{"id":"vidhyamitra:city-day:rishikesh:1925-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1925-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1925-12-20","date_display":"December 20, 1925 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":1925,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2424504.770833,"kali_year":5027,"ahargana":1836039.2708,"sun":{"sidereal_longitude":244.6733,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":299.9906,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.3173,"elapsed_within_tithi_degrees":7.3173},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.9906,"elapsed_within_degrees":6.6573},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.6639},"karana":{"half_tithi_index":9,"name":"Bālava"},"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":1925,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2424504.770833,"ahargana":1836039.2708,"kali_year":5027,"ayanamsa_lahiri":22.8188,"grahas":{"sun":{"sidereal_longitude":244.83484599999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":303.10984600000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":-1.6978},"mars":{"sidereal_longitude":212.76254599999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":229.236446,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":274.948946,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":290.948846,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":209.00194599999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":97.8038,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":277.8038,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"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":1925,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2424504.770833,"kali_year":5027,"ahargana":1836039.2708,"sun":{"sidereal_longitude":244.6733,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":299.9906,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.3173,"elapsed_within_tithi_degrees":7.3173},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":299.9906,"elapsed_within_degrees":6.6573},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.6639},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.698,"elongation":55.317},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.698,"opposition_distance":124.683}},"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":"07:09","sunsetLocal":"17:21","solarNoonLocal":"12:15","dayLengthHours":10.206671172672543,"dayLengthDisplay":"10 Hours 12 Mins 24 Secs","nightLengthDisplay":"13 Hours 47 Mins 36 Secs","moonriseLocal":"10:36","moonsetLocal":"21:41","rahuKala":{"name":"Rāhu Kāla","start":"16:05","end":"17:21","startHours":16.07879639771106,"endHours":17.354630294295127,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:15","end":"13:32","startHours":12.251294707958856,"endHours":13.527128604542924,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:48","end":"16:05","startHours":14.802962501126991,"endHours":16.07879639771106,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:52","startHours":9.529515728579511,"endHours":9.86973810100193,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:51","startHours":7.573237087150607,"endHours":7.845414985088542,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:35","startHours":11.911072335536437,"endHours":12.591517080381275,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:28","startHours":5.787069631932913,"endHours":6.467514376777749,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:09","startHours":6.2974031905665395,"endHours":7.147959121622585,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.952406570070947,"endHours":14.632851314915783,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.154630294295128,"endHours":17.554630294295126,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:47","startHours":17.354630294295127,"endHours":17.77990825982315,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.104630294295127,"endHours":18.854630294295127,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:35","startHours":23.91107233553644,"endHours":24.591517080381273,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:09","end":"08:25","startHours":7.147959121622585,"endHours":8.423793018206652,"quality":"inauspicious"},{"name":"Chala","start":"08:25","end":"09:42","startHours":8.423793018206652,"endHours":9.69962691479072,"quality":"neutral"},{"name":"Labha","start":"09:42","end":"10:59","startHours":9.69962691479072,"endHours":10.975460811374788,"quality":"auspicious"},{"name":"Amṛta","start":"10:59","end":"12:15","startHours":10.975460811374788,"endHours":12.251294707958856,"quality":"auspicious"},{"name":"Kāla","start":"12:15","end":"13:32","startHours":12.251294707958856,"endHours":13.527128604542924,"quality":"inauspicious"},{"name":"Śubha","start":"13:32","end":"14:48","startHours":13.527128604542924,"endHours":14.802962501126991,"quality":"auspicious"},{"name":"Roga","start":"14:48","end":"16:05","startHours":14.802962501126991,"endHours":16.07879639771106,"quality":"inauspicious"},{"name":"Udveg","start":"16:05","end":"17:21","startHours":16.07879639771106,"endHours":17.354630294295127,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:21","end":"19:05","startHours":17.354630294295127,"endHours":19.07879639771106,"quality":"auspicious"},{"name":"Roga","