{"id":"vidhyamitra:city-day:howrah:2015-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2015-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-02-13","date_display":"February 13, 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":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457066.770833,"kali_year":5116,"ahargana":1868601.2708,"sun":{"sidereal_longitude":299.9889,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":223.8049,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":283.816,"elapsed_within_tithi_degrees":7.816},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":223.8049,"elapsed_within_degrees":10.4716},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":163.7938},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457066.770833,"ahargana":1868601.2708,"kali_year":5116,"ayanamsa_lahiri":24.0642,"grahas":{"sun":{"sidereal_longitude":299.937138,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":220.34283800000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":3.5102},"mars":{"sidereal_longitude":330.29883799999993,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":277.0923379999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":111.95153799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":326.09823800000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":219.89153799999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":172.5123,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":352.5123,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2015,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457066.770833,"kali_year":5116,"ahargana":1868601.2708,"sun":{"sidereal_longitude":299.9889,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":223.8049,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":283.816,"elapsed_within_tithi_degrees":7.816},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":223.8049,"elapsed_within_degrees":10.4716},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":163.7938},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.51,"elongation":76.184},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.51,"opposition_distance":103.816}},"eclipse_window_40days":[]},"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"06:11","sunsetLocal":"17:32","solarNoonLocal":"11:52","dayLengthHours":11.358545471771313,"dayLengthDisplay":"11 Hours 21 Mins 31 Secs","nightLengthDisplay":"12 Hours 38 Mins 29 Secs","moonriseLocal":"01:07","moonsetLocal":"11:59","rahuKala":{"name":"Rāhu Kāla","start":"10:26","end":"11:52","startHours":10.439267237038953,"endHours":11.859085421010366,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:42","end":"16:07","startHours":14.698721788953195,"endHours":16.11853997292461,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:36","end":"09:01","startHours":7.599630869096125,"endHours":9.01944905306754,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:13","startHours":8.83013996187135,"endHours":9.208758144263728,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:57","startHours":6.653085413115182,"endHours":6.955979959029084,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:29","end":"12:14","startHours":11.48046723861799,"endHours":12.237703603402746,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:40","end":"05:25","startHours":4.665339955555202,"endHours":5.422576320339957,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:14","end":"06:11","startHours":5.2332672291437685,"endHours":6.179812685124711,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:45","end":"14:31","startHours":13.752176332972253,"endHours":14.509412697757007,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:20","end":"17:44","startHours":17.338358156896025,"endHours":17.738358156896023,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:32","end":"18:01","startHours":17.538358156896024,"endHours":18.011630884886497,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:17","end":"19:02","startHours":17.288358156896024,"endHours":19.038358156896024,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:29","end":"00:14","startHours":23.480467238617994,"endHours":24.237703603402746,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:11","end":"07:36","startHours":6.179812685124711,"endHours":7.599630869096125,"quality":"neutral"},{"name":"Labha","start":"07:36","end":"09:01","startHours":7.599630869096125,"endHours":9.01944905306754,"quality":"auspicious"},{"name":"Amṛta","start":"09:01","end":"10:26","startHours":9.01944905306754,"endHours":10.439267237038953,"quality":"auspicious"},{"name":"Kāla","start":"10:26","end":"11:52","startHours":10.439267237038953,"endHours":11.859085421010366,"quality":"inauspicious"},{"name":"Śubha","start":"11:52","end":"13:17","startHours":11.859085421010366,"endHours":13.278903604981782,"quality":"auspicious"},{"name":"Roga","start":"13:17","end":"14:42","startHours":13.278903604981782,"endHours":14.698721788953195,"quality":"inauspicious"},{"name":"Udveg","start":"14:42","end":"16:07","startHours":14.698721788953195,"endHours":16.11853997292461,"quality":"inauspicious"},{"name":"Chala","start":"16:07","end":"17:32","startHours":16.11853997292461,"endHours":17.538358156896