{"id":"vidhyamitra:city-day:erode:2071-12-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2071-12-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2071-12-13","date_display":"December 13, 2071 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":2071,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2477823.770833,"kali_year":5173,"ahargana":1889358.2708,"sun":{"sidereal_longitude":235.6649,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":130.9606,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.2956,"elapsed_within_tithi_degrees":3.2956},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.9606,"elapsed_within_degrees":10.9606},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":6.6255},"karana":{"half_tithi_index":42,"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":2071,"month":12,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2477823.770833,"ahargana":1889358.2708,"kali_year":5173,"ayanamsa_lahiri":24.8581,"grahas":{"sun":{"sidereal_longitude":236.24726799999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":134.445268,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-1.6657},"mars":{"sidereal_longitude":93.826168,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":214.90996800000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":32.637767999999994,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":197.079068,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":194.18346799999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":152.7066,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":332.7066,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":2071,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2477823.770833,"kali_year":5173,"ahargana":1889358.2708,"sun":{"sidereal_longitude":235.6649,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":130.9606,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.2956,"elapsed_within_tithi_degrees":3.2956},"nakshatra":{"number":10,"name":"Maghā","pada":4,"moon_longitude":130.9606,"elapsed_within_degrees":10.9606},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":6.6255},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.666,"elongation":104.704},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.666,"opposition_distance":75.296}},"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":"06:30","sunsetLocal":"17:58","solarNoonLocal":"12:14","dayLengthHours":11.468010450423975,"dayLengthDisplay":"11 Hours 28 Mins 05 Secs","nightLengthDisplay":"12 Hours 31 Mins 55 Secs","moonriseLocal":"23:18","moonsetLocal":"11:36","rahuKala":{"name":"Rāhu Kāla","start":"16:32","end":"17:58","startHours":16.534513081418687,"endHours":17.968014387721684,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:40","startHours":12.234009162509697,"endHours":13.667510468812694,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:06","end":"16:32","startHours":15.10101177511569,"endHours":16.534513081418687,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:33","startHours":9.175873042396638,"endHours":9.558140057410771,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:59","end":"07:17","startHours":6.977837706065376,"endHours":7.283651318076682,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:37","startHours":11.851742147495564,"endHours":12.61627617752383,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:58","end":"05:44","startHours":4.97093587724118,"endHours":5.7354699072694455,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:33","end":"06:30","startHours":5.544336399762379,"endHours":6.50000393729771,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:55","startHours":14.14534423758036,"endHours":14.909878267608626,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.768014387721685,"endHours":18.168014387721684,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:27","startHours":17.968014387721684,"endHours":18.44584815648935,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.718014387721684,"endHours":19.468014387721684,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:37","startHours":23.851742147495564,"endHours":24.61627617752383,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:30","end":"07:56","startHours":6.50000393729771,"endHours":7.933505243600707,"quality":"inauspicious"},{"name":"Chala","start":"07:56","end":"09:22","startHours":7.933505243600707,"endHours":9.367006549903703,"quality":"neutral"},{"name":"Labha","start":"09:22","end":"10:48","startHours":9.367006549903703,"endHours":10.8005078562067,"quality":"auspicious"},{"name":"Amṛta","start":"10:48","end":"12:14","startHours":10.8005078562067,"endHours":12.234009162509697,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:40","startHours":12.234009162509697,"endHours":13.667510468812694,"quality":"inauspicious"},{"name":"Śubha","start":"13:40","end":"15:06","startHours":13.667510468812694,"endHours":15.10101177511569,"quality":"auspicious"},{"name":"Roga","start":"15:06","end":"16:32","startHours":15.10101177511569,"endHours":16.534513081418687,"quality":"inauspicious"},{"name":"Udveg","start":"16:32","end":"17:58","startHours":16.534513081418687,"endHours":17.968014387721684,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:58","end":"19:32","startHours":17.968014387721684,"endHours":19.534513081418687,"quality":"auspicious"},{"name":"Roga","start":"19:32","end":"21:06","startHours":19.534513081418687,"endHours":21.10101177511569,"quality":"inauspicious"},{"name":"Udveg","start":"21:06","end":"22:40","startHours":21.10101177511569,"endHours":22.667510468812694,"quality":"inauspicious"},{"name":"Chala","start":"22:40","end":"00:14","startHours":22.667510468812694,"endHours":24.234009162509697,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:48","startHours":24.234009162509697,"endHours":25.8005078562067,"quality":"auspicious"},{"name":"Amṛta","start":"01:48","end":"03:22","startHours":25.8005078562067,"endHours":27.367006549903703,"quality":"auspicious"},{"name":"Kāla","start":"03:22","end":"04:56","startHours":27.367006549903703,"endHours":28.933505243600706,"quality":"inauspicious"},{"name":"Śubha","start":"04:56","end":"06:30","startHours":28.933505243600706,"endHours":30.50000393729771,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.50000393729771,"endHours":7.50000393729771,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.50000393729771,"endHours":8.50000393729771,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.50000393729771,"endHours":9.50000393729771,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.50000393729771,"endHours":10.50000393729771,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.50000393729771,"endHours":11.50000393729771,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.50000393729771,"endHours":12.50000393729771,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.50000393729771,"endHours":13.50000393729771,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.50000393729771,"endHours":14.50000393729771,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.50000393729771,"endHours":15.50000393729771,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.50000393729771,"endHours":16.50000393729771,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.50000393729771,"endHours":17.50000393729771,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.50000393729771,"endHours":18.50000393729771,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.50000393729771,"endHours":19.50000393729771,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.50000393729771,"endHours":20.50000393729771,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.50000393729771,"endHours":21.50000393729771,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.50000393729771,"endHours":22.50000393729771,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.50000393729771,"endHours":23.50000393729771,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.50000393729771,"endHours":24.50000393729771,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.50000393729771,"endHours":25.50000393729771,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.50000393729771,"endHours":26.50000393729771,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.50000393729771,"endHours":27.50000393729771,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.50000393729771,"endHours":28.50000393729771,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.50000393729771,"endHours":29.50000393729771,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.50000393729771,"endHours":30.50000393729771,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","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":-23.13814911786351,"eotMinutes":5.090650249418121,"ayanamsa":24.8581}},"calendars":{"vikram_samvat":2128,"vikram_samvatsara":"Krodhi","saka_samvat":1993,"saka_samvatsara":"Khara","bengali_samvat":1478,"malayalam_era":1247,"nanakshahi_year":602,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Saptamī · Vikram 2128 Krodhi · Śaka 1993 Khara"},"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 13, 2071 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 13, 2071 CE for Erode, Tamil Nadu: Kṛṣṇa Saptamī, sūryodaya 06:30, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2071-12-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2071-12-13","sa":"https://sa.vidhyamitra.com/city/erode/2071-12-13","hi":"https://hi.vidhyamitra.com/city/erode/2071-12-13","x-default":"https://vidhyamitra.com/city/erode/2071-12-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:12:53.367Z","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":"2026-05-31T00:12:53.367Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:12:53.367Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}