{"id":"vidhyamitra:city-day:sabarimala:1981-12-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/sabarimala/1981-12-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-07","date_display":"December 7, 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":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444945.770833,"kali_year":5083,"ahargana":1856480.2708,"sun":{"sidereal_longitude":230.8382,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":353.7597,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.9215,"elapsed_within_tithi_degrees":2.9215},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":353.7597,"elapsed_within_degrees":7.093},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":224.5979},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":12,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444945.770833,"ahargana":1856480.2708,"kali_year":5083,"ayanamsa_lahiri":23.6006,"grahas":{"sun":{"sidereal_longitude":231.24714900000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":350.949949,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-4.4174},"mars":{"sidereal_longitude":152.28524900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":229.46864900000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":188.708749,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":275.391349,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":175.79404899999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":94.7412,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":274.7412,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1981,"month":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444945.770833,"kali_year":5083,"ahargana":1856480.2708,"sun":{"sidereal_longitude":230.8382,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":353.7597,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.9215,"elapsed_within_tithi_degrees":2.9215},"nakshatra":{"number":27,"name":"Revatī","pada":3,"moon_longitude":353.7597,"elapsed_within_degrees":7.093},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":224.5979},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.417,"elongation":122.922},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.417,"opposition_distance":57.078}},"eclipse_window_40days":[]},"city":{"slug":"sabarimala","name":"Sabarimalā (Ayyappa)","lat":9.4376,"lon":77.0808,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"sabarimala","name":"Sabarimalā (Ayyappa)","lat":9.4376,"lon":77.0808,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tirtha"},"sunriseLocal":"06:26","sunsetLocal":"18:02","solarNoonLocal":"12:14","dayLengthHours":11.59377955327271,"dayLengthDisplay":"11 Hours 35 Mins 38 Secs","nightLengthDisplay":"12 Hours 24 Mins 22 Secs","moonriseLocal":"14:07","moonsetLocal":"02:19","rahuKala":{"name":"Rāhu Kāla","start":"07:53","end":"09:20","startHours":7.884884392133778,"endHours":9.334106836292868,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:47","end":"12:14","startHours":10.783329280451955,"endHours":12.232551724611046,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:41","end":"15:08","startHours":13.681774168770133,"endHours":15.130996612929223,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:32","startHours":9.140877177071655,"endHours":9.52733649551408,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:55","end":"07:14","startHours":6.918736096027719,"endHours":7.227903550781658,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:37","startHours":11.846092406168623,"endHours":12.619011043053469,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:40","startHours":4.889824674204995,"endHours":5.662743311089842,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:28","end":"06:26","startHours":5.46951365186863,"endHours":6.4356619479746895,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:56","startHours":14.164848316823164,"endHours":14.937766953708012,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:50","end":"18:14","startHours":17.829441501247402,"endHours":18.2294415012474,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:02","end":"18:31","startHours":18.0294415012474,"endHours":18.512515649300433,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:47","end":"19:32","startHours":17.7794415012474,"endHours":19.5294415012474,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:37","startHours":23.846092406168623,"endHours":24.61901104305347,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:26","end":"07:53","startHours":6.4356619479746895,"endHours":7.884884392133778,"quality":"auspicious"},{"name":"Kāla","start":"07:53","end":"09:20","startHours":7.884884392133778,"endHours":9.334106836292868,"quality":"inauspicious"},{"name":"Śubha","start":"09:20","end":"10:47","startHours":9.334106836292868,"endHours":10.783329280451955,"quality":"auspicious"},{"name":"Roga","start":"10:47","end":"12:14","startHours":10.783329280451955,"endHours":12.232551724611046,"quality":"inauspicious"},{"name":"Udveg","start":"12:14","end":"13:41","startHours":12.232551724611046,"endHours":13.681774168770133,"quality":"inauspicious"},{"name":"Chala","start":"13:41","end":"15:08","startHours":13.681774168770133,"endHours":15.130996612929223,"quality":"neutral"},{"name":"Labha","start":"15:08","end":"16:35","startHours":15.130996612929223,"endHours":16.58021905708831,"quality":"auspicious"},{"name":"Amṛta","start":"16:35","end":"18:02","startHours":16.58021905708831,"endHours":18.0294415012474,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:02","end":"19:35","startHours":18.0294415012474,"endHours":19.580219057088314,"quality":"neutral"},{"name":"Labha","start":"19:35","end":"21:08","startHours":19.580219057088314,"endHours":21.130996612929223,"quality":"auspicious"},{"name":"Amṛta","start":"21:08","end":"22:41","startHours":21.130996612929223,"endHours":22.681774168770133,"quality":"auspicious"},{"name