{"id":"vidhyamitra:city-day:vrindavan:1971-09-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1971-09-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-09-06","date_display":"September 6, 1971 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":1971,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441200.770833,"kali_year":5073,"ahargana":1852735.2708,"sun":{"sidereal_longitude":138.7142,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":329.5455,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.8313,"elapsed_within_tithi_degrees":10.8313},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.5455,"elapsed_within_degrees":9.5455},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2597},"karana":{"half_tithi_index":31,"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":1971,"month":9,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441200.770833,"ahargana":1852735.2708,"kali_year":5073,"ayanamsa_lahiri":23.4574,"grahas":{"sun":{"sidereal_longitude":139.34803599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":331.62533600000006,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":2.6671},"mars":{"sidereal_longitude":288.882336,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":124.414736,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":216.59463600000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":142.28213599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":43.28873599999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":293.1694,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":113.1694,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1971,"month":9,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441200.770833,"kali_year":5073,"ahargana":1852735.2708,"sun":{"sidereal_longitude":138.7142,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":329.5455,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.8313,"elapsed_within_tithi_degrees":10.8313},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.5455,"elapsed_within_degrees":9.5455},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2597},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.667,"elongation":169.169},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.667,"opposition_distance":10.831}},"eclipse_window_40days":[{"offset_days":-16,"type":"solar","occurs":true,"moon_latitude":-0.93,"elongation":2.643}]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:59","sunsetLocal":"18:35","solarNoonLocal":"12:17","dayLengthHours":12.59892690307379,"dayLengthDisplay":"12 Hours 35 Mins 56 Secs","nightLengthDisplay":"11 Hours 24 Mins 04 Secs","moonriseLocal":"19:08","moonsetLocal":"07:05","rahuKala":{"name":"Rāhu Kāla","start":"07:34","end":"09:08","startHours":7.5614322827633185,"endHours":9.136298145647542,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:43","end":"12:17","startHours":10.711164008531767,"endHours":12.286029871415991,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:52","end":"15:26","startHours":13.860895734300215,"endHours":15.435761597184438,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:21","startHours":8.926316030596313,"endHours":9.346280260698773,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:51","startHours":6.511521707507169,"endHours":6.847493091589137,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:42","startHours":11.866065641313531,"endHours":12.705994101518451,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:18","end":"05:09","startHours":4.306709499469256,"endHours":5.146637959674176,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"05:59","startHours":4.936655844622946,"endHours":5.986566419879095,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:14","startHours":14.38585102192829,"endHours":15.225779482133209,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:23","end":"18:47","startHours":18.385493322952886,"endHours":18.785493322952885,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:35","end":"19:07","startHours":18.585493322952885,"endHours":19.11044861058096,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:20","end":"20:05","startHours":18.335493322952885,"endHours":20.085493322952885,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:42","startHours":23.866065641313533,"endHours":24.70599410151845,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:59","end":"07:34","startHours":5.986566419879095,"endHours":7.5614322827633185,"quality":"auspicious"},{"name":"Kāla","start":"07:34","end":"09:08","startHours":7.5614322827633185,"endHours":9.136298145647542,"quality":"inauspicious"},{"name":"Śubha","start":"09:08","end":"10:43","startHours":9.136298145647542,"endHours":10.711164008531767,"quality":"auspicious"},{"name":"Roga","start":"10:43","end":"12:17","startHours":10.711164008531767,"endHours":12.286029871415991,"quality":"inauspicious"},{"name":"Udveg","start":"12:17","end":"13:52","startHours":12.286029871415991,"endHours":13.860895734300215,"quality":"inauspicious"},{"name":"Chala","start":"13:52","end":"15:26","startHours":13.860895734300215,"endHours":15.435761597184438,"quality":"neutral"},{"name":"Labha","start":"15:26","end":"17:01","startHours":15.435761597184438,"endHours":17.01062746006866,"quality":"auspicious"},{"name":"Amṛta","start":"17:01","end":"18:35","startHours":17.01062746006866,"endHours":18.585493322952885,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:35","end":"20:01","startHours":18.585493322952885,"endHours":20.01062746006866,"quality":"neutral"},{"name":"Labha","start":"20:01","end":"21:26","startHours":20.01062746006866,"endHours":21.435761597184438,"quality":"auspicious"},{"name":"Amṛta","start":"21:26","end":"22:52","startHours":21.435761597184438,"endHours":22.860895734300215,"quality":"auspicious"},{"name":"Kāla","start":"22:52","end":"00:17","startHours":22.860895734300215,"endHours":24.28602987141599,"quality":"inauspicious"},{"name":"Śubha","start":"00:17","end":"01:43","startHours":24.28602987141599,"endHours":25.711164008531767,"quality":"auspicious"},{"name":"Roga","start":"01:43","end":"03:08","startHours":25.711164008531767,"endHours":27.136298145647544,"quality":"inauspicious"},{"name":"Udveg","start":"03:08","end":"04:34","startHours":27.136298145647544,"endHours":28.56143228276332,"quality":"inauspicious"},{"name":"Chala","start":"04:34","end":"05:59","startHours":28.56143228276332,"endHours":29.986566419879097,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.986566419879095,"endHours":6.986566419879095,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.986566419879095,"endHours":7.986566419879095,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.986566419879095,"endHours":8.986566419879095,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.986566419879095,"endHours":9.986566419879095,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.986566419879095,"endHours":10.986566419879095,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.986566419879095,"endHours":11.986566419879095,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.986566419879095,"endHours":12.986566419879095,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.986566419879095,"endHours":13.986566419879095,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.986566419879095,"endHours":14.986566419879095,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.986566419879095,"endHours":15.986566419879095,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.986566419879095,"endHours":16.986566419879097,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.986566419879097,"endHours":17.986566419879097,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.986566419879097,"endHours":18.986566419879097,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.986566419879097,"endHours":19.986566419879097,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.986566419879097,"endHours":20.986566419879097,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.986566419879097,"endHours":21.986566419879097,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.986566419879097,"endHours":22.986566419879097,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.986566419879097,"endHours":23.986566419879097,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.986566419879097,"endHours":24.986566419879097,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.986566419879097,"endHours":25.986566419879097,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.986566419879097,"endHours":26.986566419879097,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.986566419879097,"endHours":27.986566419879097,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.986566419879097,"endHours":28.986566419879097,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.986566419879097,"endHours":29.986566419879097,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Ānanda","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":6.752264262892253,"eotMinutes":2.2010077150405363,"ayanamsa":23.4574}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","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":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Pratipada · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"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":[]},"validity":{"eternal":false,"location_specific":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 6, 1971 CE · Vṛndāvana · Vidhyamitra","description":"September 6, 1971 CE for Vṛndāvana: Kṛṣṇa Pratipada, sūryodaya 05:59, sūryāsta 18:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1971-09-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1971-09-06","sa":"https://sa.vidhyamitra.com/city/vrindavan/1971-09-06","hi":"https://hi.vidhyamitra.com/city/vrindavan/1971-09-06","x-default":"https://vidhyamitra.com/city/vrindavan/1971-09-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T00:25:12.178Z","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":"2026-06-03T00:25:12.178Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T00:25:12.178Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}