{"id":"vidhyamitra:city-day:rishikesh:2148-04-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2148-04-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2148-04-21","date_display":"April 21, 2148 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":2148,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505711.770833,"kali_year":5250,"ahargana":1917246.2708,"sun":{"sidereal_longitude":5.2646,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":37.1061,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.8415,"elapsed_within_tithi_degrees":7.8415},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.1061,"elapsed_within_degrees":10.4394},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.3707},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2148,"month":4,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505711.770833,"ahargana":1917246.2708,"kali_year":5250,"ayanamsa_lahiri":25.9247,"grahas":{"sun":{"sidereal_longitude":5.497140999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":38.024541,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-4.4008},"mars":{"sidereal_longitude":304.92064099999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":18.169641000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":188.68734100000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":15.276241000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":31.754741000000024,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":115.0661,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":295.0661,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2148,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505711.770833,"kali_year":5250,"ahargana":1917246.2708,"sun":{"sidereal_longitude":5.2646,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":37.1061,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.8415,"elapsed_within_tithi_degrees":7.8415},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.1061,"elapsed_within_degrees":10.4394},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.3707},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.401,"elongation":31.841},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.401,"opposition_distance":148.159}},"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":13.072879650430671,"dayLengthDisplay":"13 Hours 04 Mins 22 Secs","nightLengthDisplay":"10 Hours 55 Mins 38 Secs","moonriseLocal":"07:32","moonsetLocal":"21:20","rahuKala":{"name":"Rāhu Kāla","start":"17:10","end":"18:48","startHours":17.16470105489213,"endHours":18.798811011195966,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:16","end":"13:54","startHours":12.26237118598063,"endHours":13.896481142284465,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:32","end":"17:10","startHours":15.530591098588296,"endHours":17.16470105489213,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:13","startHours":8.776269945865783,"endHours":9.21203260088014,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.270634679533238,"endHours":6.6192448035447224,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:42","startHours":11.826608530966274,"endHours":12.698133840994986,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:59","end":"04:51","startHours":3.9828807407078703,"endHours":4.854406050736582,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:44","startHours":4.636524723229404,"endHours":5.725931360765293,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:19","startHours":14.441184461052408,"endHours":15.31270977108112,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:36","end":"19:00","startHours":18.598811011195966,"endHours":18.998811011195965,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:48","end":"19:21","startHours":18.798811011195966,"endHours":19.34351432996391,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:33","end":"20:18","startHours":18.548811011195966,"endHours":20.298811011195966,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:42","startHours":23.826608530966276,"endHours":24.698133840994984,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:44","end":"07:22","startHours":5.725931360765293,"endHours":7.360041317069127,"quality":"inauspicious"},{"name":"Chala","start":"07:22","end":"09:00","startHours":7.360041317069127,"endHours":8.99415127337296,"quality":"neutral"},{"name":"Labha","start":"09:00","end":"10:38","startHours":8.99415127337296,"endHours":10.628261229676795,"quality":"auspicious"},{"name":"Amṛta","start":"10:38","end":"12:16","startHours":10.628261229676795,"endHours":12.26237118598063,"quality":"auspicious"},{"name":"Kāla","start":"12:16","end":"13:54","startHours":12.26237118598063,"endHours":13.896481142284465,"quality":"inauspicious"},{"name":"Śubha","start":"13:54","end":"15:32","startHours":13.896481142284465,"endHours":15.530591098588296,"quality":"auspicious"},{"name":"Roga","start":"15:32","end":"17:10","startHours":15.530591098588296,"endHours":17.16470105489213,"quality":"inauspicious"},{"name":"Udveg","start":"17:10","end":"18:48","startHours":17.16470105489213,"endHours":18.798811011195966,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:48","end":"20:10","startHours":18.798811011195966,"endHours":20.16470105489213,"quality":"auspicious"},{"name":"Roga","start":"20:10","end":"21:32","startHours":20.16470105489213,"endHours":21.530591098588296,"quality":"inauspicious"},{"name":"Udveg","start":"21:32","end":"22:54","startHours":21.530591098588296,"endHours":22.896481142284465,"quality":"inauspicious"},{"name":"Chala","start":"22:54","end":"00:16","startHours":22.896481142284