{"id":"vidhyamitra:city-day:mauritius:1981-01-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mauritius/1981-01-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-11","date_display":"January 11, 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":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444615.770833,"kali_year":5082,"ahargana":1856150.2708,"sun":{"sidereal_longitude":267.0477,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":326.0598,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":59.012,"elapsed_within_tithi_degrees":11.012},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":326.0598,"elapsed_within_degrees":6.0598},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.1075},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444615.770833,"ahargana":1856150.2708,"kali_year":5082,"ayanamsa_lahiri":23.588,"grahas":{"sun":{"sidereal_longitude":267.146658,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":326.056458,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false,"latitude":-2.5037},"mars":{"sidereal_longitude":285.46125800000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":274.026658,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":166.54815800000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":246.379858,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.90645800000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":112.2262,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":292.2262,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":1,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444615.770833,"kali_year":5082,"ahargana":1856150.2708,"sun":{"sidereal_longitude":267.0477,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":326.0598,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":59.012,"elapsed_within_tithi_degrees":11.012},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":326.0598,"elapsed_within_degrees":6.0598},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.1075},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.504,"elongation":59.012},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.504,"opposition_distance":120.988}},"eclipse_window_40days":[{"offset_days":9,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776}]},"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":"05:40","sunsetLocal":"18:56","solarNoonLocal":"12:18","dayLengthHours":13.257098137952001,"dayLengthDisplay":"13 Hours 15 Mins 26 Secs","nightLengthDisplay":"10 Hours 44 Mins 34 Secs","moonriseLocal":"10:05","moonsetLocal":"22:22","rahuKala":{"name":"Rāhu Kāla","start":"17:16","end":"18:56","startHours":17.269440172314777,"endHours":18.926577439558777,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:18","end":"13:57","startHours":12.298028370582777,"endHours":13.955165637826777,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:37","end":"17:16","startHours":15.612302905070777,"endHours":17.269440172314777,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:12","startHours":8.762802200462243,"endHours":9.204705471727308,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:13","end":"06:35","startHours":6.2218583906881095,"endHours":6.575381007700162,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:44","startHours":11.85612509931771,"endHours":12.739931641847845,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:54","end":"04:47","startHours":3.9018662165465092,"endHours":4.785672759076642,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:40","startHours":4.564721123444109,"endHours":5.669479301606776,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:23","startHours":14.50754472690811,"endHours":15.391351269438243,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.726577439558778,"endHours":19.126577439558776,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:29","startHours":18.926577439558777,"endHours":19.47895652864011,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.676577439558777,"endHours":20.426577439558777,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:44","startHours":23.856125099317712,"endHours":24.739931641847843,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:40","end":"07:20","startHours":5.669479301606776,"endHours":7.326616568850776,"quality":"inauspicious"},{"name":"Chala","start":"07:20","end":"08:59","startHours":7.326616568850776,"endHours":8.983753836094776,"quality":"neutral"},{"name":"Labha","start":"08:59","end":"10:38","startHours":8.983753836094776,"endHours":10.640891103338777,"quality":"auspicious"},{"name":"Amṛta","start":"10:38","end":"12:18","startHours":10.640891103338777,"endHours":12.298028370582777,"quality":"auspicious"},{"name":"Kāla","start":"12:18","end":"13:57","startHours":12.298028370582777,"endHours":13.955165637826777,"quality":"inauspicious"},{"name":"Śubha","start":"13:57","end":"15:37","startHours":13.955165637826777,"endHours":15.612302905070777,"quality":"auspicious"},{"name":"Roga","start":"15:37","end":"17:16","startHours":15.612302905070777,"endHours":17.269440172314777,"quality":"inauspicious"},{"name":"Udveg","start":"17:16","end":"18:56","startHours":17.269440172314777,"endHours":18.926577439558777,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:56","end":"20:16","startHours":18.926577439558777,"endHours":20.269440172314777,"quality":"auspicious"},{"name":"Roga","start":"20:16","end":"21:37","startHours":20.269440172314777,"endHours":21.612302905070777,"quality":"inauspicious"},{"name":"Udveg","start":"21:37","end":"22:57","startHours":21.612302905070777,"endHours":22.955165637826777,"quality":"inauspicious"},{"name":"Chala","start":"22:57","end":"00:18","startHours":22.955165637826777,"endHours":24.298028370582777,"quality":"neutral"},{"name":"Labha","start":"00:18","end":"01:38","startHours":24.298028370582777,"endHours":25.640891103338777,"quality":"auspicious"},{"name":"Amṛta","start":"01:38","end":"02:59","startHours":25.640891103338777,"endHours":26.983753836094778,"quality":"auspicious"},{"name":"Kāla","start":"02:59","end":"04:20","startHours":26.983753836094778,"endHours":28.326616568850774,"quality":"inauspicious"},{"name":"Śubha","start":"04:20","end":"05:40","startHours":28.326616568850774,"endHours":29.669479301606778,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.669479301606776,"endHours":6.669479301606776,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.669479301606776,"endHours":7.669479301606776,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.669479301606776,"endHours":8.669479301606776,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.669479301606776,"endHours":9.669479301606776,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.669479301606776,"endHours":10.669479301606776,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.669479301606776,"endHours":11.669479301606776,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.669479301606776,"endHours":12.669479301606776,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.669479301606776,"endHours":13.669479301606776,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.669479301606776,"endHours":14.669479301606776,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.669479301606776,"endHours":15.669479301606776,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.669479301606776,"endHours":16.669479301606778,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.669479301606778,"endHours":17.669479301606778,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.669479301606778,"endHours":18.669479301606778,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.669479301606778,"endHours":19.669479301606778,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.669479301606778,"endHours":20.669479301606778,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.669479301606778,"endHours":21.669479301606778,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.669479301606778,"endHours":22.669479301606778,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.669479301606778,"endHours":23.669479301606778,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.669479301606778,"endHours":24.669479301606778,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.669479301606778,"endHours":25.669479301606778,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.669479301606778,"endHours":26.669479301606778,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.669479301606778,"endHours":27.669479301606778,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.669479301606778,"endHours":28.669479301606778,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.669479301606778,"endHours":29.669479301606778,"planetary_lord":"Jupiter"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.837246846355566,"eotMinutes":-7.886502234966622,"ayanamsa":23.588}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pañcamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 January 11, 1981 CE · Port Louis, Mauritius · Vidhyamitra","description":"January 11, 1981 CE for Port Louis, Mauritius: Śukla Pañcamī, sūryodaya 05:40, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mauritius/1981-01-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mauritius/1981-01-11","sa":"https://sa.vidhyamitra.com/city/mauritius/1981-01-11","hi":"https://hi.vidhyamitra.com/city/mauritius/1981-01-11","x-default":"https://vidhyamitra.com/city/mauritius/1981-01-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T00:52:08.347Z","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":"2026-06-02T00:52:08.347Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T00:52:08.347Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}