{"id":"vidhyamitra:city-day:erode:2017-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2017-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-12-30","date_display":"December 30, 2017 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":2017,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458117.770833,"kali_year":5119,"ahargana":1869652.2708,"sun":{"sidereal_longitude":254.1223,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":33.1239,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.0016,"elapsed_within_tithi_degrees":7.0016},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.1239,"elapsed_within_degrees":6.4572},"yoga":{"number":22,"name":"Sādhya","sum_longitude":287.2462},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2017,"month":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458117.770833,"ahargana":1869652.2708,"kali_year":5119,"ayanamsa_lahiri":24.1044,"grahas":{"sun":{"sidereal_longitude":254.41798199999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":31.168082000000027,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":-4.4728},"mars":{"sidereal_longitude":198.53698200000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":231.71608200000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":202.261882,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":251.72098200000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":246.907782,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":116.8253,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":296.8253,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"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":2017,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458117.770833,"kali_year":5119,"ahargana":1869652.2708,"sun":{"sidereal_longitude":254.1223,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":33.1239,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.0016,"elapsed_within_tithi_degrees":7.0016},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.1239,"elapsed_within_degrees":6.4572},"yoga":{"number":22,"name":"Sādhya","sum_longitude":287.2462},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.473,"elongation":139.002},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.473,"opposition_distance":40.998}},"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":"06:38","sunsetLocal":"18:06","solarNoonLocal":"12:22","dayLengthHours":11.467259885973768,"dayLengthDisplay":"11 Hours 28 Mins 02 Secs","nightLengthDisplay":"12 Hours 31 Mins 58 Secs","moonriseLocal":"15:10","moonsetLocal":"03:47","rahuKala":{"name":"Rāhu Kāla","start":"09:30","end":"10:56","startHours":9.49875993684443,"endHours":10.93216742259115,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:48","end":"15:14","startHours":13.798982394084591,"endHours":15.232389879831313,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:38","end":"08:04","startHours":6.6319449653509865,"endHours":8.065352451097707,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:18","end":"09:41","startHours":9.307638938744866,"endHours":9.689880934943991,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:07","end":"07:25","startHours":7.109747460599894,"endHours":7.415541057559194,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:45","startHours":11.983332912138744,"endHours":12.747816904536995,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:06","end":"05:52","startHours":5.102976980554484,"endHours":5.867460972952736,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:41","end":"06:38","startHours":5.676339974853173,"endHours":6.6319449653509865,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:02","startHours":14.276784889333499,"endHours":15.04126888173175,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.899204851324754,"endHours":18.299204851324752,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:35","startHours":18.099204851324753,"endHours":18.57700734657366,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.849204851324753,"endHours":19.599204851324753,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:45","startHours":23.983332912138742,"endHours":24.747816904536997,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:38","end":"08:04","startHours":6.6319449653509865,"endHours":8.065352451097707,"quality":"inauspicious"},{"name":"Śubha","start":"08:04","end":"09:30","startHours":8.065352451097707,"endHours":9.49875993684443,"quality":"auspicious"},{"name":"Roga","start":"09:30","end":"10:56","startHours":9.49875993684443,"endHours":10.93216742259115,"quality":"inauspicious"},{"name":"Udveg","start":"10:56","end":"12:22","startHours":10.93216742259115,"endHours":12.36557490833787,"quality":"inauspicious"},{"name":"Chala","start":"12:22","end":"13:48","startHours":12.36557490833787,"endHours":13.798982394084591,"quality":"neutral"},{"name":"Labha","start":"13:48","end":"15:14","startHours":13.798982394084591,"endHours":15.232389879831313,"quality":"auspicious"},{"name":"Amṛta","start":"15:14","end":"16:40","startHours":15.232389879831313,"endHours":16.665797365578033,"quality":"auspicious"},{"name":"Kāla","start":"16:40","end":"18:06","startHours":16.665797365578033,"endHours":18.099