{"id":"vidhyamitra:city-day:colombo:2015-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2015-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-01-06","date_display":"January 6, 2015 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":2015,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457028.770833,"kali_year":5116,"ahargana":1868563.2708,"sun":{"sidereal_longitude":261.089,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":92.6442,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":191.5552,"elapsed_within_tithi_degrees":11.5552},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.6442,"elapsed_within_degrees":12.6442},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.7332},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2015,"month":1,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457028.770833,"ahargana":1868563.2708,"kali_year":5116,"ayanamsa_lahiri":24.0627,"grahas":{"sun":{"sidereal_longitude":261.31719,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":90.77548999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":-4.4548},"mars":{"sidereal_longitude":300.6887899999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":277.32869000000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":116.51128999999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":278.78489,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":217.05358999999999,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":174.5258,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":354.5258,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2015,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457028.770833,"kali_year":5116,"ahargana":1868563.2708,"sun":{"sidereal_longitude":261.089,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":92.6442,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":191.5552,"elapsed_within_tithi_degrees":11.5552},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.6442,"elapsed_within_degrees":12.6442},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":353.7332},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.455,"elongation":168.445},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.455,"opposition_distance":11.555}},"eclipse_window_40days":[]},"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"tier2":{"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"sunriseLocal":"06:24","sunsetLocal":"18:09","solarNoonLocal":"12:16","dayLengthHours":11.735691602212347,"dayLengthDisplay":"11 Hours 44 Mins 08 Secs","nightLengthDisplay":"12 Hours 15 Mins 52 Secs","moonriseLocal":"18:41","moonsetLocal":"07:08","rahuKala":{"name":"Rāhu Kāla","start":"15:12","end":"16:40","startHours":15.207769919002649,"endHours":16.674731369279193,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:20","end":"10:48","startHours":9.339924117896476,"endHours":10.80688556817302,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:16","end":"13:44","startHours":12.273847018449562,"endHours":13.740808468726106,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:09","end":"09:32","startHours":9.144329257859603,"endHours":9.535518977933348,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:54","end":"07:12","startHours":6.8949883674355705,"endHours":7.207940143494566,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:40","startHours":11.882657298375818,"endHours":12.665036738523309,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:50","end":"05:37","startHours":4.84124233704841,"endHours":5.6236217771959,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:26","end":"06:24","startHours":5.428026917159027,"endHours":6.406001217343389,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:01","startHours":14.229795618818287,"endHours":15.012175058965777,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.941692819555737,"endHours":18.341692819555735,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:38","startHours":18.141692819555736,"endHours":18.630679969647918,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.891692819555736,"endHours":19.641692819555736,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:40","startHours":23.882657298375822,"endHours":24.66503673852331,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:24","end":"07:52","startHours":6.406001217343389,"endHours":7.872962667619933,"quality":"inauspicious"},{"name":"Udveg","start":"07:52","end":"09:20","startHours":7.872962667619933,"endHours":9.339924117896476,"quality":"inauspicious"},{"name":"Chala","start":"09:20","end":"10:48","startHours":9.339924117896476,"endHours":10.80688556817302,"quality":"neutral"},{"name":"Labha","start":"10:48","end":"12:16","startHours":10.80688556817302,"endHours":12.273847018449562,"quality":"auspicious"},{"name":"Amṛta","start":"12:16","end":"13:44","startHours":12.273847018449562,"endHours":13.740808468726106,"quality":"auspicious"},{"name":"Kāla","start":"13:44","end":"15:12","startHours":13.740808468726106,"endHours":15.207769919002649,"quality":"inauspicious"},{"name":"Śubha","start":"15:12","end":"16:40","startHours":15.207769919002649,"endHours":16.674731369279193,"quality":"auspicious"},{"name":"Roga","start":"16:40","end":"18:09","startHours":16.674731369279193,"endHours":18.141692819555736,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:09","end":"19:40","startHours":18.141692819555736,"endHours":19.674731369279193,"quality":"inauspicious"},{"name":"Śubha","start":"19:40","end":"21:12","startHours":19.674731369279193,"endHours":21.20776991900265,"quality":"auspicious"},{"name":"Roga","start":"21:12","end":"22:44","startHours":21.20776991900265,"endHours":22.740808468726108,"quality":"inauspicious"},{"name":"Udveg","start":"22:44","end":"00:16","startHours":22.740808468726108,"endHours":24.273847018449562,"quality":"inauspicious"},{"name":"Chala","start":"00:16","end":"01:48","startHours":24.273847018449562,"endHours":25.80688556817302,"quality":"neutral"},{"name":"Labha","start":"01:48","end":"03:20","startHours":25.80688556817302,"endHours":27.339924117896476,"quality":"auspicious"},{"name":"Amṛta","start":"03:20","end":"04:52","startHours":27.339924117896476,"endHours":28.87296266761993,"quality":"auspicious"},{"name":"Kāla","start":"04:52","end":"06:24","startHours":28.87296266761993,"endHours":30.406001217343388,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.406001217343389,"endHours":7.406001217343389,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.406001217343389,"endHours":8.40600121734339,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.40600121734339,"endHours":9.40600121734339,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.40600121734339,"endHours":10.40600121734339,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.40600121734339,"endHours":11.40600121734339,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.40600121734339,"endHours":12.40600121734339,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.40600121734339,"endHours":13.40600121734339,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.40600121734339,"endHours":14.40600121734339,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.40600121734339,"endHours":15.40600121734339,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.40600121734339,"endHours":16.406001217343388,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.406001217343388,"endHours":17.406001217343388,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.406001217343388,"endHours":18.406001217343388,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.406001217343388,"endHours":19.406001217343388,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.406001217343388,"endHours":20.406001217343388,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.406001217343388,"endHours":21.406001217343388,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.406001217343388,"endHours":22.406001217343388,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.406001217343388,"endHours":23.406001217343388,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.406001217343388,"endHours":24.406001217343388,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.406001217343388,"endHours":25.406001217343388,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.406001217343388,"endHours":26.406001217343388,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.406001217343388,"endHours":27.406001217343388,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.406001217343388,"endHours":28.406001217343388,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.406001217343388,"endHours":29.406001217343388,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.406001217343388,"endHours":30.406001217343388,"planetary_lord":"Saturn"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Lumba","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":-22.549972825914374,"eotMinutes":-5.875621106973772,"ayanamsa":24.0627}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Pratipada · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"colombo"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 6, 2015 CE · Colombo, Sri Lanka · Vidhyamitra","description":"January 6, 2015 CE for Colombo, Sri Lanka: Kṛṣṇa Pratipada, sūryodaya 06:24, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2015-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2015-01-06","sa":"https://sa.vidhyamitra.com/city/colombo/2015-01-06","hi":"https://hi.vidhyamitra.com/city/colombo/2015-01-06","x-default":"https://vidhyamitra.com/city/colombo/2015-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T16:30:22.923Z","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":"2026-05-15T16:30:22.923Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T16:30:22.923Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}