{"id":"vidhyamitra:city-day:vellore:2012-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vellore/2012-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-12-20","date_display":"December 20, 2012 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":2012,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456281.770833,"kali_year":5114,"ahargana":1867816.2708,"sun":{"sidereal_longitude":244.1476,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.132,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.9844,"elapsed_within_tithi_degrees":0.9844},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.132,"elapsed_within_degrees":9.132},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.2797},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"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":2012,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456281.770833,"ahargana":1867816.2708,"kali_year":5114,"ayanamsa_lahiri":24.0342,"grahas":{"sun":{"sidereal_longitude":244.51883099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":332.44603099999995,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":4.0767},"mars":{"sidereal_longitude":271.153331,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":228.29493100000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":44.63863100000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":220.60853099999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":194.22713099999999,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":214.1054,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":34.1054,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2012,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456281.770833,"kali_year":5114,"ahargana":1867816.2708,"sun":{"sidereal_longitude":244.1476,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.132,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.9844,"elapsed_within_tithi_degrees":0.9844},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.132,"elapsed_within_degrees":9.132},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.2797},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.077,"elongation":84.984},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.077,"opposition_distance":95.016}},"eclipse_window_40days":[]},"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:31","sunsetLocal":"17:53","solarNoonLocal":"12:12","dayLengthHours":11.364263261898378,"dayLengthDisplay":"11 Hours 21 Mins 51 Secs","nightLengthDisplay":"12 Hours 38 Mins 09 Secs","moonriseLocal":"12:02","moonsetLocal":"00:04","rahuKala":{"name":"Rāhu Kāla","start":"13:37","end":"15:02","startHours":13.614167615696152,"endHours":15.034700523433449,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:31","end":"07:56","startHours":6.511503077009666,"endHours":7.932035984746963,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:21","end":"10:46","startHours":9.35256889248426,"endHours":10.773101800221557,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:10","end":"09:33","startHours":9.163164504785954,"endHours":9.541973280182567,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:59","end":"07:17","startHours":6.985014046255431,"endHours":7.2880610665727215,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:34","startHours":11.814825932562243,"endHours":12.572443483355467,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:00","end":"05:45","startHours":4.9962679754232155,"endHours":5.753885526216441,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:34","end":"06:31","startHours":5.5644811385181345,"endHours":6.511503077009666,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:51","startHours":14.087678584941917,"endHours":14.845296135735143,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:41","end":"18:05","startHours":17.675766338908044,"endHours":18.075766338908043,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:53","end":"18:21","startHours":17.875766338908043,"endHours":18.34927730815381,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:38","end":"19:23","startHours":17.625766338908043,"endHours":19.375766338908043,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:34","startHours":23.814825932562243,"endHours":24.57244348335547,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:31","end":"07:56","startHours":6.511503077009666,"endHours":7.932035984746963,"quality":"auspicious"},{"name":"Roga","start":"07:56","end":"09:21","startHours":7.932035984746963,"endHours":9.35256889248426,"quality":"inauspicious"},{"name":"Udveg","start":"09:21","end":"10:46","startHours":9.35256889248426,"endHours":10.773101800221557,"quality":"inauspicious"},{"name":"Chala","start":"10:46","end":"12:12","startHours":10.773101800221557,"endHours":12.193634707958854,"quality":"neutral"},{"name":"Labha","start":"12:12","end":"13:37","startHours":12.193634707958854,"endHours":13.614167615696152,"quality":"auspicious"},{"name":"Amṛta","start":"13:37","end":"15:02","startHours":13.614167615696152,"endHours":15.034700523433449,"quality":"auspicious"},{"name":"Kāla","start":"15:02","end":"16:27","startHours":15.034700523433449,"endHours":16.455233431170747,"quality":"inauspicious"},{"name":"Śubha","start":"16:27","end":"17:53","startHours":16.455233431170747,"endHours":17.875766338908043,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:53","end":"19:27","startHours":17.875766338908043,"endHours