{"id":"vidhyamitra:city-day:erode:1987-10-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1987-10-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-10-15","date_display":"October 15, 1987 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":1987,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447083.770833,"kali_year":5089,"ahargana":1858618.2708,"sun":{"sidereal_longitude":176.7659,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":89.8629,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.097,"elapsed_within_tithi_degrees":9.097},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":89.8629,"elapsed_within_degrees":9.8629},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.6288},"karana":{"half_tithi_index":45,"name":"Kaulava"},"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":1987,"month":10,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447083.770833,"ahargana":1858618.2708,"kali_year":5089,"ayanamsa_lahiri":23.6824,"grahas":{"sun":{"sidereal_longitude":177.470962,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":90.663162,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":4.2694},"mars":{"sidereal_longitude":160.48926200000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":199.81216199999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":2.182362000000012,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":191.70996200000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":233.003062,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":341.4597,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":161.4597,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1987,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447083.770833,"kali_year":5089,"ahargana":1858618.2708,"sun":{"sidereal_longitude":176.7659,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":89.8629,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.097,"elapsed_within_tithi_degrees":9.097},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":89.8629,"elapsed_within_degrees":9.8629},"yoga":{"number":20,"name":"Śiva","sum_longitude":266.6288},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.269,"elongation":86.903},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.269,"opposition_distance":93.097}},"eclipse_window_40days":[{"offset_days":-8,"type":"lunar","occurs":true,"moon_latitude":0.545,"opposition_distance":0.003}]},"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":"06:08","sunsetLocal":"18:01","solarNoonLocal":"12:04","dayLengthHours":11.89224236602989,"dayLengthDisplay":"11 Hours 53 Mins 32 Secs","nightLengthDisplay":"12 Hours 06 Mins 28 Secs","moonriseLocal":"23:57","moonsetLocal":"12:37","rahuKala":{"name":"Rāhu Kāla","start":"13:33","end":"15:03","startHours":13.557769789565267,"endHours":15.044300085319005,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:08","end":"07:37","startHours":6.125118310796586,"endHours":7.611648606550323,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:35","startHours":9.09817890230406,"endHours":10.584709198057794,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.899974862870227,"endHours":9.29638294173789,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.620628409381165,"endHours":6.9377548724752955,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:28","startHours":11.674831414943869,"endHours":12.467647572679196,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:32","end":"05:20","startHours":4.5394859953259346,"endHours":5.33230215306126,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:08","startHours":5.134098113627429,"endHours":6.125118310796586,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:03","end":"14:51","startHours":14.053279888149845,"endHours":14.84609604588517,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.81736067682648,"endHours":18.217360676826477,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:31","startHours":18.017360676826478,"endHours":18.512870775411056,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.767360676826478,"endHours":19.517360676826478,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:28","startHours":23.67483141494387,"endHours":24.467647572679194,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:08","end":"07:37","startHours":6.125118310796586,"endHours":7.611648606550323,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:06","startHours":7.611648606550323,"endHours":9.09817890230406,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:35","startHours":9.09817890230406,"endHours":10.584709198057794,"quality":"inauspicious"},{"name":"Chala","start":"10:35","end":"12:04","startHours":10.584709198057794,"endHours":12.071239493811532,"quality":"neutral"},{"name":"Labha","start":"12:04","end":"13:33","startHours":12.071239493811532,"endHours":13.557769789565267,"quality":"auspicious"},{"name":"Amṛta","start":"13:33","end":"15:03","startHours":13.557769789565267,"endHours":15.044300085319005,"quality":"auspicious"},{"name":"Kāla","start":"15:03","end":"16:32","startHours":15.044300085319005,"endHours":16.53083038107274,"quality":"inauspicious"},{"name":"Śubha","start":"16:32","end":"18:01","startHours":16.53083038107274,"endHours":18.017360676826478,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:01","end":"19:32","startHours":18.017360676826478,"endHours":19.53083038107274,"quality":"auspicious"},{"name":"Kāla","start":"19:32","end":"21:03","startHours":19.53083038107274,"endHours":21.044300085319005,"quality":"inauspicious"},{"name":"Śubha","start":"21:03","end":"22:33","startHours":21.044300085319005,"endHours":22.55776978956527,"quality":"auspicious"},{"name":"Roga","start":"22:33","end":"00:04","startHours":22.55776978956527,"endHours":24.071239493811532,"quality":"inauspicious"},{"name":"Udveg","start":"00:04","end":"01:35","startHours":24.071239493811532,"endHours":25.584709198057794,"quality":"inauspicious"},{"name":"Chala","start":"01:35","end":"03:06","startHours":25.584709198057794,"endHours":27.09817890230406,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:37","startHours":27.09817890230406,"endHours":28.611648606550325,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:08","startHours":28.611648606550325,"endHours":30.125118310796587,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.125118310796586,"endHours":7.125118310796586,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.125118310796586,"endHours":8.125118310796587,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.125118310796587,"endHours":9.125118310796587,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.125118310796587,"endHours":10.125118310796587,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.125118310796587,"endHours":11.125118310796587,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.125118310796587,"endHours":12.125118310796587,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.125118310796587,"endHours":13.125118310796587,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.125118310796587,"endHours":14.125118310796587,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.125118310796587,"endHours":15.125118310796587,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.125118310796587,"endHours":16.125118310796587,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.125118310796587,"endHours":17.125118310796587,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.125118310796587,"endHours":18.125118310796587,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.125118310796587,"endHours":19.125118310796587,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.125118310796587,"endHours":20.125118310796587,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.125118310796587,"endHours":21.125118310796587,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.125118310796587,"endHours":22.125118310796587,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.125118310796587,"endHours":23.125118310796587,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.125118310796587,"endHours":24.125118310796587,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.125118310796587,"endHours":25.125118310796587,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.125118310796587,"endHours":26.125118310796587,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.125118310796587,"endHours":27.125118310796587,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.125118310796587,"endHours":28.125118310796587,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.125118310796587,"endHours":29.125118310796587,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.125118310796587,"endHours":30.125118310796587,"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","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.252044960673281,"eotMinutes":14.85683037130801,"ayanamsa":23.6824}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Aṣṭamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"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":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","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 October 15, 1987 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 15, 1987 CE for Erode, Tamil Nadu: Kṛṣṇa Aṣṭamī, sūryodaya 06:08, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1987-10-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1987-10-15","sa":"https://sa.vidhyamitra.com/city/erode/1987-10-15","hi":"https://hi.vidhyamitra.com/city/erode/1987-10-15","x-default":"https://vidhyamitra.com/city/erode/1987-10-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T11:34:21.837Z","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":"2026-05-31T11:34:21.837Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T11:34:21.837Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}