{"id":"vidhyamitra:city-day:vellore:2025-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vellore/2025-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2025-05-13","date_display":"May 13, 2025 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":2025,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460808.770833,"kali_year":5127,"ahargana":1872343.2708,"sun":{"sidereal_longitude":28.2791,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":213.1286,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":184.8495,"elapsed_within_tithi_degrees":4.8495},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":213.1286,"elapsed_within_degrees":13.1286},"yoga":{"number":19,"name":"Parigha","sum_longitude":241.4077},"karana":{"half_tithi_index":30,"name":"Bālava"},"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":2025,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460808.770833,"ahargana":1872343.2708,"kali_year":5127,"ayanamsa_lahiri":24.2073,"grahas":{"sun":{"sidereal_longitude":28.342866000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":212.04326600000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":-3.8516},"mars":{"sidereal_longitude":106.71576600000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":9.624066000000028,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":59.58496600000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":343.739866,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":334.88096599999994,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":334.2432,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":154.2432,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"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":2025,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460808.770833,"kali_year":5127,"ahargana":1872343.2708,"sun":{"sidereal_longitude":28.2791,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":213.1286,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":184.8495,"elapsed_within_tithi_degrees":4.8495},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":213.1286,"elapsed_within_degrees":13.1286},"yoga":{"number":19,"name":"Parigha","sum_longitude":241.4077},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.852,"elongation":175.151},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.852,"opposition_distance":4.849}},"eclipse_window_40days":[]},"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"vellore","name":"Vellore, Tamil Nadu","lat":12.9165,"lon":79.1325,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"05:49","sunsetLocal":"18:31","solarNoonLocal":"12:10","dayLengthHours":12.704108100881065,"dayLengthDisplay":"12 Hours 42 Mins 15 Secs","nightLengthDisplay":"11 Hours 17 Mins 45 Secs","moonriseLocal":"18:40","moonsetLocal":"06:09","rahuKala":{"name":"Rāhu Kāla","start":"15:20","end":"16:56","startHours":15.337969712827661,"endHours":16.925983225437793,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:59","end":"10:34","startHours":8.985915662387129,"endHours":10.57392917499726,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:10","end":"13:45","startHours":12.161942687607393,"endHours":13.749956200217527,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:12","startHours":8.774180527372444,"endHours":9.197650797401812,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:20","end":"06:41","startHours":6.3392264747035725,"endHours":6.678002690727068,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:35","startHours":11.738472417578024,"endHours":12.585412957636763,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:07","end":"04:58","startHours":4.116007557049386,"endHours":4.962948097108124,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:45","end":"05:49","startHours":4.751212962093439,"endHours":5.809888637166861,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:08","startHours":14.279294037754237,"endHours":15.126234577812975,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:19","end":"18:43","startHours":18.313996738047926,"endHours":18.713996738047925,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:31","end":"19:03","startHours":18.513996738047926,"endHours":19.043334575584637,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:16","end":"20:01","startHours":18.263996738047926,"endHours":20.013996738047926,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:35","startHours":23.738472417578024,"endHours":24.585412957636763,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:49","end":"07:24","startHours":5.809888637166861,"endHours":7.397902149776995,"quality":"inauspicious"},{"name":"Udveg","start":"07:24","end":"08:59","startHours":7.397902149776995,"endHours":8.985915662387129,"quality":"inauspicious"},{"name":"Chala","start":"08:59","end":"10:34","startHours":8.985915662387129,"endHours":10.57392917499726,"quality":"neutral"},{"name":"Labha","start":"10:34","end":"12:10","startHours":10.57392917499726,"endHours":12.161942687607393,"quality":"auspicious"},{"name":"Amṛta","start":"12:10","end":"13:45","startHours":12.161942687607393,"endHours":13.749956200217527,"quality":"auspicious"},{"name":"Kāla","start":"13:45","end":"15:20","startHours":13.749956200217527,"endHours":15.337969712827661,"quality":"inauspicious"},{"name":"Śubha","start":"15:20","end":"16:56","startHours":15.337969712827661,"endHours":16.925983225437793,"quality":"auspicious"},{"name":"Roga","start":"16:56","end":"18:31","startHours":16.925983225437793,"endHours":18.513996738047926,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:31","end":"19:56","startHours":18.513996738047926,"endHours":19.925983225437793,"quality":"inauspicious"},{"name":"Śubha","start":"19:56","end":"21:20","startHours":19.925983225437793,"endHours":21.337969712827658,"quality":"auspicious"},{"name":"Roga","start":"21:20","end":"22:45","startHours":21.337969712827658,"endHours":22.749956200217525,"quality":"inauspicious"},{"name":"Udveg","start