{"id":"vidhyamitra:city-day:howrah:1979-07-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/1979-07-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-07-13","date_display":"July 13, 1979 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":1979,"month":7,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444067.770833,"kali_year":5081,"ahargana":1855602.2708,"sun":{"sidereal_longitude":86.1472,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":307.9711,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":221.8239,"elapsed_within_tithi_degrees":5.8239},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.9711,"elapsed_within_degrees":1.3045},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.1184},"karana":{"half_tithi_index":36,"name":"Bava"},"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":1979,"month":7,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444067.770833,"ahargana":1855602.2708,"kali_year":5081,"ayanamsa_lahiri":23.567,"grahas":{"sun":{"sidereal_longitude":86.51199500000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"moon":{"sidereal_longitude":311.03749500000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":1.0335},"mars":{"sidereal_longitude":48.63899500000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":110.32089500000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":109.43379499999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":74.89919499999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":136.629295,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":141.2619,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.2619,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"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":1979,"month":7,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444067.770833,"kali_year":5081,"ahargana":1855602.2708,"sun":{"sidereal_longitude":86.1472,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":307.9711,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":221.8239,"elapsed_within_tithi_degrees":5.8239},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":307.9711,"elapsed_within_degrees":1.3045},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":34.1184},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.034,"elongation":138.176},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.034,"opposition_distance":41.824}},"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":"05:00","sunsetLocal":"18:25","solarNoonLocal":"11:42","dayLengthHours":13.418172591307856,"dayLengthDisplay":"13 Hours 25 Mins 05 Secs","nightLengthDisplay":"10 Hours 34 Mins 55 Secs","moonriseLocal":"20:54","moonsetLocal":"08:26","rahuKala":{"name":"Rāhu Kāla","start":"10:02","end":"11:42","startHours":10.027845573522528,"endHours":11.70511714743601,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:04","end":"16:44","startHours":15.059660295262974,"endHours":16.73693186917646,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:40","end":"08:21","startHours":6.673302425695565,"endHours":8.350573999609047,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:08","end":"08:34","startHours":8.126937789753915,"endHours":8.574210209464177,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:33","end":"05:55","startHours":5.55512137641991,"endHours":5.9129393121881195,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:15","end":"12:09","startHours":11.25784472772575,"endHours":12.152389567146272,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:12","end":"04:06","startHours":3.206941172941035,"endHours":4.101486012361558,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:53","end":"05:00","startHours":3.877849802506428,"endHours":4.996030851782082,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:50","startHours":13.94147924598732,"endHours":14.836024085407844,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:13","end":"18:37","startHours":18.21420344308994,"endHours":18.614203443089938,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:25","end":"18:58","startHours":18.41420344308994,"endHours":18.973293967727766,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:10","end":"19:55","startHours":18.16420344308994,"endHours":19.91420344308994,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:15","end":"00:09","startHours":23.25784472772575,"endHours":24.152389567146276,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:00","end":"06:40","startHours":4.996030851782082,"endHours":6.673302425695565,"quality":"neutral"},{"name":"Labha","start":"06:40","end":"08:21","startHours":6.673302425695565,"endHours":8.350573999609047,"quality":"auspicious"},{"name":"Amṛta","start":"08:21","end":"10:02","startHours":8.350573999609047,"endHours":10.027845573522528,"quality":"auspicious"},{"name":"Kāla","start":"10:02","end":"11:42","startHours":10.027845573522528,"endHours":11.70511714743601,"quality":"inauspicious"},{"name":"Śubha","start":"11:42","end":"13:23","startHours":11.70511714743601,"endHours":13.382388721349493,"quality":"auspicious"},{"name":"Roga","start":"13:23","end":"15:04","startHours":13.382388721349493,"endHours":15.059660295262974,"quality":"inauspicious"},{"name":"Udveg","start":"15:04","end":"16:44","startHours":15.059660295262974,"endHours":16.73693186917646,"quality":"inauspicious"},{"name":"Chala","start":"16:44","end":"18:25","startHours":16.73693186917646,"endHours":18.41420344308994,