204851324753,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:06","end":"19:40","startHours":18.099204851324753,"endHours":19.665797365578033,"quality":"auspicious"},{"name":"Amṛta","start":"19:40","end":"21:14","startHours":19.665797365578033,"endHours":21.23238987983131,"quality":"auspicious"},{"name":"Kāla","start":"21:14","end":"22:48","startHours":21.23238987983131,"endHours":22.79898239408459,"quality":"inauspicious"},{"name":"Śubha","start":"22:48","end":"00:22","startHours":22.79898239408459,"endHours":24.36557490833787,"quality":"auspicious"},{"name":"Roga","start":"00:22","end":"01:56","startHours":24.36557490833787,"endHours":25.93216742259115,"quality":"inauspicious"},{"name":"Udveg","start":"01:56","end":"03:30","startHours":25.93216742259115,"endHours":27.49875993684443,"quality":"inauspicious"},{"name":"Chala","start":"03:30","end":"05:04","startHours":27.49875993684443,"endHours":29.065352451097706,"quality":"neutral"},{"name":"Labha","start":"05:04","end":"06:38","startHours":29.065352451097706,"endHours":30.631944965350986,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:38","end":"07:38","startHours":6.6319449653509865,"endHours":7.6319449653509865,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:38","end":"08:38","startHours":7.6319449653509865,"endHours":8.631944965350986,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:38","end":"09:38","startHours":8.631944965350986,"endHours":9.631944965350986,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:38","end":"10:38","startHours":9.631944965350986,"endHours":10.631944965350986,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:38","end":"11:38","startHours":10.631944965350986,"endHours":11.631944965350986,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:38","end":"12:38","startHours":11.631944965350986,"endHours":12.631944965350986,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:38","end":"13:38","startHours":12.631944965350986,"endHours":13.631944965350986,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:38","end":"14:38","startHours":13.631944965350986,"endHours":14.631944965350986,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:38","end":"15:38","startHours":14.631944965350986,"endHours":15.631944965350986,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:38","end":"16:38","startHours":15.631944965350986,"endHours":16.631944965350986,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:38","end":"17:38","startHours":16.631944965350986,"endHours":17.631944965350986,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:38","end":"18:38","startHours":17.631944965350986,"endHours":18.631944965350986,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:38","end":"19:38","startHours":18.631944965350986,"endHours":19.631944965350986,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:38","end":"20:38","startHours":19.631944965350986,"endHours":20.631944965350986,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:38","end":"21:38","startHours":20.631944965350986,"endHours":21.631944965350986,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:38","end":"22:38","startHours":21.631944965350986,"endHours":22.631944965350986,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:38","end":"23:38","startHours":22.631944965350986,"endHours":23.631944965350986,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:38","end":"00:38","startHours":23.631944965350986,"endHours":24.631944965350986,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:38","end":"01:38","startHours":24.631944965350986,"endHours":25.631944965350986,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:38","end":"02:38","startHours":25.631944965350986,"endHours":26.631944965350986,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:38","end":"03:38","startHours":26.631944965350986,"endHours":27.631944965350986,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:38","end":"04:38","startHours":27.631944965350986,"endHours":28.631944965350986,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:38","end":"05:38","startHours":28.631944965350986,"endHours":29.631944965350986,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:38","end":"06:38","startHours":29.631944965350986,"endHours":30.631944965350986,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.162529022942152,"eotMinutes":-2.803294500272213,"ayanamsa":24.1044}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvādaśī · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 30, 2017 CE · Erode, Tamil Nadu · Vidhyamitra","description":"December 30, 2017 CE for Erode, Tamil Nadu: Śukla Dvādaśī, sūryodaya 06:38, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2017-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2017-12-30","sa":"https://sa.vidhyamitra.com/city/erode/2017-12-30","hi":"https://hi.vidhyamitra.com/city/erode/2017-12-30","x-default":"https://vidhyamitra.com/city/erode/2017-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T07:54:25.234Z","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":"2026-05-15T07:54:25.234Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T07:54:25.234Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}