":"22:45","end":"00:10","startHours":22.749956200217525,"endHours":24.161942687607393,"quality":"inauspicious"},{"name":"Chala","start":"00:10","end":"01:34","startHours":24.161942687607393,"endHours":25.57392917499726,"quality":"neutral"},{"name":"Labha","start":"01:34","end":"02:59","startHours":25.57392917499726,"endHours":26.98591566238713,"quality":"auspicious"},{"name":"Amṛta","start":"02:59","end":"04:24","startHours":26.98591566238713,"endHours":28.397902149776993,"quality":"auspicious"},{"name":"Kāla","start":"04:24","end":"05:49","startHours":28.397902149776993,"endHours":29.80988863716686,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:49","end":"06:49","startHours":5.809888637166861,"endHours":6.809888637166861,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:49","end":"07:49","startHours":6.809888637166861,"endHours":7.809888637166861,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:49","end":"08:49","startHours":7.809888637166861,"endHours":8.80988863716686,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:49","end":"09:49","startHours":8.80988863716686,"endHours":9.80988863716686,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:49","end":"10:49","startHours":9.80988863716686,"endHours":10.80988863716686,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:49","end":"11:49","startHours":10.80988863716686,"endHours":11.80988863716686,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:49","end":"12:49","startHours":11.80988863716686,"endHours":12.80988863716686,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:49","end":"13:49","startHours":12.80988863716686,"endHours":13.80988863716686,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:49","end":"14:49","startHours":13.80988863716686,"endHours":14.80988863716686,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:49","end":"15:49","startHours":14.80988863716686,"endHours":15.80988863716686,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:49","end":"16:49","startHours":15.80988863716686,"endHours":16.80988863716686,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:49","end":"17:49","startHours":16.80988863716686,"endHours":17.80988863716686,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:49","end":"18:49","startHours":17.80988863716686,"endHours":18.80988863716686,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:49","end":"19:49","startHours":18.80988863716686,"endHours":19.80988863716686,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:49","end":"20:49","startHours":19.80988863716686,"endHours":20.80988863716686,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:49","end":"21:49","startHours":20.80988863716686,"endHours":21.80988863716686,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:49","end":"22:49","startHours":21.80988863716686,"endHours":22.80988863716686,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:49","end":"23:49","startHours":22.80988863716686,"endHours":23.80988863716686,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:49","end":"00:49","startHours":23.80988863716686,"endHours":24.80988863716686,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:49","end":"01:49","startHours":24.80988863716686,"endHours":25.80988863716686,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:49","end":"02:49","startHours":25.80988863716686,"endHours":26.80988863716686,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:49","end":"03:49","startHours":26.80988863716686,"endHours":27.80988863716686,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:49","end":"04:49","startHours":27.80988863716686,"endHours":28.80988863716686,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:49","end":"05:49","startHours":28.80988863716686,"endHours":29.80988863716686,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva 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":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.406353194910817,"eotMinutes":3.7534387435564067,"ayanamsa":24.2073}},"calendars":{"vikram_samvat":2082,"vikram_samvatsara":"Kālayukta","saka_samvat":1947,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1432,"malayalam_era":1201,"nanakshahi_year":556,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pratipada · Vikram 2082 Kālayukta · Śaka 1947 Viśvāvasu"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"narada-jayanti","name":"Bhagavān Nārada Jayantī","name_sanskrit":"भगवान् नारद जयन्ती","tradition":"Vaishnava","associated_deity":"Devarṣi Nārada (ādi-bhakta · Vyāsa's guru)","significance":"Manifestation of Devarṣi Nārada — ādi-bhakta and tri-loka-saṅcāri who instructed Vyāsa to compose Śrīmad Bhāgavata. Without Nārada, no Bhāgavata; without Bhāgavata, no Krishna-tattva-pratiṣṭhā in Kali Yuga. Falls on Vaiśākha Kṛṣṇa Pratipadā (day after Buddha Pūrṇimā).","vrata":true,"primary_observance":"Recitation of Nārada-Bhakti-Sūtra; meditation on Krishna as taught by Nārada to Vyāsa (Bhāgavata 1.5)","detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Vaiśākha"},"precedence":1,"sources":["Bhāgavata Purāṇa 1.5-6 (Nārada-Vyāsa-saṁvāda)","Nārada-Bhakti-Sūtra"]},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"vellore"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 13, 2025 CE · Vellore, Tamil Nadu · Vidhyamitra","description":"May 13, 2025 CE for Vellore, Tamil Nadu: Kṛṣṇa Pratipada, sūryodaya 05:49, sūryāsta 18:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vellore/2025-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vellore/2025-05-13","sa":"https://sa.vidhyamitra.com/city/vellore/2025-05-13","hi":"https://hi.vidhyamitra.com/city/vellore/2025-05-13","x-default":"https://vidhyamitra.com/city/vellore/2025-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T14:51:04.822Z","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":"2026-05-14T14:51:04.822Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T14:51:04.822Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}