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:25","end":"19:44","startHours":18.41420344308994,"endHours":19.736931869176455,"quality":"inauspicious"},{"name":"Udveg","start":"19:44","end":"21:04","startHours":19.736931869176455,"endHours":21.059660295262976,"quality":"inauspicious"},{"name":"Chala","start":"21:04","end":"22:23","startHours":21.059660295262976,"endHours":22.382388721349493,"quality":"neutral"},{"name":"Labha","start":"22:23","end":"23:42","startHours":22.382388721349493,"endHours":23.70511714743601,"quality":"auspicious"},{"name":"Amṛta","start":"23:42","end":"01:02","startHours":23.70511714743601,"endHours":25.027845573522526,"quality":"auspicious"},{"name":"Kāla","start":"01:02","end":"02:21","startHours":25.027845573522526,"endHours":26.350573999609047,"quality":"inauspicious"},{"name":"Śubha","start":"02:21","end":"03:40","startHours":26.350573999609047,"endHours":27.673302425695564,"quality":"auspicious"},{"name":"Roga","start":"03:40","end":"05:00","startHours":27.673302425695564,"endHours":28.99603085178208,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:00","end":"06:00","startHours":4.996030851782082,"endHours":5.996030851782082,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:00","end":"07:00","startHours":5.996030851782082,"endHours":6.996030851782082,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:00","end":"08:00","startHours":6.996030851782082,"endHours":7.996030851782082,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:00","end":"09:00","startHours":7.996030851782082,"endHours":8.996030851782082,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:00","end":"10:00","startHours":8.996030851782082,"endHours":9.996030851782082,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:00","end":"11:00","startHours":9.996030851782082,"endHours":10.996030851782082,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:00","end":"12:00","startHours":10.996030851782082,"endHours":11.996030851782082,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:00","end":"13:00","startHours":11.996030851782082,"endHours":12.996030851782082,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:00","end":"14:00","startHours":12.996030851782082,"endHours":13.996030851782082,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:00","end":"15:00","startHours":13.996030851782082,"endHours":14.996030851782082,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:00","end":"16:00","startHours":14.996030851782082,"endHours":15.996030851782082,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:00","end":"17:00","startHours":15.996030851782082,"endHours":16.99603085178208,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:00","end":"18:00","startHours":16.99603085178208,"endHours":17.99603085178208,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:00","end":"19:00","startHours":17.99603085178208,"endHours":18.99603085178208,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:00","end":"20:00","startHours":18.99603085178208,"endHours":19.99603085178208,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:00","end":"21:00","startHours":19.99603085178208,"endHours":20.99603085178208,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:00","end":"22:00","startHours":20.99603085178208,"endHours":21.99603085178208,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:00","end":"23:00","startHours":21.99603085178208,"endHours":22.99603085178208,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:00","end":"00:00","startHours":22.99603085178208,"endHours":23.99603085178208,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:00","end":"01:00","startHours":23.99603085178208,"endHours":24.99603085178208,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:00","end":"02:00","startHours":24.99603085178208,"endHours":25.99603085178208,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:00","end":"03:00","startHours":25.99603085178208,"endHours":26.99603085178208,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:00","end":"04:00","startHours":26.99603085178208,"endHours":27.99603085178208,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:00","end":"05:00","startHours":27.99603085178208,"endHours":28.99603085178208,"planetary_lord":"Mars"}],"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":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Utpāta","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":21.93523821443046,"eotMinutes":-5.361428846160681,"ayanamsa":23.567}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","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":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Caturthī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 July 13, 1979 CE · Howrah, West Bengal · Vidhyamitra","description":"July 13, 1979 CE for Howrah, West Bengal: Kṛṣṇa Caturthī, sūryodaya 05:00, sūryāsta 18:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/1979-07-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/1979-07-13","sa":"https://sa.vidhyamitra.com/city/howrah/1979-07-13","hi":"https://hi.vidhyamitra.com/city/howrah/1979-07-13","x-default":"https://vidhyamitra.com/city/howrah/1979-07-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T17:05:09.223Z","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":"2026-06-02T17:05:09.223Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T17:05:09.223Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}