{"id":"vidhyamitra:city-day:kolhapur:1980-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/1980-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-09-01","date_display":"September 1, 1980 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":1980,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444483.770833,"kali_year":5082,"ahargana":1856018.2708,"sun":{"sidereal_longitude":134.5351,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":32.3544,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.8194,"elapsed_within_tithi_degrees":5.8194},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.3544,"elapsed_within_degrees":5.6878},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":166.8895},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":1980,"month":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444483.770833,"ahargana":1856018.2708,"kali_year":5082,"ayanamsa_lahiri":23.5829,"grahas":{"sun":{"sidereal_longitude":135.175901,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":35.89930099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":-4.4933},"mars":{"sidereal_longitude":188.543501,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":140.66700100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":144.472401,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":89.733001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":153.651301,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":119.2202,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":299.2202,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1980,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444483.770833,"kali_year":5082,"ahargana":1856018.2708,"sun":{"sidereal_longitude":134.5351,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":32.3544,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.8194,"elapsed_within_tithi_degrees":5.8194},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":32.3544,"elapsed_within_degrees":5.6878},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":166.8895},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.493,"elongation":102.181},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.493,"opposition_distance":77.819}},"eclipse_window_40days":[{"offset_days":-6,"type":"lunar","occurs":true,"moon_latitude":-0.515,"opposition_distance":2.645}]},"city":{"slug":"kolhapur","name":"Kolhāpur, Maharashtra","lat":16.705,"lon":74.2433,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kolhapur","name":"Kolhāpur, Maharashtra","lat":16.705,"lon":74.2433,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:19","sunsetLocal":"18:46","solarNoonLocal":"12:33","dayLengthHours":12.451291176903968,"dayLengthDisplay":"12 Hours 27 Mins 05 Secs","nightLengthDisplay":"11 Hours 32 Mins 55 Secs","moonriseLocal":"23:28","moonsetLocal":"12:23","rahuKala":{"name":"Rāhu Kāla","start":"07:52","end":"09:26","startHours":7.873278845143123,"endHours":9.429690242256118,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:59","end":"12:33","startHours":10.986101639369116,"endHours":12.542513036482111,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:06","end":"15:39","startHours":14.098924433595107,"endHours":15.655335830708104,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:38","startHours":9.222168722641053,"endHours":9.637211761871185,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:50","end":"07:10","startHours":6.8356712470677925,"endHours":7.167705678451898,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:57","startHours":12.127469997251978,"endHours":12.957556075712244,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:39","end":"05:29","startHours":4.656695291109598,"endHours":5.486781369569862,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:17","end":"06:19","startHours":5.279259849954796,"endHours":6.316867448030127,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:27","startHours":14.617728232632771,"endHours":15.447814311093035,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:34","end":"18:58","startHours":18.568158624934096,"endHours":18.968158624934095,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:46","end":"19:17","startHours":18.768158624934095,"endHours":19.28696242397176,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:31","end":"20:16","startHours":18.518158624934095,"endHours":20.268158624934095,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:57","startHours":24.127469997251982,"endHours":24.957556075712244,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:19","end":"07:52","startHours":6.316867448030127,"endHours":7.873278845143123,"quality":"auspicious"},{"name":"Kāla","start":"07:52","end":"09:26","startHours":7.873278845143123,"endHours":9.429690242256118,"quality":"inauspicious"},{"name":"Śubha","start":"09:26","end":"10:59","startHours":9.429690242256118,"endHours":10.986101639369116,"quality":"auspicious"},{"name":"Roga","start":"10:59","end":"12:33","startHours":10.986101639369116,"endHours":12.542513036482111,"quality":"inauspicious"},{"name":"Udveg","start":"12:33","end":"14:06","startHours":12.542513036482111,"endHours":14.098924433595107,"quality":"inauspicious"},{"name":"Chala","start":"14:06","end":"15:39","startHours":14.098924433595107,"endHours":15.655335830708104,"quality":"neutral"},{"name":"Labha","start":"15:39","end":"17:13","startHours":15.655335830708104,"endHours":17.2117472278211,"quality":"auspicious"},{"name":"Amṛta","start":"17:13","end":"18:46","startHours":17.2117472278211,"endHours":18.768158624934095,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:46","end":"20:13","startHours":18.768158624934095,"endHours":20.2117472278211,"quality":"neutral"},{"name":"Labha","start":"20:13","end":"21:39","startHours":20.2117472278211,"endHours":21.655335830708104,"quality":"auspicious"},{"name":"Amṛta","start":"21:39","end":"23:06","startHours":21.655335830708104,"endHours":23.09892443359511,"quality":"auspicious"},{"name":"Kāla","start":"23:06","end":"00:33","startHours":23.09892443359511,"endHours":24.542513036482113,"quality":"inauspicious"},{"name":"Śubha","start":"00:33","end":"01:59","startHours":24.542513036482113,"endHours":25.986101639369117,"quality":"auspicious"},{"name":"Roga","start":"01:59","end":"03:26","startHours":25.986101639369117,"endHours":27.429690242256118,"quality":"inauspicious"},{"name":"Udveg","start":"03:26","end":"04:52","startHours":27.429690242256118,"endHours":28.873278845143123,"quality":"inauspicious"},{"name":"Chala","start":"04:52","end":"06:19","startHours":28.873278845143123,"endHours":30.316867448030127,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.316867448030127,"endHours":7.316867448030127,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.316867448030127,"endHours":8.316867448030127,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.316867448030127,"endHours":9.316867448030127,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.316867448030127,"endHours":10.316867448030127,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.316867448030127,"endHours":11.316867448030127,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.316867448030127,"endHours":12.316867448030127,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.316867448030127,"endHours":13.316867448030127,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.316867448030127,"endHours":14.316867448030127,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.316867448030127,"endHours":15.316867448030127,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.316867448030127,"endHours":16.316867448030127,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.316867448030127,"endHours":17.316867448030127,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.316867448030127,"endHours":18.316867448030127,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.316867448030127,"endHours":19.316867448030127,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.316867448030127,"endHours":20.316867448030127,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.316867448030127,"endHours":21.316867448030127,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.316867448030127,"endHours":22.316867448030127,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.316867448030127,"endHours":23.316867448030127,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.316867448030127,"endHours":24.316867448030127,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.316867448030127,"endHours":25.316867448030127,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.316867448030127,"endHours":26.316867448030127,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.316867448030127,"endHours":27.316867448030127,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.316867448030127,"endHours":28.316867448030127,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.316867448030127,"endHours":29.316867448030127,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.316867448030127,"endHours":30.316867448030127,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.284959014990795,"eotMinutes":0.47601781107335894,"ayanamsa":23.5829}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Saptamī · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[{"id":"simha-sankranti","name":"Siṁha Saṅkrānti","name_sanskrit":"सिंह सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Leo.","vrata":false,"detection":{"sun_rashi":"Siṃha"},"precedence":5}],"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":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"kolhapur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 1, 1980 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"September 1, 1980 CE for Kolhāpur, Maharashtra: Kṛṣṇa Saptamī, sūryodaya 06:19, sūryāsta 18:46.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/1980-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/1980-09-01","sa":"https://sa.vidhyamitra.com/city/kolhapur/1980-09-01","hi":"https://hi.vidhyamitra.com/city/kolhapur/1980-09-01","x-default":"https://vidhyamitra.com/city/kolhapur/1980-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-24T12:36:23.228Z","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":"2026-05-24T12:36:23.228Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-24T12:36:23.228Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}