{"id":"vidhyamitra:city-day:colombo:2017-09-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2017-09-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-09-06","date_display":"September 6, 2017 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":2017,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458002.770833,"kali_year":5119,"ahargana":1869537.2708,"sun":{"sidereal_longitude":138.8081,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":315.0501,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.242,"elapsed_within_tithi_degrees":8.242},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":315.0501,"elapsed_within_degrees":8.3834},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":93.8582},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2017,"month":9,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458002.770833,"ahargana":1869537.2708,"kali_year":5119,"ayanamsa_lahiri":24.1,"grahas":{"sun":{"sidereal_longitude":139.55427600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":316.34637599999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false,"latitude":-0.9448},"mars":{"sidereal_longitude":126.05237599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":124.17657600000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":178.52627600000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":108.67447600000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":237.03547600000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":122.9185,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.9185,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2017,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458002.770833,"kali_year":5119,"ahargana":1869537.2708,"sun":{"sidereal_longitude":138.8081,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":315.0501,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":176.242,"elapsed_within_tithi_degrees":8.242},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":315.0501,"elapsed_within_degrees":8.3834},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":93.8582},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.945,"elongation":176.242},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.945,"opposition_distance":3.758}},"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":"06:02","sunsetLocal":"18:15","solarNoonLocal":"12:08","dayLengthHours":12.217164477049796,"dayLengthDisplay":"12 Hours 13 Mins 02 Secs","nightLengthDisplay":"11 Hours 46 Mins 58 Secs","moonriseLocal":"17:57","moonsetLocal":"05:54","rahuKala":{"name":"Rāhu Kāla","start":"12:08","end":"13:40","startHours":12.139236538082656,"endHours":13.666382097713882,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:33","end":"09:05","startHours":7.557799859188984,"endHours":9.084945418820208,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:37","end":"12:08","startHours":10.612090978451434,"endHours":12.139236538082656,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:17","startHours":8.881326010869378,"endHours":9.288564826771038,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:52","startHours":6.539702819434834,"endHours":6.865493872156161,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:33","startHours":11.731997722180997,"endHours":12.546475353984318,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:24","end":"05:13","startHours":4.40169903595112,"endHours":5.216176667754439,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:02","startHours":5.01255725980361,"endHours":6.030654299557759,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:59","startHours":14.175430617590955,"endHours":14.989908249394274,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.047818776607556,"endHours":18.447818776607555,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:45","startHours":18.247818776607556,"endHours":18.756867296484632,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":17.997818776607556,"endHours":19.747818776607556,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:33","startHours":23.731997722180996,"endHours":24.546475353984317,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:02","end":"07:33","startHours":6.030654299557759,"endHours":7.557799859188984,"quality":"auspicious"},{"name":"Amṛta","start":"07:33","end":"09:05","startHours":7.557799859188984,"endHours":9.084945418820208,"quality":"auspicious"},{"name":"Kāla","start":"09:05","end":"10:37","startHours":9.084945418820208,"endHours":10.612090978451434,"quality":"inauspicious"},{"name":"Śubha","start":"10:37","end":"12:08","startHours":10.612090978451434,"endHours":12.139236538082656,"quality":"auspicious"},{"name":"Roga","start":"12:08","end":"13:40","startHours":12.139236538082656,"endHours":13.666382097713882,"quality":"inauspicious"},{"name":"Udveg","start":"13:40","end":"15:12","startHours":13.666382097713882,"endHours":15.193527657345108,"quality":"inauspicious"},{"name":"Chala","start":"15:12","end":"16:43","startHours":15.193527657345108,"endHours":16.72067321697633,"quality":"neutral"},{"name":"Labha","start":"16:43","end":"18:15","startHours":16.72067321697633,"endHours":18.247818776607556,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:15","end":"19:43","startHours":18.247818776607556,"endHours":19.72067321697633,"quality":"inauspicious"},{"name":"Chala","start":"19:43","end":"21:12","startHours":19.72067321697633,"endHours":21.193527657345108,"quality":"neutral"},{"name":"Labha","start":"21:12","end":"22:40","startHours":21.193527657345108,"endHours":22.666382097713882,"quality":"auspicious"},{"name":"Amṛta","start":"22:40","end":"00:08","startHours":22.666382097713882,"endHours":24.139236538082656,"quality":"auspicious"},{"name":"Kāla","start":"00:08","end":"01:37","startHours":24.139236538082656,"endHours":25.612090978451434,"quality":"inauspicious"},{"name":"Śubha","start":"01:37","end":"03:05","startHours":25.612090978451434,"endHours":27.084945418820208,"quality":"auspicious"},{"name":"Roga","start":"03:05","end":"04:33","startHours":27.084945418820208,"endHours":28.557799859188982,"quality":"inauspicious"},{"name":"Udveg","start":"04:33","end":"06:02","startHours":28.557799859188982,"endHours":30.03065429955776,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.030654299557759,"endHours":7.030654299557759,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.030654299557759,"endHours":8.03065429955776,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.03065429955776,"endHours":9.03065429955776,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.03065429955776,"endHours":10.03065429955776,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.03065429955776,"endHours":11.03065429955776,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.03065429955776,"endHours":12.03065429955776,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.03065429955776,"endHours":13.03065429955776,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.03065429955776,"endHours":14.03065429955776,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.03065429955776,"endHours":15.03065429955776,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.03065429955776,"endHours":16.03065429955776,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.03065429955776,"endHours":17.03065429955776,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.03065429955776,"endHours":18.03065429955776,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.03065429955776,"endHours":19.03065429955776,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.03065429955776,"endHours":20.03065429955776,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.03065429955776,"endHours":21.03065429955776,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.03065429955776,"endHours":22.03065429955776,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.03065429955776,"endHours":23.03065429955776,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.03065429955776,"endHours":24.03065429955776,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.03065429955776,"endHours":25.03065429955776,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.03065429955776,"endHours":26.03065429955776,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.03065429955776,"endHours":27.03065429955776,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.03065429955776,"endHours":28.03065429955776,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.03065429955776,"endHours":29.03065429955776,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.03065429955776,"endHours":30.03065429955776,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":6.426864481108787,"eotMinutes":2.2010077150405363,"ayanamsa":24.1}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Pūrṇimā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","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 September 6, 2017 CE · Colombo, Sri Lanka · Vidhyamitra","description":"September 6, 2017 CE for Colombo, Sri Lanka: Śukla Pūrṇimā, sūryodaya 06:02, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2017-09-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2017-09-06","sa":"https://sa.vidhyamitra.com/city/colombo/2017-09-06","hi":"https://hi.vidhyamitra.com/city/colombo/2017-09-06","x-default":"https://vidhyamitra.com/city/colombo/2017-09-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:06:45.305Z","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":"2026-05-15T13:06:45.305Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:06:45.305Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}