{"id":"vidhyamitra:city-day:rishikesh:2085-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2085-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2085-12-18","date_display":"December 18, 2085 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":2085,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2482942.770833,"kali_year":5187,"ahargana":1894477.2708,"sun":{"sidereal_longitude":241.1811,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":253.875,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.6939,"elapsed_within_tithi_degrees":0.6939},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":253.875,"elapsed_within_degrees":0.5417},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":135.0561},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2085,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2482942.770833,"ahargana":1894477.2708,"kali_year":5187,"ayanamsa_lahiri":25.0538,"grahas":{"sun":{"sidereal_longitude":241.74988500000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":256.02208500000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":0.9652},"mars":{"sidereal_longitude":223.745185,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":230.29298500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":111.77568500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":243.88028499999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":344.606585,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":241.4773,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":61.4773,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2085,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2482942.770833,"kali_year":5187,"ahargana":1894477.2708,"sun":{"sidereal_longitude":241.1811,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":253.875,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":12.6939,"elapsed_within_tithi_degrees":0.6939},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":253.875,"elapsed_within_degrees":0.5417},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":135.0561},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.965,"elongation":12.694},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.965,"opposition_distance":167.306}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":-0.112,"elongation":0.058},{"offset_days":13,"type":"lunar","occurs":true,"moon_latitude":-1.246,"opposition_distance":2.344}]},"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":"07:08","sunsetLocal":"17:20","solarNoonLocal":"12:14","dayLengthHours":10.208331531335471,"dayLengthDisplay":"10 Hours 12 Mins 30 Secs","nightLengthDisplay":"13 Hours 47 Mins 30 Secs","moonriseLocal":"08:05","moonsetLocal":"18:17","rahuKala":{"name":"Rāhu Kāla","start":"14:47","end":"16:04","startHours":14.787780760364846,"endHours":16.063822201781782,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:41","end":"10:58","startHours":9.683614994697113,"endHours":10.959656436114045,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:14","end":"13:31","startHours":12.23569787753098,"endHours":13.511739318947914,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:31","end":"09:51","startHours":9.51347613584152,"endHours":9.853753853552703,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:50","startHours":7.556879259002222,"endHours":7.829101433171168,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:35","startHours":11.895420159819798,"endHours":12.575975595242161,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:27","startHours":5.770421241018514,"endHours":6.450976676440879,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:17","end":"07:08","startHours":6.280837817585288,"endHours":7.131532111863244,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.937086466086893,"endHours":14.617641901509257,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:08","end":"17:32","startHours":17.139863643198716,"endHours":17.539863643198714,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:20","end":"17:46","startHours":17.339863643198715,"endHours":17.765210790337694,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:05","end":"18:50","startHours":17.089863643198715,"endHours":18.839863643198715,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:35","startHours":23.8954201598198,"endHours":24.575975595242163,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:08","end":"08:24","startHours":7.131532111863244,"endHours":8.407573553280178,"quality":"inauspicious"},{"name":"Udveg","start":"08:24","end":"09:41","startHours":8.407573553280178,"endHours":9.683614994697113,"quality":"inauspicious"},{"name":"Chala","start":"09:41","end":"10:58","startHours":9.683614994697113,"endHours":10.959656436114045,"quality":"neutral"},{"name":"Labha","start":"10:58","end":"12:14","startHours":10.959656436114045,"endHours":12.23569787753098,"quality":"auspicious"},{"name":"Amṛta","start":"12:14","end":"13:31","startHours":12.23569787753098,"endHours":13.511739318947914,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:47","startHours":13.511739318947914,"endHours":14.787780760364846,"quality":"inauspicious"},{"name":"Śubha","start":"14:47","end":"16:04","startHours":14.787780760364846,"endHours":16.063822201781782,"quality":"auspicious"},{"name":"Roga","start":"16:04","end":"17:20","startHours":16.063822201781782,"endHours":17.339863643198715,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:20","end":"19:04","startHours":17.339863643198715,"endHours":19.063822201781782,"quality":"inauspicious"},{"name":"Śubha","start":"19:04","end":"20:47","startHours":19.063822201781782,"endHours":20.787780760364846,"quality":"auspicious"},{"name":"Roga","start":"20:47","end":"22:31","startHours":20.787780760364846,"endHours":22.511739318947914,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:14","startHours":22.511739318947914,"endHours":24.23569787753098,"quality":"inauspicious"},{"name":"Chala","start":"00:14","end":"01:58","startHours":24.23569787753098,"endHours":25.959656436114045,"quality":"neutral"},{"name":"Labha","start":"01:58","end":"03:41","startHours":25.959656436114045,"endHours":27.683614994697113,"quality":"auspicious"},{"name":"Amṛta","start":"03:41","end":"05:24","startHours":27.683614994697113,"endHours":29.40757355328018,"quality":"auspicious"},{"name":"Kāla","start":"05:24","end":"07:08","startHours":29.40757355328018,"endHours":31.131532111863244,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.131532111863244,"endHours":8.131532111863244,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.131532111863244,"endHours":9.131532111863244,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.131532111863244,"endHours":10.131532111863244,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.131532111863244,"endHours":11.131532111863244,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.131532111863244,"endHours":12.131532111863244,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.131532111863244,"endHours":13.131532111863244,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.131532111863244,"endHours":14.131532111863244,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.131532111863244,"endHours":15.131532111863244,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.131532111863244,"endHours":16.131532111863244,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.131532111863244,"endHours":17.131532111863244,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.131532111863244,"endHours":18.131532111863244,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.131532111863244,"endHours":19.131532111863244,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.131532111863244,"endHours":20.131532111863244,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.131532111863244,"endHours":21.131532111863244,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.131532111863244,"endHours":22.131532111863244,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.131532111863244,"endHours":23.131532111863244,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.131532111863244,"endHours":24.131532111863244,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.131532111863244,"endHours":25.131532111863244,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.131532111863244,"endHours":26.131532111863244,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.131532111863244,"endHours":27.131532111863244,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.131532111863244,"endHours":28.131532111863244,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.131532111863244,"endHours":29.131532111863244,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.131532111863244,"endHours":30.131532111863244,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.131532111863244,"endHours":31.131532111863244,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.397867329038256,"eotMinutes":2.787727348141232,"ayanamsa":25.0538}},"calendars":{"vikram_samvat":2142,"vikram_samvatsara":"Kālayukta","saka_samvat":2007,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1492,"malayalam_era":1261,"nanakshahi_year":616,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvitīyā · Vikram 2142 Kālayukta · Śaka 2007 Viśvāvasu"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 18, 2085 CE · Ṛṣikeśa · Vidhyamitra","description":"December 18, 2085 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 07:08, sūryāsta 17:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2085-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2085-12-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/2085-12-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/2085-12-18","x-default":"https://vidhyamitra.com/city/rishikesh/2085-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:54:23.141Z","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":"2026-05-31T00:54:23.141Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:54:23.141Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}