{"id":"vidhyamitra:city-day:patna:2016-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/patna/2016-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2016-02-01","date_display":"February 1, 2016 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":2016,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457419.770833,"kali_year":5117,"ahargana":1868954.2708,"sun":{"sidereal_longitude":287.4933,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":198.2714,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.7781,"elapsed_within_tithi_degrees":6.7781},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":198.2714,"elapsed_within_degrees":11.6047},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":125.7647},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2016,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457419.770833,"ahargana":1868954.2708,"kali_year":5117,"ayanamsa_lahiri":24.0777,"grahas":{"sun":{"sidereal_longitude":287.51825099999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":196.27045099999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":3.1503},"mars":{"sidereal_longitude":200.66595099999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":262.6787509999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":147.536851,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":255.76895100000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":229.832451,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":153.8087,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":333.8087,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara 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":2016,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457419.770833,"kali_year":5117,"ahargana":1868954.2708,"sun":{"sidereal_longitude":287.4933,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":198.2714,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.7781,"elapsed_within_tithi_degrees":6.7781},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":198.2714,"elapsed_within_degrees":11.6047},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":125.7647},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.15,"elongation":89.222},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.15,"opposition_distance":90.778}},"eclipse_window_40days":[]},"city":{"slug":"patna","name":"Patna, Bihar","lat":25.5941,"lon":85.1376,"tz_offset_hours":5.5,"state":"Bihar","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"patna","name":"Patna, Bihar","lat":25.5941,"lon":85.1376,"tz_offset_hours":5.5,"state":"Bihar","country":"IN","tier":"tier-1"},"sunriseLocal":"06:34","sunsetLocal":"17:33","solarNoonLocal":"12:03","dayLengthHours":10.986000380265839,"dayLengthDisplay":"10 Hours 59 Mins 10 Secs","nightLengthDisplay":"13 Hours 00 Mins 50 Secs","moonriseLocal":"00:25","moonsetLocal":"11:32","rahuKala":{"name":"Rāhu Kāla","start":"07:56","end":"09:18","startHours":7.932565659356904,"endHours":9.305815706890133,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:41","end":"12:03","startHours":10.679065754423362,"endHours":12.052315801956592,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:26","end":"14:48","startHours":13.425565849489821,"endHours":14.798815897023054,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:07","end":"09:29","startHours":9.12271570055237,"endHours":9.488915713227897,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:01","end":"07:19","startHours":7.017065627668083,"endHours":7.310025637808506,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:25","startHours":11.686115789281066,"endHours":12.418515814632121,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:06","end":"05:50","startHours":5.094515561121561,"endHours":5.826915586472618,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:39","end":"06:34","startHours":5.643815580134853,"endHours":6.559315611823673,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:53","end":"14:37","startHours":13.883315865334232,"endHours":14.615715890685289,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.345315992089514,"endHours":17.745315992089512,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"18:00","startHours":17.545315992089513,"endHours":18.003066007933924,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.295315992089513,"endHours":19.045315992089513,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:25","startHours":23.686115789281068,"endHours":24.418515814632123,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:34","end":"07:56","startHours":6.559315611823673,"endHours":7.932565659356904,"quality":"auspicious"},{"name":"Kāla","start":"07:56","end":"09:18","startHours":7.932565659356904,"endHours":9.305815706890133,"quality":"inauspicious"},{"name":"Śubha","start":"09:18","end":"10:41","startHours":9.305815706890133,"endHours":10.679065754423362,"quality":"auspicious"},{"name":"Roga","start":"10:41","end":"12:03","startHours":10.679065754423362,"endHours":12.052315801956592,"quality":"inauspicious"},{"name":"Udveg","start":"12:03","end":"13:26","startHours":12.052315801956592,"endHours":13.425565849489821,"quality":"inauspicious"},{"name":"Chala","start":"13:26","end":"14:48","startHours":13.425565849489821,"endHours":14.798815897023054,"quality":"neutral"},{"name":"Labha","start":"14:48","end":"16:10","startHours":14.798815897023054,"endHours":16.172065944556284,"quality":"auspicious"},{"name":"Amṛta","start":"16:10","end":"17:33","startHours":16.172065944556284,"endHours":17.545315992089513,