{"id":"vidhyamitra:city-day:vrindavan:1821-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1821-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1821-01-01","date_display":"January 1, 1821 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":1821,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386166.770833,"kali_year":4922,"ahargana":1797701.2708,"sun":{"sidereal_longitude":259.2372,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":218.998,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.7608,"elapsed_within_tithi_degrees":7.7608},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.998,"elapsed_within_degrees":5.6646},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.2352},"karana":{"half_tithi_index":53,"name":"Taitila"},"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":1821,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2386166.770833,"ahargana":1797701.2708,"kali_year":4922,"ayanamsa_lahiri":21.3525,"grahas":{"sun":{"sidereal_longitude":259.027639,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":219.19523900000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false,"latitude":-4.2244},"mars":{"sidereal_longitude":264.196239,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":239.97003900000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":328.692539,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":227.078039,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":347.454939,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":329.1355,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":149.1355,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":1821,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2386166.770833,"kali_year":4922,"ahargana":1797701.2708,"sun":{"sidereal_longitude":259.2372,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":218.998,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":319.7608,"elapsed_within_tithi_degrees":7.7608},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":218.998,"elapsed_within_degrees":5.6646},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.2352},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.224,"elongation":40.239},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.224,"opposition_distance":139.761}},"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":"07:10","sunsetLocal":"17:36","solarNoonLocal":"12:23","dayLengthHours":10.429839898169474,"dayLengthDisplay":"10 Hours 25 Mins 47 Secs","nightLengthDisplay":"13 Hours 34 Mins 13 Secs","moonriseLocal":"04:25","moonsetLocal":"15:02","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"09:47","startHours":8.473276343576384,"endHours":9.777006330847568,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:05","end":"12:23","startHours":11.080736318118753,"endHours":12.384466305389935,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:00","startHours":13.688196292661122,"endHours":14.991926279932304,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:57","startHours":9.603175665878076,"endHours":9.95083699581706,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:36","end":"07:53","startHours":7.604123018728927,"endHours":7.882252082680113,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:44","startHours":12.036804975450952,"endHours":12.732127635328919,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:47","end":"06:28","startHours":5.77890103654927,"endHours":6.474223696427234,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:10","startHours":6.300393031457743,"endHours":7.169546356305199,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:49","startHours":14.122772955084848,"endHours":14.818095614962813,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:24","end":"17:48","startHours":17.399386254474674,"endHours":17.799386254474673,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:36","end":"18:02","startHours":17.599386254474673,"endHours":18.0339629168984,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:21","end":"19:06","startHours":17.349386254474673,"endHours":19.099386254474673,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:44","startHours":24.036804975450952,"endHours":24.73212763532892,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:10","end":"08:28","startHours":7.169546356305199,"endHours":8.473276343576384,"quality":"auspicious"},{"name":"Kāla","start":"08:28","end":"09:47","startHours":8.473276343576384,"endHours":9.777006330847568,"quality":"inauspicious"},{"name":"Śubha","start":"09:47","end":"11:05","startHours":9.777006330847568,"endHours":11.080736318118753,"quality":"auspicious"},{"name":"Roga","start":"11:05","end":"12:23","startHours":11.080736318118753,"endHours":12.384466305389935,"quality":"inauspicious"},{"name":"Udveg","start":"12:23","end":"13:41","startHours":12.384466305389935,"endHours":13.688196292661122,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:00","startHours":13.688196292661122,"endHours":14.991926279932304,"quality":"neutral"},{"name":"Labha","start":"15:00","end":"16:18","startHours":14.991926279932304,"endHours":16.29565626720349,"quality":"auspicious"},{"name":"Amṛta","start":"16:18","end":"17:36","startHours":16.29565626720349,"endHours":17.599386254474673,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:36","end":"19:18","startHours":17.599386254474673,"endHours":19.29565626720349,"quality":"neutral"},{"name":"Labha","start":"19:18","end":"21:00","startHours":19.29565626720349,"endHours":20.991926279932304,"quality":"auspicious"},{"name":"Amṛta","start":"21:00","end":"22:41","startHours":20.991926279932304,"endHours":22.68819629266112,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:23","startHours":22.68819629266112,"endHours":24.384466305389935,"quality":"inauspicious"},{"name":"Śubha","start":"00:23","end":"02:05","startHours":24.384466305389935,"endHours":26.080736318118753,"quality":"auspicious"},{"name":"Roga","start":"02:05","end":"03:47","startHours":26.080736318118753,"endHours":27.77700633084757,"quality":"inauspicious"},{"name":"Udveg","start":"03:47","end":"05:28","startHours":27.77700633084757,"endHours":29.473276343576384,"quality":"inauspicious"},{"name":"Chala","start":"05:28","end":"07:10","startHours":29.473276343576384,"endHours":31.169546356305197,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.169546356305199,"endHours":8.169546356305199,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.169546356305199,"endHours":9.169546356305199,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.169546356305199,"endHours":10.169546356305199,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.169546356305199,"endHours":11.169546356305199,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.169546356305199,"endHours":12.169546356305199,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.169546356305199,"endHours":13.169546356305199,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.169546356305199,"endHours":14.169546356305199,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.169546356305199,"endHours":15.169546356305199,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.169546356305199,"endHours":16.169546356305197,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.169546356305197,"endHours":17.169546356305197,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.169546356305197,"endHours":18.169546356305197,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.169546356305197,"endHours":19.169546356305197,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.169546356305197,"endHours":20.169546356305197,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.169546356305197,"endHours":21.169546356305197,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.169546356305197,"endHours":22.169546356305197,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.169546356305197,"endHours":23.169546356305197,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.169546356305197,"endHours":24.169546356305197,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.169546356305197,"endHours":25.169546356305197,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.169546356305197,"endHours":26.169546356305197,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.169546356305197,"endHours":27.169546356305197,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.169546356305197,"endHours":28.169546356305197,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.169546356305197,"endHours":29.169546356305197,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.169546356305197,"endHours":30.169546356305197,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.169546356305197,"endHours":31.169546356305197,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.030629822580437,"eotMinutes":-3.705178323396069,"ayanamsa":21.3525}},"calendars":{"vikram_samvat":1878,"vikram_samvatsara":"Jaya","saka_samvat":1743,"saka_samvatsara":"Vṛṣa","bengali_samvat":1228,"malayalam_era":997,"nanakshahi_year":352,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Dvādaśī · Vikram 1878 Jaya · Śaka 1743 Vṛṣa"},"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 January 1, 1821 CE · Vṛndāvana · Vidhyamitra","description":"January 1, 1821 CE for Vṛndāvana: Kṛṣṇa Dvādaśī, sūryodaya 07:10, sūryāsta 17:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1821-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1821-01-01","sa":"https://sa.vidhyamitra.com/city/vrindavan/1821-01-01","hi":"https://hi.vidhyamitra.com/city/vrindavan/1821-01-01","x-default":"https://vidhyamitra.com/city/vrindavan/1821-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-05T05:20:04.113Z","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":"2026-06-05T05:20:04.113Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-05T05:20:04.113Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}