{"id":"vidhyamitra:city-day:erode:1985-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1985-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-04-17","date_display":"April 17, 1985 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":1985,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446172.770833,"kali_year":5087,"ahargana":1857707.2708,"sun":{"sidereal_longitude":3.4901,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":327.3559,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.8658,"elapsed_within_tithi_degrees":11.8658},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.3559,"elapsed_within_degrees":7.3559},"yoga":{"number":25,"name":"Brahma","sum_longitude":330.846},"karana":{"half_tithi_index":53,"name":"Taitila"},"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":1985,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446172.770833,"ahargana":1857707.2708,"kali_year":5087,"ayanamsa_lahiri":23.6475,"grahas":{"sun":{"sidereal_longitude":3.333769000000018,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":328.76736900000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false,"latitude":-3.9861},"mars":{"sidereal_longitude":30.04496899999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":343.370469,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":290.662869,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"venus":{"sidereal_longitude":343.854269,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":212.84006899999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":29.7289,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":209.7289,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":1985,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446172.770833,"kali_year":5087,"ahargana":1857707.2708,"sun":{"sidereal_longitude":3.4901,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":327.3559,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.8658,"elapsed_within_tithi_degrees":11.8658},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.3559,"elapsed_within_degrees":7.3559},"yoga":{"number":25,"name":"Brahma","sum_longitude":330.846},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.986,"elongation":36.134},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.986,"opposition_distance":143.866}},"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":"06:07","sunsetLocal":"18:31","solarNoonLocal":"12:19","dayLengthHours":12.396443677861196,"dayLengthDisplay":"12 Hours 23 Mins 47 Secs","nightLengthDisplay":"11 Hours 36 Mins 13 Secs","moonriseLocal":"04:01","moonsetLocal":"16:01","rahuKala":{"name":"Rāhu Kāla","start":"12:19","end":"13:52","startHours":12.314452517004504,"endHours":13.864007976737152,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:40","end":"09:13","startHours":7.665786137806554,"endHours":9.215341597539204,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:46","end":"12:19","startHours":10.764897057271853,"endHours":12.314452517004504,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:25","startHours":9.008734202908185,"endHours":9.421948992170224,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.632749164651456,"endHours":6.963320996061087,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:44","startHours":11.901237727742462,"endHours":12.727667306266543,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:17","startHours":4.463371521025746,"endHours":5.289801099549826,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:07","startHours":5.083193704918806,"endHours":6.116230678073905,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:23","end":"15:12","startHours":14.380526463314702,"endHours":15.206956041838781,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:19","end":"18:43","startHours":18.3126743559351,"endHours":18.7126743559351,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:31","end":"19:02","startHours":18.5126743559351,"endHours":19.02919284251265,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:16","end":"20:01","startHours":18.2626743559351,"endHours":20.0126743559351,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:44","startHours":23.901237727742465,"endHours":24.727667306266543,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:07","end":"07:40","startHours":6.116230678073905,"endHours":7.665786137806554,"quality":"auspicious"},{"name":"Amṛta","start":"07:40","end":"09:13","startHours":7.665786137806554,"endHours":9.215341597539204,"quality":"auspicious"},{"name":"Kāla","start":"09:13","end":"10:46","startHours":9.215341597539204,"endHours":10.764897057271853,"quality":"inauspicious"},{"name":"Śubha","start":"10:46","end":"12:19","startHours":10.764897057271853,"endHours":12.314452517004504,"quality":"auspicious"},{"name":"Roga","start":"12:19","end":"13:52","startHours":12.314452517004504,"endHours":13.864007976737152,"quality":"inauspicious"},{"name":"Udveg","start":"13:52","end":"15:25","startHours":13.864007976737152,"endHours":15.4135634364698,"quality":"inauspicious"},{"name":"Chala","start":"15:25","end":"16:58","startHours":15.4135634364698,"endHours":16.963118896202452,"quality":"neutral"},{"name":"Labha","start":"16:58","end":"18:31","startHours":16.963118896202452,"endHours":18.5126743559351,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:31","end":"19:58","startHours":18.5126743559351,"endHours":19.963118896202452,"quality":"inauspicious"},{"name":"Chala","start":"19:58","end":"21:25","startHours":19.963118896202452,"endHours":21.4135634364698,"quality":"neutral"},{"name":"Labha","start":"21:25","end":"22:52","startHours":21.4135634364698,"endHours":22.864007976737152,"quality":"auspicious"},{"name":"Amṛta","start":"22:52","end":"00:19","startHours":22.864007976737152,"endHours":24.314452517004504,"quality":"auspicious"},{"name":"Kāla","start":"00:19","end":"01:46","startHours":24.314452517004504,"endHours":25.764897057271853,"quality":"inauspicious"},{"name":"Śubha","start":"01:46","end":"03:13","startHours":25.764897057271853,"endHours":27.215341597539204,"quality":"auspicious"},{"name":"Roga","start":"03:13","end":"04:40","startHours":27.215341597539204,"endHours":28.665786137806556,"quality":"inauspicious"},{"name":"Udveg","start":"04:40","end":"06:07","startHours":28.665786137806556,"endHours":30.116230678073904,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.116230678073905,"endHours":7.116230678073905,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.116230678073905,"endHours":8.116230678073904,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.116230678073904,"endHours":9.116230678073904,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.116230678073904,"endHours":10.116230678073904,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.116230678073904,"endHours":11.116230678073904,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.116230678073904,"endHours":12.116230678073904,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.116230678073904,"endHours":13.116230678073904,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.116230678073904,"endHours":14.116230678073904,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.116230678073904,"endHours":15.116230678073904,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.116230678073904,"endHours":16.116230678073904,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.116230678073904,"endHours":17.116230678073904,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.116230678073904,"endHours":18.116230678073904,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.116230678073904,"endHours":19.116230678073904,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.116230678073904,"endHours":20.116230678073904,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.116230678073904,"endHours":21.116230678073904,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.116230678073904,"endHours":22.116230678073904,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.116230678073904,"endHours":23.116230678073904,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.116230678073904,"endHours":24.116230678073904,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.116230678073904,"endHours":25.116230678073904,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.116230678073904,"endHours":26.116230678073904,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.116230678073904,"endHours":27.116230678073904,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.116230678073904,"endHours":28.116230678073904,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.116230678073904,"endHours":29.116230678073904,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.116230678073904,"endHours":30.116230678073904,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":10.396024279473272,"eotMinutes":0.2640489797298191,"ayanamsa":23.6475}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Dvādaśī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":"erode"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 17, 1985 CE · Erode, Tamil Nadu · Vidhyamitra","description":"April 17, 1985 CE for Erode, Tamil Nadu: Kṛṣṇa Dvādaśī, sūryodaya 06:07, sūryāsta 18:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1985-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1985-04-17","sa":"https://sa.vidhyamitra.com/city/erode/1985-04-17","hi":"https://hi.vidhyamitra.com/city/erode/1985-04-17","x-default":"https://vidhyamitra.com/city/erode/1985-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T07:33:56.287Z","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":"2026-05-18T07:33:56.287Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T07:33:56.287Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}