{"id":"vidhyamitra:city-day:howrah:2156-01-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2156-01-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2156-01-31","date_display":"January 31, 2156 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":2156,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508552.770833,"kali_year":5257,"ahargana":1920087.2708,"sun":{"sidereal_longitude":284.1943,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":29.8882,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":105.6939,"elapsed_within_tithi_degrees":9.6939},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":29.8882,"elapsed_within_degrees":3.2215},"yoga":{"number":24,"name":"Śukla","sum_longitude":314.0825},"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":2156,"month":1,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508552.770833,"ahargana":1920087.2708,"kali_year":5257,"ayanamsa_lahiri":26.0333,"grahas":{"sun":{"sidereal_longitude":284.568894,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":33.13199400000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":4.0893},"mars":{"sidereal_longitude":307.9725940000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":268.36079399999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":63.260793999999976,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":328.545394,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":142.322794,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":324.5363,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":144.5363,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2156,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508552.770833,"kali_year":5257,"ahargana":1920087.2708,"sun":{"sidereal_longitude":284.1943,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":29.8882,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":105.6939,"elapsed_within_tithi_degrees":9.6939},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":29.8882,"elapsed_within_degrees":3.2215},"yoga":{"number":24,"name":"Śukla","sum_longitude":314.0825},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.089,"elongation":105.694},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.089,"opposition_distance":74.306}},"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":"06:17","sunsetLocal":"17:24","solarNoonLocal":"11:50","dayLengthHours":11.117122228454512,"dayLengthDisplay":"11 Hours 07 Mins 02 Secs","nightLengthDisplay":"12 Hours 52 Mins 58 Secs","moonriseLocal":"12:27","moonsetLocal":"01:42","rahuKala":{"name":"Rāhu Kāla","start":"09:04","end":"10:27","startHours":9.061972585250409,"endHours":10.451612863807222,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:14","end":"14:37","startHours":13.23089342092085,"endHours":14.620533699477665,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:17","end":"07:40","startHours":6.28269202813678,"endHours":7.672332306693594,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:15","startHours":8.876687214776165,"endHours":9.247257955724649,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:45","end":"07:03","startHours":6.745905454322385,"endHours":7.042362047081172,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:28","end":"12:13","startHours":11.470682401415552,"endHours":12.211823883312519,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:32","startHours":4.800409064342845,"endHours":5.5415505462398125,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:21","end":"06:17","startHours":5.356265175765571,"endHours":6.28269202813678,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:42","end":"14:26","startHours":13.694106847106454,"endHours":14.435248329003421,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.199814256591292,"endHours":17.59981425659129,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:52","startHours":17.39981425659129,"endHours":17.863027682776895,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.14981425659129,"endHours":18.89981425659129,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:28","end":"00:13","startHours":23.47068240141555,"endHours":24.21182388331252,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:17","end":"07:40","startHours":6.28269202813678,"endHours":7.672332306693594,"quality":"inauspicious"},{"name":"Śubha","start":"07:40","end":"09:04","startHours":7.672332306693594,"endHours":9.061972585250409,"quality":"auspicious"},{"name":"Roga","start":"09:04","end":"10:27","startHours":9.061972585250409,"endHours":10.451612863807222,"quality":"inauspicious"},{"name":"Udveg","start":"10:27","end":"11:50","startHours":10.451612863807222,"endHours":11.841253142364035,"quality":"inauspicious"},{"name":"Chala","start":"11:50","end":"13:14","startHours":11.841253142364035,"endHours":13.23089342092085,"quality":"neutral"},{"name":"Labha","start":"13:14","end":"14:37","startHours":13.23089342092085,"endHours":14.620533699477665,"quality":"auspicious"},{"name":"Amṛta","start":"14:37","end":"16:01","startHours":14.620533699477665,"endHours":16.010173978034477,"quality":"auspicious"},{"name":"Kāla","start":"16:01","end":"17:24","startHours":16.010173978034477,"endHours":17.39981425659129,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:24","end":"19:01","startHours":17.39981425