{"id":"vidhyamitra:city-day:rishikesh:2001-12-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2001-12-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-12-27","date_display":"December 27, 2001 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":2001,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452270.770833,"kali_year":5103,"ahargana":1863805.2708,"sun":{"sidereal_longitude":251.1823,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":28.4396,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.2572,"elapsed_within_tithi_degrees":5.2572},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":28.4396,"elapsed_within_degrees":1.7729},"yoga":{"number":21,"name":"Siddha","sum_longitude":279.6219},"karana":{"half_tithi_index":22,"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":2001,"month":12,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452270.770833,"ahargana":1863805.2708,"kali_year":5103,"ayanamsa_lahiri":23.8808,"grahas":{"sun":{"sidereal_longitude":251.46628099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":28.623781000000008,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":-2.7803},"mars":{"sidereal_longitude":319.375181,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":263.966281,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":77.35618099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":247.05198100000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":45.666480999999976,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":66.6275,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":246.6275,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"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":2001,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452270.770833,"kali_year":5103,"ahargana":1863805.2708,"sun":{"sidereal_longitude":251.1823,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":28.4396,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.2572,"elapsed_within_tithi_degrees":5.2572},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":28.4396,"elapsed_within_degrees":1.7729},"yoga":{"number":21,"name":"Siddha","sum_longitude":279.6219},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.78,"elongation":137.257},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.78,"opposition_distance":42.743}},"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":"07:12","sunsetLocal":"17:25","solarNoonLocal":"12:18","dayLengthHours":10.214796674774272,"dayLengthDisplay":"10 Hours 12 Mins 53 Secs","nightLengthDisplay":"13 Hours 47 Mins 07 Secs","moonriseLocal":"14:40","moonsetLocal":"04:14","rahuKala":{"name":"Rāhu Kāla","start":"13:35","end":"14:52","startHours":13.582754686270635,"endHours":14.85960427061742,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:12","end":"08:29","startHours":7.198506764536715,"endHours":8.4753563488835,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:45","end":"11:02","startHours":9.752205933230282,"endHours":11.029055517577067,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:55","startHours":9.581959321984044,"endHours":9.92245254447652,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:37","end":"07:54","startHours":7.6241232926523095,"endHours":7.89651787064629,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:39","startHours":11.965411879431374,"endHours":12.646398324416326,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.836533874566812,"endHours":6.517520319551764,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:12","startHours":6.347273708305526,"endHours":7.198506764536715,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:41","startHours":14.00837121438623,"endHours":14.689357659371181,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:13","end":"17:37","startHours":17.213303439310987,"endHours":17.613303439310986,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:25","end":"17:50","startHours":17.413303439310987,"endHours":17.83891996742658,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:10","end":"18:55","startHours":17.163303439310987,"endHours":18.913303439310987,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:39","startHours":23.96541187943137,"endHours":24.646398324416324,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:12","end":"08:29","startHours":7.198506764536715,"endHours":8.4753563488835,"quality":"auspicious"},{"name":"Roga","start":"08:29","end":"09:45","startHours":8.4753563488835,"endHours":9.752205933230282,"quality":"inauspicious"},{"name":"Udveg","start":"09:45","end":"11:02","startHours":9.752205933230282,"endHours":11.029055517577067,"quality":"inauspicious"},{"name":"Chala","start":"11:02","end":"12:18","startHours":11.029055517577067,"endHours":12.305905101923852,"quality":"neutral"},{"name":"Labha","start":"12:18","end":"13:35","startHours":12.305905101923852,"endHours":13.582754686270635,"quality":"auspicious"},{"name":"Amṛta","start":"13:35","end":"14:52","startHours":13.582754686270635,"endHours":14.85960427061742,"quality":"auspicious"},{"name":"Kāla","start":"14:52","end":"16:08","startHours":14.85960427061742,"endHours":16.136453854964202,"quality":"inauspicious"},{"name":"Śubha","start":"16:08","end":"17:25","startHours":16.136453854964202,"endHours":17.413303439310987,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:25","end":"19:08","startHours":17.413303439310987,"endHours":19.136453854964202,"quality":"auspicious"},{"name":"Kāla","start":"19:08","end":"20:52","startHours":19.136453854964202,"endHours":20.859604270617417,"quality":"inauspicious"},{"name":"Śubha","start":"20:52","end":"22:35","startHours":20.859604270617417,"endHours":22.582754686270633,"quality":"auspicious"},{"name":"Roga","start":"22:35","end":"00:18","startHours":22.582754686270633,"endHours":24.30590510192385,"quality":"inauspicious"},{"name":"Udveg","start":"00:18","end":"02:02","startHours":24.30590510192385,"endHours":26.029055517577067,"quality":"inauspicious"},{"name":"Chala","start":"02:02","end":"03:45","startHours":26.029055517577067,"endHours":27.752205933230282,"quality":"neutral"},{"name":"Labha","start":"03:45","end":"05:29","startHours":27.752205933230282,"endHours":29.4753563488835,"quality":"auspicious"},{"name":"Amṛta","start":"05:29","end":"07:12","startHours":29.4753563488835,"endHours":31.198506764536717,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.198506764536715,"endHours":8.198506764536715,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.198506764536715,"endHours":9.198506764536715,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.198506764536715,"endHours":10.198506764536715,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.198506764536715,"endHours":11.198506764536715,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.198506764536715,"endHours":12.198506764536715,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.198506764536715,"endHours":13.198506764536715,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.198506764536715,"endHours":14.198506764536715,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.198506764536715,"endHours":15.198506764536715,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.198506764536715,"endHours":16.198506764536717,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.198506764536717,"endHours":17.198506764536717,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.198506764536717,"endHours":18.198506764536717,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.198506764536717,"endHours":19.198506764536717,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.198506764536717,"endHours":20.198506764536717,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.198506764536717,"endHours":21.198506764536717,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.198506764536717,"endHours":22.198506764536717,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.198506764536717,"endHours":23.198506764536717,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.198506764536717,"endHours":24.198506764536717,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.198506764536717,"endHours":25.198506764536717,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.198506764536717,"endHours":26.198506764536717,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.198506764536717,"endHours":27.198506764536717,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.198506764536717,"endHours":28.198506764536717,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.198506764536717,"endHours":29.198506764536717,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.198506764536717,"endHours":30.198506764536717,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.198506764536717,"endHours":31.198506764536717,"planetary_lord":"Moon"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.328462941113628,"eotMinutes":-1.4247061154310068,"ayanamsa":23.8808}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvādaśī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[{"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 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 27, 2001 CE · Ṛṣikeśa · Vidhyamitra","description":"December 27, 2001 CE for Ṛṣikeśa: Śukla Dvādaśī, sūryodaya 07:12, sūryāsta 17:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2001-12-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2001-12-27","sa":"https://sa.vidhyamitra.com/city/rishikesh/2001-12-27","hi":"https://hi.vidhyamitra.com/city/rishikesh/2001-12-27","x-default":"https://vidhyamitra.com/city/rishikesh/2001-12-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T18:46:25.524Z","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":"2026-05-16T18:46:25.524Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T18:46:25.524Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}