{"id":"vidhyamitra:city-day:vrindavan:1863-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1863-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1863-12-18","date_display":"December 18, 1863 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":1863,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401857.770833,"kali_year":4965,"ahargana":1813392.2708,"sun":{"sidereal_longitude":243.6903,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":338.1292,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.4388,"elapsed_within_tithi_degrees":10.4388},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":338.1292,"elapsed_within_degrees":4.7958},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.8195},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1863,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2401857.770833,"ahargana":1813392.2708,"kali_year":4965,"ayanamsa_lahiri":21.9526,"grahas":{"sun":{"sidereal_longitude":243.71422800000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":340.696128,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false,"latitude":3.8812},"mars":{"sidereal_longitude":220.69052799999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":254.62622800000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":207.99262799999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":198.99282800000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":175.669128,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":217.7508,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":37.7508,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"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":1863,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401857.770833,"kali_year":4965,"ahargana":1813392.2708,"sun":{"sidereal_longitude":243.6903,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":338.1292,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":94.4388,"elapsed_within_tithi_degrees":10.4388},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2,"moon_longitude":338.1292,"elapsed_within_degrees":4.7958},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.8195},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.881,"elongation":94.439},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.881,"opposition_distance":85.561}},"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":"07:05","sunsetLocal":"17:29","solarNoonLocal":"12:17","dayLengthHours":10.401994713492861,"dayLengthDisplay":"10 Hours 24 Mins 07 Secs","nightLengthDisplay":"13 Hours 35 Mins 53 Secs","moonriseLocal":"12:40","moonsetLocal":"00:49","rahuKala":{"name":"Rāhu Kāla","start":"10:59","end":"12:17","startHours":10.976001871677706,"endHours":12.276251210864313,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:53","end":"16:11","startHours":14.87674988923753,"endHours":16.176999228424137,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:23","end":"09:41","startHours":8.37550319330449,"endHours":9.6757525324911,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:51","startHours":9.502385953932883,"endHours":9.849119111049312,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:47","startHours":7.508670300513419,"endHours":7.786056826206562,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:37","startHours":11.929518053747884,"endHours":12.622984367980742,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:41","end":"06:23","startHours":5.688321225652168,"endHours":6.381787539885026,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:13","end":"07:05","startHours":6.208420961326811,"endHours":7.075253854117883,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:42","startHours":14.009916996446456,"endHours":14.703383310679314,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.277248567610744,"endHours":17.677248567610743,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:55","startHours":17.477248567610744,"endHours":17.91066501400628,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.227248567610744,"endHours":18.977248567610744,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:37","startHours":23.929518053747884,"endHours":24.62298436798074,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:05","end":"08:23","startHours":7.075253854117883,"endHours":8.37550319330449,"quality":"neutral"},{"name":"Labha","start":"08:23","end":"09:41","startHours":8.37550319330449,"endHours":9.6757525324911,"quality":"auspicious"},{"name":"Amṛta","start":"09:41","end":"10:59","startHours":9.6757525324911,"endHours":10.976001871677706,"quality":"auspicious"},{"name":"Kāla","start":"10:59","end":"12:17","startHours":10.976001871677706,"endHours":12.276251210864313,"quality":"inauspicious"},{"name":"Śubha","start":"12:17","end":"13:35","startHours":12.276251210864313,"endHours":13.576500550050921,"quality":"auspicious"},{"name":"Roga","start":"13:35","end":"14:53","startHours":13.576500550050921,"endHours":14.87674988923753,"quality":"inauspicious"},{"name":"Udveg","start":"14:53","end":"16:11","startHours":14.87674988923753,"endHours":16.176999228424137,"quality":"inauspicious"},{"name":"Chala","start":"16:11","end":"17:29","startHours":16.176999228424137,"endHours":17.477248567610744,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:29","end":"19:11","startHours":17.477248567610744,"endHours":19.176999228424137,"quality":"inauspicious"},{"name":"Udveg","