":"Kāla","start":"22:41","end":"00:14","startHours":22.681774168770133,"endHours":24.232551724611046,"quality":"inauspicious"},{"name":"Śubha","start":"00:14","end":"01:47","startHours":24.232551724611046,"endHours":25.78332928045196,"quality":"auspicious"},{"name":"Roga","start":"01:47","end":"03:20","startHours":25.78332928045196,"endHours":27.334106836292868,"quality":"inauspicious"},{"name":"Udveg","start":"03:20","end":"04:53","startHours":27.334106836292868,"endHours":28.884884392133777,"quality":"inauspicious"},{"name":"Chala","start":"04:53","end":"06:26","startHours":28.884884392133777,"endHours":30.43566194797469,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:26","end":"07:26","startHours":6.4356619479746895,"endHours":7.4356619479746895,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:26","end":"08:26","startHours":7.4356619479746895,"endHours":8.43566194797469,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:26","end":"09:26","startHours":8.43566194797469,"endHours":9.43566194797469,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:26","end":"10:26","startHours":9.43566194797469,"endHours":10.43566194797469,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:26","end":"11:26","startHours":10.43566194797469,"endHours":11.43566194797469,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:26","end":"12:26","startHours":11.43566194797469,"endHours":12.43566194797469,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:26","end":"13:26","startHours":12.43566194797469,"endHours":13.43566194797469,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:26","end":"14:26","startHours":13.43566194797469,"endHours":14.43566194797469,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:26","end":"15:26","startHours":14.43566194797469,"endHours":15.43566194797469,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:26","end":"16:26","startHours":15.43566194797469,"endHours":16.43566194797469,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:26","end":"17:26","startHours":16.43566194797469,"endHours":17.43566194797469,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:26","end":"18:26","startHours":17.43566194797469,"endHours":18.43566194797469,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:26","end":"19:26","startHours":18.43566194797469,"endHours":19.43566194797469,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:26","end":"20:26","startHours":19.43566194797469,"endHours":20.43566194797469,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:26","end":"21:26","startHours":20.43566194797469,"endHours":21.43566194797469,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:26","end":"22:26","startHours":21.43566194797469,"endHours":22.43566194797469,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:26","end":"23:26","startHours":22.43566194797469,"endHours":23.43566194797469,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:26","end":"00:26","startHours":23.43566194797469,"endHours":24.43566194797469,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:26","end":"01:26","startHours":24.43566194797469,"endHours":25.43566194797469,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:26","end":"02:26","startHours":25.43566194797469,"endHours":26.43566194797469,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:26","end":"03:26","startHours":26.43566194797469,"endHours":27.43566194797469,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:26","end":"04:26","startHours":27.43566194797469,"endHours":28.43566194797469,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:26","end":"05:26","startHours":28.43566194797469,"endHours":29.43566194797469,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:26","end":"06:26","startHours":29.43566194797469,"endHours":30.43566194797469,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.575787916633296,"eotMinutes":7.723696523337262,"ayanamsa":23.6006}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ekādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"gita-jayanti","name":"Gītā Jayantī (= Mokṣadā Ekādaśī)","name_sanskrit":"गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad-Gītā speaker)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra (Mahābhārata Day 1).","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":1,"related_chart":"krishna","historical_anchor":{"event":"Bhagavad Gītā delivered at Kurukṣetra (Mahābhārata Day 1)","date_julian":"-3137-10-04","location":"Kurukṣetra"},"sources":["Bhagavad Gītā (Mahābhārata, Bhīṣma Parva)"]},{"id":"vaikuntha-ekadashi","name":"Vaikuṇṭha Ekādaśī","name_sanskrit":"वैकुण्ठ एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Most sacred Ekādaśī of the year; 'Vaikuṇṭha-dvāram udghaṭitam'.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":2},{"id":"mokshada-ekadashi","name":"Mokṣadā Ekādaśī (Gītā Jayantī)","name_sanskrit":"मोक्षदा एकादशी / गीता जयन्ती","tradition":"Vaishnava","associated_deity":"Krishna (Bhagavad Gītā delivery)","significance":"Day Bhagavad Gītā was delivered at Kurukṣetra.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"sabarimala"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 7, 1981 CE · Sabarimalā (Ayyappa) · Vidhyamitra","description":"December 7, 1981 CE for Sabarimalā (Ayyappa): Śukla Ekādaśī, sūryodaya 06:26, sūryāsta 18:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/sabarimala/1981-12-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/sabarimala/1981-12-07","sa":"https://sa.vidhyamitra.com/city/sabarimala/1981-12-07","hi":"https://hi.vidhyamitra.com/city/sabarimala/1981-12-07","x-default":"https://vidhyamitra.com/city/sabarimala/1981-12-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T13:37:35.709Z","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":"2026-06-03T13:37:35.709Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T13:37:35.709Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}