanumān Jayantī","name_sanskrit":"हनुमान जयन्ती","tradition":"Vaishnava","associated_deity":"Bhagavān Hanumān (Rudra-aṁśa, Rāma-bhakta)","significance":"Birth of Hanumān (Caitra Pūrṇimā tradition; some traditions Mārgaśīrṣa Kṛṣṇa 14).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"sources":["Vālmīki Rāmāyaṇa, Sundara-Kāṇḍa"]}],"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 April 15, 2098 CE · Ṛṣikeśa · Vidhyamitra","description":"April 15, 2098 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 05:50, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2098-04-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2098-04-15","sa":"https://sa.vidhyamitra.com/city/rishikesh/2098-04-15","hi":"https://hi.vidhyamitra.com/city/rishikesh/2098-04-15","x-default":"https://vidhyamitra.com/city/rishikesh/2098-04-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:35:59.055Z","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":"2026-06-01T01:35:59.055Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:35:59.055Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}