{"id":"vidhyamitra:city-day:erode:1991-10-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/erode/1991-10-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1991-10-07","date_display":"October 7, 1991 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":1991,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448536.770833,"kali_year":5093,"ahargana":1860071.2708,"sun":{"sidereal_longitude":168.8134,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":159.6835,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.8701,"elapsed_within_tithi_degrees":2.8701},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.6835,"elapsed_within_degrees":13.0169},"yoga":{"number":25,"name":"Brahma","sum_longitude":328.497},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1991,"month":10,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448536.770833,"ahargana":1860071.2708,"kali_year":5093,"ayanamsa_lahiri":23.7379,"grahas":{"sun":{"sidereal_longitude":169.53734699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":158.57624699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":-4.3506},"mars":{"sidereal_longitude":179.85244699999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":172.09914700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":131.134747,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":126.421247,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":276.3321470000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":264.4728,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":84.4728,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"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":1991,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448536.770833,"kali_year":5093,"ahargana":1860071.2708,"sun":{"sidereal_longitude":168.8134,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":159.6835,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.8701,"elapsed_within_tithi_degrees":2.8701},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":159.6835,"elapsed_within_degrees":13.0169},"yoga":{"number":25,"name":"Brahma","sum_longitude":328.497},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.351,"elongation":9.13},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.351,"opposition_distance":170.87}},"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":"06:07","sunsetLocal":"18:05","solarNoonLocal":"12:06","dayLengthHours":11.973225556698903,"dayLengthDisplay":"11 Hours 58 Mins 24 Secs","nightLengthDisplay":"12 Hours 01 Mins 36 Secs","moonriseLocal":"05:21","moonsetLocal":"17:24","rahuKala":{"name":"Rāhu Kāla","start":"07:37","end":"09:07","startHours":7.6129145794209165,"endHours":9.10956777400828,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:36","end":"12:06","startHours":10.606220968595643,"endHours":12.102874163183007,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:36","end":"15:06","startHours":13.59952735777037,"endHours":15.09618055235773,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:19","startHours":8.910014014729965,"endHours":9.309121533286595,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.615145783029342,"endHours":6.934431797874646,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:30","startHours":11.703766644626375,"endHours":12.501981681739634,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:19","startHours":4.519831310607033,"endHours":5.318046347720294,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:07","startHours":5.1184925884419785,"endHours":6.116261384833554,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:54","startHours":14.098411755966158,"endHours":14.896626793079419,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:53","end":"18:17","startHours":17.889486941532457,"endHours":18.289486941532456,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:05","end":"18:35","startHours":18.089486941532456,"endHours":18.588371339728244,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:50","end":"19:35","startHours":17.839486941532456,"endHours":19.589486941532456,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:30","startHours":23.703766644626374,"endHours":24.501981681739633,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:07","end":"07:37","startHours":6.116261384833554,"endHours":7.6129145794209165,"quality":"auspicious"},{"name":"Kāla","start":"07:37","end":"09:07","startHours":7.6129145794209165,"endHours":9.10956777400828,"quality":"inauspicious"},{"name":"Śubha","start":"09:07","end":"10:36","startHours":9.10956777400828,"endHours":10.606220968595643,"quality":"auspicious"},{"name":"Roga","start":"10:36","end":"12:06","startHours":10.606220968595643,"endHours":12.102874163183007,"quality":"inauspicious"},{"name":"Udveg","start":"12:06","end":"13:36","startHours":12.102874163183007,"endHours":13.59952735777037,"quality":"inauspicious"},{"name":"Chala","start":"13:36","end":"15:06","startHours":13.59952735777037,"endHours":15.09618055235773,"quality":"neutral"},{"name":"Labha","start":"15:06","end":"16:36","startHours":15.09618055235773,"endHours":16.592833746945093,"quality":"auspicious"},{"name":"Amṛta","start":"16:36","end":"18:05","startHours":16.592833746945093,"endHours":18.089486941532456,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:05","end":"19:36","startHours":18.089486941532456,"endHours":19.592833746945093,"quality":"neutral"},{"name":"Labha","start":"19:36","end":"21:06","startHours":19.592833746945093,"endHours":21.09618055235773,"quality":"auspicious"},{"name":"Amṛta","start":"21:06","end":"22:36","startHours":21.09618055235773,"endHours":22.59952735777037,"quality":"auspicious"},{"name":"Kāla","start":"22:36","end":"00:06","startHours":22.59952735777037,"endHours":24.102874163183003,"quality":"inauspicious"},{"name":"Śubha","start":"00:06","end":"01:36","startHours":24.102874163183003,"endHours":25.606220968595643,"quality":"auspicious"},{"name":"Roga","start":"01:36","end":"03:07","startHours":25.606220968595643,"endHours":27.10956777400828,"quality":"inauspicious"},{"name":"Udveg","start":"03:07","end":"04:37","startHours":27.10956777400828,"endHours":28.612914579420917,"quality":"inauspicious"},{"name":"Chala","start":"04:37","end":"06:07","startHours":28.612914579420917,"endHours":30.116261384833553,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.116261384833554,"endHours":7.116261384833554,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.116261384833554,"endHours":8.116261384833553,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.116261384833553,"endHours":9.116261384833553,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.116261384833553,"endHours":10.116261384833553,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.116261384833553,"endHours":11.116261384833553,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.116261384833553,"endHours":12.116261384833553,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.116261384833553,"endHours":13.116261384833553,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.116261384833553,"endHours":14.116261384833553,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.116261384833553,"endHours":15.116261384833553,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.116261384833553,"endHours":16.116261384833553,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.116261384833553,"endHours":17.116261384833553,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.116261384833553,"endHours":18.116261384833553,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.116261384833553,"endHours":19.116261384833553,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.116261384833553,"endHours":20.116261384833553,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.116261384833553,"endHours":21.116261384833553,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.116261384833553,"endHours":22.116261384833553,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.116261384833553,"endHours":23.116261384833553,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.116261384833553,"endHours":24.116261384833553,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.116261384833553,"endHours":25.116261384833553,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.116261384833553,"endHours":26.116261384833553,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.116261384833553,"endHours":27.116261384833553,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.116261384833553,"endHours":28.116261384833553,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.116261384833553,"endHours":29.116261384833553,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.116261384833553,"endHours":30.116261384833553,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","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":-5.240184279125021,"eotMinutes":12.958750209019716,"ayanamsa":23.7379}},"calendars":{"vikram_samvat":2048,"vikram_samvatsara":"Tāraṇa","saka_samvat":1913,"saka_samvatsara":"Prajāpati","bengali_samvat":1398,"malayalam_era":1167,"nanakshahi_year":522,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","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":"Āśvina Kṛṣṇa Amāvasyā · Vikram 2048 Tāraṇa · Śaka 1913 Prajāpati"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":1}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 7, 1991 CE · Erode, Tamil Nadu · Vidhyamitra","description":"October 7, 1991 CE for Erode, Tamil Nadu: Kṛṣṇa Amāvasyā, sūryodaya 06:07, sūryāsta 18:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/erode/1991-10-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/erode/1991-10-07","sa":"https://sa.vidhyamitra.com/city/erode/1991-10-07","hi":"https://hi.vidhyamitra.com/city/erode/1991-10-07","x-default":"https://vidhyamitra.com/city/erode/1991-10-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:08:32.527Z","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":"2026-06-01T03:08:32.527Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:08:32.527Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}