{"id":"vidhyamitra:city-day:vrindavan:2131-01-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2131-01-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-01-17","date_display":"January 17, 2131 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":2131,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499407.770833,"kali_year":5232,"ahargana":1910942.2708,"sun":{"sidereal_longitude":270.321,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":133.6874,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":223.3664,"elapsed_within_tithi_degrees":7.3664},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":133.6874,"elapsed_within_degrees":0.354},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":44.0083},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2131,"month":1,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499407.770833,"ahargana":1910942.2708,"kali_year":5232,"ayanamsa_lahiri":25.6836,"grahas":{"sun":{"sidereal_longitude":270.743201,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":131.808601,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":3.1583},"mars":{"sidereal_longitude":226.323401,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":262.404401,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":18.424101000000007,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":226.39740099999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":197.668501,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":89.0824,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":269.0824,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2131,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499407.770833,"kali_year":5232,"ahargana":1910942.2708,"sun":{"sidereal_longitude":270.321,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":133.6874,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":223.3664,"elapsed_within_tithi_degrees":7.3664},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":133.6874,"elapsed_within_degrees":0.354},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":44.0083},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.158,"elongation":136.634},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.158,"opposition_distance":43.366}},"eclipse_window_40days":[{"offset_days":12,"type":"solar","occurs":true,"moon_latitude":-0.919,"elongation":2.391}]},"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":"07:11","sunsetLocal":"17:48","solarNoonLocal":"12:29","dayLengthHours":10.606315855958194,"dayLengthDisplay":"10 Hours 36 Mins 23 Secs","nightLengthDisplay":"13 Hours 23 Mins 37 Secs","moonriseLocal":"20:53","moonsetLocal":"09:35","rahuKala":{"name":"Rāhu Kāla","start":"12:29","end":"13:49","startHours":12.489814812435146,"endHours":13.815604294429919,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:31","end":"09:50","startHours":8.512446366450822,"endHours":9.838235848445596,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:10","end":"12:29","startHours":11.16402533044037,"endHours":12.489814812435146,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.661463917512961,"endHours":10.015007779378234,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:55","startHours":7.62858671178764,"endHours":7.911421801279858,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:51","startHours":12.136270950569873,"endHours":12.843358674300418,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:29","startHours":5.772481436994956,"endHours":6.479569160725502,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:18","end":"07:11","startHours":6.302797229792866,"endHours":7.186656884456048,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"14:58","startHours":14.25753412176151,"endHours":14.964621845492058,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:36","end":"18:00","startHours":17.592972740414243,"endHours":17.992972740414242,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:48","end":"18:14","startHours":17.792972740414243,"endHours":18.234902567745834,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:33","end":"19:18","startHours":17.542972740414243,"endHours":19.292972740414243,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:51","startHours":24.136270950569873,"endHours":24.84335867430042,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:11","end":"08:31","startHours":7.186656884456048,"endHours":8.512446366450822,"quality":"auspicious"},{"name":"Amṛta","start":"08:31","end":"09:50","startHours":8.512446366450822,"endHours":9.838235848445596,"quality":"auspicious"},{"name":"Kāla","start":"09:50","end":"11:10","startHours":9.838235848445596,"endHours":11.16402533044037,"quality":"inauspicious"},{"name":"Śubha","start":"11:10","end":"12:29","startHours":11.16402533044037,"endHours":12.489814812435146,"quality":"auspicious"},{"name":"Roga","start":"12:29","end":"13:49","startHours":12.489814812435146,"endHours":13.815604294429919,"quality":"inauspicious"},{"name":"Udveg","start":"13:49","end":"15:08","startHours":13.815604294429919,"endHours":15.141393776424692,"quality":"inauspicious"},{"name":"Chala","start":"15:08","end":"16:28","startHours":15.141393776424692,"endHours":16.467183258419468,"quality":"neutral"},{"name":"Labha","start":"16:28