{"id":"vidhyamitra:city-day:rishikesh:2019-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2019-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2019-04-13","date_display":"April 13, 2019 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":2019,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458586.770833,"kali_year":5120,"ahargana":1870121.2708,"sun":{"sidereal_longitude":358.8088,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":94.2954,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.4866,"elapsed_within_tithi_degrees":11.4866},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.2954,"elapsed_within_degrees":0.9621},"yoga":{"number":7,"name":"Sukarma","sum_longitude":93.1042},"karana":{"half_tithi_index":15,"name":"Bava"},"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":2019,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458586.770833,"ahargana":1870121.2708,"kali_year":5120,"ayanamsa_lahiri":24.1223,"grahas":{"sun":{"sidereal_longitude":358.715863,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":91.87656300000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":0.182},"mars":{"sidereal_longitude":44.08656300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":330.839963,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":240.19846299999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"venus":{"sidereal_longitude":326.406063,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":266.0765630000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":91.9754,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":271.9754,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2019,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458586.770833,"kali_year":5120,"ahargana":1870121.2708,"sun":{"sidereal_longitude":358.8088,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":94.2954,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.4866,"elapsed_within_tithi_degrees":11.4866},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.2954,"elapsed_within_degrees":0.9621},"yoga":{"number":7,"name":"Sukarma","sum_longitude":93.1042},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.182,"elongation":95.487},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.182,"opposition_distance":84.513}},"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":"05:53","sunsetLocal":"18:42","solarNoonLocal":"12:18","dayLengthHours":12.823058825889547,"dayLengthDisplay":"12 Hours 49 Mins 23 Secs","nightLengthDisplay":"11 Hours 10 Mins 37 Secs","moonriseLocal":"11:36","moonsetLocal":"01:25","rahuKala":{"name":"Rāhu Kāla","start":"09:05","end":"10:42","startHours":9.089225474022687,"endHours":10.69210782725888,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:30","startHours":13.897872533731267,"endHours":15.50075488696746,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:53","end":"07:29","startHours":5.8834607675503,"endHours":7.486343120786493,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.875507826924528,"endHours":9.302943121120846,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:46","startHours":6.417754885295698,"endHours":6.759703120652752,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:43","startHours":11.867554886298755,"endHours":12.722425474691391,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:02","startHours":4.173719590765027,"endHours":5.028590179157664,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:49","end":"05:53","startHours":4.814872532059505,"endHours":5.8834607675503,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:17","startHours":14.432166651476663,"endHours":15.2870372398693,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:30","end":"18:54","startHours":18.506519593439847,"endHours":18.906519593439846,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:42","end":"19:14","startHours":18.706519593439847,"endHours":19.240813711185243,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:27","end":"20:12","startHours":18.456519593439847,"endHours":20.206519593439847,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:43","startHours":23.867554886298755,"endHours":24.72242547469139,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:53","end":"07:29","startHours":5.8834607675503,"endHours":7.486343120786493,"quality":"inauspicious"},{"name":"Śubha","start":"07:29","end":"09:05","startHours":7.486343120786493,"endHours":9.089225474022687,"quality":"auspicious"},{"name":"Roga","start":"09:05","end":"10:42","startHours":9.089225474022687,"endHours":10.69210782725888,"quality":"inauspicious"},{"name":"Udveg","start":"10:42","end":"12:18","startHours":10.69210782725888,"endHours":12.294990180495073,"quality":"inauspicious"},{"name":"Chala","start":"12:18","end":"13:54","startHours":12.294990180495073,"endHours":13.897872533731267,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:30","startHours":13.897872533731267,"endHours":15.50075488696746,"quality":"auspicious"},{"name":"Amṛta","start":"15:30","end":"17:06","startHours":15.50075488696746,"endHours":17.103637240203653,"quality":"auspicious"},{"name":"Kāla","start":"17:06","end":"18:42","startHours":17.103637240203653,"endHours":18.706519593439847,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:42","end":"20:06","startHours":18.706519593439847,"endHours":20.103637240203653,"quality":"auspicious"},{"name":"Amṛta","start":"20:06","end":"21:30","startHours":20.103637240203653,"endHours":21.50075488696746,"quality":"auspicious"},{"name":"Kāla","start":"21:30","end":"22:54","startHours":21.50075488696746,"endHours":22.897872533731267,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:18","startHours":22.897872533731267,"endHours":24.294990180495073,"quality":"auspicious"},{"name":"Roga","start":"00:18","end":"01:42","startHours":24.294990180495073,"endHours":25.69210782725888,"quality":"inauspicious"},{"name":"Udveg","start":"01:42","end":"03:05","startHours":25.69210782725888,"endHours":27.089225474022687,"quality":"inauspicious"},{"name":"Chala","start":"03:05","end":"04:29","startHours":27.089225474022687,"endHours":28.486343120786493,"quality":"neutral"},{"name":"Labha","start":"04:29","end":"05:53","startHours":28.486343120786493,"endHours":29.8834607675503,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.8834607675503,"endHours":6.8834607675503,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.8834607675503,"endHours":7.8834607675503,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.8834607675503,"endHours":8.8834607675503,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.8834607675503,"endHours":9.8834607675503,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.8834607675503,"endHours":10.8834607675503,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.8834607675503,"endHours":11.8834607675503,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.8834607675503,"endHours":12.8834607675503,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.8834607675503,"endHours":13.8834607675503,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.8834607675503,"endHours":14.8834607675503,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.8834607675503,"endHours":15.8834607675503,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.8834607675503,"endHours":16.8834607675503,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.8834607675503,"endHours":17.8834607675503,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.8834607675503,"endHours":18.8834607675503,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.8834607675503,"endHours":19.8834607675503,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.8834607675503,"endHours":20.8834607675503,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.8834607675503,"endHours":21.8834607675503,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.8834607675503,"endHours":22.8834607675503,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.8834607675503,"endHours":23.8834607675503,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.8834607675503,"endHours":24.8834607675503,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.8834607675503,"endHours":25.8834607675503,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.8834607675503,"endHours":26.8834607675503,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.8834607675503,"endHours":27.8834607675503,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.8834607675503,"endHours":28.8834607675503,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.8834607675503,"endHours":29.8834607675503,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.88035941207811,"eotMinutes":-0.7698108297043191,"ayanamsa":24.1223}},"calendars":{"vikram_samvat":2076,"vikram_samvatsara":"Paridhāvi","saka_samvat":1941,"saka_samvatsara":"Vikāri","bengali_samvat":1426,"malayalam_era":1195,"nanakshahi_year":550,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Aṣṭamī · Vikram 2076 Paridhāvi · Śaka 1941 Vikāri"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"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":"-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 April 13, 2019 CE · Ṛṣikeśa · Vidhyamitra","description":"April 13, 2019 CE for Ṛṣikeśa: Śukla Aṣṭamī, sūryodaya 05:53, sūryāsta 18:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2019-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2019-04-13","sa":"https://sa.vidhyamitra.com/city/rishikesh/2019-04-13","hi":"https://hi.vidhyamitra.com/city/rishikesh/2019-04-13","x-default":"https://vidhyamitra.com/city/rishikesh/2019-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T17:35:22.203Z","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":"2026-05-15T17:35:22.203Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T17:35:22.203Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}