{"id":"vidhyamitra:city-day:vellore:1981-05-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vellore/1981-05-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-05-05","date_display":"May 5, 1981 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":1981,"month":5,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444729.770833,"kali_year":5083,"ahargana":1856264.2708,"sun":{"sidereal_longitude":20.9587,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":32.2804,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":11.3217,"elapsed_within_tithi_degrees":11.3217},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.2804,"elapsed_within_degrees":5.6137},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":53.2391},"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":1981,"month":5,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444729.770833,"ahargana":1856264.2708,"kali_year":5083,"ayanamsa_lahiri":23.5923,"grahas":{"sun":{"sidereal_longitude":20.876401999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":33.250202,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":-4.3233},"mars":{"sidereal_longitude":13.925101999999981,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":29.68940200000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":157.77120200000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":28.338101999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":159.96710200000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":106.186,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":286.186,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"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":1981,"month":5,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444729.770833,"kali_year":5083,"ahargana":1856264.2708,"sun":{"sidereal_longitude":20.9587,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":32.2804,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":11.3217,"elapsed_within_tithi_degrees":11.3217},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.2804,"elapsed_within_degrees":5.6137},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":53.2391},"karana":{"half_tithi_index":1,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.323,"elongation":11.322},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.323,"opposition_distance":168.678}},"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":"05:51","sunsetLocal":"18:29","solarNoonLocal":"12:10","dayLengthHours":12.627611789765446,"dayLengthDisplay":"12 Hours 37 Mins 39 Secs","nightLengthDisplay":"11 Hours 22 Mins 21 Secs","moonriseLocal":"06:38","moonsetLocal":"19:21","rahuKala":{"name":"Rāhu Kāla","start":"15:20","end":"16:54","startHours":15.325525884200317,"endHours":16.903977357921,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:01","end":"10:35","startHours":9.011719989317594,"endHours":10.590171463038276,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:10","end":"13:45","startHours":12.168622936758958,"endHours":13.747074410479637,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:13","startHours":8.801259792821504,"endHours":9.222180185813686,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:23","end":"06:43","startHours":6.38096753311646,"endHours":6.717703847510205,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:45","end":"12:35","startHours":11.747702543766776,"endHours":12.58954332975114,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:01","startHours":4.171135469907508,"endHours":5.0129762558918705,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:51","startHours":4.80251605939578,"endHours":5.854817041876234,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:16","end":"15:07","startHours":14.273224901719864,"endHours":15.115065687704227,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.28242883164168,"endHours":18.68242883164168,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:01","startHours":18.48242883164168,"endHours":19.008579322881907,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.23242883164168,"endHours":19.98242883164168,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:45","end":"00:35","startHours":23.747702543766778,"endHours":24.589543329751137,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:51","end":"07:26","startHours":5.854817041876234,"endHours":7.4332685155969145,"quality":"inauspicious"},{"name":"Udveg","start":"07:26","end":"09:01","startHours":7.4332685155969145,"endHours":9.011719989317594,"quality":"inauspicious"},{"name":"Chala","start":"09:01","end":"10:35","startHours":9.011719989317594,"endHours":10.590171463038276,"quality":"neutral"},{"name":"Labha","start":"10:35","end":"12:10","startHours":10.590171463038276,"endHours":12.168622936758958,"quality":"auspicious"},{"name":"Amṛta","start":"12:10","end":"13:45","startHours":12.168622936758958,"endHours":13.747074410479637,"quality":"auspicious"},{"name":"Kāla","start":"13:45","end":"15:20","startHours":13.747074410479637,"endHours":15.325525884200317,"quality":"inauspicious"},{"name":"Śubha","start":"15:20","end":"16:54","startHours":15.325525884200317,"endHours":16.903977357921,"quality":"auspicious"},{"name":"Roga","start":"16:54","end":"18:29","startHours":16.903977357921,"endHours":18.48242883164168,