{"id":"vidhyamitra:city-day:howrah:2131-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2131-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-09-01","date_display":"September 1, 2131 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":2131,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499634.770833,"kali_year":5233,"ahargana":1911169.2708,"sun":{"sidereal_longitude":131.5754,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":235.9676,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":104.3922,"elapsed_within_tithi_degrees":8.3922},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":235.9676,"elapsed_within_degrees":9.3009},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.543},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2131,"month":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499634.770833,"ahargana":1911169.2708,"kali_year":5233,"ayanamsa_lahiri":25.6923,"grahas":{"sun":{"sidereal_longitude":132.57282799999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":234.85902799999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":1.6176},"mars":{"sidereal_longitude":15.122327999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":129.79652799999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":59.91202800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":143.963328,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":194.074428,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":77.0548,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":257.0548,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2131,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499634.770833,"kali_year":5233,"ahargana":1911169.2708,"sun":{"sidereal_longitude":131.5754,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":235.9676,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":104.3922,"elapsed_within_tithi_degrees":8.3922},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":235.9676,"elapsed_within_degrees":9.3009},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":7.543},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.618,"elongation":104.392},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.618,"opposition_distance":75.608}},"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":"05:19","sunsetLocal":"17:54","solarNoonLocal":"11:36","dayLengthHours":12.595658692356267,"dayLengthDisplay":"12 Hours 35 Mins 44 Secs","nightLengthDisplay":"11 Hours 24 Mins 16 Secs","moonriseLocal":"13:04","moonsetLocal":"23:48","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"10:02","startHours":8.458911696726378,"endHours":10.033369033270912,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:11","end":"14:45","startHours":13.182283706359978,"endHours":14.756741042904512,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:19","end":"06:53","startHours":5.309997023637311,"endHours":6.884454360181844,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:15","end":"08:40","startHours":8.248984051853773,"endHours":8.668839341598982,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:10","startHours":5.834816135818822,"endHours":6.170700367614989,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:11","end":"12:02","startHours":11.187971080070236,"endHours":12.027681659560654,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:28","startHours":3.630575864656475,"endHours":4.470286444146893,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:19","startHours":4.260358799274289,"endHours":5.309997023637311,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:42","end":"14:33","startHours":13.70710281854149,"endHours":14.546813398031908,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.70565571599358,"endHours":18.105655715993578,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:26","startHours":17.90565571599358,"endHours":18.43047482817509,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.65565571599358,"endHours":19.40565571599358,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:11","end":"00:02","startHours":23.187971080070238,"endHours":24.027681659560653,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:19","end":"06:53","startHours":5.309997023637311,"endHours":6.884454360181844,"quality":"inauspicious"},{"name":"Śubha","start":"06:53","end":"08:28","startHours":6.884454360181844,"endHours":8.458911696726378,"quality":"auspicious"},{"name":"Roga","start":"08:28","end":"10:02","startHours":8.458911696726378,"endHours":10.033369033270912,"quality":"inauspicious"},{"name":"Udveg","start":"10:02","end":"11:36","startHours":10.033369033270912,"endHours":11.607826369815445,"quality":"inauspicious"},{"name":"Chala","start":"11:36","end":"13:11","startHours":11.607826369815445,"endHours":13.182283706359978,"quality":"neutral"},{"name":"Labha","start":"13:11","end":"14:45","startHours":13.182283706359978,"endHours":14.756741042904512,"quality":"auspicious"},{"name":"Amṛta","start":"14:45","end":"16:20","startHours":14.756741042904512,"endHours":16.331198379449045,"quality":"auspicious"},{"name":"Kāla","start":"16:20","end":"17:54","startHours":16.331198379449045,"endHours":17.90565571599358,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:54","end":"19:20","startHours":17.90565571599358,"endHours":19.331198379449045,"quality":"auspicious"},{"name":"Amṛta","start":"19:20","end":"20:45","startHours":19.331198379449045,"endHours":20.756741042904512,"quality":"auspicious"},{"name":"Kāla","start":"20:45","end":"22:11","startHours":20.756741042904512,"endHours":22.18228370635998,"quality":"inauspicious"},{"name":"Śubha","start":"22:11","end":"23:36","startHours":22.18228370635998,"endHours":23.607826369815445,"quality":"auspicious"},{"name":"Roga","start":"23:36","end":"01:02","startHours":23.607826369815445,"endHours":25.033369033270912,"quality":"inauspicious"},{"name":"Udveg","start":"01:02","end":"02:28","startHours":25.033369033270912,"endHours":26.45891169672638,"quality":"inauspicious"},{"name":"Chala","start":"02:28","end":"03:53","startHours":26.45891169672638,"endHours":27.884454360181845,"quality":"neutral"},{"name":"Labha","start":"03:53","end":"05:19","startHours":27.884454360181845,"endHours":29.30999702363731,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:19","end":"06:19","startHours":5.309997023637311,"endHours":6.309997023637311,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:19","end":"07:19","startHours":6.309997023637311,"endHours":7.309997023637311,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:19","end":"08:19","startHours":7.309997023637311,"endHours":8.309997023637312,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:19","end":"09:19","startHours":8.309997023637312,"endHours":9.309997023637312,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:19","end":"10:19","startHours":9.309997023637312,"endHours":10.309997023637312,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:19","end":"11:19","startHours":10.309997023637312,"endHours":11.309997023637312,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:19","end":"12:19","startHours":11.309997023637312,"endHours":12.309997023637312,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:19","end":"13:19","startHours":12.309997023637312,"endHours":13.309997023637312,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:19","end":"14:19","startHours":13.309997023637312,"endHours":14.309997023637312,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:19","end":"15:19","startHours":14.309997023637312,"endHours":15.309997023637312,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:19","end":"16:19","startHours":15.309997023637312,"endHours":16.30999702363731,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:19","end":"17:19","startHours":16.30999702363731,"endHours":17.30999702363731,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:19","end":"18:19","startHours":17.30999702363731,"endHours":18.30999702363731,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:19","end":"19:19","startHours":18.30999702363731,"endHours":19.30999702363731,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:19","end":"20:19","startHours":19.30999702363731,"endHours":20.30999702363731,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:19","end":"21:19","startHours":20.30999702363731,"endHours":21.30999702363731,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:19","end":"22:19","startHours":21.30999702363731,"endHours":22.30999702363731,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:19","end":"23:19","startHours":22.30999702363731,"endHours":23.30999702363731,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:19","end":"00:19","startHours":23.30999702363731,"endHours":24.30999702363731,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:19","end":"01:19","startHours":24.30999702363731,"endHours":25.30999702363731,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:19","end":"02:19","startHours":25.30999702363731,"endHours":26.30999702363731,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:19","end":"03:19","startHours":26.30999702363731,"endHours":27.30999702363731,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:19","end":"04:19","startHours":27.30999702363731,"endHours":28.30999702363731,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:19","end":"05:19","startHours":28.30999702363731,"endHours":29.30999702363731,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.469631260615442,"eotMinutes":0.47601781107335894,"ayanamsa":25.6923}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Navamī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"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 September 1, 2131 CE · Howrah, West Bengal · Vidhyamitra","description":"September 1, 2131 CE for Howrah, West Bengal: Śukla Navamī, sūryodaya 05:19, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2131-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2131-09-01","sa":"https://sa.vidhyamitra.com/city/howrah/2131-09-01","hi":"https://hi.vidhyamitra.com/city/howrah/2131-09-01","x-default":"https://vidhyamitra.com/city/howrah/2131-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:50:57.503Z","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":"2026-06-01T21:50:57.503Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:50:57.503Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}