{"id":"vidhyamitra:city-day:rishikesh:2027-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2027-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2027-12-12","date_display":"December 12, 2027 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":2027,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461751.770833,"kali_year":5129,"ahargana":1873286.2708,"sun":{"sidereal_longitude":235.0349,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":32.9343,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":157.8994,"elapsed_within_tithi_degrees":1.8994},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.9343,"elapsed_within_degrees":6.2676},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.9692},"karana":{"half_tithi_index":26,"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":2027,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461751.770833,"ahargana":1873286.2708,"kali_year":5129,"ayanamsa_lahiri":24.2434,"grahas":{"sun":{"sidereal_longitude":235.51833699999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":34.075537,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":4.2631},"mars":{"sidereal_longitude":257.78793700000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":235.16503699999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":151.55823700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":265.849337,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":356.923837,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":284.2785,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":104.2785,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2027,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461751.770833,"kali_year":5129,"ahargana":1873286.2708,"sun":{"sidereal_longitude":235.0349,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":32.9343,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":157.8994,"elapsed_within_tithi_degrees":1.8994},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.9343,"elapsed_within_degrees":6.2676},"yoga":{"number":21,"name":"Siddha","sum_longitude":267.9692},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.263,"elongation":157.899},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.263,"opposition_distance":22.101}},"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":"07:04","sunsetLocal":"17:19","solarNoonLocal":"12:11","dayLengthHours":10.241435412068535,"dayLengthDisplay":"10 Hours 14 Mins 29 Secs","nightLengthDisplay":"13 Hours 45 Mins 31 Secs","moonriseLocal":"15:55","moonsetLocal":"05:37","rahuKala":{"name":"Rāhu Kāla","start":"16:02","end":"17:19","startHours":16.03034012850715,"endHours":17.310519555015716,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:11","end":"13:28","startHours":12.18980184898145,"endHours":13.469981275490015,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:45","end":"16:02","startHours":14.750160701998583,"endHours":16.03034012850715,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:48","startHours":9.458752405763173,"endHours":9.800133586165458,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:46","startHours":7.495810618450037,"endHours":7.7689155627718645,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:32","startHours":11.848420668579163,"endHours":12.531183029383733,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:23","startHours":5.703559421338044,"endHours":6.386321782142613,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:04","startHours":6.21563119194147,"endHours":7.069084142947181,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:54","end":"14:35","startHours":13.89670775099287,"endHours":14.57947011179744,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.110519555015717,"endHours":17.510519555015716,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:44","startHours":17.310519555015716,"endHours":17.737246030518573,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.060519555015716,"endHours":18.810519555015716,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:32","startHours":23.848420668579163,"endHours":24.53118302938373,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:04","end":"08:21","startHours":7.069084142947181,"endHours":8.349263569455749,"quality":"inauspicious"},{"name":"Chala","start":"08:21","end":"09:38","startHours":8.349263569455749,"endHours":9.629442995964315,"quality":"neutral"},{"name":"Labha","start":"09:38","end":"10:55","startHours":9.629442995964315,"endHours":10.909622422472882,"quality":"auspicious"},{"name":"Amṛta","start":"10:55","end":"12:11","startHours":10.909622422472882,"endHours":12.18980184898145,"quality":"auspicious"},{"name":"Kāla","start":"12:11","end":"13:28","startHours":12.18980184898145,"endHours":13.469981275490015,"quality":"inauspicious"},{"name":"Śubha","start":"13:28","end":"14:45","startHours":13.469981275490015,"endHours":14.750160701998583,"quality":"auspicious"},{"name":"Roga","start":"14:45","end":"16:02","startHours":14.750160701998583,"endHours":16.03034012850715,"quality":"inauspicious"},{"name":"Udveg","start":"16:02","end":"17:19","startHours":16.03034012850715,"endHours":17.310519555015716,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:19","end":"19:02","startHours":17.310519555015716,"endHours":19.03034012850715,"quality":"auspicious"},{"name":"Roga","start":"19:02","end":"20:45","startHours":19.03034012850715,"endHours":20.75016070199858,"quality":"inauspicious"},{"name":"Udveg","start":"20:45","end":"22:28","startHours":20.75016070199858,"endHours":22.469981275490014,"quality":"inauspicious"},{"name":"Chala","start":"22:28","end":"00:11","startHours":22.469981275490014,"endHours":24.18980184898145,"quality":"neutral"},{"name":"Labha","start":"00:11","end":"01:55","startHours":24.18980184898145,"endHours":25.909622422472882,"quality":"auspicious"},{"name":"Amṛta","start":"01:55","end":"03:38","startHours":25.909622422472882,"endHours":27.629442995964315,"quality":"auspicious"},{"name":"Kāla","start":"03:38","end":"05:21","startHours":27.629442995964315,"endHours":29.34926356945575,"quality":"inauspicious"},{"name":"Śubha","start":"05:21","end":"07:04","startHours":29.34926356945575,"endHours":31.069084142947183,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.069084142947181,"endHours":8.069084142947181,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.069084142947181,"endHours":9.069084142947181,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.069084142947181,"endHours":10.069084142947181,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.069084142947181,"endHours":11.069084142947181,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.069084142947181,"endHours":12.069084142947181,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.069084142947181,"endHours":13.069084142947181,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.069084142947181,"endHours":14.069084142947181,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.069084142947181,"endHours":15.069084142947181,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.069084142947181,"endHours":16.069084142947183,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.069084142947183,"endHours":17.069084142947183,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.069084142947183,"endHours":18.069084142947183,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.069084142947183,"endHours":19.069084142947183,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.069084142947183,"endHours":20.069084142947183,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.069084142947183,"endHours":21.069084142947183,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.069084142947183,"endHours":22.069084142947183,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.069084142947183,"endHours":23.069084142947183,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.069084142947183,"endHours":24.069084142947183,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.069084142947183,"endHours":25.069084142947183,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.069084142947183,"endHours":26.069084142947183,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.069084142947183,"endHours":27.069084142947183,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.069084142947183,"endHours":28.069084142947183,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.069084142947183,"endHours":29.069084142947183,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.069084142947183,"endHours":30.069084142947183,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.069084142947183,"endHours":31.069084142947183,"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"},"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":-23.041603358085585,"eotMinutes":5.541489061113115,"ayanamsa":24.2434}},"calendars":{"vikram_samvat":2084,"vikram_samvatsara":"Raudra","saka_samvat":1949,"saka_samvatsara":"Plavaṅga","bengali_samvat":1434,"malayalam_era":1203,"nanakshahi_year":558,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram 2084 Raudra · Śaka 1949 Plavaṅga"},"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":"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 December 12, 2027 CE · Ṛṣikeśa · Vidhyamitra","description":"December 12, 2027 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 07:04, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2027-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2027-12-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/2027-12-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/2027-12-12","x-default":"https://vidhyamitra.com/city/rishikesh/2027-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T12:14:42.654Z","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":"2026-05-15T12:14:42.654Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T12:14:42.654Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}