{"id":"vidhyamitra:city-day:erode:1991-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1991-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1991-12-01","date_display":"December 1, 1991 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":1991,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448591.770833,"kali_year":5093,"ahargana":1860126.2708,"sun":{"sidereal_longitude":224.1032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":162.7043,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":298.6011,"elapsed_within_tithi_degrees":10.6011},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.7043,"elapsed_within_degrees":2.7043},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":26.8075},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"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":1991,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448591.770833,"ahargana":1860126.2708,"kali_year":5093,"ayanamsa_lahiri":23.7401,"grahas":{"sun":{"sidereal_longitude":224.58774500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":164.72904500000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":-4.4463},"mars":{"sidereal_longitude":217.80334500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":240.27824499999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":139.29454499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":180.32454499999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":278.908045,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":261.5586,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":81.5586,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"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":1991,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448591.770833,"kali_year":5093,"ahargana":1860126.2708,"sun":{"sidereal_longitude":224.1032,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":162.7043,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":298.6011,"elapsed_within_tithi_degrees":10.6011},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":162.7043,"elapsed_within_degrees":2.7043},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":26.8075},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.446,"elongation":61.399},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.446,"opposition_distance":118.601}},"eclipse_window_40days":[]},"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"erode","name":"Erode, Tamil Nadu","lat":11.341,"lon":77.7172,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tier-1"},"sunriseLocal":"06:24","sunsetLocal":"17:54","solarNoonLocal":"12:09","dayLengthHours":11.512087758112713,"dayLengthDisplay":"11 Hours 30 Mins 44 Secs","nightLengthDisplay":"12 Hours 29 Mins 16 Secs","moonriseLocal":"02:10","moonsetLocal":"14:09","rahuKala":{"name":"Rāhu Kāla","start":"16:28","end":"17:54","startHours":16.467035399285592,"endHours":17.906046369049683,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:09","end":"13:35","startHours":12.150002489993327,"endHours":13.589013459757414,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:02","end":"16:28","startHours":15.028024429521505,"endHours":16.467035399285592,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:28","startHours":9.08011242116327,"endHours":9.463848679767025,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:52","end":"07:11","startHours":6.873628934191665,"endHours":7.180617941074671,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:32","startHours":11.766266231389569,"endHours":12.533738748597084,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:52","end":"05:38","startHours":4.85901357652194,"endHours":5.626486093729455,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:26","end":"06:24","startHours":5.434617964427576,"endHours":6.393958610936969,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:50","startHours":14.068683783012112,"endHours":14.836156300219626,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.706046369049684,"endHours":18.106046369049682,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:23","startHours":17.906046369049683,"endHours":18.385716692304378,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.656046369049683,"endHours":19.406046369049683,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:32","startHours":23.76626623138957,"endHours":24.533738748597084,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:24","end":"07:50","startHours":6.393958610936969,"endHours":7.832969580701058,"quality":"inauspicious"},{"name":"Chala","start":"07:50","end":"09:16","startHours":7.832969580701058,"endHours":9.271980550465148,"quality":"neutral"},{"name":"Labha","start":"09:16","end":"10:43","startHours":9.271980550465148,"endHours":10.710991520229236,"quality":"auspicious"},{"name":"Amṛta","start":"10:43","end":"12:09","startHours":10.710991520229236,"endHours":12.150002489993327,"quality":"auspicious"},{"name":"Kāla","start":"12:09","end":"13:35","startHours":12.150002489993327,"endHours":13.589013459757414,"quality":"inauspicious"},{"name":"Śubha","start":"13:35","end":"15:02","startHours":13.589013459757414,"endHours":15.028024429521505,"quality":"auspicious"},{"name":"Roga","start":"15:02","end":"16:28","startHours":15.028024429521505,"endHours":16.467035399285592,"quality":"inauspicious"},{"name":"Udveg","start":"16:28","end":"17:54","startHours":16.467035399285592,"endHours":17.906046369049683,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:54","end":"19:28","startHours":17.906046369049683,"endHours":19.467035399285592,"quality":"auspicious"},{"name":"Roga","start":"19:28","end":"21:02","startHours":19.467035399285592,"endHours":21.028024429521505,"quality":"inauspicious"},{"name":"Udveg","start":"21:02","end":"22:35","startHours":21.028024429521505,"endHours":22.589013459757417,"quality":"inauspicious"},{"name":"Chala","start":"22:35","end":"00:09","startHours":22.589013459757417,"endHours":24.150002489993327,"quality":"neutral"},{"name":"Labha","start":"00:09","end":"01:43","startHours":24.150002489993327,"endHours":25.710991520229236,"quality":"auspicious"},{"name":"Amṛta","start":"01:43","end":"03:16","startHours":25.710991520229236,"endHours":27.27198055046515,"quality":"auspicious"},{"name":"Kāla","start":"03:16","end":"04:50","startHours":27.27198055046515,"endHours":28.83296958070106,"quality":"inauspicious"},{"name":"Śubha","start":"04:50","end":"06:24","startHours":28.83296958070106,"endHours":30.39395861093697,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.393958610936969,"endHours":7.393958610936969,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.393958610936969,"endHours":8.39395861093697,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.39395861093697,"endHours":9.39395861093697,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.39395861093697,"endHours":10.39395861093697,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.39395861093697,"endHours":11.39395861093697,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.39395861093697,"endHours":12.39395861093697,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.39395861093697,"endHours":13.39395861093697,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.39395861093697,"endHours":14.39395861093697,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.39395861093697,"endHours":15.39395861093697,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.39395861093697,"endHours":16.39395861093697,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.39395861093697,"endHours":17.39395861093697,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.39395861093697,"endHours":18.39395861093697,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.39395861093697,"endHours":19.39395861093697,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.39395861093697,"endHours":20.39395861093697,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.39395861093697,"endHours":21.39395861093697,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.39395861093697,"endHours":22.39395861093697,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.39395861093697,"endHours":23.39395861093697,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.39395861093697,"endHours":24.39395861093697,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.39395861093697,"endHours":25.39395861093697,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.39395861093697,"endHours":26.39395861093697,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.39395861093697,"endHours":27.39395861093697,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.39395861093697,"endHours":28.39395861093697,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.39395861093697,"endHours":29.39395861093697,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.39395861093697,"endHours":30.39395861093697,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.69203624959993,"eotMinutes":10.131050600400467,"ayanamsa":23.7401}},"calendars":{"vikram_samvat":2048,"vikram_samvatsara":"Tāraṇa","saka_samvat":1913,"saka_samvatsara":"Prajāpati","bengali_samvat":1398,"malayalam_era":1167,"nanakshahi_year":522,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","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 Kṛṣṇa Daśamī · Vikram 2048 Tāraṇa · Śaka 1913 Prajāpati"},"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":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 1, 1991 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 1, 1991 CE for Erode, Tamil Nadu: Kṛṣṇa Daśamī, sūryodaya 06:24, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1991-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1991-12-01","sa":"https://sa.vidhyamitra.com/city/erode/1991-12-01","hi":"https://hi.vidhyamitra.com/city/erode/1991-12-01","x-default":"https://vidhyamitra.com/city/erode/1991-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T08:59:54.132Z","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":"2026-05-31T08:59:54.132Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T08:59:54.132Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}