start":"19:05","end":"20:48","startHours":19.07879639771106,"endHours":20.80296250112699,"quality":"inauspicious"},{"name":"Udveg","start":"20:48","end":"22:32","startHours":20.80296250112699,"endHours":22.527128604542924,"quality":"inauspicious"},{"name":"Chala","start":"22:32","end":"00:15","startHours":22.527128604542924,"endHours":24.251294707958856,"quality":"neutral"},{"name":"Labha","start":"00:15","end":"01:59","startHours":24.251294707958856,"endHours":25.975460811374788,"quality":"auspicious"},{"name":"Amṛta","start":"01:59","end":"03:42","startHours":25.975460811374788,"endHours":27.69962691479072,"quality":"auspicious"},{"name":"Kāla","start":"03:42","end":"05:25","startHours":27.69962691479072,"endHours":29.423793018206652,"quality":"inauspicious"},{"name":"Śubha","start":"05:25","end":"07:09","startHours":29.423793018206652,"endHours":31.147959121622584,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:09","end":"08:09","startHours":7.147959121622585,"endHours":8.147959121622584,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:09","end":"09:09","startHours":8.147959121622584,"endHours":9.147959121622584,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:09","end":"10:09","startHours":9.147959121622584,"endHours":10.147959121622584,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:09","end":"11:09","startHours":10.147959121622584,"endHours":11.147959121622584,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:09","end":"12:09","startHours":11.147959121622584,"endHours":12.147959121622584,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:09","end":"13:09","startHours":12.147959121622584,"endHours":13.147959121622584,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:09","end":"14:09","startHours":13.147959121622584,"endHours":14.147959121622584,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:09","end":"15:09","startHours":14.147959121622584,"endHours":15.147959121622584,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:09","end":"16:09","startHours":15.147959121622584,"endHours":16.147959121622584,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:09","end":"17:09","startHours":16.147959121622584,"endHours":17.147959121622584,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:09","end":"18:09","startHours":17.147959121622584,"endHours":18.147959121622584,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:09","end":"19:09","startHours":18.147959121622584,"endHours":19.147959121622584,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:09","end":"20:09","startHours":19.147959121622584,"endHours":20.147959121622584,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:09","end":"21:09","startHours":20.147959121622584,"endHours":21.147959121622584,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:09","end":"22:09","startHours":21.147959121622584,"endHours":22.147959121622584,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:09","end":"23:09","startHours":22.147959121622584,"endHours":23.147959121622584,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:09","end":"00:09","startHours":23.147959121622584,"endHours":24.147959121622584,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:09","end":"01:09","startHours":24.147959121622584,"endHours":25.147959121622584,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:09","end":"02:09","startHours":25.147959121622584,"endHours":26.147959121622584,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:09","end":"03:09","startHours":26.147959121622584,"endHours":27.147959121622584,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:09","end":"04:09","startHours":27.147959121622584,"endHours":28.147959121622584,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:09","end":"05:09","startHours":28.147959121622584,"endHours":29.147959121622584,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:09","end":"06:09","startHours":29.147959121622584,"endHours":30.147959121622584,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:09","end":"07:09","startHours":30.147959121622584,"endHours":31.147959121622584,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.415677933241177,"eotMinutes":1.851917522468745,"ayanamsa":22.8188}},"calendars":{"vikram_samvat":1982,"vikram_samvatsara":"Bahudhānya","saka_samvat":1847,"saka_samvatsara":"Krodhana","bengali_samvat":1332,"malayalam_era":1101,"nanakshahi_year":456,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pañcamī · Vikram 1982 Bahudhānya · Śaka 1847 Krodhana"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"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":[]},"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 December 20, 1925 CE · Ṛṣikeśa · Vidhyamitra","description":"December 20, 1925 CE for Ṛṣikeśa: Śukla Pañcamī, sūryodaya 07:09, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1925-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1925-12-20","sa":"https://sa.vidhyamitra.com/city/rishikesh/1925-12-20","hi":"https://hi.vidhyamitra.com/city/rishikesh/1925-12-20","x-default":"https://vidhyamitra.com/city/rishikesh/1925-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T06:44:41.720Z","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":"2026-05-23T06:44:41.720Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T06:44:41.720Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}