659129,"endHours":19.010173978034477,"quality":"auspicious"},{"name":"Amṛta","start":"19:01","end":"20:37","startHours":19.010173978034477,"endHours":20.62053369947766,"quality":"auspicious"},{"name":"Kāla","start":"20:37","end":"22:14","startHours":20.62053369947766,"endHours":22.23089342092085,"quality":"inauspicious"},{"name":"Śubha","start":"22:14","end":"23:50","startHours":22.23089342092085,"endHours":23.841253142364035,"quality":"auspicious"},{"name":"Roga","start":"23:50","end":"01:27","startHours":23.841253142364035,"endHours":25.45161286380722,"quality":"inauspicious"},{"name":"Udveg","start":"01:27","end":"03:04","startHours":25.45161286380722,"endHours":27.06197258525041,"quality":"inauspicious"},{"name":"Chala","start":"03:04","end":"04:40","startHours":27.06197258525041,"endHours":28.672332306693594,"quality":"neutral"},{"name":"Labha","start":"04:40","end":"06:17","startHours":28.672332306693594,"endHours":30.28269202813678,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:17","end":"07:17","startHours":6.28269202813678,"endHours":7.28269202813678,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:17","end":"08:17","startHours":7.28269202813678,"endHours":8.282692028136779,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:17","end":"09:17","startHours":8.282692028136779,"endHours":9.282692028136779,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:17","end":"10:17","startHours":9.282692028136779,"endHours":10.282692028136779,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:17","end":"11:17","startHours":10.282692028136779,"endHours":11.282692028136779,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:17","end":"12:17","startHours":11.282692028136779,"endHours":12.282692028136779,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:17","end":"13:17","startHours":12.282692028136779,"endHours":13.282692028136779,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:17","end":"14:17","startHours":13.282692028136779,"endHours":14.282692028136779,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:17","end":"15:17","startHours":14.282692028136779,"endHours":15.282692028136779,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:17","end":"16:17","startHours":15.282692028136779,"endHours":16.28269202813678,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:17","end":"17:17","startHours":16.28269202813678,"endHours":17.28269202813678,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:17","end":"18:17","startHours":17.28269202813678,"endHours":18.28269202813678,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:17","end":"19:17","startHours":18.28269202813678,"endHours":19.28269202813678,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:17","end":"20:17","startHours":19.28269202813678,"endHours":20.28269202813678,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:17","end":"21:17","startHours":20.28269202813678,"endHours":21.28269202813678,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:17","end":"22:17","startHours":21.28269202813678,"endHours":22.28269202813678,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:17","end":"23:17","startHours":22.28269202813678,"endHours":23.28269202813678,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:17","end":"00:17","startHours":23.28269202813678,"endHours":24.28269202813678,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:17","end":"01:17","startHours":24.28269202813678,"endHours":25.28269202813678,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:17","end":"02:17","startHours":25.28269202813678,"endHours":26.28269202813678,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:17","end":"03:17","startHours":26.28269202813678,"endHours":27.28269202813678,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:17","end":"04:17","startHours":27.28269202813678,"endHours":28.28269202813678,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:17","end":"05:17","startHours":28.28269202813678,"endHours":29.28269202813678,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:17","end":"06:17","startHours":29.28269202813678,"endHours":30.28269202813678,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.576381132016603,"eotMinutes":-13.52958854184206,"ayanamsa":26.0333}},"calendars":{"vikram_samvat":2213,"vikram_samvatsara":"Śukla","saka_samvat":2078,"saka_samvatsara":"Nala","bengali_samvat":1563,"malayalam_era":1332,"nanakshahi_year":687,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Navamī · Vikram 2213 Śukla · Śaka 2078 Nala"},"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 January 31, 2156 CE · Howrah, West Bengal · Vidhyamitra","description":"January 31, 2156 CE for Howrah, West Bengal: Śukla Navamī, sūryodaya 06:17, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2156-01-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2156-01-31","sa":"https://sa.vidhyamitra.com/city/howrah/2156-01-31","hi":"https://hi.vidhyamitra.com/city/howrah/2156-01-31","x-default":"https://vidhyamitra.com/city/howrah/2156-01-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T00:41:21.431Z","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":"2026-06-02T00:41:21.431Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T00:41:21.431Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}