","end":"17:48","startHours":16.467183258419468,"endHours":17.792972740414243,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:48","end":"19:28","startHours":17.792972740414243,"endHours":19.467183258419468,"quality":"inauspicious"},{"name":"Chala","start":"19:28","end":"21:08","startHours":19.467183258419468,"endHours":21.141393776424692,"quality":"neutral"},{"name":"Labha","start":"21:08","end":"22:49","startHours":21.141393776424692,"endHours":22.81560429442992,"quality":"auspicious"},{"name":"Amṛta","start":"22:49","end":"00:29","startHours":22.81560429442992,"endHours":24.489814812435146,"quality":"auspicious"},{"name":"Kāla","start":"00:29","end":"02:10","startHours":24.489814812435146,"endHours":26.16402533044037,"quality":"inauspicious"},{"name":"Śubha","start":"02:10","end":"03:50","startHours":26.16402533044037,"endHours":27.8382358484456,"quality":"auspicious"},{"name":"Roga","start":"03:50","end":"05:31","startHours":27.8382358484456,"endHours":29.512446366450824,"quality":"inauspicious"},{"name":"Udveg","start":"05:31","end":"07:11","startHours":29.512446366450824,"endHours":31.18665688445605,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:11","end":"08:11","startHours":7.186656884456048,"endHours":8.186656884456049,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:11","end":"09:11","startHours":8.186656884456049,"endHours":9.186656884456049,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:11","end":"10:11","startHours":9.186656884456049,"endHours":10.186656884456049,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:11","end":"11:11","startHours":10.186656884456049,"endHours":11.186656884456049,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:11","end":"12:11","startHours":11.186656884456049,"endHours":12.186656884456049,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:11","end":"13:11","startHours":12.186656884456049,"endHours":13.186656884456049,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:11","end":"14:11","startHours":13.186656884456049,"endHours":14.186656884456049,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:11","end":"15:11","startHours":14.186656884456049,"endHours":15.186656884456049,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:11","end":"16:11","startHours":15.186656884456049,"endHours":16.18665688445605,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:11","end":"17:11","startHours":16.18665688445605,"endHours":17.18665688445605,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:11","end":"18:11","startHours":17.18665688445605,"endHours":18.18665688445605,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:11","end":"19:11","startHours":18.18665688445605,"endHours":19.18665688445605,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:11","end":"20:11","startHours":19.18665688445605,"endHours":20.18665688445605,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:11","end":"21:11","startHours":20.18665688445605,"endHours":21.18665688445605,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:11","end":"22:11","startHours":21.18665688445605,"endHours":22.18665688445605,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:11","end":"23:11","startHours":22.18665688445605,"endHours":23.18665688445605,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:11","end":"00:11","startHours":23.18665688445605,"endHours":24.18665688445605,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:11","end":"01:11","startHours":24.18665688445605,"endHours":25.18665688445605,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:11","end":"02:11","startHours":25.18665688445605,"endHours":26.18665688445605,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:11","end":"03:11","startHours":26.18665688445605,"endHours":27.18665688445605,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:11","end":"04:11","startHours":27.18665688445605,"endHours":28.18665688445605,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:11","end":"05:11","startHours":28.18665688445605,"endHours":29.18665688445605,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:11","end":"06:11","startHours":29.18665688445605,"endHours":30.18665688445605,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:11","end":"07:11","startHours":30.18665688445605,"endHours":31.18665688445605,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.865222074173516,"eotMinutes":-10.026088746108654,"ayanamsa":25.6836}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturthī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 17, 2131 CE · Vṛndāvana · Vidhyamitra","description":"January 17, 2131 CE for Vṛndāvana: Kṛṣṇa Caturthī, sūryodaya 07:11, sūryāsta 17:48.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2131-01-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2131-01-17","sa":"https://sa.vidhyamitra.com/city/vrindavan/2131-01-17","hi":"https://hi.vidhyamitra.com/city/vrindavan/2131-01-17","x-default":"https://vidhyamitra.com/city/vrindavan/2131-01-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:58:06.602Z","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":"2026-05-30T23:58:06.602Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:58:06.602Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}