{"id":"vidhyamitra:city-day:erode:1931-07-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1931-07-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1931-07-09","date_display":"July 9, 1931 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":1931,"month":7,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426531.770833,"kali_year":5033,"ahargana":1838066.2708,"sun":{"sidereal_longitude":82.7581,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":5.6835,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":282.9255,"elapsed_within_tithi_degrees":6.9255},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":5.6835,"elapsed_within_degrees":5.6835},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.4416},"karana":{"half_tithi_index":47,"name":"Gara"},"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":1931,"month":7,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2426531.770833,"ahargana":1838066.2708,"kali_year":5033,"ayanamsa_lahiri":22.8963,"grahas":{"sun":{"sidereal_longitude":82.98340000000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"moon":{"sidereal_longitude":4.510600000000011,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":1.1848},"mars":{"sidereal_longitude":143.9173,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":94.56060000000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":95.89670000000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"venus":{"sidereal_longitude":67.34300000000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":267.81269999999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":350.4036,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":170.4036,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1931,"month":7,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426531.770833,"kali_year":5033,"ahargana":1838066.2708,"sun":{"sidereal_longitude":82.7581,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":5.6835,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":282.9255,"elapsed_within_tithi_degrees":6.9255},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":5.6835,"elapsed_within_degrees":5.6835},"yoga":{"number":7,"name":"Sukarma","sum_longitude":88.4416},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.185,"elongation":77.075},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.185,"opposition_distance":102.925}},"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":"06:01","sunsetLocal":"18:47","solarNoonLocal":"12:24","dayLengthHours":12.758250245552048,"dayLengthDisplay":"12 Hours 45 Mins 30 Secs","nightLengthDisplay":"11 Hours 14 Mins 30 Secs","moonriseLocal":"00:59","moonsetLocal":"13:21","rahuKala":{"name":"Rāhu Kāla","start":"14:00","end":"15:35","startHours":13.994109291155084,"endHours":15.588890571849092,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:01","end":"07:37","startHours":6.020202887685055,"endHours":7.614984168379061,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:13","end":"10:48","startHours":9.209765449073068,"endHours":10.804546729767072,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:25","startHours":8.997127944980534,"endHours":9.422402953165602,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:33","end":"06:54","startHours":6.55179664791639,"endHours":6.892016654464445,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:49","startHours":11.974053002276012,"endHours":12.824603018646147,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:10","startHours":4.319102854944782,"endHours":5.169652871314918,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:57","end":"06:01","startHours":4.957015367222384,"endHours":6.020202887685055,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:32","end":"15:23","startHours":14.525703051386422,"endHours":15.37625306775656,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:35","end":"18:59","startHours":18.578453133237105,"endHours":18.978453133237103,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:47","end":"19:19","startHours":18.778453133237104,"endHours":19.31004689346844,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:32","end":"20:17","startHours":18.528453133237104,"endHours":20.278453133237104,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:49","startHours":23.974053002276012,"endHours":24.824603018646147,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:01","end":"07:37","startHours":6.020202887685055,"endHours":7.614984168379061,"quality":"auspicious"},{"name":"Roga","start":"07:37","end":"09:13","startHours":7.614984168379061,"endHours":9.209765449073068,"quality":"inauspicious"},{"name":"Udveg","start":"09:13","end":"10:48","startHours":9.209765449073068,"endHours":10.804546729767072,"quality":"inauspicious"},{"name":"Chala","start":"10:48","end":"12:24","startHours":10.804546729767072,"endHours":12.39932801046108,"quality":"neutral"},{"name":"Labha","start":"12:24","end":"14:00","startHours":12.39932801046108,"endHours":13.994109291155084,"quality":"auspicious"},{"name":"Amṛta","start":"14:00","end":"15:35","startHours":13.994109291155084,"endHours":15.588890571849092,"quality":"auspicious"},{"name":"Kāla","start":"15:35","end":"17:11","startHours":15.588890571849092,"endHours":17.183671852543096,"quality":"inauspicious"},{"name":"Śubha","start":"17:11","end":"18:47","startHours":17.183671852543096,"endHours":18.778453133237104,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:47","end":"20:11","startHours":18.778453133237104,"endHours":20.1836718525431,"quality":"auspicious"},{"name":"Kāla","start":"20:11","end":"21:35","startHours":20.1836718525431,"endHours":21.58889057184909,"quality":"inauspicious"},{"name":"Śubha","start":"21:35","end":"23:00","startHours":21.58889057184909,"endHours":22.994109291155084,"quality":"auspicious"},{"name":"Roga","start":"23:00","end":"00:24","startHours":22.994109291155084,"endHours":24.39932801046108,"quality":"inauspicious"},{"name":"Udveg","start":"00:24","end":"01:48","startHours":24.39932801046108,"endHours":25.804546729767075,"quality":"inauspicious"},{"name":"Chala","start":"01:48","end":"03:13","startHours":25.804546729767075,"endHours":27.209765449073068,"quality":"neutral"},{"name":"Labha","start":"03:13","end":"04:37","startHours":27.209765449073068,"endHours":28.61498416837906,"quality":"auspicious"},{"name":"Amṛta","start":"04:37","end":"06:01","startHours":28.61498416837906,"endHours":30.020202887685056,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.020202887685055,"endHours":7.020202887685055,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.020202887685055,"endHours":8.020202887685056,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.020202887685056,"endHours":9.020202887685056,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.020202887685056,"endHours":10.020202887685056,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.020202887685056,"endHours":11.020202887685056,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.020202887685056,"endHours":12.020202887685056,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.020202887685056,"endHours":13.020202887685056,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.020202887685056,"endHours":14.020202887685056,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.020202887685056,"endHours":15.020202887685056,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.020202887685056,"endHours":16.020202887685056,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.020202887685056,"endHours":17.020202887685056,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.020202887685056,"endHours":18.020202887685056,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.020202887685056,"endHours":19.020202887685056,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.020202887685056,"endHours":20.020202887685056,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.020202887685056,"endHours":21.020202887685056,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.020202887685056,"endHours":22.020202887685056,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.020202887685056,"endHours":23.020202887685056,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.020202887685056,"endHours":24.020202887685056,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.020202887685056,"endHours":25.020202887685056,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.020202887685056,"endHours":26.020202887685056,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.020202887685056,"endHours":27.020202887685056,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.020202887685056,"endHours":28.020202887685056,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.020202887685056,"endHours":29.020202887685056,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.020202887685056,"endHours":30.020202887685056,"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"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.491993112277054,"eotMinutes":-4.828480627664775,"ayanamsa":22.8963}},"calendars":{"vikram_samvat":1988,"vikram_samvatsara":"Tāraṇa","saka_samvat":1853,"saka_samvatsara":"Prajāpati","bengali_samvat":1338,"malayalam_era":1107,"nanakshahi_year":462,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha (Adhika) Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha (Adhika) Kṛṣṇa Navamī · Vikram 1988 Tāraṇa · Śaka 1853 Prajāpati"},"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":"-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 July 9, 1931 CE · Erode, Tamil Nadu · Vidhyamitra","description":"July 9, 1931 CE for Erode, Tamil Nadu: Kṛṣṇa Navamī, sūryodaya 06:01, sūryāsta 18:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1931-07-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1931-07-09","sa":"https://sa.vidhyamitra.com/city/erode/1931-07-09","hi":"https://hi.vidhyamitra.com/city/erode/1931-07-09","x-default":"https://vidhyamitra.com/city/erode/1931-07-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:43:41.765Z","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":"2026-05-31T12:43:41.765Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:43:41.765Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}