{"id":"vidhyamitra:city-day:vrindavan:1871-04-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1871-04-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1871-04-01","date_display":"April 1, 1871 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":1871,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404518.770833,"kali_year":4972,"ahargana":1816053.2708,"sun":{"sidereal_longitude":349.2927,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":111.9381,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.6453,"elapsed_within_tithi_degrees":2.6453},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":111.9381,"elapsed_within_degrees":5.2714},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.2308},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":1871,"month":4,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2404518.770833,"ahargana":1816053.2708,"kali_year":4972,"ayanamsa_lahiri":22.0544,"grahas":{"sun":{"sidereal_longitude":348.830258,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":110.24045799999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":2.5909},"mars":{"sidereal_longitude":154.28065800000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":354.254558,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":59.651058000000035,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":17.675358000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":258.61975800000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":76.7583,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":256.7583,"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":1871,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404518.770833,"kali_year":4972,"ahargana":1816053.2708,"sun":{"sidereal_longitude":349.2927,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":111.9381,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.6453,"elapsed_within_tithi_degrees":2.6453},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":111.9381,"elapsed_within_degrees":5.2714},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":101.2308},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.591,"elongation":122.645},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.591,"opposition_distance":57.355}},"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":"06:11","sunsetLocal":"18:36","solarNoonLocal":"12:24","dayLengthHours":12.426216019987702,"dayLengthDisplay":"12 Hours 25 Mins 34 Secs","nightLengthDisplay":"11 Hours 34 Mins 26 Secs","moonriseLocal":"13:50","moonsetLocal":"03:09","rahuKala":{"name":"Rāhu Kāla","start":"09:17","end":"10:51","startHours":9.2885642633556,"endHours":10.841841265854061,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:57","end":"15:30","startHours":13.948395270850988,"endHours":15.501672273349449,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:11","end":"07:44","startHours":6.182010258358674,"endHours":7.735287260857136,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:30","startHours":9.081460663022472,"endHours":9.495667863688729,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:02","startHours":6.699769259191495,"endHours":7.0311350197245,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:49","startHours":11.980911067686268,"endHours":12.80932546901878,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:32","end":"05:21","startHours":4.525181455693647,"endHours":5.353595857026161,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:11","startHours":5.146492256693032,"endHours":6.182010258358674,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:18","startHours":14.46615427168381,"endHours":15.294568673016324,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.408226278346376,"endHours":18.808226278346375,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:08","startHours":18.608226278346375,"endHours":19.125985279179197,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.358226278346375,"endHours":20.108226278346375,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:49","startHours":23.980911067686268,"endHours":24.809325469018784,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:11","end":"07:44","startHours":6.182010258358674,"endHours":7.735287260857136,"quality":"inauspicious"},{"name":"Śubha","start":"07:44","end":"09:17","startHours":7.735287260857136,"endHours":9.2885642633556,"quality":"auspicious"},{"name":"Roga","start":"09:17","end":"10:51","startHours":9.2885642633556,"endHours":10.841841265854061,"quality":"inauspicious"},{"name":"Udveg","start":"10:51","end":"12:24","startHours":10.841841265854061,"endHours":12.395118268352526,"quality":"inauspicious"},{"name":"Chala","start":"12:24","end":"13:57","startHours":12.395118268352526,"endHours":13.948395270850988,"quality":"neutral"},{"name":"Labha","start":"13:57","end":"15:30","startHours":13.948395270850988,"endHours":15.501672273349449,"quality":"auspicious"},{"name":"Amṛta","start":"15:30","end":"17:03","startHours":15.501672273349449,"endHours":17.054949275847914,"quality":"auspicious"},{"name":"Kāla","start":"17:03","end":"18:36","startHours":17.054949275847914,"endHours":18.608226278346375,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:36","end":"20:03","startHours":18.608226278346375,"endHours":20.054949275847914,"quality":"auspicious"},{"name":"Amṛta","start":"20:03","end":"21:30","startHours":20.054949275847914,"endHours":21.50