{"id":"vidhyamitra:city-day:rishikesh:2021-12-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2021-12-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-12-08","date_display":"December 8, 2021 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":2021,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459556.770833,"kali_year":5123,"ahargana":1871091.2708,"sun":{"sidereal_longitude":231.5033,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":280.7016,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":49.1983,"elapsed_within_tithi_degrees":1.1983},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":280.7016,"elapsed_within_degrees":0.7016},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.205},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2021,"month":12,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459556.770833,"ahargana":1871091.2708,"kali_year":5123,"ayanamsa_lahiri":24.1594,"grahas":{"sun":{"sidereal_longitude":232.001802,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":283.85760200000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":-3.9009},"mars":{"sidereal_longitude":211.79690200000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":236.584702,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":302.206402,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":269.600102,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":285.43320199999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":40.5801,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":220.5801,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"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":2021,"month":12,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459556.770833,"kali_year":5123,"ahargana":1871091.2708,"sun":{"sidereal_longitude":231.5033,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":280.7016,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":49.1983,"elapsed_within_tithi_degrees":1.1983},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":280.7016,"elapsed_within_degrees":0.7016},"yoga":{"number":12,"name":"Dhruva","sum_longitude":152.205},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.901,"elongation":49.198},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.901,"opposition_distance":130.802}},"eclipse_window_40days":[{"offset_days":-19,"type":"lunar","occurs":true,"moon_latitude":-0.942,"opposition_distance":2.637}]},"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":"07:01","sunsetLocal":"17:18","solarNoonLocal":"12:10","dayLengthHours":10.27137782954381,"dayLengthDisplay":"10 Hours 16 Mins 17 Secs","nightLengthDisplay":"13 Hours 43 Mins 43 Secs","moonriseLocal":"10:18","moonsetLocal":"20:56","rahuKala":{"name":"Rāhu Kāla","start":"12:10","end":"13:27","startHours":12.160522914894436,"endHours":13.444445143587412,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:19","end":"09:36","startHours":8.308756228815506,"endHours":9.592678457508482,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:53","end":"12:10","startHours":10.87660068620146,"endHours":12.160522914894436,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:46","startHours":9.421488827016086,"endHours":9.76386808800088,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:44","startHours":7.452808076353522,"endHours":7.726711485141357,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:30","startHours":11.81814365390964,"endHours":12.502902175879228,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:20","startHours":5.655316956183355,"endHours":6.340075478152943,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:01","startHours":6.168885847660546,"endHours":7.02483400012253,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:33","startHours":13.872419219818404,"endHours":14.557177741787992,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.09621182966634,"endHours":17.49621182966634,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:43","startHours":17.29621182966634,"endHours":17.724185905897333,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.04621182966634,"endHours":18.79621182966634,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:30","startHours":23.818143653909644,"endHours":24.50290217587923,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:01","end":"08:19","startHours":7.02483400012253,"endHours":8.308756228815506,"quality":"auspicious"},{"name":"Amṛta","start":"08:19","end":"09:36","startHours":8.308756228815506,"endHours":9.592678457508482,"quality":"auspicious"},{"name":"Kāla","start":"09:36","end":"10:53","startHours":9.592678457508482,"endHours":10.87660068620146,"quality":"inauspicious"},{"name":"Śubha","start":"10:53","end":"12:10","startHours":10.87660068620146,"endHours":12.160522914894436,"quality":"auspicious"},{"name":"Roga","start":"12:10","end":"13:27","startHours":12.160522914894436,"endHours":13.444445143587412,"quality":"inauspicious"},{"name":"Udveg","start":"13:27","end":"14:44","startHours":13.444445143587412,"endHours":14.728367372280388,"quality":"inauspicious"},{"name":"Chala","start":"14:44","end":"16:01","startHours":14.728367372280388,"endHours":16.012289600973364,"quality":"neutral"},{"name":"Labha","start":"16:01","end":"17:18","startHours":16.012289600973364,"endHours":17.29621182966634,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:18","end":"19:01","startHours":17.29621182966634,"endHours":19.012289600973364,"quality":"inauspicious"},{"name":"Chala","start":"19:01","end":"20:44","startHours":19.012289600973364,"endHours":20.72836737228039,"quality":"neutral"},{"name":"Labha","start":"20:44","end":"22:27","startHours":20.72836737228039,"endHours":22.444445143587412,"quality":"auspicious"},{"name":"Amṛta","start":"22:27","end":"00:10","startHours":22.444445143587412,"endHours":24.160522914894436,"quality":"auspicious"},{"name":"Kāla","start":"00:10","end":"01:53","startHours":24.160522914894436,"endHours":25.876600686201456,"quality":"inauspicious"},{"name":"Śubha","start":"01:53","end":"03:36","startHours":25.876600686201456,"endHours":27.592678457508484,"quality":"auspicious"},{"name":"Roga","start":"03:36","end":"05:19","startHours":27.592678457508484,"endHours":29.308756228815504,"quality":"inauspicious"},{"name":"Udveg","start":"05:19","end":"07:01","startHours":29.308756228815504,"endHours":31.02483400012253,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.02483400012253,"endHours":8.02483400012253,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.02483400012253,"endHours":9.02483400012253,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.02483400012253,"endHours":10.02483400012253,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.02483400012253,"endHours":11.02483400012253,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.02483400012253,"endHours":12.02483400012253,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.02483400012253,"endHours":13.02483400012253,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.02483400012253,"endHours":14.02483400012253,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.02483400012253,"endHours":15.02483400012253,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.02483400012253,"endHours":16.02483400012253,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.02483400012253,"endHours":17.02483400012253,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.02483400012253,"endHours":18.02483400012253,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.02483400012253,"endHours":19.02483400012253,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.02483400012253,"endHours":20.02483400012253,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.02483400012253,"endHours":21.02483400012253,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.02483400012253,"endHours":22.02483400012253,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.02483400012253,"endHours":23.02483400012253,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.02483400012253,"endHours":24.02483400012253,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.02483400012253,"endHours":25.02483400012253,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.02483400012253,"endHours":26.02483400012253,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.02483400012253,"endHours":27.02483400012253,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.02483400012253,"endHours":28.02483400012253,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.02483400012253,"endHours":29.02483400012253,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.02483400012253,"endHours":30.02483400012253,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.02483400012253,"endHours":31.02483400012253,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.717468818124964,"eotMinutes":7.298225106333945,"ayanamsa":24.1594}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Pañcamī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 8, 2021 CE · Ṛṣikeśa · Vidhyamitra","description":"December 8, 2021 CE for Ṛṣikeśa: Śukla Pañcamī, sūryodaya 07:01, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2021-12-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2021-12-08","sa":"https://sa.vidhyamitra.com/city/rishikesh/2021-12-08","hi":"https://hi.vidhyamitra.com/city/rishikesh/2021-12-08","x-default":"https://vidhyamitra.com/city/rishikesh/2021-12-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T19:09:31.806Z","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":"2026-05-15T19:09:31.806Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T19:09:31.806Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}