{"id":"vidhyamitra:city-day:rishikesh:2008-04-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2008-04-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2008-04-21","date_display":"April 21, 2008 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":2008,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454577.770833,"kali_year":5110,"ahargana":1866112.2708,"sun":{"sidereal_longitude":7.4288,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":196.1415,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":188.7127,"elapsed_within_tithi_degrees":8.7127},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.1415,"elapsed_within_degrees":9.4749},"yoga":{"number":16,"name":"Siddhi","sum_longitude":203.5704},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":2008,"month":4,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454577.770833,"ahargana":1866112.2708,"kali_year":5110,"ayanamsa_lahiri":23.969,"grahas":{"sun":{"sidereal_longitude":7.34263599999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":194.12353600000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":-4.2732},"mars":{"sidereal_longitude":86.18503599999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":12.522036000000014,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":268.50073599999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":354.200636,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":127.63853599999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":304.3915,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":124.3915,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2008,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454577.770833,"kali_year":5110,"ahargana":1866112.2708,"sun":{"sidereal_longitude":7.4288,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":196.1415,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":188.7127,"elapsed_within_tithi_degrees":8.7127},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.1415,"elapsed_within_degrees":9.4749},"yoga":{"number":16,"name":"Siddhi","sum_longitude":203.5704},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.273,"elongation":171.287},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.273,"opposition_distance":8.713}},"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":"05:44","sunsetLocal":"18:48","solarNoonLocal":"12:16","dayLengthHours":13.069742799637766,"dayLengthDisplay":"13 Hours 04 Mins 11 Secs","nightLengthDisplay":"10 Hours 55 Mins 49 Secs","moonriseLocal":"19:14","moonsetLocal":"06:12","rahuKala":{"name":"Rāhu Kāla","start":"07:22","end":"09:00","startHours":7.361217636116467,"endHours":8.994935486071189,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:38","end":"12:16","startHours":10.62865333602591,"endHours":12.26237118598063,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:54","end":"15:32","startHours":13.89608903593535,"endHours":15.529806885890071,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:13","startHours":8.77710643941056,"endHours":9.212764532731818,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.27207240281332,"endHours":6.620598877470327,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:42","startHours":11.826713092659372,"endHours":12.698029279301888,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:59","end":"04:51","startHours":3.984867412876711,"endHours":4.856183599519229,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:44","startHours":4.638354552858599,"endHours":5.727499786161746,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:19","startHours":14.440661652586925,"endHours":15.311977839229444,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:36","end":"19:00","startHours":18.597242585799513,"endHours":18.997242585799512,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:48","end":"19:21","startHours":18.797242585799513,"endHours":19.341815202451087,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:33","end":"20:18","startHours":18.547242585799513,"endHours":20.297242585799513,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:42","startHours":23.82671309265937,"endHours":24.69802927930189,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:44","end":"07:22","startHours":5.727499786161746,"endHours":7.361217636116467,"quality":"auspicious"},{"name":"Kāla","start":"07:22","end":"09:00","startHours":7.361217636116467,"endHours":8.994935486071189,"quality":"inauspicious"},{"name":"Śubha","start":"09:00","end":"10:38","startHours":8.994935486071189,"endHours":10.62865333602591,"quality":"auspicious"},{"name":"Roga","start":"10:38","end":"12:16","startHours":10.62865333602591,"endHours":12.26237118598063,"quality":"inauspicious"},{"name":"Udveg","start":"12:16","end":"13:54","startHours":12.26237118598063,"endHours":13.89608903593535,"quality":"inauspicious"},{"name":"Chala","start":"13:54","end":"15:32","startHours":13.89608903593535,"endHours":15.529806885890071,"quality":"neutral"},{"name":"Labha","start":"15:32","end":"17:10","startHours":15.529806885890071,"endHours":17.163524735844792,"quality":"auspicious"},{"name":"Amṛta","start":"17:10","end":"18:48","startHours":17.163524735844792,"endHours":18.797242585799513,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:48","end":"20:10","startHours":18.797242585799513,"endHours":20.163524735844792,"quality":"neutral"},{"name":"Labha","start":"20:10","end":"21:32","startHours":20.163524735844792,"endHours":21.52980688589007,"quality":"auspicious"},{"name":"Amṛta","start":"21:32","end":"22:54","startHours":21.52980688589007,"endHours":22.89608903593535,"quality":"auspicious"},{"name":"Kāla","start":"22:54","end":"00:16","startHours":22.89608903593535,"endHours":24.26237118598063,"quality":"inauspicious"},{"name":"Śubha","start":"00:16","end":"01:38","startHours":24.26237118598063,"endHours":25.62865333602591,"quality":"auspicious"},{"name":"Roga","start":"01:38","end":"03:00","startHours":25.62865333602591,"endHours":26.99493548607119,"quality":"inauspicious"},{"name":"Udveg","start":"03:00","end":"04:22","startHours":26.99493548607119,"endHours":28.361217636116468,"quality":"inauspicious"},{"name":"Chala","start":"04:22","end":"05:44","startHours":28.361217636116468,"endHours":29.727499786161747,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.727499786161746,"endHours":6.727499786161746,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.727499786161746,"endHours":7.727499786161746,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.727499786161746,"endHours":8.727499786161747,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.727499786161747,"endHours":9.727499786161747,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.727499786161747,"endHours":10.727499786161747,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.727499786161747,"endHours":11.727499786161747,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.727499786161747,"endHours":12.727499786161747,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.727499786161747,"endHours":13.727499786161747,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.727499786161747,"endHours":14.727499786161747,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.727499786161747,"endHours":15.727499786161747,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.727499786161747,"endHours":16.727499786161747,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.727499786161747,"endHours":17.727499786161747,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.727499786161747,"endHours":18.727499786161747,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.727499786161747,"endHours":19.727499786161747,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.727499786161747,"endHours":20.727499786161747,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.727499786161747,"endHours":21.727499786161747,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.727499786161747,"endHours":22.727499786161747,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.727499786161747,"endHours":23.727499786161747,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.727499786161747,"endHours":24.727499786161747,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.727499786161747,"endHours":25.727499786161747,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.727499786161747,"endHours":26.727499786161747,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.727499786161747,"endHours":27.727499786161747,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.727499786161747,"endHours":28.727499786161747,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.727499786161747,"endHours":29.727499786161747,"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.92895326909888,"eotMinutes":1.1873288411622274,"ayanamsa":23.969}},"calendars":{"vikram_samvat":2065,"vikram_samvatsara":"Plava","saka_samvat":1930,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1415,"malayalam_era":1184,"nanakshahi_year":539,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","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":"Vaiśākha Kṛṣṇa Pratipada · Vikram 2065 Plava · Śaka 1930 Sarvadhāri"},"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 21, 2008 CE · Ṛṣikeśa · Vidhyamitra","description":"April 21, 2008 CE for Ṛṣikeśa: Kṛṣṇa Pratipada, sūryodaya 05:44, sūryāsta 18:48.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2008-04-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2008-04-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/2008-04-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/2008-04-21","x-default":"https://vidhyamitra.com/city/rishikesh/2008-04-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:46:48.297Z","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":"2026-05-31T14:46:48.297Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:46:48.297Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}