{"id":"vidhyamitra:city-day:rishikesh:2124-12-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2124-12-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2124-12-21","date_display":"December 21, 2124 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":2124,"month":12,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2497189.770833,"kali_year":5226,"ahargana":1908724.2708,"sun":{"sidereal_longitude":243.1405,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":58.156,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.0155,"elapsed_within_tithi_degrees":7.0155},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":58.156,"elapsed_within_degrees":4.8227},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.2965},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2124,"month":12,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2497189.770833,"ahargana":1908724.2708,"kali_year":5226,"ayanamsa_lahiri":25.5987,"grahas":{"sun":{"sidereal_longitude":243.784445,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":59.921245,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":-2.3531},"mars":{"sidereal_longitude":164.577945,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":227.94044499999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":205.59854500000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":226.74254500000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":123.02174500000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":206.6027,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":26.6027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2124,"month":12,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2497189.770833,"kali_year":5226,"ahargana":1908724.2708,"sun":{"sidereal_longitude":243.1405,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":58.156,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":175.0155,"elapsed_within_tithi_degrees":7.0155},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":58.156,"elapsed_within_degrees":4.8227},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.2965},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.353,"elongation":175.015},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.353,"opposition_distance":4.985}},"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":"17:22","solarNoonLocal":"12:16","dayLengthHours":10.20486367421554,"dayLengthDisplay":"10 Hours 12 Mins 18 Secs","nightLengthDisplay":"13 Hours 47 Mins 42 Secs","moonriseLocal":"16:59","moonsetLocal":"07:01","rahuKala":{"name":"Rāhu Kāla","start":"13:32","end":"14:49","startHours":13.534724135827906,"endHours":14.81033209510485,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:09","end":"08:26","startHours":7.156684339443194,"endHours":8.432292298720137,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:42","end":"10:59","startHours":9.707900257997078,"endHours":10.983508217274021,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:53","startHours":9.537819196760154,"endHours":9.877981319234005,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:35","end":"07:51","startHours":7.581886992535508,"endHours":7.854016690514589,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:36","startHours":11.918954054077112,"endHours":12.599278299024814,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:48","end":"06:29","startHours":5.796035849547788,"endHours":6.476360094495491,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:09","startHours":6.306279033258566,"endHours":7.156684339443194,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:38","startHours":13.959926788920221,"endHours":14.640251033867923,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:10","end":"17:34","startHours":17.161548013658734,"endHours":17.561548013658733,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:22","end":"17:47","startHours":17.361548013658734,"endHours":17.786750666751047,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:07","end":"18:52","startHours":17.111548013658734,"endHours":18.861548013658734,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:36","startHours":23.91895405407711,"endHours":24.599278299024814,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:09","end":"08:26","startHours":7.156684339443194,"endHours":8.432292298720137,"quality":"auspicious"},{"name":"Roga","start":"08:26","end":"09:42","startHours":8.432292298720137,"endHours":9.707900257997078,"quality":"inauspicious"},{"name":"Udveg","start":"09:42","end":"10:59","startHours":9.707900257997078,"endHours":10.983508217274021,"quality":"inauspicious"},{"name":"Chala","start":"10:59","end":"12:16","startHours":10.983508217274021,"endHours":12.259116176550965,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:32","startHours":12.259116176550965,"endHours":13.534724135827906,"quality":"auspicious"},{"name":"Amṛta","start":"13:32","end":"14:49","startHours":13.534724135827906,"endHours":14.81033209510485,"quality":"auspicious"},{"name":"Kāla","start":"14:49","end":"16:05","startHours":14.81033209510485,"endHours":16.08594005438179,"quality":"inauspicious"},{"name":"Śubha","start":"16:05","end":"17:22","startHours":16.08594005438179,"endHours":17.361548013658734,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:22","end":"19:05","startHours":17.361548013658734,"endHours":19.08594005438179,"quality":"auspicious"},{"name":"Kāla","start":"19:05","end":"20:49","startHours":19.08594005438179,"endHours":20.810332095104847,"quality":"inauspicious"},{"name":"Śubha","start