465,"endHours":24.26237118598063,"quality":"neutral"},{"name":"Labha","start":"00:16","end":"01:38","startHours":24.26237118598063,"endHours":25.628261229676795,"quality":"auspicious"},{"name":"Amṛta","start":"01:38","end":"03:00","startHours":25.628261229676795,"endHours":26.994151273372964,"quality":"auspicious"},{"name":"Kāla","start":"03:00","end":"04:22","startHours":26.994151273372964,"endHours":28.36004131706913,"quality":"inauspicious"},{"name":"Śubha","start":"04:22","end":"05:44","startHours":28.36004131706913,"endHours":29.725931360765294,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:44","end":"06:44","startHours":5.725931360765293,"endHours":6.725931360765293,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:44","end":"07:44","startHours":6.725931360765293,"endHours":7.725931360765293,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:44","end":"08:44","startHours":7.725931360765293,"endHours":8.725931360765294,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:44","end":"09:44","startHours":8.725931360765294,"endHours":9.725931360765294,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:44","end":"10:44","startHours":9.725931360765294,"endHours":10.725931360765294,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:44","end":"11:44","startHours":10.725931360765294,"endHours":11.725931360765294,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:44","end":"12:44","startHours":11.725931360765294,"endHours":12.725931360765294,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:44","end":"13:44","startHours":12.725931360765294,"endHours":13.725931360765294,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:44","end":"14:44","startHours":13.725931360765294,"endHours":14.725931360765294,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:44","end":"15:44","startHours":14.725931360765294,"endHours":15.725931360765294,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:44","end":"16:44","startHours":15.725931360765294,"endHours":16.725931360765294,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:44","end":"17:44","startHours":16.725931360765294,"endHours":17.725931360765294,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:44","end":"18:44","startHours":17.725931360765294,"endHours":18.725931360765294,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:44","end":"19:44","startHours":18.725931360765294,"endHours":19.725931360765294,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:44","end":"20:44","startHours":19.725931360765294,"endHours":20.725931360765294,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:44","end":"21:44","startHours":20.725931360765294,"endHours":21.725931360765294,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:44","end":"22:44","startHours":21.725931360765294,"endHours":22.725931360765294,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:44","end":"23:44","startHours":22.725931360765294,"endHours":23.725931360765294,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:44","end":"00:44","startHours":23.725931360765294,"endHours":24.725931360765294,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:44","end":"01:44","startHours":24.725931360765294,"endHours":25.725931360765294,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:44","end":"02:44","startHours":25.725931360765294,"endHours":26.725931360765294,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:44","end":"03:44","startHours":26.725931360765294,"endHours":27.725931360765294,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:44","end":"04:44","startHours":27.725931360765294,"endHours":28.725931360765294,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:44","end":"05:44","startHours":28.725931360765294,"endHours":29.725931360765294,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.967208214416827,"eotMinutes":1.1873288411622274,"ayanamsa":25.9247}},"calendars":{"vikram_samvat":2205,"vikram_samvatsara":"Durmati","saka_samvat":2070,"saka_samvatsara":"Kīlaka","bengali_samvat":1555,"malayalam_era":1324,"nanakshahi_year":679,"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 Tṛtīyā · Vikram 2205 Durmati · Śaka 2070 Kīlaka"},"festivals":[{"id":"akshaya-tritiya","name":"Akṣaya Tṛtīyā","name_sanskrit":"अक्षय तृतीया","tradition":"Pan-Hindu","significance":"\"Inexhaustible third\"; auspicious for any new venture.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":1},{"id":"parashurama-jayanti","name":"Paraśurāma Jayantī","name_sanskrit":"परशुराम जयन्ती","tradition":"Vaishnava","associated_deity":"Paraśurāma (6th daśāvatāra of Krishna)","deity_avatara_index":16,"significance":"Paraśurāma's manifestation; ciranjīvi-pratiṣṭhā. Coincides with Akṣaya Tṛtīyā.","vrata":true,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Bhāgavata 9.15-16"]}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","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 21, 2148 CE · Ṛṣikeśa · Vidhyamitra","description":"April 21, 2148 CE for Ṛṣikeśa: Śukla Tṛtīyā, sūryodaya 05:44, sūryāsta 18:48.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2148-04-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2148-04-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/2148-04-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/2148-04-21","x-default":"https://vidhyamitra.com/city/rishikesh/2148-04-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T03:39:55.448Z","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":"2026-05-31T03:39:55.448Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T03:39:55.448Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}