{"id":"vidhyamitra:city-day:rameswaram:1981-02-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rameswaram/1981-02-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-02-11","date_display":"February 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":2,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444646.770833,"kali_year":5082,"ahargana":1856181.2708,"sun":{"sidereal_longitude":298.7666,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":18.0954,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.3288,"elapsed_within_tithi_degrees":7.3288},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.0954,"elapsed_within_degrees":4.762},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.8619},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"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":1981,"month":2,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444646.770833,"ahargana":1856181.2708,"kali_year":5082,"ayanamsa_lahiri":23.5892,"grahas":{"sun":{"sidereal_longitude":298.64307299999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":19.364472999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false,"latitude":-4.4957},"mars":{"sidereal_longitude":309.941373,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":311.081373,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":166.387873,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":285.1930729999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.494373,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":110.5837,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.5837,"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":2,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444646.770833,"kali_year":5082,"ahargana":1856181.2708,"sun":{"sidereal_longitude":298.7666,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":18.0954,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":79.3288,"elapsed_within_tithi_degrees":7.3288},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2,"moon_longitude":18.0954,"elapsed_within_degrees":4.762},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.8619},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.496,"elongation":79.329},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.496,"opposition_distance":100.671}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"rameswaram","name":"Rameswaram, Tamil Nadu","lat":9.2885,"lon":79.3127,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rameswaram","name":"Rameswaram, Tamil Nadu","lat":9.2885,"lon":79.3127,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"sunriseLocal":"06:33","sunsetLocal":"18:21","solarNoonLocal":"12:27","dayLengthHours":11.802202138276542,"dayLengthDisplay":"11 Hours 48 Mins 08 Secs","nightLengthDisplay":"12 Hours 11 Mins 52 Secs","moonriseLocal":"11:37","moonsetLocal":"00:03","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"13:56","startHours":12.455439025842978,"endHours":13.930714293127544,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:02","end":"09:30","startHours":8.029613223989273,"endHours":9.504888491273842,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:59","end":"12:27","startHours":10.980163758558408,"endHours":12.455439025842978,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:18","end":"09:42","startHours":9.308185122302566,"endHours":9.701591860245117,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:22","startHours":7.046096379132895,"endHours":7.360821769486936,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:51","startHours":12.062032287900426,"endHours":12.84884576378553,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:59","end":"05:46","startHours":4.9807110049345,"endHours":5.767524480819604,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:34","end":"06:33","startHours":5.5708211118483275,"endHours":6.554337956704706,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:13","startHours":14.422472715555735,"endHours":15.209286191440837,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.15654009498125,"endHours":18.556540094981248,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:51","startHours":18.35654009498125,"endHours":18.84829851740944,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.10654009498125,"endHours":19.85654009498125,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:51","startHours":24.062032287900426,"endHours":24.84884576378553,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:33","end":"08:02","startHours":6.554337956704706,"endHours":8.029613223989273,"quality":"auspicious"},{"name":"Amṛta","start":"08:02","end":"09:30","startHours":8.029613223989273,"endHours":9.504888491273842,"quality":"auspicious"},{"name":"Kāla","start":"09:30","end":"10:59","startHours":9.504888491273842,"endHours":10.980163758558408,"quality":"inauspicious"},{"name":"Śubha","start":"10:59","end":"12:27","startHours":10.980163758558408,"endHours":12.455439025842978,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"13:56","startHours":12.455439025842978,"endHours":13.930714293127544,"quality":"inauspicious"},{"name":"Udveg","start":"13:56","end":"15:24","startHours":13.930714293127544,"endHours":15.405989560412113,"quality":"inauspicious"},{"name":"Chala","start":"15:24","end":"16:53","startHours":15.405989560412113,"endHours":16.88126482769668,"quality":"neutral"},{"name":"Labha","start":"16:53","end":"18:21","