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:33","end":"19:10","startHours":17.545315992089513,"endHours":19.172065944556284,"quality":"neutral"},{"name":"Labha","start":"19:10","end":"20:48","startHours":19.172065944556284,"endHours":20.798815897023054,"quality":"auspicious"},{"name":"Amṛta","start":"20:48","end":"22:26","startHours":20.798815897023054,"endHours":22.42556584948982,"quality":"auspicious"},{"name":"Kāla","start":"22:26","end":"00:03","startHours":22.42556584948982,"endHours":24.052315801956595,"quality":"inauspicious"},{"name":"Śubha","start":"00:03","end":"01:41","startHours":24.052315801956595,"endHours":25.679065754423362,"quality":"auspicious"},{"name":"Roga","start":"01:41","end":"03:18","startHours":25.679065754423362,"endHours":27.305815706890133,"quality":"inauspicious"},{"name":"Udveg","start":"03:18","end":"04:56","startHours":27.305815706890133,"endHours":28.932565659356904,"quality":"inauspicious"},{"name":"Chala","start":"04:56","end":"06:34","startHours":28.932565659356904,"endHours":30.559315611823674,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:34","end":"07:34","startHours":6.559315611823673,"endHours":7.559315611823673,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:34","end":"08:34","startHours":7.559315611823673,"endHours":8.559315611823674,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:34","end":"09:34","startHours":8.559315611823674,"endHours":9.559315611823674,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:34","end":"10:34","startHours":9.559315611823674,"endHours":10.559315611823674,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:34","end":"11:34","startHours":10.559315611823674,"endHours":11.559315611823674,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:34","end":"12:34","startHours":11.559315611823674,"endHours":12.559315611823674,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:34","end":"13:34","startHours":12.559315611823674,"endHours":13.559315611823674,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:34","end":"14:34","startHours":13.559315611823674,"endHours":14.559315611823674,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:34","end":"15:34","startHours":14.559315611823674,"endHours":15.559315611823674,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:34","end":"16:34","startHours":15.559315611823674,"endHours":16.559315611823674,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:34","end":"17:34","startHours":16.559315611823674,"endHours":17.559315611823674,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:34","end":"18:34","startHours":17.559315611823674,"endHours":18.559315611823674,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:34","end":"19:34","startHours":18.559315611823674,"endHours":19.559315611823674,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:34","end":"20:34","startHours":19.559315611823674,"endHours":20.559315611823674,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:34","end":"21:34","startHours":20.559315611823674,"endHours":21.559315611823674,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:34","end":"22:34","startHours":21.559315611823674,"endHours":22.559315611823674,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:34","end":"23:34","startHours":22.559315611823674,"endHours":23.559315611823674,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:34","end":"00:34","startHours":23.559315611823674,"endHours":24.559315611823674,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:34","end":"01:34","startHours":24.559315611823674,"endHours":25.559315611823674,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:34","end":"02:34","startHours":25.559315611823674,"endHours":26.559315611823674,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:34","end":"03:34","startHours":26.559315611823674,"endHours":27.559315611823674,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:34","end":"04:34","startHours":27.559315611823674,"endHours":28.559315611823674,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:34","end":"05:34","startHours":28.559315611823674,"endHours":29.559315611823674,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:34","end":"06:34","startHours":29.559315611823674,"endHours":30.559315611823674,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","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":-17.30404243217801,"eotMinutes":-13.689348117395623,"ayanamsa":24.0777}},"calendars":{"vikram_samvat":2073,"vikram_samvatsara":"Saumya","saka_samvat":1938,"saka_samvatsara":"Durmukhi","bengali_samvat":1423,"malayalam_era":1192,"nanakshahi_year":547,"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 2073 Saumya · Śaka 1938 Durmukhi"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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":"patna"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 1, 2016 CE · Patna, Bihar · Vidhyamitra","description":"February 1, 2016 CE for Patna, Bihar: Kṛṣṇa Aṣṭamī, sūryodaya 06:34, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/patna/2016-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/patna/2016-02-01","sa":"https://sa.vidhyamitra.com/city/patna/2016-02-01","hi":"https://hi.vidhyamitra.com/city/patna/2016-02-01","x-default":"https://vidhyamitra.com/city/patna/2016-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:54:23.430Z","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":"2026-06-01T08:54:23.430Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:54:23.430Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}