{"id":"vidhyamitra:city-day:erode:2121-05-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/2121-05-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2121-05-15","date_display":"May 15, 2121 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":2121,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495873.770833,"kali_year":5223,"ahargana":1907408.2708,"sun":{"sidereal_longitude":28.432,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":7.6459,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":339.2139,"elapsed_within_tithi_degrees":3.2139},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.6459,"elapsed_within_degrees":7.6459},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":36.0779},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2121,"month":5,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2495873.770833,"ahargana":1907408.2708,"kali_year":5223,"ayanamsa_lahiri":25.5484,"grahas":{"sun":{"sidereal_longitude":28.723124999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":6.097624999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":4.4988},"mars":{"sidereal_longitude":117.14802499999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":27.95662500000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":87.69172500000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"venus":{"sidereal_longitude":341.277425,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":65.40022499999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":276.3307,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":96.3307,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"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":2121,"month":5,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495873.770833,"kali_year":5223,"ahargana":1907408.2708,"sun":{"sidereal_longitude":28.432,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":7.6459,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":339.2139,"elapsed_within_tithi_degrees":3.2139},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":7.6459,"elapsed_within_degrees":7.6459},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":36.0779},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.499,"elongation":20.786},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.499,"opposition_distance":159.214}},"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":"05:56","sunsetLocal":"18:35","solarNoonLocal":"12:15","dayLengthHours":12.643149952221856,"dayLengthDisplay":"12 Hours 38 Mins 35 Secs","nightLengthDisplay":"11 Hours 21 Mins 25 Secs","moonriseLocal":"04:33","moonsetLocal":"16:57","rahuKala":{"name":"Rāhu Kāla","start":"13:50","end":"15:25","startHours":13.836643728428964,"endHours":15.417037472456697,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:56","end":"07:31","startHours":5.934675008290304,"endHours":7.515068752318036,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:41","startHours":9.095462496345768,"endHours":10.6758562403735,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.884743330475404,"endHours":9.306181662216133,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:48","startHours":6.461472922966214,"endHours":6.798623588358797,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:41","startHours":11.834811652660504,"endHours":12.677688316141962,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:06","startHours":4.24892168132739,"endHours":5.091798344808847,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:56","startHours":4.881079178938482,"endHours":5.934675008290304,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:12","startHours":14.363441643104874,"endHours":15.206318306586331,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:23","end":"18:47","startHours":18.37782496051216,"endHours":18.77782496051216,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:35","end":"19:06","startHours":18.57782496051216,"endHours":19.10462287518807,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:20","end":"20:05","startHours":18.32782496051216,"endHours":20.07782496051216,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:41","startHours":23.834811652660505,"endHours":24.67768831614196,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:56","end":"07:31","startHours":5.934675008290304,"endHours":7.515068752318036,"quality":"auspicious"},{"name":"Roga","start":"07:31","end":"09:06","startHours":7.515068752318036,"endHours":9.095462496345768,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:41","startHours":9.095462496345768,"endHours":10.6758562403735,"quality":"inauspicious"},{"name":"Chala","start":"10:41","end":"12:15","startHours":10.6758562403735,"endHours":12.256249984401233,"quality":"neutral"},{"name":"Labha","start":"12:15","end":"13:50","startHours":12.256249984401233,"endHours":13.836643728428964,"quality":"auspicious"},{"name":"Amṛta","start":"13:50","end":"15:25","startHours":13.836643728428964,"endHours":15.417037472456697,"quality":"auspicious"},{"name":"Kāla","start":"15:25","end":"17:00","startHours":15.417037472456697,"endHours":16.99743121648443,"quality":"inauspicious"},{"name":"Śubha","start":"17:00","end":"18:35","startHours":16.99743121648443,"endHours":18.57782496051216,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:35","end":"20:00","startHours":18.57782496051216,"endHours":19.99743121648443,"quality":"auspicious"},{"name":"Kāla","start":"20:00","end":"21:25","startHours":19.99743121648443,"endHours":21.417037472456695,"quality":"inauspicious"},{"name":"Śubha","start":"21:25","end":"22:50","startHours":21.417037472456695,"endHours":22.836643728428964,"quality":"auspicious"},{"name":"Roga","start":"22:50","end":"00:15","startHours":22.836643728428964,"endHours":24.256249984401233,"quality":"inauspicious"},{"name":"Udveg","start":"00:15","end":"01:41","startHours":24.256249984401233,"endHours":25.6758562403735,"quality":"inauspicious"},{"name":"Chala","start":"01:41","end":"03:06","startHours":25.6758562403735,"endHours":27.095462496345768,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:31","startHours":27.095462496345768,"endHours":28.515068752318037,"quality":"auspicious"},{"name":"Amṛta","start":"04:31","end":"05:56","startHours":28.515068752318037,"endHours":29.934675008290306,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.934675008290304,"endHours":6.934675008290304,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.934675008290304,"endHours":7.934675008290304,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.934675008290304,"endHours":8.934675008290304,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.934675008290304,"endHours":9.934675008290304,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.934675008290304,"endHours":10.934675008290304,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.934675008290304,"endHours":11.934675008290304,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.934675008290304,"endHours":12.934675008290304,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.934675008290304,"endHours":13.934675008290304,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.934675008290304,"endHours":14.934675008290304,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.934675008290304,"endHours":15.934675008290304,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.934675008290304,"endHours":16.934675008290306,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.934675008290306,"endHours":17.934675008290306,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.934675008290306,"endHours":18.934675008290306,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.934675008290306,"endHours":19.934675008290306,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.934675008290306,"endHours":20.934675008290306,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.934675008290306,"endHours":21.934675008290306,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.934675008290306,"endHours":22.934675008290306,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.934675008290306,"endHours":23.934675008290306,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.934675008290306,"endHours":24.934675008290306,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.934675008290306,"endHours":25.934675008290306,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.934675008290306,"endHours":26.934675008290306,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.934675008290306,"endHours":27.934675008290306,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.934675008290306,"endHours":28.934675008290306,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.934675008290306,"endHours":29.934675008290306,"planetary_lord":"Moon"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.83697858333653,"eotMinutes":3.7562009359260493,"ayanamsa":25.5484}},"calendars":{"vikram_samvat":2178,"vikram_samvatsara":"Jaya","saka_samvat":2043,"saka_samvatsara":"Vṛṣa","bengali_samvat":1528,"malayalam_era":1297,"nanakshahi_year":652,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Caturdaśī · Vikram 2178 Jaya · Śaka 2043 Vṛṣa"},"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},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 May 15, 2121 CE · Erode, Tamil Nadu · Vidhyamitra","description":"May 15, 2121 CE for Erode, Tamil Nadu: Kṛṣṇa Caturdaśī, sūryodaya 05:56, sūryāsta 18:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/2121-05-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/2121-05-15","sa":"https://sa.vidhyamitra.com/city/erode/2121-05-15","hi":"https://hi.vidhyamitra.com/city/erode/2121-05-15","x-default":"https://vidhyamitra.com/city/erode/2121-05-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T23:45:12.391Z","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":"2026-05-22T23:45:12.391Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T23:45:12.391Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}