{"id":"vidhyamitra:city-day:colombo:2011-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2011-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-27","date_display":"January 27, 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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455588.770833,"kali_year":5112,"ahargana":1867123.2708,"sun":{"sidereal_longitude":282.6792,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.52,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.8408,"elapsed_within_tithi_degrees":9.8408},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.52,"elapsed_within_degrees":9.8533},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.1992},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455588.770833,"ahargana":1867123.2708,"kali_year":5112,"ayanamsa_lahiri":24.0077,"grahas":{"sun":{"sidereal_longitude":282.725409,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":199.09810900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false,"latitude":-3.6533},"mars":{"sidereal_longitude":284.54900899999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":263.98380899999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":336.832709,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":236.57930899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":172.97120900000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":250.8239,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":70.8239,"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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455588.770833,"kali_year":5112,"ahargana":1867123.2708,"sun":{"sidereal_longitude":282.6792,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":196.52,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.8408,"elapsed_within_tithi_degrees":9.8408},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":196.52,"elapsed_within_degrees":9.8533},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.1992},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.653,"elongation":86.159},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.653,"opposition_distance":93.841}},"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":"06:29","sunsetLocal":"18:17","solarNoonLocal":"12:23","dayLengthHours":11.805884994192915,"dayLengthDisplay":"11 Hours 48 Mins 21 Secs","nightLengthDisplay":"12 Hours 11 Mins 39 Secs","moonriseLocal":"00:54","moonsetLocal":"12:43","rahuKala":{"name":"Rāhu Kāla","start":"13:52","end":"15:20","startHours":13.864402382722101,"endHours":15.340138006996217,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:29","end":"07:58","startHours":6.485724261351529,"endHours":7.9614598856256436,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:26","end":"10:55","startHours":9.437195509899759,"endHours":10.912931134173872,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:38","startHours":9.240430759996542,"endHours":9.633960259802974,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:59","end":"07:18","startHours":6.977636136109568,"endHours":7.292459735954712,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:47","startHours":11.995137258641556,"endHours":12.782196258254416,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:42","startHours":4.911606262125807,"endHours":5.698665261738668,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:29","startHours":5.501900511835453,"endHours":6.485724261351529,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:09","startHours":14.35631425748014,"endHours":15.143373257093002,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.091609255544444,"endHours":18.491609255544443,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:47","startHours":18.291609255544444,"endHours":18.783521130302482,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.041609255544444,"endHours":19.791609255544444,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:47","startHours":23.995137258641556,"endHours":24.782196258254416,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:29","end":"07:58","startHours":6.485724261351529,"endHours":7.9614598856256436,"quality":"auspicious"},{"name":"Roga","start":"07:58","end":"09:26","startHours":7.9614598856256436,"endHours":9.437195509899759,"quality":"inauspicious"},{"name":"Udveg","start":"09:26","end":"10:55","startHours":9.437195509899759,"endHours":10.912931134173872,"quality":"inauspicious"},{"name":"Chala","start":"10:55","end":"12:23","startHours":10.912931134173872,"endHours":12.388666758447986,"quality":"neutral"},{"name":"Labha","start":"12:23","end":"13:52","startHours":12.388666758447986,"endHours":13.864402382722101,"quality":"auspicious"},{"name":"Amṛta","start":"13:52","end":"15:20","startHours":13.864402382722101,"endHours":15.340138006996217,"quality":"auspicious"},{"name":"Kāla","start":"15:20","end":"16:49","startHours":15.340138006996217,"endHours":16.81587363127033,"quality":"inauspicious"},{"name":"Śubha","start":"16:49","end":"18:17","startHours":16.81587363127033,"endHours":18.291609255544444,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:17","end":"19:49","startHours":18.291609255544444,"endHours":19.81587363127033,"quality":"auspicious"},{"name":"Kāla","start":"19:49","end":"21:20","startHours":19.81587363127033,"endHours":21.340138006996213,"quality":"inauspicious"},{"name":"Śubha","start":"21:20","end":"22:52","startHours":21.340138006996213,"endHours":22.8644023827221,"quality":"auspicious"},{"name":"Roga","start":"22:52","end":"00:23","startHours":22.8644023827221,"endHours":24.388666758447986,"quality":"inauspicious"},{"name":"Udveg","start":"00:23","end":"01:55","startHours":24.388666758447986,"endHours":25.91293113417387,"quality":"inauspicious"},{"name":"Chala","start":"01:55","end":"03:26","startHours":25.91293113417387,"endHours":27.43719550989976,"quality":"neutral"},{"name":"Labha","start":"03:26","end":"04:58","startHours":27.43719550989976,"endHours":28.961459885625644,"quality":"auspicious"},{"name":"Amṛta","start":"04:58","end":"06:29","startHours":28.961459885625644,"endHours":30.48572426135153,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.485724261351529,"endHours":7.485724261351529,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.485724261351529,"endHours":8.485724261351528,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.485724261351528,"endHours":9.485724261351528,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.485724261351528,"endHours":10.485724261351528,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.485724261351528,"endHours":11.485724261351528,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.485724261351528,"endHours":12.485724261351528,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.485724261351528,"endHours":13.485724261351528,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.485724261351528,"endHours":14.485724261351528,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.485724261351528,"endHours":15.485724261351528,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.485724261351528,"endHours":16.48572426135153,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.48572426135153,"endHours":17.48572426135153,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.48572426135153,"endHours":18.48572426135153,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.48572426135153,"endHours":19.48572426135153,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.48572426135153,"endHours":20.48572426135153,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.48572426135153,"endHours":21.48572426135153,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.48572426135153,"endHours":22.48572426135153,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.48572426135153,"endHours":23.48572426135153,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.48572426135153,"endHours":24.48572426135153,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.48572426135153,"endHours":25.48572426135153,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.48572426135153,"endHours":26.48572426135153,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.48572426135153,"endHours":27.48572426135153,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.48572426135153,"endHours":28.48572426135153,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.48572426135153,"endHours":29.48572426135153,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.48572426135153,"endHours":30.48572426135153,"planetary_lord":"Moon"}],"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","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.587636717150964,"eotMinutes":-12.76480550687915,"ayanamsa":24.0077}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Aṣṭamī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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":"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 27, 2011 CE · Colombo, Sri Lanka · Vidhyamitra","description":"January 27, 2011 CE for Colombo, Sri Lanka: Kṛṣṇa Aṣṭamī, sūryodaya 06:29, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2011-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2011-01-27","sa":"https://sa.vidhyamitra.com/city/colombo/2011-01-27","hi":"https://hi.vidhyamitra.com/city/colombo/2011-01-27","x-default":"https://vidhyamitra.com/city/colombo/2011-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:21:15.855Z","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":"2026-05-31T12:21:15.855Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:21:15.855Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}