start":"19:11","end":"20:53","startHours":19.176999228424137,"endHours":20.87674988923753,"quality":"inauspicious"},{"name":"Chala","start":"20:53","end":"22:35","startHours":20.87674988923753,"endHours":22.57650055005092,"quality":"neutral"},{"name":"Labha","start":"22:35","end":"00:17","startHours":22.57650055005092,"endHours":24.276251210864313,"quality":"auspicious"},{"name":"Amṛta","start":"00:17","end":"01:59","startHours":24.276251210864313,"endHours":25.976001871677706,"quality":"auspicious"},{"name":"Kāla","start":"01:59","end":"03:41","startHours":25.976001871677706,"endHours":27.675752532491096,"quality":"inauspicious"},{"name":"Śubha","start":"03:41","end":"05:23","startHours":27.675752532491096,"endHours":29.37550319330449,"quality":"auspicious"},{"name":"Roga","start":"05:23","end":"07:05","startHours":29.37550319330449,"endHours":31.075253854117882,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:05","end":"08:05","startHours":7.075253854117883,"endHours":8.075253854117882,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:05","end":"09:05","startHours":8.075253854117882,"endHours":9.075253854117882,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:05","end":"10:05","startHours":9.075253854117882,"endHours":10.075253854117882,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:05","end":"11:05","startHours":10.075253854117882,"endHours":11.075253854117882,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:05","end":"12:05","startHours":11.075253854117882,"endHours":12.075253854117882,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:05","end":"13:05","startHours":12.075253854117882,"endHours":13.075253854117882,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:05","end":"14:05","startHours":13.075253854117882,"endHours":14.075253854117882,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:05","end":"15:05","startHours":14.075253854117882,"endHours":15.075253854117882,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:05","end":"16:05","startHours":15.075253854117882,"endHours":16.075253854117882,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:05","end":"17:05","startHours":16.075253854117882,"endHours":17.075253854117882,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:05","end":"18:05","startHours":17.075253854117882,"endHours":18.075253854117882,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:05","end":"19:05","startHours":18.075253854117882,"endHours":19.075253854117882,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:05","end":"20:05","startHours":19.075253854117882,"endHours":20.075253854117882,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:05","end":"21:05","startHours":20.075253854117882,"endHours":21.075253854117882,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:05","end":"22:05","startHours":21.075253854117882,"endHours":22.075253854117882,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:05","end":"23:05","startHours":22.075253854117882,"endHours":23.075253854117882,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:05","end":"00:05","startHours":23.075253854117882,"endHours":24.075253854117882,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:05","end":"01:05","startHours":24.075253854117882,"endHours":25.075253854117882,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:05","end":"02:05","startHours":25.075253854117882,"endHours":26.075253854117882,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:05","end":"03:05","startHours":26.075253854117882,"endHours":27.075253854117882,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:05","end":"04:05","startHours":27.075253854117882,"endHours":28.075253854117882,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:05","end":"05:05","startHours":28.075253854117882,"endHours":29.075253854117882,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:05","end":"06:05","startHours":29.075253854117882,"endHours":30.075253854117882,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:05","end":"07:05","startHours":30.075253854117882,"endHours":31.075253854117882,"planetary_lord":"Mars"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.36552261098723,"eotMinutes":2.787727348141232,"ayanamsa":21.9526}},"calendars":{"vikram_samvat":1920,"vikram_samvatsara":"Dhātṛ","saka_samvat":1785,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1270,"malayalam_era":1039,"nanakshahi_year":394,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","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":"Mārgaśīrṣa Śukla Aṣṭamī · Vikram 1920 Dhātṛ · Śaka 1785 Rudhirodgāri"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"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 December 18, 1863 CE · Vṛndāvana · Vidhyamitra","description":"December 18, 1863 CE for Vṛndāvana: Śukla Aṣṭamī, sūryodaya 07:05, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1863-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1863-12-18","sa":"https://sa.vidhyamitra.com/city/vrindavan/1863-12-18","hi":"https://hi.vidhyamitra.com/city/vrindavan/1863-12-18","x-default":"https://vidhyamitra.com/city/vrindavan/1863-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T15:12:22.709Z","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":"2026-06-02T15:12:22.709Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T15:12:22.709Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}