{"id":"vidhyamitra:city-day:kozhikode:2011-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kozhikode/2011-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-18","date_display":"December 18, 2011 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":2011,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455913.770833,"kali_year":5113,"ahargana":1867448.2708,"sun":{"sidereal_longitude":241.333,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":153.4631,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.13,"elapsed_within_tithi_degrees":8.13},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4631,"elapsed_within_degrees":6.7964},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.7961},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":2011,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455913.770833,"ahargana":1867448.2708,"kali_year":5113,"ayanamsa_lahiri":24.0201,"grahas":{"sun":{"sidereal_longitude":241.72529099999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":151.85939099999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":-4.4334},"mars":{"sidereal_longitude":141.77919099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":220.738291,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":6.30179099999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":272.4591909999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":182.987891,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":233.6038,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":53.6038,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"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":2011,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455913.770833,"kali_year":5113,"ahargana":1867448.2708,"sun":{"sidereal_longitude":241.333,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":153.4631,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.13,"elapsed_within_tithi_degrees":8.13},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4631,"elapsed_within_degrees":6.7964},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.7961},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.433,"elongation":87.87},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.433,"opposition_distance":92.13}},"eclipse_window_40days":[]},"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:40","sunsetLocal":"18:08","solarNoonLocal":"12:24","dayLengthHours":11.465823165829491,"dayLengthDisplay":"11 Hours 27 Mins 57 Secs","nightLengthDisplay":"12 Hours 32 Mins 03 Secs","moonriseLocal":"00:21","moonsetLocal":"12:28","rahuKala":{"name":"Rāhu Kāla","start":"16:42","end":"18:08","startHours":16.701194898050375,"endHours":18.13442279377906,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:24","end":"13:50","startHours":12.401511210864314,"endHours":13.834739106593002,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:16","end":"16:42","startHours":15.267967002321686,"endHours":16.701194898050375,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:44","startHours":9.343958366643117,"endHours":9.726152472170767,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.146342259859131,"endHours":7.452097544281251,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:47","startHours":12.019317105336665,"endHours":12.783705316391963,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:08","end":"05:54","startHours":5.139823205838971,"endHours":5.904211416894269,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:43","end":"06:40","startHours":5.713114364130445,"endHours":6.668599627949569,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:05","startHours":14.312481738502562,"endHours":15.076869949557862,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.93442279377906,"endHours":18.33442279377906,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:37","startHours":18.13442279377906,"endHours":18.612165425688623,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.88442279377906,"endHours":19.63442279377906,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:47","startHours":24.019317105336665,"endHours":24.783705316391963,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:40","end":"08:06","startHours":6.668599627949569,"endHours":8.101827523678256,"quality":"inauspicious"},{"name":"Chala","start":"08:06","end":"09:32","startHours":8.101827523678256,"endHours":9.535055419406941,"quality":"neutral"},{"name":"Labha","start":"09:32","end":"10:58","startHours":9.535055419406941,"endHours":10.96828331513563,"quality":"auspicious"},{"name":"Amṛta","start":"10:58","end":"12:24","startHours":10.96828331513563,"endHours":12.401511210864314,"quality":"auspicious"},{"name":"Kāla","start":"12:24","end":"13:50","startHours":12.401511210864314,"endHours":13.834739106593002,"quality":"inauspicious"},{"name":"Śubha","start":"13:50","end":"15:16","startHours":13.834739106593002,"endHours":15.267967002321686,"quality":"auspicious"},{"name":"Roga","start":"15:16","end":"16:42","startHours":15.267967002321686,"endHours":16.701194898050375,"quality":"inauspicious"},{"name":"Udveg","start":"16:42","end":"18:08","startHours":16.701194898050375,"endHours":18.13442279377906,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:08","end":"19:42","startHours":18.13442279377906,"endHours":19.701194898050375