{"id":"vidhyamitra:city-day:vrindavan:1971-09-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1971-09-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-09-11","date_display":"September 11, 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1971,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441205.770833,"kali_year":5073,"ahargana":1852740.2708,"sun":{"sidereal_longitude":143.5549,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":41.132,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.5771,"elapsed_within_tithi_degrees":5.5771},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":41.132,"elapsed_within_degrees":1.132},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.6868},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":1971,"month":9,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441205.770833,"ahargana":1852740.2708,"kali_year":5073,"ayanamsa_lahiri":23.4576,"grahas":{"sun":{"sidereal_longitude":144.20284500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":44.96234500000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false,"latitude":4.2738},"mars":{"sidereal_longitude":288.81734499999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":126.80524500000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":217.21914500000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":148.49404500000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":43.38514500000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":292.9044,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":112.9044,"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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1971,"month":9,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441205.770833,"kali_year":5073,"ahargana":1852740.2708,"sun":{"sidereal_longitude":143.5549,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":41.132,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.5771,"elapsed_within_tithi_degrees":5.5771},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1,"moon_longitude":41.132,"elapsed_within_degrees":1.132},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.6868},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.274,"elongation":102.423},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.274,"opposition_distance":77.577}},"eclipse_window_40days":[]},"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":"06:01","sunsetLocal":"18:29","solarNoonLocal":"12:15","dayLengthHours":12.466217319056426,"dayLengthDisplay":"12 Hours 27 Mins 58 Secs","nightLengthDisplay":"11 Hours 32 Mins 02 Secs","moonriseLocal":"22:48","moonsetLocal":"12:29","rahuKala":{"name":"Rāhu Kāla","start":"09:08","end":"10:42","startHours":9.13925246766318,"endHours":10.697529632545233,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:49","end":"15:22","startHours":13.81408396230934,"endHours":15.372361127191393,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:01","end":"07:35","startHours":6.0226981378990745,"endHours":7.580975302781128,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:21","startHours":8.93148217901224,"endHours":9.347022756314121,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:33","end":"06:52","startHours":6.542123859526425,"endHours":6.87455632136793,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:40","startHours":11.840266220125406,"endHours":12.671347374729168,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:11","startHours":4.360535828691551,"endHours":5.1916169832953125,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:59","end":"06:01","startHours":4.983846694644372,"endHours":6.0226981378990745,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:10","startHours":14.333509683936693,"endHours":15.164590838540455,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.2889154569555,"endHours":18.6889154569555,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:01","startHours":18.4889154569555,"endHours":19.00834117858285,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.2389154569555,"endHours":19.9889154569555,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:40","startHours":23.840266220125407,"endHours":24.671347374729166,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:01","end":"07:35","startHours":6.0226981378990745,"endHours":7.580975302781128,"quality":"inauspicious"},{"name":"Śubha","start":"07:35","end":"09:08","startHours":7.580975302781128,"endHours":9.13925246766318,"quality":"auspicious"},{"name":"Roga","start":"09:08","end":"10:42","startHours":9.13925246766318,"endHours":10.697529632545233,"quality":"inauspicious"},{"name":"Udveg","start":"10:42","end":"12:15","startHours":10.697529632545233,"endHours":12.255806797427287,"quality":"inauspicious"},{"name":"Chala","start":"12:15","end":"13:49","startHours":12.255806797427287,"endHours":13.81408396230934,"quality":"neutral"},{"name":"Labha","start":"13:49","end":"15:22","startHours":13.81408396230934,"endHours":15.372361127191393,"quality":"auspicious"},{"name":"Amṛta","start":"15:22","end":"16:56","startHours":15.372361127191393,"endHours":16.930638292073446,"quality":"auspicious"},{"name":"Kāla","start":"16:56","end":"18:29","startHours":16.930638292073446,"endHours":18.4889154569555,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:29","end":"19:56","startHours":18.4889154569555,"endHours":19.930638292073446,"quality":"auspicious"},{"name":"Amṛta","start":"19:56","end":"21:22","startHours":19.930638292073446,"endHours":21.372361127191393,"quality":"auspicious"},{"name":"Kāla","start":"21:22","end":"22:49","startHours":21.372361127191393,"endHours":22.81408396230934,"quality":"inauspicious"},{"name":"Śubha","start":"22:49","end":"00:15","startHours":22.81408396230934,"endHours":24.255806797427287,"quality":"auspicious"},{"name":"Roga","start":"00:15","end":"01:42","startHours":24.255806797427287,"endHours":25.697529632545233,"quality":"inauspicious"},{"name":"Udveg","start":"01:42","end":"03:08","startHours":25.697529632545233,"endHours":27.13925246766318,"quality":"inauspicious"},{"name":"Chala","start":"03:08","end":"04:35","startHours":27.13925246766318,"endHours":28.580975302781127,"quality":"neutral"},{"name":"Labha","start":"04:35","end":"06:01","startHours":28.580975302781127,"endHours":30.022698137899074,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.0226981378990745,"endHours":7.0226981378990745,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.0226981378990745,"endHours":8.022698137899074,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.022698137899074,"endHours":9.022698137899074,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.022698137899074,"endHours":10.022698137899074,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.022698137899074,"endHours":11.022698137899074,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.022698137899074,"endHours":12.022698137899074,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.022698137899074,"endHours":13.022698137899074,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.022698137899074,"endHours":14.022698137899074,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.022698137899074,"endHours":15.022698137899074,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.022698137899074,"endHours":16.022698137899074,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.022698137899074,"endHours":17.022698137899074,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.022698137899074,"endHours":18.022698137899074,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.022698137899074,"endHours":19.022698137899074,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.022698137899074,"endHours":20.022698137899074,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.022698137899074,"endHours":21.022698137899074,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.022698137899074,"endHours":22.022698137899074,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.022698137899074,"endHours":23.022698137899074,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.022698137899074,"endHours":24.022698137899074,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.022698137899074,"endHours":25.022698137899074,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.022698137899074,"endHours":26.022698137899074,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.022698137899074,"endHours":27.022698137899074,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.022698137899074,"endHours":28.022698137899074,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.022698137899074,"endHours":29.022698137899074,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.022698137899074,"endHours":30.022698137899074,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"Dhātṛ","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":4.8758729069610025,"eotMinutes":4.014392154362758,"ayanamsa":23.4576}},"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 Saptamī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"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":[]},"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 11, 1971 CE · Vṛndāvana · Vidhyamitra","description":"September 11, 1971 CE for Vṛndāvana: Kṛṣṇa Saptamī, sūryodaya 06:01, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1971-09-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1971-09-11","sa":"https://sa.vidhyamitra.com/city/vrindavan/1971-09-11","hi":"https://hi.vidhyamitra.com/city/vrindavan/1971-09-11","x-default":"https://vidhyamitra.com/city/vrindavan/1971-09-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T08:10:21.687Z","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":"2026-09-06T08:10:21.687Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T08:10:21.687Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}