":"20:49","end":"22:32","startHours":20.810332095104847,"endHours":22.534724135827908,"quality":"auspicious"},{"name":"Roga","start":"22:32","end":"00:16","startHours":22.534724135827908,"endHours":24.259116176550965,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"01:59","startHours":24.259116176550965,"endHours":25.98350821727402,"quality":"inauspicious"},{"name":"Chala","start":"01:59","end":"03:42","startHours":25.98350821727402,"endHours":27.70790025799708,"quality":"neutral"},{"name":"Labha","start":"03:42","end":"05:26","startHours":27.70790025799708,"endHours":29.432292298720135,"quality":"auspicious"},{"name":"Amṛta","start":"05:26","end":"07:09","startHours":29.432292298720135,"endHours":31.156684339443196,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:09","end":"08:09","startHours":7.156684339443194,"endHours":8.156684339443194,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:09","end":"09:09","startHours":8.156684339443194,"endHours":9.156684339443194,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:09","end":"10:09","startHours":9.156684339443194,"endHours":10.156684339443194,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:09","end":"11:09","startHours":10.156684339443194,"endHours":11.156684339443194,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:09","end":"12:09","startHours":11.156684339443194,"endHours":12.156684339443194,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:09","end":"13:09","startHours":12.156684339443194,"endHours":13.156684339443194,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:09","end":"14:09","startHours":13.156684339443194,"endHours":14.156684339443194,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:09","end":"15:09","startHours":14.156684339443194,"endHours":15.156684339443194,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:09","end":"16:09","startHours":15.156684339443194,"endHours":16.156684339443196,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:09","end":"17:09","startHours":16.156684339443196,"endHours":17.156684339443196,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:09","end":"18:09","startHours":17.156684339443196,"endHours":18.156684339443196,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:09","end":"19:09","startHours":18.156684339443196,"endHours":19.156684339443196,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:09","end":"20:09","startHours":19.156684339443196,"endHours":20.156684339443196,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:09","end":"21:09","startHours":20.156684339443196,"endHours":21.156684339443196,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:09","end":"22:09","startHours":21.156684339443196,"endHours":22.156684339443196,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:09","end":"23:09","startHours":22.156684339443196,"endHours":23.156684339443196,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:09","end":"00:09","startHours":23.156684339443196,"endHours":24.156684339443196,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:09","end":"01:09","startHours":24.156684339443196,"endHours":25.156684339443196,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:09","end":"02:09","startHours":25.156684339443196,"endHours":26.156684339443196,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:09","end":"03:09","startHours":26.156684339443196,"endHours":27.156684339443196,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:09","end":"04:09","startHours":27.156684339443196,"endHours":28.156684339443196,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:09","end":"05:09","startHours":28.156684339443196,"endHours":29.156684339443196,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:09","end":"06:09","startHours":29.156684339443196,"endHours":30.156684339443196,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:09","end":"07:09","startHours":30.156684339443196,"endHours":31.156684339443196,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"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":-23.435060567597503,"eotMinutes":1.382629406942221,"ayanamsa":25.5987}},"calendars":{"vikram_samvat":2181,"vikram_samvatsara":"Hemalambī","saka_samvat":2046,"saka_samvatsara":"Tāraṇa","bengali_samvat":1531,"malayalam_era":1300,"nanakshahi_year":655,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pūrṇimā · Vikram 2181 Hemalambī · Śaka 2046 Tāraṇa"},"festivals":[{"id":"paush-purnima","name":"Pauṣa Pūrṇimā (Śākambharī Devī Jayantī)","name_sanskrit":"पौष पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Devī Śākambharī","significance":"Manifestation of Devī Śākambharī (vegetation-mother).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":3},{"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":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 December 21, 2124 CE · Ṛṣikeśa · Vidhyamitra","description":"December 21, 2124 CE for Ṛṣikeśa: Śukla Pūrṇimā, sūryodaya 07:09, sūryāsta 17:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2124-12-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2124-12-21","sa":"https://sa.vidhyamitra.com/city/rishikesh/2124-12-21","hi":"https://hi.vidhyamitra.com/city/rishikesh/2124-12-21","x-default":"https://vidhyamitra.com/city/rishikesh/2124-12-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T10:49:36.445Z","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":"2026-05-24T10:49:36.445Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T10:49:36.445Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}