":19.455233431170747,"quality":"auspicious"},{"name":"Kāla","start":"19:27","end":"21:02","startHours":19.455233431170747,"endHours":21.03470052343345,"quality":"inauspicious"},{"name":"Śubha","start":"21:02","end":"22:37","startHours":21.03470052343345,"endHours":22.614167615696154,"quality":"auspicious"},{"name":"Roga","start":"22:37","end":"00:12","startHours":22.614167615696154,"endHours":24.193634707958854,"quality":"inauspicious"},{"name":"Udveg","start":"00:12","end":"01:46","startHours":24.193634707958854,"endHours":25.773101800221557,"quality":"inauspicious"},{"name":"Chala","start":"01:46","end":"03:21","startHours":25.773101800221557,"endHours":27.35256889248426,"quality":"neutral"},{"name":"Labha","start":"03:21","end":"04:56","startHours":27.35256889248426,"endHours":28.93203598474696,"quality":"auspicious"},{"name":"Amṛta","start":"04:56","end":"06:31","startHours":28.93203598474696,"endHours":30.511503077009664,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:31","end":"07:31","startHours":6.511503077009666,"endHours":7.511503077009666,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:31","end":"08:31","startHours":7.511503077009666,"endHours":8.511503077009666,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:31","end":"09:31","startHours":8.511503077009666,"endHours":9.511503077009666,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:31","end":"10:31","startHours":9.511503077009666,"endHours":10.511503077009666,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:31","end":"11:31","startHours":10.511503077009666,"endHours":11.511503077009666,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:31","end":"12:31","startHours":11.511503077009666,"endHours":12.511503077009666,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:31","end":"13:31","startHours":12.511503077009666,"endHours":13.511503077009666,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:31","end":"14:31","startHours":13.511503077009666,"endHours":14.511503077009666,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:31","end":"15:31","startHours":14.511503077009666,"endHours":15.511503077009666,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:31","end":"16:31","startHours":15.511503077009666,"endHours":16.511503077009664,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:31","end":"17:31","startHours":16.511503077009664,"endHours":17.511503077009664,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:31","end":"18:31","startHours":17.511503077009664,"endHours":18.511503077009664,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:31","end":"19:31","startHours":18.511503077009664,"endHours":19.511503077009664,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:31","end":"20:31","startHours":19.511503077009664,"endHours":20.511503077009664,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:31","end":"21:31","startHours":20.511503077009664,"endHours":21.511503077009664,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:31","end":"22:31","startHours":21.511503077009664,"endHours":22.511503077009664,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:31","end":"23:31","startHours":22.511503077009664,"endHours":23.511503077009664,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:31","end":"00:31","startHours":23.511503077009664,"endHours":24.511503077009664,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:31","end":"01:31","startHours":24.511503077009664,"endHours":25.511503077009664,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:31","end":"02:31","startHours":25.511503077009664,"endHours":26.511503077009664,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:31","end":"03:31","startHours":26.511503077009664,"endHours":27.511503077009664,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:31","end":"04:31","startHours":27.511503077009664,"endHours":28.511503077009664,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:31","end":"05:31","startHours":28.511503077009664,"endHours":29.511503077009664,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:31","end":"06:31","startHours":29.511503077009664,"endHours":30.511503077009664,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mānasa","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":-23.428580203595757,"eotMinutes":1.851917522468745,"ayanamsa":24.0342}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","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":"Mārgaśīrṣa Śukla Aṣṭamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[],"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":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"vellore"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 20, 2012 CE · Vellore, Tamil Nadu · Vidhyamitra","description":"December 20, 2012 CE for Vellore, Tamil Nadu: Śukla Aṣṭamī, sūryodaya 06:31, sūryāsta 17:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vellore/2012-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vellore/2012-12-20","sa":"https://sa.vidhyamitra.com/city/vellore/2012-12-20","hi":"https://hi.vidhyamitra.com/city/vellore/2012-12-20","x-default":"https://vidhyamitra.com/city/vellore/2012-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:54:28.040Z","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":"2026-06-01T16:54:28.040Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:54:28.040Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}