{"id":"vidhyamitra:city-day:erode:2104-07-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2104-07-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2104-07-31","date_display":"July 31, 2104 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":2104,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489741.770833,"kali_year":5206,"ahargana":1901276.2708,"sun":{"sidereal_longitude":101.9403,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":203.1957,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.2554,"elapsed_within_tithi_degrees":5.2554},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":203.1957,"elapsed_within_degrees":3.1957},"yoga":{"number":23,"name":"Śubha","sum_longitude":305.136},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2104,"month":7,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489741.770833,"ahargana":1901276.2708,"kali_year":5206,"ayanamsa_lahiri":25.3139,"grahas":{"sun":{"sidereal_longitude":102.71451300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"moon":{"sidereal_longitude":202.32891300000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":-2.7711},"mars":{"sidereal_longitude":149.938913,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":101.73571300000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":303.49461299999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":122.417013,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":220.561013,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":241.2336,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":61.2336,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2104,"month":7,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489741.770833,"kali_year":5206,"ahargana":1901276.2708,"sun":{"sidereal_longitude":101.9403,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":203.1957,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":101.2554,"elapsed_within_tithi_degrees":5.2554},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":203.1957,"elapsed_within_degrees":3.1957},"yoga":{"number":23,"name":"Śubha","sum_longitude":305.136},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.771,"elongation":101.255},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.771,"opposition_distance":78.745}},"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":"06:06","sunsetLocal":"18:44","solarNoonLocal":"12:25","dayLengthHours":12.625457021526843,"dayLengthDisplay":"12 Hours 37 Mins 32 Secs","nightLengthDisplay":"11 Hours 22 Mins 28 Secs","moonriseLocal":"13:15","moonsetLocal":"00:52","rahuKala":{"name":"Rāhu Kāla","start":"14:00","end":"15:35","startHours":13.998225036230036,"endHours":15.57640716392089,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:06","end":"07:41","startHours":6.107314397775758,"endHours":7.685496525466613,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:16","end":"10:51","startHours":9.263678653157468,"endHours":10.841860780848325,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:28","startHours":9.053254369465355,"endHours":9.474102936849583,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.633375107006043,"endHours":6.970053960913425,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:50","startHours":11.999194341154952,"endHours":12.840891475923408,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:25","end":"05:16","startHours":4.423920128238845,"endHours":5.265617263007302,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:03","end":"06:06","startHours":5.055192979315187,"endHours":6.107314397775758,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:22","startHours":14.52428574546032,"endHours":15.365982880228776,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:32","end":"18:56","startHours":18.532771419302602,"endHours":18.9327714193026,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:44","end":"19:16","startHours":18.7327714193026,"endHours":19.258832128532887,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:29","end":"20:14","startHours":18.4827714193026,"endHours":20.2327714193026,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:50","startHours":23.99919434115495,"endHours":24.84089147592341,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:06","end":"07:41","startHours":6.107314397775758,"endHours":7.685496525466613,"quality":"auspicious"},{"name":"Roga","start":"07:41","end":"09:16","startHours":7.685496525466613,"endHours":9.263678653157468,"quality":"inauspicious"},{"name":"Udveg","start":"09:16","end":"10:51","startHours":9.263678653157468,"endHours":10.841860780848325,"quality":"inauspicious"},{"name":"Chala","start":"10:51","end":"12:25","startHours":10.841860780848325,"endHours":12.42004290853918,"quality":"neutral"},{"name":"Labha","start":"12:25","end":"14:00","startHours":12.42004290853918,"endHours":13.998225036230036,"quality":"auspicious"},{"name":"Amṛta","start":"14:00","end":"15:35","startHours":13.998225036230036,"endHours":15.57640716392089,"quality":"auspicious"},{"name":"Kāla","start":"15:35","end":"17:09","startHours":15.57640716392089,"endHours":17.154589291611746,"quality":"inauspicious"},{"name":"Śubha","start":"17:09","end":"18:44","startHours":17.154589291611746,"endHours":18.7327714193026,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:44","end":"20:09","startHours":18.7327714193026,"endHours":20.154589291611746,"quality":"auspicious"},{"name":"Kāla","start":"20:09","end":"21:35","startHours":20.154589291611746,"endHours":21.57640716392089,"quality":"inauspicious"},{"name":"Śubha","start":"21:35","end":"23:00","startHours":21.57640716392089,"endHours":22.998225036230036,"quality":"auspicious"},{"name":"Roga","start":"23:00","end":"00:25","startHours":22.998225036230036,"endHours":24.42004290853918,"quality":"inauspicious"},{"name":"Udveg","start":"00:25","end":"01:51","startHours":24.42004290853918,"endHours":25.841860780848325,"quality":"inauspicious"},{"name":"Chala","start":"01:51","end":"03:16","startHours":25.841860780848325,"endHours":27.26367865315747,"quality":"neutral"},{"name":"Labha","start":"03:16","end":"04:41","startHours":27.26367865315747,"endHours":28.68549652546661,"quality":"auspicious"},{"name":"Amṛta","start":"04:41","end":"06:06","startHours":28.68549652546661,"endHours":30.10731439777576,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.107314397775758,"endHours":7.107314397775758,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.107314397775758,"endHours":8.107314397775758,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.107314397775758,"endHours":9.107314397775758,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.107314397775758,"endHours":10.107314397775758,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.107314397775758,"endHours":11.107314397775758,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.107314397775758,"endHours":12.107314397775758,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.107314397775758,"endHours":13.107314397775758,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.107314397775758,"endHours":14.107314397775758,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.107314397775758,"endHours":15.107314397775758,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.107314397775758,"endHours":16.10731439777576,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.10731439777576,"endHours":17.10731439777576,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.10731439777576,"endHours":18.10731439777576,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.10731439777576,"endHours":19.10731439777576,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.10731439777576,"endHours":20.10731439777576,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.10731439777576,"endHours":21.10731439777576,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.10731439777576,"endHours":22.10731439777576,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.10731439777576,"endHours":23.10731439777576,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.10731439777576,"endHours":24.10731439777576,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.10731439777576,"endHours":25.10731439777576,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.10731439777576,"endHours":26.10731439777576,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.10731439777576,"endHours":27.10731439777576,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.10731439777576,"endHours":28.10731439777576,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.10731439777576,"endHours":29.10731439777576,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.10731439777576,"endHours":30.10731439777576,"planetary_lord":"Moon"}],"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","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.2579747244532,"eotMinutes":-6.071374512350812,"ayanamsa":25.3139}},"calendars":{"vikram_samvat":2161,"vikram_samvatsara":"Īśvara","saka_samvat":2026,"saka_samvatsara":"Raktākṣī","bengali_samvat":1511,"malayalam_era":1280,"nanakshahi_year":635,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Navamī · Vikram 2161 Īśvara · Śaka 2026 Raktākṣī"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 July 31, 2104 CE · Erode, Tamil Nadu · Vidhyamitra","description":"July 31, 2104 CE for Erode, Tamil Nadu: Śukla Navamī, sūryodaya 06:06, sūryāsta 18:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2104-07-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2104-07-31","sa":"https://sa.vidhyamitra.com/city/erode/2104-07-31","hi":"https://hi.vidhyamitra.com/city/erode/2104-07-31","x-default":"https://vidhyamitra.com/city/erode/2104-07-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T09:53:17.691Z","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":"2026-05-21T09:53:17.691Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T09:53:17.691Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}