{"id":"vidhyamitra:city-day:erode:2012-10-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2012-10-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-10-21","date_display":"October 21, 2012 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":2012,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456221.770833,"kali_year":5114,"ahargana":1867756.2708,"sun":{"sidereal_longitude":183.2635,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":256.1113,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.8478,"elapsed_within_tithi_degrees":0.8478},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.1113,"elapsed_within_degrees":2.7779},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.3748},"karana":{"half_tithi_index":12,"name":"Gara"},"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":2012,"month":10,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456221.770833,"ahargana":1867756.2708,"kali_year":5114,"ayanamsa_lahiri":24.0319,"grahas":{"sun":{"sidereal_longitude":184.01542300000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":259.83832299999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false,"latitude":2.8196},"mars":{"sidereal_longitude":225.791923,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":207.16562299999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":51.532623,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":146.77752299999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":187.512523,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":217.2845,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":37.2845,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2012,"month":10,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456221.770833,"kali_year":5114,"ahargana":1867756.2708,"sun":{"sidereal_longitude":183.2635,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":256.1113,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.8478,"elapsed_within_tithi_degrees":0.8478},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.1113,"elapsed_within_degrees":2.7779},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":79.3748},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.82,"elongation":72.848},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.82,"opposition_distance":107.152}},"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":"06:09","sunsetLocal":"17:58","solarNoonLocal":"12:03","dayLengthHours":11.823604837016227,"dayLengthDisplay":"11 Hours 49 Mins 25 Secs","nightLengthDisplay":"12 Hours 10 Mins 35 Secs","moonriseLocal":"11:23","moonsetLocal":"22:50","rahuKala":{"name":"Rāhu Kāla","start":"16:29","end":"17:58","startHours":16.488881471102673,"endHours":17.9668320757297,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:03","end":"13:32","startHours":12.055029657221588,"endHours":13.532980261848618,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:01","end":"16:29","startHours":15.010930866475647,"endHours":16.488881471102673,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.902068367350596,"endHours":9.29618852858447,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.635877440255819,"endHours":6.951173569242918,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:27","startHours":11.660909495987715,"endHours":12.449149818455462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:21","startHours":4.566746593777979,"endHours":5.3549869162457275,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:09","end":"06:09","startHours":5.157926835628791,"endHours":6.143227238713476,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:49","startHours":14.02563046339096,"endHours":14.81387078585871,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.766832075729702,"endHours":18.1668320757297,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:28","startHours":17.9668320757297,"endHours":18.459482277272045,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.7168320757297,"endHours":19.4668320757297,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:27","startHours":23.660909495987713,"endHours":24.449149818455464,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:09","end":"07:37","startHours":6.143227238713476,"endHours":7.621177843340504,"quality":"inauspicious"},{"name":"Chala","start":"07:37","end":"09:06","startHours":7.621177843340504,"endHours":9.099128447967534,"quality":"neutral"},{"name":"Labha","start":"09:06","end":"10:35","startHours":9.099128447967534,"endHours":10.577079052594561,"quality":"auspicious"},{"name":"Amṛta","start":"10:35","end":"12:03","startHours":10.577079052594561,"endHours":12.055029657221588,"quality":"auspicious"},{"name":"Kāla","start":"12:03","end":"13:32","startHours":12.055029657221588,"endHours":13.532980261848618,"quality":"inauspicious"},{"name":"Śubha","start":"13:32","end":"15:01","startHours":13.532980261848618,"endHours":15.010930866475647,"quality":"auspicious"},{"name":"Roga","start":"15:01","end":"16:29","startHours":15.010930866475647,"endHours":16.488881471102673,"quality":"inauspicious"},{"name":"Udveg","start":"16:29","end":"17:58","startHours":16.488881471102673,"endHours":17.9668320757297,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:58","end":"19:29","startHours":17.9668320757297,"endHours":19.488881471102673,"quality":"auspicious"},{"name":"Roga","start":"19:29","end":"21:01","startHours":19.488881471102673,"endHours":21.010930866475647,"quality":"inauspicious"},{"name":"Udveg","start":"21:01","end":"22:32","startHours":21.010930866475647,"endHours":22.532980261848618,"quality":"inauspicious"},{"name":"Chala","start":"22:32","end":"00:03","startHours":22.532980261848618,"endHours":24.05502965722159,"quality":"neutral"},{"name":"Labha","start":"00:03","end":"01:35","startHours":24.05502965722159,"endHours":25.57707905259456,"quality":"auspicious"},{"name":"Amṛta","start":"01:35","end":"03:06","startHours":25.57707905259456,"endHours":27.09912844796753,"quality":"auspicious"},{"name":"Kāla","start":"03:06","end":"04:37","startHours":27.09912844796753,"endHours":28.621177843340504,"quality":"inauspicious"},{"name":"Śubha","start":"04:37","end":"06:09","startHours":28.621177843340504,"endHours":30.143227238713475,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.143227238713476,"endHours":7.143227238713476,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.143227238713476,"endHours":8.143227238713475,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.143227238713475,"endHours":9.143227238713475,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.143227238713475,"endHours":10.143227238713475,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.143227238713475,"endHours":11.143227238713475,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.143227238713475,"endHours":12.143227238713475,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.143227238713475,"endHours":13.143227238713475,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.143227238713475,"endHours":14.143227238713475,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.143227238713475,"endHours":15.143227238713475,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.143227238713475,"endHours":16.143227238713475,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.143227238713475,"endHours":17.143227238713475,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.143227238713475,"endHours":18.143227238713475,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.143227238713475,"endHours":19.143227238713475,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.143227238713475,"endHours":20.143227238713475,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.143227238713475,"endHours":21.143227238713475,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.143227238713475,"endHours":22.143227238713475,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.143227238713475,"endHours":23.143227238713475,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.143227238713475,"endHours":24.143227238713475,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.143227238713475,"endHours":25.143227238713475,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.143227238713475,"endHours":26.143227238713475,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.143227238713475,"endHours":27.143227238713475,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.143227238713475,"endHours":28.143227238713475,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.143227238713475,"endHours":29.143227238713475,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.143227238713475,"endHours":30.143227238713475,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"drikRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-10.778579669811402,"eotMinutes":15.829420566704727,"ayanamsa":24.0319}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Saptamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi":"Tulā"},"precedence":5}],"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 October 21, 2012 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 21, 2012 CE for Erode, Tamil Nadu: Śukla Saptamī, sūryodaya 06:09, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2012-10-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2012-10-21","sa":"https://sa.vidhyamitra.com/city/erode/2012-10-21","hi":"https://hi.vidhyamitra.com/city/erode/2012-10-21","x-default":"https://vidhyamitra.com/city/erode/2012-10-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T23:53:43.265Z","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":"2026-05-15T23:53:43.265Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T23:53:43.265Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}