{"id":"vidhyamitra:city-day:colombo:1997-07-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/1997-07-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1997-07-08","date_display":"July 8, 1997 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":1997,"month":7,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450637.770833,"kali_year":5099,"ahargana":1862172.2708,"sun":{"sidereal_longitude":81.7377,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":121.6361,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.8984,"elapsed_within_tithi_degrees":3.8984},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6361,"elapsed_within_degrees":1.6361},"yoga":{"number":16,"name":"Siddhi","sum_longitude":203.3738},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":1997,"month":7,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450637.770833,"ahargana":1862172.2708,"kali_year":5099,"ayanamsa_lahiri":23.8183,"grahas":{"sun":{"sidereal_longitude":82.11477300000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"moon":{"sidereal_longitude":119.050973,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":-2.3505},"mars":{"sidereal_longitude":165.07737299999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":95.87877300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":296.929673,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":107.47597300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":355.997273,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":153.1517,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":333.1517,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"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":1997,"month":7,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450637.770833,"kali_year":5099,"ahargana":1862172.2708,"sun":{"sidereal_longitude":81.7377,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":121.6361,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.8984,"elapsed_within_tithi_degrees":3.8984},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.6361,"elapsed_within_degrees":1.6361},"yoga":{"number":16,"name":"Siddhi","sum_longitude":203.3738},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.351,"elongation":39.898},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.351,"opposition_distance":140.102}},"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":"06:00","sunsetLocal":"18:30","solarNoonLocal":"12:15","dayLengthHours":12.505630713324301,"dayLengthDisplay":"12 Hours 30 Mins 20 Secs","nightLengthDisplay":"11 Hours 29 Mins 40 Secs","moonriseLocal":"08:34","moonsetLocal":"20:52","rahuKala":{"name":"Rāhu Kāla","start":"15:23","end":"16:57","startHours":15.380300597891932,"endHours":16.943504437057467,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:08","end":"10:41","startHours":9.127485241229781,"endHours":10.690689080395318,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:15","end":"13:49","startHours":12.253892919560855,"endHours":13.817096758726393,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:20","startHours":8.919058062674376,"endHours":9.335912419785185,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:51","startHours":6.522145509287218,"endHours":6.8556289949758655,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:40","startHours":11.837038562450045,"endHours":12.670747276671664,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:20","end":"05:10","startHours":4.333660134455465,"endHours":5.167368848677085,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:58","end":"06:00","startHours":4.95894167012168,"endHours":6.001077562898705,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:10","startHours":14.338164705114906,"endHours":15.171873419336526,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:18","end":"18:42","startHours":18.306708276223006,"endHours":18.706708276223004,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:30","end":"19:02","startHours":18.506708276223005,"endHours":19.027776222611518,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:15","end":"20:00","startHours":18.256708276223005,"endHours":20.006708276223005,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:40","startHours":23.837038562450044,"endHours":24.670747276671666,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:00","end":"07:34","startHours":6.001077562898705,"endHours":7.564281402064243,"quality":"inauspicious"},{"name":"Udveg","start":"07:34","end":"09:08","startHours":7.564281402064243,"endHours":9.127485241229781,"quality":"inauspicious"},{"name":"Chala","start":"09:08","end":"10:41","startHours":9.127485241229781,"endHours":10.690689080395318,"quality":"neutral"},{"name":"Labha","start":"10:41","end":"12:15","startHours":10.690689080395318,"endHours":12.253892919560855,"quality":"auspicious"},{"name":"Amṛta","start":"12:15","end":"13:49","startHours":12.253892919560855,"endHours":13.817096758726393,"quality":"auspicious"},{"name":"Kāla","start":"13:49","end":"15:23","startHours":13.817096758726393,"endHours":15.380300597891932,"quality":"inauspicious"},{"name":"Śubha","start":"15:23","end":"16:57","startHours":15.380300597891932,"endHours":16.943504437057467,"quality":"auspicious"},{"name":"Roga","start":"16:57","end":"18:30","startHours":16.943504437057467,"endHours":18.506708276223005,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:30","end":"19:57","startHours":18.