{"id":"vidhyamitra:city-day:thiruvananthapuram:2011-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thiruvananthapuram/2011-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-01","date_display":"January 1, 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":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455562.770833,"kali_year":5112,"ahargana":1867097.2708,"sun":{"sidereal_longitude":255.9845,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":215.824,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.8395,"elapsed_within_tithi_degrees":7.8395},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.824,"elapsed_within_degrees":2.4906},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.8085},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455562.770833,"ahargana":1867097.2708,"kali_year":5112,"ayanamsa_lahiri":24.0067,"grahas":{"sun":{"sidereal_longitude":256.24710200000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":215.835602,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":-2.6672},"mars":{"sidereal_longitude":264.25660200000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":235.55290200000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":332.606402,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":209.38410199999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":172.40320199999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":252.2015,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":72.2015,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2011,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455562.770833,"kali_year":5112,"ahargana":1867097.2708,"sun":{"sidereal_longitude":255.9845,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":215.824,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.8395,"elapsed_within_tithi_degrees":7.8395},"nakshatra":{"number":17,"name":"Anurādhā","pada":1,"moon_longitude":215.824,"elapsed_within_degrees":2.4906},"yoga":{"number":9,"name":"Śūla","sum_longitude":111.8085},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.667,"elongation":40.161},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.667,"opposition_distance":139.839}},"eclipse_window_40days":[{"offset_days":3,"type":"solar","occurs":true,"moon_latitude":0.37,"elongation":2.307}]},"city":{"slug":"thiruvananthapuram","name":"Thiruvananthapuram, Kerala","lat":8.5241,"lon":76.9366,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thiruvananthapuram","name":"Thiruvananthapuram, Kerala","lat":8.5241,"lon":76.9366,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:37","sunsetLocal":"18:15","solarNoonLocal":"12:26","dayLengthHours":11.63491957959898,"dayLengthDisplay":"11 Hours 38 Mins 06 Secs","nightLengthDisplay":"12 Hours 21 Mins 54 Secs","moonriseLocal":"03:54","moonsetLocal":"15:34","rahuKala":{"name":"Rāhu Kāla","start":"09:31","end":"10:59","startHours":9.523916410490187,"endHours":10.97828135794006,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:53","end":"15:20","startHours":13.887011252839805,"endHours":15.341376200289679,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:37","end":"08:04","startHours":6.615186515590443,"endHours":8.069551463040316,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:20","end":"09:43","startHours":9.330001084163538,"endHours":9.717831736816837,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:06","end":"07:25","startHours":7.099974831407067,"endHours":7.410239353529707,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:49","startHours":12.044815652736634,"endHours":12.820476958043233,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:04","end":"05:50","startHours":5.063863904977246,"endHours":5.839525210283844,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:39","end":"06:37","startHours":5.645609883957194,"endHours":6.615186515590443,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:09","startHours":14.37179956865643,"endHours":15.147460873963029,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.050106095189424,"endHours":18.450106095189422,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:44","startHours":18.250106095189423,"endHours":18.734894411006046,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":18.000106095189423,"endHours":19.750106095189423,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:49","startHours":24.044815652736634,"endHours":24.820476958043233,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:37","end":"08:04","startHours":6.615186515590443,"endHours":8.069551463040316,"quality":"inauspicious"},{"name":"Śubha","start":"08:04","end":"09:31","startHours":8.069551463040316,"endHours":9.523916410490187,"quality":"auspicious"},{"name":"Roga","start":"09:31","end":"10:59","startHours":9.523916410490187,"endHours":10.97828135794006,"quality":"inauspicious"},{"name":"Udveg","start":"10:59","end":"12:26","startHours":10.97828135794006,"endHours":12.432646305389934,"quality":"inauspicious"},{"name":"Chala","start":"12:26","end":"13:53","startHours":12.432646305389934,"endHours":13.887011252839805,"quality":"neutral"},{"name":"Labha","start":"13:53","end":"15:20","startHours":13.887011252839805,"endHours":15.341376200289679,"quality":"auspicious"},{"name":"Amṛta","start":"15:20","end":"16:48","startHours":15.341376200289679,"endHours":16.795741147739548,"quality":"auspicious"},{"name":"Kāla","start":"16:48","end":"18:15","startHours":16.795741147739548,"endHours":18.250106095189423,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:15","end":"19:48","startHours":18.250106095189423,"endHours":19.79574114773955,"quality":"auspicious"},{"name":"Amṛta","start":"19:48","end":"21:20","startHours":19.79574114773955,"endHours":21.341376200289677,"quality":"auspicious"},{"name":"Kāla","start":"21:20","end":"22:53","startHours":21.341376200289677,"endHours":22.887011252839805,"quality":"inauspicious"},{"name":"Śubha","start":"22:53","end":"00:26","startHours":22.887011252839805,"endHours":24.432646305389934,"quality":"auspicious"},{"name":"Roga","start":"00:26","end":"01:59","startHours":24.432646305389934,"endHours":25.978281357940062,"quality":"inauspicious"},{"name":"Udveg","start":"01:59","end":"03:31","startHours":25.978281357940062,"endHours":27.523916410490187,"quality":"inauspicious"},{"name":"Chala","start":"03:31","end":"05:04","startHours":27.523916410490187,"endHours":29.069551463040316,"quality":"neutral"},{"name":"Labha","start":"05:04","end":"06:37","startHours":29.069551463040316,"endHours":30.615186515590445,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:37","end":"07:37","startHours":6.615186515590443,"endHours":7.615186515590443,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:37","end":"08:37","startHours":7.615186515590443,"endHours":8.615186515590443,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:37","end":"09:37","startHours":8.615186515590443,"endHours":9.615186515590443,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:37","end":"10:37","startHours":9.615186515590443,"endHours":10.615186515590443,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:37","end":"11:37","startHours":10.615186515590443,"endHours":11.615186515590443,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:37","end":"12:37","startHours":11.615186515590443,"endHours":12.615186515590443,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:37","end":"13:37","startHours":12.615186515590443,"endHours":13.615186515590443,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:37","end":"14:37","startHours":13.615186515590443,"endHours":14.615186515590443,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:37","end":"15:37","startHours":14.615186515590443,"endHours":15.615186515590443,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:37","end":"16:37","startHours":15.615186515590443,"endHours":16.615186515590445,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:37","end":"17:37","startHours":16.615186515590445,"endHours":17.615186515590445,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:37","end":"18:37","startHours":17.615186515590445,"endHours":18.615186515590445,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:37","end":"19:37","startHours":18.615186515590445,"endHours":19.615186515590445,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:37","end":"20:37","startHours":19.615186515590445,"endHours":20.615186515590445,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:37","end":"21:37","startHours":20.615186515590445,"endHours":21.615186515590445,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:37","end":"22:37","startHours":21.615186515590445,"endHours":22.615186515590445,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:37","end":"23:37","startHours":22.615186515590445,"endHours":23.615186515590445,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:37","end":"00:37","startHours":23.615186515590445,"endHours":24.615186515590445,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:37","end":"01:37","startHours":24.615186515590445,"endHours":25.615186515590445,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:37","end":"02:37","startHours":25.615186515590445,"endHours":26.615186515590445,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:37","end":"03:37","startHours":26.615186515590445,"endHours":27.615186515590445,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:37","end":"04:37","startHours":27.615186515590445,"endHours":28.615186515590445,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:37","end":"05:37","startHours":28.615186515590445,"endHours":29.615186515590445,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:37","end":"06:37","startHours":29.615186515590445,"endHours":30.615186515590445,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.040408721015247,"eotMinutes":-3.705178323396069,"ayanamsa":24.0067}},"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 Dvādaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"thiruvananthapuram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 1, 2011 CE · Thiruvananthapuram, Kerala · Vidhyamitra","description":"January 1, 2011 CE for Thiruvananthapuram, Kerala: Kṛṣṇa Dvādaśī, sūryodaya 06:37, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thiruvananthapuram/2011-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thiruvananthapuram/2011-01-01","sa":"https://sa.vidhyamitra.com/city/thiruvananthapuram/2011-01-01","hi":"https://hi.vidhyamitra.com/city/thiruvananthapuram/2011-01-01","x-default":"https://vidhyamitra.com/city/thiruvananthapuram/2011-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:17:31.541Z","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":"2026-06-01T01:17:31.541Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:17:31.541Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}