startHours":16.88126482769668,"endHours":18.35654009498125,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:21","end":"19:53","startHours":18.35654009498125,"endHours":19.881264827696683,"quality":"inauspicious"},{"name":"Chala","start":"19:53","end":"21:24","startHours":19.881264827696683,"endHours":21.405989560412113,"quality":"neutral"},{"name":"Labha","start":"21:24","end":"22:56","startHours":21.405989560412113,"endHours":22.930714293127544,"quality":"auspicious"},{"name":"Amṛta","start":"22:56","end":"00:27","startHours":22.930714293127544,"endHours":24.455439025842978,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:59","startHours":24.455439025842978,"endHours":25.98016375855841,"quality":"inauspicious"},{"name":"Śubha","start":"01:59","end":"03:30","startHours":25.98016375855841,"endHours":27.504888491273842,"quality":"auspicious"},{"name":"Roga","start":"03:30","end":"05:02","startHours":27.504888491273842,"endHours":29.029613223989273,"quality":"inauspicious"},{"name":"Udveg","start":"05:02","end":"06:33","startHours":29.029613223989273,"endHours":30.554337956704707,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:33","end":"07:33","startHours":6.554337956704706,"endHours":7.554337956704706,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:33","end":"08:33","startHours":7.554337956704706,"endHours":8.554337956704707,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:33","end":"09:33","startHours":8.554337956704707,"endHours":9.554337956704707,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:33","end":"10:33","startHours":9.554337956704707,"endHours":10.554337956704707,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:33","end":"11:33","startHours":10.554337956704707,"endHours":11.554337956704707,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:33","end":"12:33","startHours":11.554337956704707,"endHours":12.554337956704707,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:33","end":"13:33","startHours":12.554337956704707,"endHours":13.554337956704707,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:33","end":"14:33","startHours":13.554337956704707,"endHours":14.554337956704707,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:33","end":"15:33","startHours":14.554337956704707,"endHours":15.554337956704707,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:33","end":"16:33","startHours":15.554337956704707,"endHours":16.554337956704707,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:33","end":"17:33","startHours":16.554337956704707,"endHours":17.554337956704707,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:33","end":"18:33","startHours":17.554337956704707,"endHours":18.554337956704707,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:33","end":"19:33","startHours":18.554337956704707,"endHours":19.554337956704707,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:33","end":"20:33","startHours":19.554337956704707,"endHours":20.554337956704707,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:33","end":"21:33","startHours":20.554337956704707,"endHours":21.554337956704707,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:33","end":"22:33","startHours":21.554337956704707,"endHours":22.554337956704707,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:33","end":"23:33","startHours":22.554337956704707,"endHours":23.554337956704707,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:33","end":"00:33","startHours":23.554337956704707,"endHours":24.554337956704707,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:33","end":"01:33","startHours":24.554337956704707,"endHours":25.554337956704707,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:33","end":"02:33","startHours":25.554337956704707,"endHours":26.554337956704707,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:33","end":"03:33","startHours":26.554337956704707,"endHours":27.554337956704707,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:33","end":"04:33","startHours":27.554337956704707,"endHours":28.554337956704707,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:33","end":"05:33","startHours":28.554337956704707,"endHours":29.554337956704707,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:33","end":"06:33","startHours":29.554337956704707,"endHours":30.554337956704707,"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.098875286053813,"eotMinutes":-14.577141550578775,"ayanamsa":23.5892}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Saptamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"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":"rameswaram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 11, 1981 CE · Rameswaram, Tamil Nadu · Vidhyamitra","description":"February 11, 1981 CE for Rameswaram, Tamil Nadu: Śukla Saptamī, sūryodaya 06:33, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rameswaram/1981-02-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rameswaram/1981-02-11","sa":"https://sa.vidhyamitra.com/city/rameswaram/1981-02-11","hi":"https://hi.vidhyamitra.com/city/rameswaram/1981-02-11","x-default":"https://vidhyamitra.com/city/rameswaram/1981-02-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T18:33:45.062Z","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":"2026-06-02T18:33:45.062Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T18:33:45.062Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}