{"id":"vidhyamitra:city-day:rishikesh:2005-12-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2005-12-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2005-12-12","date_display":"December 12, 2005 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":2005,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453716.770833,"kali_year":5107,"ahargana":1865251.2708,"sun":{"sidereal_longitude":235.7448,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":12.104,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.3591,"elapsed_within_tithi_degrees":4.3591},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":12.104,"elapsed_within_degrees":12.104},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.8488},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2005,"month":12,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453716.770833,"ahargana":1865251.2708,"kali_year":5107,"ayanamsa_lahiri":23.9361,"grahas":{"sun":{"sidereal_longitude":236.170433,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":12.37213300000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":1.691},"mars":{"sidereal_longitude":14.249032999999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":215.009633,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":196.430833,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":274.61413300000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":106.87843299999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":350.0115,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":170.0115,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2005,"month":12,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453716.770833,"kali_year":5107,"ahargana":1865251.2708,"sun":{"sidereal_longitude":235.7448,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":12.104,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.3591,"elapsed_within_tithi_degrees":4.3591},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":12.104,"elapsed_within_degrees":12.104},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.8488},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.691,"elongation":136.359},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.691,"opposition_distance":43.641}},"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":10.239021853191634,"dayLengthDisplay":"10 Hours 14 Mins 20 Secs","nightLengthDisplay":"13 Hours 45 Mins 40 Secs","moonriseLocal":"14:41","moonsetLocal":"03:51","rahuKala":{"name":"Rāhu Kāla","start":"08:21","end":"09:38","startHours":8.350168654034585,"endHours":9.630046385683539,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:55","end":"12:11","startHours":10.909924117332492,"endHours":12.189801848981446,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:28","end":"14:45","startHours":13.469679580630402,"endHours":14.749557312279356,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:48","startHours":9.459396021463679,"endHours":9.800696749903398,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:30","end":"07:46","startHours":7.496916832935281,"endHours":7.769957415687058,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:32","startHours":11.848501120541727,"endHours":12.53110257742117,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:42","end":"06:23","startHours":5.7050880086267455,"endHours":6.387689465506188,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:04","startHours":6.2170391012863275,"endHours":7.07029092238563,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:54","end":"14:35","startHours":13.896305491180053,"endHours":14.578906948059496,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.109312775577266,"endHours":17.509312775577264,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:44","startHours":17.309312775577265,"endHours":17.735938686126918,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.059312775577265,"endHours":18.809312775577265,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:32","startHours":23.848501120541727,"endHours":24.531102577421166,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:04","end":"08:21","startHours":7.07029092238563,"endHours":8.350168654034585,"quality":"auspicious"},{"name":"Kāla","start":"08:21","end":"09:38","startHours":8.350168654034585,"endHours":9.630046385683539,"quality":"inauspicious"},{"name":"Śubha","start":"09:38","end":"10:55","startHours":9.630046385683539,"endHours":10.909924117332492,"quality":"auspicious"},{"name":"Roga","start":"10:55","end":"12:11","startHours":10.909924117332492,"endHours":12.189801848981446,"quality":"inauspicious"},{"name":"Udveg","start":"12:11","end":"13:28","startHours":12.189801848981446,"endHours":13.469679580630402,"quality":"inauspicious"},{"name":"Chala","start":"13:28","end":"14:45","startHours":13.469679580630402,"endHours":14.749557312279356,"quality":"neutral"},{"name":"Labha","start":"14:45","end":"16:02","startHours":14.749557312279356,"endHours":16.02943504392831,"quality":"auspicious"},{"name":"Amṛta","start":"16:02","end":"17:19","startHours":16.02943504392831,"endHours":17.309312775577265,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:19","end":"19:02","startHours":17.309312775577265,"endHours":19.02943504392831,"quality":"neutral"},{"name":"Labha","start":"19:02","end":"20:45","startHours":19.02943504392831,"endHours":20.749557312279357,"quality":"auspicious"},{"name":"Amṛta","start":"20:45","end":"22:28","startHours":20.749557312279357,"endHours":22.4696795806304,"quality":"auspicious"},{"name":"Kāla","start":"22:28","end":"00:11","startHours":22.4696795806304,"endHours":24.189801848981446,"quality":"inauspicious"},{"name":"Śubha","start":"00:11","end":"01:55","startHours":24.189801848981446,"endHours":25.909924117332494,"quality":"auspicious"},{"name":"Roga","start":"01:55","end":"03:38","startHours":25.909924117332494,"endHours":27.63004638568354,"quality":"inauspicious"},{"name":"Udveg","start":"03:38","end":"05:21","startHours":27.63004638568354,"endHours":29.350168654034583,"quality":"inauspicious"},{"name":"Chala","start":"05:21","end":"07:04","startHours":29.350168654034583,"endHours":31.07029092238563,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.07029092238563,"endHours":8.070290922385631,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.070290922385631,"endHours":9.070290922385631,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.070290922385631,"endHours":10.070290922385631,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.070290922385631,"endHours":11.070290922385631,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.070290922385631,"endHours":12.070290922385631,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.070290922385631,"endHours":13.070290922385631,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.070290922385631,"endHours":14.070290922385631,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.070290922385631,"endHours":15.070290922385631,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.070290922385631,"endHours":16.07029092238563,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.07029092238563,"endHours":17.07029092238563,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.07029092238563,"endHours":18.07029092238563,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.07029092238563,"endHours":19.07029092238563,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.07029092238563,"endHours":20.07029092238563,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.07029092238563,"endHours":21.07029092238563,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.07029092238563,"endHours":22.07029092238563,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.07029092238563,"endHours":23.07029092238563,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.07029092238563,"endHours":24.07029092238563,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.07029092238563,"endHours":25.07029092238563,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.07029092238563,"endHours":26.07029092238563,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.07029092238563,"endHours":27.07029092238563,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.07029092238563,"endHours":28.07029092238563,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.07029092238563,"endHours":29.07029092238563,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.07029092238563,"endHours":30.07029092238563,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.07029092238563,"endHours":31.07029092238563,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"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":-23.067652573657153,"eotMinutes":5.541489061113115,"ayanamsa":23.9361}},"calendars":{"vikram_samvat":2062,"vikram_samvatsara":"Vilambī","saka_samvat":1927,"saka_samvatsara":"Pārthiva","bengali_samvat":1412,"malayalam_era":1181,"nanakshahi_year":536,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Dvādaśī · Vikram 2062 Vilambī · Śaka 1927 Pārthiva"},"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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, 2005 CE · Ṛṣikeśa · Vidhyamitra","description":"December 12, 2005 CE for Ṛṣikeśa: Śukla Dvādaśī, sūryodaya 07:04, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2005-12-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2005-12-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/2005-12-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/2005-12-12","x-default":"https://vidhyamitra.com/city/rishikesh/2005-12-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T22:17:11.334Z","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":"2026-05-16T22:17:11.334Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T22:17:11.334Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}