506708276223005,"endHours":19.943504437057467,"quality":"inauspicious"},{"name":"Śubha","start":"19:57","end":"21:23","startHours":19.943504437057467,"endHours":21.38030059789193,"quality":"auspicious"},{"name":"Roga","start":"21:23","end":"22:49","startHours":21.38030059789193,"endHours":22.817096758726393,"quality":"inauspicious"},{"name":"Udveg","start":"22:49","end":"00:15","startHours":22.817096758726393,"endHours":24.253892919560855,"quality":"inauspicious"},{"name":"Chala","start":"00:15","end":"01:41","startHours":24.253892919560855,"endHours":25.690689080395316,"quality":"neutral"},{"name":"Labha","start":"01:41","end":"03:08","startHours":25.690689080395316,"endHours":27.127485241229778,"quality":"auspicious"},{"name":"Amṛta","start":"03:08","end":"04:34","startHours":27.127485241229778,"endHours":28.564281402064243,"quality":"auspicious"},{"name":"Kāla","start":"04:34","end":"06:00","startHours":28.564281402064243,"endHours":30.001077562898704,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:00","end":"07:00","startHours":6.001077562898705,"endHours":7.001077562898705,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:00","end":"08:00","startHours":7.001077562898705,"endHours":8.001077562898704,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:00","end":"09:00","startHours":8.001077562898704,"endHours":9.001077562898704,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:00","end":"10:00","startHours":9.001077562898704,"endHours":10.001077562898704,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:00","end":"11:00","startHours":10.001077562898704,"endHours":11.001077562898704,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:00","end":"12:00","startHours":11.001077562898704,"endHours":12.001077562898704,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:00","end":"13:00","startHours":12.001077562898704,"endHours":13.001077562898704,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:00","end":"14:00","startHours":13.001077562898704,"endHours":14.001077562898704,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:00","end":"15:00","startHours":14.001077562898704,"endHours":15.001077562898704,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:00","end":"16:00","startHours":15.001077562898704,"endHours":16.001077562898704,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:00","end":"17:00","startHours":16.001077562898704,"endHours":17.001077562898704,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:00","end":"18:00","startHours":17.001077562898704,"endHours":18.001077562898704,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:00","end":"19:00","startHours":18.001077562898704,"endHours":19.001077562898704,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:00","end":"20:00","startHours":19.001077562898704,"endHours":20.001077562898704,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:00","end":"21:00","startHours":20.001077562898704,"endHours":21.001077562898704,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:00","end":"22:00","startHours":21.001077562898704,"endHours":22.001077562898704,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:00","end":"23:00","startHours":22.001077562898704,"endHours":23.001077562898704,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:00","end":"00:00","startHours":23.001077562898704,"endHours":24.001077562898704,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:00","end":"01:00","startHours":24.001077562898704,"endHours":25.001077562898704,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:00","end":"02:00","startHours":25.001077562898704,"endHours":26.001077562898704,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:00","end":"03:00","startHours":26.001077562898704,"endHours":27.001077562898704,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:00","end":"04:00","startHours":27.001077562898704,"endHours":28.001077562898704,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:00","end":"05:00","startHours":28.001077562898704,"endHours":29.001077562898704,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:00","end":"06:00","startHours":29.001077562898704,"endHours":30.001077562898704,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.485696338369387,"eotMinutes":-4.678375173651213,"ayanamsa":23.8183}},"calendars":{"vikram_samvat":2054,"vikram_samvatsara":"Vikṛti","saka_samvat":1919,"saka_samvatsara":"Īśvara","bengali_samvat":1404,"malayalam_era":1173,"nanakshahi_year":528,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Caturthī · Vikram 2054 Vikṛti · Śaka 1919 Īśvara"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":[]},"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 July 8, 1997 CE · Colombo, Sri Lanka · Vidhyamitra","description":"July 8, 1997 CE for Colombo, Sri Lanka: Śukla Caturthī, sūryodaya 06:00, sūryāsta 18:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/1997-07-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/1997-07-08","sa":"https://sa.vidhyamitra.com/city/colombo/1997-07-08","hi":"https://hi.vidhyamitra.com/city/colombo/1997-07-08","x-default":"https://vidhyamitra.com/city/colombo/1997-07-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T15:32:35.913Z","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":"2026-06-01T15:32:35.913Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T15:32:35.913Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}