024,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:32","end":"19:07","startHours":17.538358156896024,"endHours":19.11853997292461,"quality":"inauspicious"},{"name":"Udveg","start":"19:07","end":"20:42","startHours":19.11853997292461,"endHours":20.698721788953197,"quality":"inauspicious"},{"name":"Chala","start":"20:42","end":"22:17","startHours":20.698721788953197,"endHours":22.27890360498178,"quality":"neutral"},{"name":"Labha","start":"22:17","end":"23:52","startHours":22.27890360498178,"endHours":23.859085421010366,"quality":"auspicious"},{"name":"Amṛta","start":"23:52","end":"01:26","startHours":23.859085421010366,"endHours":25.439267237038955,"quality":"auspicious"},{"name":"Kāla","start":"01:26","end":"03:01","startHours":25.439267237038955,"endHours":27.01944905306754,"quality":"inauspicious"},{"name":"Śubha","start":"03:01","end":"04:36","startHours":27.01944905306754,"endHours":28.599630869096124,"quality":"auspicious"},{"name":"Roga","start":"04:36","end":"06:11","startHours":28.599630869096124,"endHours":30.17981268512471,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:11","end":"07:11","startHours":6.179812685124711,"endHours":7.179812685124711,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:11","end":"08:11","startHours":7.179812685124711,"endHours":8.17981268512471,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:11","end":"09:11","startHours":8.17981268512471,"endHours":9.17981268512471,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:11","end":"10:11","startHours":9.17981268512471,"endHours":10.17981268512471,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:11","end":"11:11","startHours":10.17981268512471,"endHours":11.17981268512471,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:11","end":"12:11","startHours":11.17981268512471,"endHours":12.17981268512471,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:11","end":"13:11","startHours":12.17981268512471,"endHours":13.17981268512471,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:11","end":"14:11","startHours":13.17981268512471,"endHours":14.17981268512471,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:11","end":"15:11","startHours":14.17981268512471,"endHours":15.17981268512471,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:11","end":"16:11","startHours":15.17981268512471,"endHours":16.17981268512471,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:11","end":"17:11","startHours":16.17981268512471,"endHours":17.17981268512471,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:11","end":"18:11","startHours":17.17981268512471,"endHours":18.17981268512471,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:11","end":"19:11","startHours":18.17981268512471,"endHours":19.17981268512471,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:11","end":"20:11","startHours":19.17981268512471,"endHours":20.17981268512471,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:11","end":"21:11","startHours":20.17981268512471,"endHours":21.17981268512471,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:11","end":"22:11","startHours":21.17981268512471,"endHours":22.17981268512471,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:11","end":"23:11","startHours":22.17981268512471,"endHours":23.17981268512471,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:11","end":"00:11","startHours":23.17981268512471,"endHours":24.17981268512471,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:11","end":"01:11","startHours":24.17981268512471,"endHours":25.17981268512471,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:11","end":"02:11","startHours":25.17981268512471,"endHours":26.17981268512471,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:11","end":"03:11","startHours":26.17981268512471,"endHours":27.17981268512471,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:11","end":"04:11","startHours":27.17981268512471,"endHours":28.17981268512471,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:11","end":"05:11","startHours":28.17981268512471,"endHours":29.17981268512471,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:11","end":"06:11","startHours":29.17981268512471,"endHours":30.17981268512471,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.51935119595675,"eotMinutes":-14.599525260622107,"ayanamsa":24.0642}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Navamī · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"howrah"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 13, 2015 CE · Howrah, West Bengal · Vidhyamitra","description":"February 13, 2015 CE for Howrah, West Bengal: Kṛṣṇa Navamī, sūryodaya 06:11, sūryāsta 17:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2015-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2015-02-13","sa":"https://sa.vidhyamitra.com/city/howrah/2015-02-13","hi":"https://hi.vidhyamitra.com/city/howrah/2015-02-13","x-default":"https://vidhyamitra.com/city/howrah/2015-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T12:47:31.553Z","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":"2026-05-15T12:47:31.553Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T12:47:31.553Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}