,"quality":"auspicious"},{"name":"Roga","start":"19:42","end":"21:16","startHours":19.701194898050375,"endHours":21.267967002321686,"quality":"inauspicious"},{"name":"Udveg","start":"21:16","end":"22:50","startHours":21.267967002321686,"endHours":22.834739106593,"quality":"inauspicious"},{"name":"Chala","start":"22:50","end":"00:24","startHours":22.834739106593,"endHours":24.401511210864314,"quality":"neutral"},{"name":"Labha","start":"00:24","end":"01:58","startHours":24.401511210864314,"endHours":25.96828331513563,"quality":"auspicious"},{"name":"Amṛta","start":"01:58","end":"03:32","startHours":25.96828331513563,"endHours":27.53505541940694,"quality":"auspicious"},{"name":"Kāla","start":"03:32","end":"05:06","startHours":27.53505541940694,"endHours":29.101827523678253,"quality":"inauspicious"},{"name":"Śubha","start":"05:06","end":"06:40","startHours":29.101827523678253,"endHours":30.66859962794957,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:40","end":"07:40","startHours":6.668599627949569,"endHours":7.668599627949569,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:40","end":"08:40","startHours":7.668599627949569,"endHours":8.668599627949568,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:40","end":"09:40","startHours":8.668599627949568,"endHours":9.668599627949568,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:40","end":"10:40","startHours":9.668599627949568,"endHours":10.668599627949568,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:40","end":"11:40","startHours":10.668599627949568,"endHours":11.668599627949568,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:40","end":"12:40","startHours":11.668599627949568,"endHours":12.668599627949568,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:40","end":"13:40","startHours":12.668599627949568,"endHours":13.668599627949568,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:40","end":"14:40","startHours":13.668599627949568,"endHours":14.668599627949568,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:40","end":"15:40","startHours":14.668599627949568,"endHours":15.668599627949568,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:40","end":"16:40","startHours":15.668599627949568,"endHours":16.66859962794957,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:40","end":"17:40","startHours":16.66859962794957,"endHours":17.66859962794957,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:40","end":"18:40","startHours":17.66859962794957,"endHours":18.66859962794957,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:40","end":"19:40","startHours":18.66859962794957,"endHours":19.66859962794957,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:40","end":"20:40","startHours":19.66859962794957,"endHours":20.66859962794957,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:40","end":"21:40","startHours":20.66859962794957,"endHours":21.66859962794957,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:40","end":"22:40","startHours":21.66859962794957,"endHours":22.66859962794957,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:40","end":"23:40","startHours":22.66859962794957,"endHours":23.66859962794957,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:40","end":"00:40","startHours":23.66859962794957,"endHours":24.66859962794957,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:40","end":"01:40","startHours":24.66859962794957,"endHours":25.66859962794957,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:40","end":"02:40","startHours":25.66859962794957,"endHours":26.66859962794957,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:40","end":"03:40","startHours":26.66859962794957,"endHours":27.66859962794957,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:40","end":"04:40","startHours":27.66859962794957,"endHours":28.66859962794957,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:40","end":"05:40","startHours":28.66859962794957,"endHours":29.66859962794957,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:40","end":"06:40","startHours":29.66859962794957,"endHours":30.66859962794957,"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","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":-23.368071174064053,"eotMinutes":2.787727348141232,"ayanamsa":24.0201}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Aṣṭamī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[],"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":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"kozhikode"},"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, 2011 CE · Kozhikode (Calicut), Kerala · Vidhyamitra","description":"December 18, 2011 CE for Kozhikode (Calicut), Kerala: Kṛṣṇa Aṣṭamī, sūryodaya 06:40, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kozhikode/2011-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kozhikode/2011-12-18","sa":"https://sa.vidhyamitra.com/city/kozhikode/2011-12-18","hi":"https://hi.vidhyamitra.com/city/kozhikode/2011-12-18","x-default":"https://vidhyamitra.com/city/kozhikode/2011-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:59:07.572Z","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":"2026-06-01T07:59:07.572Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:59:07.572Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}