{"id":"vidhyamitra:city-day:mauritius:1981-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mauritius/1981-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-05-12","date_display":"May 12, 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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444736.770833,"kali_year":5083,"ahargana":1856271.2708,"sun":{"sidereal_longitude":27.6892,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":127.7799,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.0907,"elapsed_within_tithi_degrees":4.0907},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.7799,"elapsed_within_degrees":7.7799},"yoga":{"number":12,"name":"Dhruva","sum_longitude":155.4692},"karana":{"half_tithi_index":16,"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":1981,"month":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444736.770833,"ahargana":1856271.2708,"kali_year":5083,"ayanamsa_lahiri":23.5926,"grahas":{"sun":{"sidereal_longitude":27.646335000000022,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":130.56523500000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":1.6817},"mars":{"sidereal_longitude":19.09973500000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":43.712334999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":157.38263499999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":36.953835000000026,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":159.65213500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":105.8151,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":285.8151,"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":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444736.770833,"kali_year":5083,"ahargana":1856271.2708,"sun":{"sidereal_longitude":27.6892,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":127.7799,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":100.0907,"elapsed_within_tithi_degrees":4.0907},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.7799,"elapsed_within_degrees":7.7799},"yoga":{"number":12,"name":"Dhruva","sum_longitude":155.4692},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.682,"elongation":100.091},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.682,"opposition_distance":79.909}},"eclipse_window_40days":[]},"city":{"slug":"mauritius","name":"Port Louis, Mauritius","lat":-20.1609,"lon":57.5012,"tz_offset_hours":4,"country":"MU","tier":"diaspora"},"tier2":{"city":{"slug":"mauritius","name":"Port Louis, Mauritius","lat":-20.1609,"lon":57.5012,"tz_offset_hours":4,"country":"MU","tier":"diaspora"},"sunriseLocal":"06:30","sunsetLocal":"17:42","solarNoonLocal":"12:06","dayLengthHours":11.208025134278735,"dayLengthDisplay":"11 Hours 12 Mins 29 Secs","nightLengthDisplay":"12 Hours 47 Mins 31 Secs","moonriseLocal":"13:10","moonsetLocal":"00:46","rahuKala":{"name":"Rāhu Kāla","start":"14:54","end":"16:18","startHours":14.90629995557521,"endHours":16.30730309736005,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:18","end":"10:42","startHours":9.302287388435843,"endHours":10.703290530220684,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:06","end":"13:30","startHours":12.104293672005525,"endHours":13.505296813790368,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:07","end":"09:29","startHours":9.115486969531197,"endHours":9.489087807340487,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:16","startHours":6.967282152127773,"endHours":7.266162822375206,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:29","startHours":11.730692834196233,"endHours":12.477894509814817,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:00","end":"05:45","startHours":5.005877753628994,"endHours":5.753079429247577,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:34","end":"06:30","startHours":5.566279010342931,"endHours":6.500281104866159,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:43","startHours":13.972297861051981,"endHours":14.719499536670563,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:30","end":"17:54","startHours":17.508306239144893,"endHours":17.908306239144892,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:42","end":"18:11","startHours":17.708306239144893,"endHours":18.175307286406508,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:27","end":"19:12","startHours":17.458306239144893,"endHours":19.208306239144893,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:29","startHours":23.730692834196233,"endHours":24.477894509814817,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:30","end":"07:54","startHours":6.500281104866159,"endHours":7.9012842466510005,"quality":"inauspicious"},{"name":"Udveg","start":"07:54","end":"09:18","startHours":7.9012842466510005,"endHours":9.302287388435843,"quality":"inauspicious"},{"name":"Chala","start":"09:18","end":"10:42","startHours":9.302287388435843,"endHours":10.703290530220684,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:06","startHours":10.703290530220684,"endHours":12.104293672005525,"quality":"auspicious"},{"name":"Amṛta","start":"12:06","end":"13:30","startHours":12.104293672005525,"endHours":13.505296813790368,"quality":"auspicious"},{"name":"Kāla","start":"13:30","end":"14:54","startHours":13.505296813790368,"endHours":14.90629995557521,"quality":"inauspicious"},{"name":"Śubha","start":"14:54","end":"16:18","startHours":14.90629995557521,"endHours":16.30730309736005,"quality":"auspicious"},{"name":"Roga","start":"16:18","end":"17:42","startHours":16.30730309736005,"endHours":17.708306239144893,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:42","end":"19:18","startHours":17.708306239144893,"endHours":19.30730309736005,"quality":"inauspicious"},{"name":"Śubha","start":"19:18","end":"20:54","startHours":19.30730309736005,"endHours":20.906299955575207,"quality":"auspicious"},{"name":"Roga","start":"20:54","end":"22:30","startHours":20.906299955575207,"endHours":22.505296813790366,"quality":"inauspicious"},{"name":"Udveg","start":"22:30","end":"00:06","startHours":22.505296813790366,"endHours":24.104293672005525,"quality":"inauspicious"},{"name":"Chala","start":"00:06","end":"01:42","startHours":24.104293672005525,"endHours":25.703290530220684,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"03:18","startHours":25.703290530220684,"endHours":27.302287388435843,"quality":"auspicious"},{"name":"Amṛta","start":"03:18","end":"04:54","startHours":27.302287388435843,"endHours":28.901284246651,"quality":"auspicious"},{"name":"Kāla","start":"04:54","end":"06:30","startHours":28.901284246651,"endHours":30.500281104866158,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.500281104866159,"endHours":7.500281104866159,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.500281104866159,"endHours":8.500281104866158,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.500281104866158,"endHours":9.500281104866158,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.500281104866158,"endHours":10.500281104866158,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.500281104866158,"endHours":11.500281104866158,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.500281104866158,"endHours":12.500281104866158,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.500281104866158,"endHours":13.500281104866158,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.500281104866158,"endHours":14.500281104866158,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.500281104866158,"endHours":15.500281104866158,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.500281104866158,"endHours":16.500281104866158,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.500281104866158,"endHours":17.500281104866158,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.500281104866158,"endHours":18.500281104866158,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.500281104866158,"endHours":19.500281104866158,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.500281104866158,"endHours":20.500281104866158,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.500281104866158,"endHours":21.500281104866158,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.500281104866158,"endHours":22.500281104866158,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.500281104866158,"endHours":23.500281104866158,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.500281104866158,"endHours":24.500281104866158,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.500281104866158,"endHours":25.500281104866158,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.500281104866158,"endHours":26.500281104866158,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.500281104866158,"endHours":27.500281104866158,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.500281104866158,"endHours":28.500281104866158,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.500281104866158,"endHours":29.500281104866158,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.500281104866158,"endHours":30.500281104866158,"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.067504517602455,"eotMinutes":3.7375796796685163,"ayanamsa":23.5926}},"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 Navamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"sita-navami","name":"Sītā Navamī","name_sanskrit":"सीता नवमी","tradition":"Vaishnava","associated_deity":"Sītā Devī (Lakṣmī as Bhū-suta)","significance":"Devī Sītā's manifestation in Mithilā; rāmāvatāra-kalatra.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 66"]},{"id":"madhva-jayanti","name":"Madhvācārya Jayantī","name_sanskrit":"मध्वाचार्य जयन्ती","tradition":"Vaishnava","associated_deity":"Madhvācārya (Dvaita)","significance":"Birth of Madhvācārya; Dvaita-pratiṣṭhāpaka. Vaiśākha Śukla 9.","vrata":false,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"mauritius"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 12, 1981 CE · Port Louis, Mauritius · Vidhyamitra","description":"May 12, 1981 CE for Port Louis, Mauritius: Śukla Navamī, sūryodaya 06:30, sūryāsta 17:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mauritius/1981-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mauritius/1981-05-12","sa":"https://sa.vidhyamitra.com/city/mauritius/1981-05-12","hi":"https://hi.vidhyamitra.com/city/mauritius/1981-05-12","x-default":"https://vidhyamitra.com/city/mauritius/1981-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T18:57:03.538Z","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":"2026-06-01T18:57:03.538Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T18:57:03.538Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}