{"id":"vidhyamitra:city-day:vrindavan:2102-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2102-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-04-18","date_display":"April 18, 2102 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":2102,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488906.770833,"kali_year":5203,"ahargana":1900441.2708,"sun":{"sidereal_longitude":2.248,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":10.0904,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.8424,"elapsed_within_tithi_degrees":7.8424},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.0904,"elapsed_within_degrees":10.0904},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.3384},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2102,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488906.770833,"ahargana":1900441.2708,"kali_year":5203,"ayanamsa_lahiri":25.2819,"grahas":{"sun":{"sidereal_longitude":2.360716000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":8.146316000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":4.4801},"mars":{"sidereal_longitude":76.584316,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":17.97321599999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":238.345816,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":319.959016,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":202.130716,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":285.4759,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":105.4759,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2102,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488906.770833,"kali_year":5203,"ahargana":1900441.2708,"sun":{"sidereal_longitude":2.248,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":10.0904,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":7.8424,"elapsed_within_tithi_degrees":7.8424},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":10.0904,"elapsed_within_degrees":10.0904},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.3384},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.48,"elongation":7.842},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.48,"opposition_distance":172.158}},"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":"05:53","sunsetLocal":"18:45","solarNoonLocal":"12:19","dayLengthHours":12.878144019980434,"dayLengthDisplay":"12 Hours 52 Mins 41 Secs","nightLengthDisplay":"11 Hours 07 Mins 19 Secs","moonriseLocal":"06:12","moonsetLocal":"19:12","rahuKala":{"name":"Rāhu Kāla","start":"15:32","end":"17:09","startHours":15.533817956730386,"endHours":17.14358595922794,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:06","end":"10:42","startHours":9.094745946740169,"endHours":10.704513949237723,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:19","end":"13:55","startHours":12.314281951735278,"endHours":13.924049954232832,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:19","startHours":8.880110213073829,"endHours":9.30938168040651,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:45","startHours":6.411799275910912,"endHours":6.755216449777057,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:45","startHours":11.885010484402596,"endHours":12.743553419067958,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:09","end":"05:01","startHours":4.158124072414336,"endHours":5.016667007079699,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:53","startHours":4.802031273413357,"endHours":5.8752099417450605,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:19","startHours":14.460639288398683,"endHours":15.319182223064045,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:33","end":"18:57","startHours":18.553353961725495,"endHours":18.953353961725494,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:45","end":"19:17","startHours":18.753353961725495,"endHours":19.289943295891344,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:30","end":"20:15","startHours":18.503353961725495,"endHours":20.253353961725495,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:45","startHours":23.885010484402592,"endHours":24.743553419067958,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:53","end":"07:29","startHours":5.8752099417450605,"endHours":7.4849779442426145,"quality":"inauspicious"},{"name":"Udveg","start":"07:29","end":"09:06","startHours":7.4849779442426145,"endHours":9.094745946740169,"quality":"inauspicious"},{"name":"Chala","start":"09:06","end":"10:42","startHours":9.094745946740169,"endHours":10.704513949237723,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:19","startHours":10.704513949237723,"endHours":12.314281951735278,"quality":"auspicious"},{"name":"Amṛta","start":"12:19","end":"13:55","startHours":12.314281951735278,"endHours":13.924049954232832,"quality":"auspicious"},{"name":"Kāla","start":"13:55","end":"15:32","startHours":13.924049954232832,"endHours":15.533817956730386,"quality":"inauspicious"},{"name":"Śubha","start":"15:32","end":"17:09","startHours":15.533817956730386,"endHours":17.14358595922794,"quality":"auspicious"},{"name":"Roga","start":"17:09","end":"18:45","startHours":17.14358595922794,"endHours":18.753353961725495,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:45","end":"20:09","startHours":18.753353961725495,"endHours":20.14358595922794,"quality":"inauspicious"},{"name":"Śubha","start":"20:09","end":"21:32","startHours":20.14358595922794,"endHours":21.533817956730385,"quality":"auspicious"},{"name":"Roga","start":"21:32","end":"22:55","startHours":21.533817956730385,"endHours":22.92404995423283,"quality":"inauspicious"},{"name":"Udveg","start":"22:55","end":"00:19","startHours":22.92404995423283,"endHours":24.31428195173528,"quality":"inauspicious"},{"name":"Chala","start":"00:19","end":"01:42","startHours":24.31428195173528,"endHours":25.70451394923772,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:06","startHours":25.70451394923772,"endHours":27.09474594674017,"quality":"auspicious"},{"name":"Amṛta","start":"03:06","end":"04:29","startHours":27.09474594674017,"endHours":28.484977944242615,"quality":"auspicious"},{"name":"Kāla","start":"04:29","end":"05:53","startHours":28.484977944242615,"endHours":29.875209941745062,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.8752099417450605,"endHours":6.8752099417450605,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.8752099417450605,"endHours":7.8752099417450605,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.8752099417450605,"endHours":8.87520994174506,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.87520994174506,"endHours":9.87520994174506,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.87520994174506,"endHours":10.87520994174506,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.87520994174506,"endHours":11.87520994174506,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.87520994174506,"endHours":12.87520994174506,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.87520994174506,"endHours":13.87520994174506,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.87520994174506,"endHours":14.87520994174506,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.87520994174506,"endHours":15.87520994174506,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.87520994174506,"endHours":16.875209941745062,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.875209941745062,"endHours":17.875209941745062,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.875209941745062,"endHours":18.875209941745062,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.875209941745062,"endHours":19.875209941745062,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.875209941745062,"endHours":20.875209941745062,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.875209941745062,"endHours":21.875209941745062,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.875209941745062,"endHours":22.875209941745062,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.875209941745062,"endHours":23.875209941745062,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.875209941745062,"endHours":24.875209941745062,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.875209941745062,"endHours":25.875209941745062,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.875209941745062,"endHours":26.875209941745062,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.875209941745062,"endHours":27.875209941745062,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.875209941745062,"endHours":28.875209941745062,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.875209941745062,"endHours":29.875209941745062,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.633730811513136,"eotMinutes":0.5058828958834352,"ayanamsa":25.2819}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Pratipada · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 April 18, 2102 CE · Vṛndāvana · Vidhyamitra","description":"April 18, 2102 CE for Vṛndāvana: Śukla Pratipada, sūryodaya 05:53, sūryāsta 18:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2102-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2102-04-18","sa":"https://sa.vidhyamitra.com/city/vrindavan/2102-04-18","hi":"https://hi.vidhyamitra.com/city/vrindavan/2102-04-18","x-default":"https://vidhyamitra.com/city/vrindavan/2102-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T19:00:49.399Z","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":"2026-05-31T19:00:49.399Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T19:00:49.399Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}