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:29","end":"19:54","startHours":18.48242883164168,"endHours":19.903977357921,"quality":"inauspicious"},{"name":"Śubha","start":"19:54","end":"21:20","startHours":19.903977357921,"endHours":21.325525884200317,"quality":"auspicious"},{"name":"Roga","start":"21:20","end":"22:45","startHours":21.325525884200317,"endHours":22.747074410479637,"quality":"inauspicious"},{"name":"Udveg","start":"22:45","end":"00:10","startHours":22.747074410479637,"endHours":24.168622936758958,"quality":"inauspicious"},{"name":"Chala","start":"00:10","end":"01:35","startHours":24.168622936758958,"endHours":25.590171463038278,"quality":"neutral"},{"name":"Labha","start":"01:35","end":"03:01","startHours":25.590171463038278,"endHours":27.011719989317598,"quality":"auspicious"},{"name":"Amṛta","start":"03:01","end":"04:26","startHours":27.011719989317598,"endHours":28.433268515596914,"quality":"auspicious"},{"name":"Kāla","start":"04:26","end":"05:51","startHours":28.433268515596914,"endHours":29.854817041876235,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:51","end":"06:51","startHours":5.854817041876234,"endHours":6.854817041876234,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:51","end":"07:51","startHours":6.854817041876234,"endHours":7.854817041876234,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:51","end":"08:51","startHours":7.854817041876234,"endHours":8.854817041876235,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:51","end":"09:51","startHours":8.854817041876235,"endHours":9.854817041876235,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:51","end":"10:51","startHours":9.854817041876235,"endHours":10.854817041876235,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:51","end":"11:51","startHours":10.854817041876235,"endHours":11.854817041876235,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:51","end":"12:51","startHours":11.854817041876235,"endHours":12.854817041876235,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:51","end":"13:51","startHours":12.854817041876235,"endHours":13.854817041876235,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:51","end":"14:51","startHours":13.854817041876235,"endHours":14.854817041876235,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:51","end":"15:51","startHours":14.854817041876235,"endHours":15.854817041876235,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:51","end":"16:51","startHours":15.854817041876235,"endHours":16.854817041876235,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:51","end":"17:51","startHours":16.854817041876235,"endHours":17.854817041876235,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:51","end":"18:51","startHours":17.854817041876235,"endHours":18.854817041876235,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:51","end":"19:51","startHours":18.854817041876235,"endHours":19.854817041876235,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:51","end":"20:51","startHours":19.854817041876235,"endHours":20.854817041876235,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:51","end":"21:51","startHours":20.854817041876235,"endHours":21.854817041876235,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:51","end":"22:51","startHours":21.854817041876235,"endHours":22.854817041876235,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:51","end":"23:51","startHours":22.854817041876235,"endHours":23.854817041876235,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:51","end":"00:51","startHours":23.854817041876235,"endHours":24.854817041876235,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:51","end":"01:51","startHours":24.854817041876235,"endHours":25.854817041876235,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:51","end":"02:51","startHours":25.854817041876235,"endHours":26.854817041876235,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:51","end":"03:51","startHours":26.854817041876235,"endHours":27.854817041876235,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:51","end":"04:51","startHours":27.854817041876235,"endHours":28.854817041876235,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:51","end":"05:51","startHours":28.854817041876235,"endHours":29.854817041876235,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":16.177821224124838,"eotMinutes":3.3526237944626183,"ayanamsa":23.5923}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"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 2038 Bhāva · Śaka 1903 Durmati"},"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 5, 1981 CE · Vellore, Tamil Nadu · Vidhyamitra","description":"May 5, 1981 CE for Vellore, Tamil Nadu: Śukla Pratipada, sūryodaya 05:51, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vellore/1981-05-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vellore/1981-05-05","sa":"https://sa.vidhyamitra.com/city/vellore/1981-05-05","hi":"https://hi.vidhyamitra.com/city/vellore/1981-05-05","x-default":"https://vidhyamitra.com/city/vellore/1981-05-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T03:23:23.740Z","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":"2026-06-02T03:23:23.740Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T03:23:23.740Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}