167227334945,"quality":"auspicious"},{"name":"Kāla","start":"21:30","end":"22:57","startHours":21.50167227334945,"endHours":22.948395270850988,"quality":"inauspicious"},{"name":"Śubha","start":"22:57","end":"00:24","startHours":22.948395270850988,"endHours":24.395118268352526,"quality":"auspicious"},{"name":"Roga","start":"00:24","end":"01:51","startHours":24.395118268352526,"endHours":25.84184126585406,"quality":"inauspicious"},{"name":"Udveg","start":"01:51","end":"03:17","startHours":25.84184126585406,"endHours":27.2885642633556,"quality":"inauspicious"},{"name":"Chala","start":"03:17","end":"04:44","startHours":27.2885642633556,"endHours":28.735287260857135,"quality":"neutral"},{"name":"Labha","start":"04:44","end":"06:11","startHours":28.735287260857135,"endHours":30.182010258358673,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:11","end":"07:11","startHours":6.182010258358674,"endHours":7.182010258358674,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:11","end":"08:11","startHours":7.182010258358674,"endHours":8.182010258358673,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:11","end":"09:11","startHours":8.182010258358673,"endHours":9.182010258358673,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:11","end":"10:11","startHours":9.182010258358673,"endHours":10.182010258358673,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:11","end":"11:11","startHours":10.182010258358673,"endHours":11.182010258358673,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:11","end":"12:11","startHours":11.182010258358673,"endHours":12.182010258358673,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:11","end":"13:11","startHours":12.182010258358673,"endHours":13.182010258358673,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:11","end":"14:11","startHours":13.182010258358673,"endHours":14.182010258358673,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:11","end":"15:11","startHours":14.182010258358673,"endHours":15.182010258358673,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:11","end":"16:11","startHours":15.182010258358673,"endHours":16.182010258358673,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:11","end":"17:11","startHours":16.182010258358673,"endHours":17.182010258358673,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:11","end":"18:11","startHours":17.182010258358673,"endHours":18.182010258358673,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:11","end":"19:11","startHours":18.182010258358673,"endHours":19.182010258358673,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:11","end":"20:11","startHours":19.182010258358673,"endHours":20.182010258358673,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:11","end":"21:11","startHours":20.182010258358673,"endHours":21.182010258358673,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:11","end":"22:11","startHours":21.182010258358673,"endHours":22.182010258358673,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:11","end":"23:11","startHours":22.182010258358673,"endHours":23.182010258358673,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:11","end":"00:11","startHours":23.182010258358673,"endHours":24.182010258358673,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:11","end":"01:11","startHours":24.182010258358673,"endHours":25.182010258358673,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:11","end":"02:11","startHours":25.182010258358673,"endHours":26.182010258358673,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:11","end":"03:11","startHours":26.182010258358673,"endHours":27.182010258358673,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:11","end":"04:11","startHours":27.182010258358673,"endHours":28.182010258358673,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:11","end":"05:11","startHours":28.182010258358673,"endHours":29.182010258358673,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:11","end":"06:11","startHours":29.182010258358673,"endHours":30.182010258358673,"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.307244716013628,"eotMinutes":-4.344296101151456,"ayanamsa":22.0544}},"calendars":{"vikram_samvat":1928,"vikram_samvatsara":"Tāraṇa","saka_samvat":1793,"saka_samvatsara":"Prajāpati","bengali_samvat":1278,"malayalam_era":1047,"nanakshahi_year":402,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Ekādaśī · Vikram 1928 Tāraṇa · Śaka 1793 Prajāpati"},"festivals":[{"id":"kamada-ekadashi","name":"Kāmadā Ekādaśī","name_sanskrit":"कामदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Fulfills righteous desires; removes brahma-hatyā.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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 April 1, 1871 CE · Vṛndāvana · Vidhyamitra","description":"April 1, 1871 CE for Vṛndāvana: Śukla Ekādaśī, sūryodaya 06:11, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1871-04-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1871-04-01","sa":"https://sa.vidhyamitra.com/city/vrindavan/1871-04-01","hi":"https://hi.vidhyamitra.com/city/vrindavan/1871-04-01","x-default":"https://vidhyamitra.com/city/vrindavan/1871-04-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:35:05.461Z","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":"2026-05-31T19:35:05.461Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:35:05.461Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}