{"id":"vidhyamitra:city-day:kolhapur:1979-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/1979-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-09-13","date_display":"September 13, 1979 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":1979,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444129.770833,"kali_year":5081,"ahargana":1855664.2708,"sun":{"sidereal_longitude":145.4274,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":50.0354,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.6081,"elapsed_within_tithi_degrees":0.6081},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":50.0354,"elapsed_within_degrees":10.0354},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.4628},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":1979,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444129.770833,"ahargana":1855664.2708,"kali_year":5081,"ayanamsa_lahiri":23.5694,"grahas":{"sun":{"sidereal_longitude":146.099427,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":53.47872699999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false,"latitude":-4.4971},"mars":{"sidereal_longitude":89.49962700000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":146.19372699999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":122.85182699999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":151.43782699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":143.777327,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":137.9768,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":317.9768,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1979,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444129.770833,"kali_year":5081,"ahargana":1855664.2708,"sun":{"sidereal_longitude":145.4274,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":50.0354,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":264.6081,"elapsed_within_tithi_degrees":0.6081},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":50.0354,"elapsed_within_degrees":10.0354},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.4628},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.497,"elongation":95.392},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.497,"opposition_distance":84.608}},"eclipse_window_40days":[]},"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":"06:20","sunsetLocal":"18:37","solarNoonLocal":"12:28","dayLengthHours":12.28026517205802,"dayLengthDisplay":"12 Hours 16 Mins 49 Secs","nightLengthDisplay":"11 Hours 43 Mins 11 Secs","moonriseLocal":"23:46","moonsetLocal":"12:49","rahuKala":{"name":"Rāhu Kāla","start":"14:00","end":"15:32","startHours":14.006248631009488,"endHours":15.541281777516737,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:20","end":"07:52","startHours":6.331082898473224,"endHours":7.866116044980476,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:24","end":"10:56","startHours":9.401149191487729,"endHours":10.936182337994982,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:36","startHours":9.196478105286761,"endHours":9.605820277688697,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:10","startHours":6.842760613975642,"endHours":7.170234351897189,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:53","startHours":12.0618733121003,"endHours":12.880557656904166,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:42","end":"05:31","startHours":4.693714208865488,"endHours":5.512398553669356,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:18","end":"06:20","startHours":5.307727467468389,"endHours":6.331082898473224,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:20","startHours":14.517926346511903,"endHours":15.336610691315771,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:25","end":"18:49","startHours":18.411348070531243,"endHours":18.811348070531242,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:37","end":"19:07","startHours":18.611348070531243,"endHours":19.12302578603366,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:22","end":"20:07","startHours":18.361348070531243,"endHours":20.111348070531243,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:53","startHours":24.061873312100296,"endHours":24.880557656904166,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:20","end":"07:52","startHours":6.331082898473224,"endHours":7.866116044980476,"quality":"auspicious"},{"name":"Roga","start":"07:52","end":"09:24","startHours":7.866116044980476,"endHours":9.401149191487729,"quality":"inauspicious"},{"name":"Udveg","start":"09:24","end":"10:56","startHours":9.401149191487729,"endHours":10.936182337994982,"quality":"inauspicious"},{"name":"Chala","start":"10:56","end":"12:28","startHours":10.936182337994982,"endHours":12.471215484502235,"quality":"neutral"},{"name":"Labha","start":"12:28","end":"14:00","startHours":12.471215484502235,"endHours":14.006248631009488,"quality":"auspicious"},{"name":"Amṛta","start":"14:00","end":"15:32","startHours":14.006248631009488,"endHours":15.541281777516737,"quality":"auspicious"},{"name":"Kāla","start":"15:32","end":"17:05","startHours":15.541281777516737,"endHours":17.07631492402399,"quality":"inauspicious"},{"name":"Śubha","start":"17:05","end":"18:37","startHours":17.07631492402399,"endHours":18.611348070531243,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:37","end":"20:05","startHours":18.611348070531243,"endHours":20.07631492402399,"quality":"auspicious"},{"name":"Kāla","start":"20:05","end":"21:32","startHours":20.07631492402399,"endHours":21.541281777516737,"quality":"inauspicious"},{"name":"Śubha","start":"21:32","end":"23:00","startHours":21.541281777516737,"endHours":23.006248631009484,"quality":"auspicious"},{"name":"Roga","start":"23:00","end":"00:28","startHours":23.006248631009484,"endHours":24.47121548450223,"quality":"inauspicious"},{"name":"Udveg","start":"00:28","end":"01:56","startHours":24.47121548450223,"endHours":25.93618233799498,"quality":"inauspicious"},{"name":"Chala","start":"01:56","end":"03:24","startHours":25.93618233799498,"endHours":27.40114919148773,"quality":"neutral"},{"name":"Labha","start":"03:24","end":"04:52","startHours":27.40114919148773,"endHours":28.866116044980476,"quality":"auspicious"},{"name":"Amṛta","start":"04:52","end":"06:20","startHours":28.866116044980476,"endHours":30.331082898473223,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.331082898473224,"endHours":7.331082898473224,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.331082898473224,"endHours":8.331082898473223,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.331082898473223,"endHours":9.331082898473223,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.331082898473223,"endHours":10.331082898473223,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.331082898473223,"endHours":11.331082898473223,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.331082898473223,"endHours":12.331082898473223,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.331082898473223,"endHours":13.331082898473223,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.331082898473223,"endHours":14.331082898473223,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.331082898473223,"endHours":15.331082898473223,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.331082898473223,"endHours":16.331082898473223,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.331082898473223,"endHours":17.331082898473223,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.331082898473223,"endHours":18.331082898473223,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.331082898473223,"endHours":19.331082898473223,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.331082898473223,"endHours":20.331082898473223,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.331082898473223,"endHours":21.331082898473223,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.331082898473223,"endHours":22.331082898473223,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.331082898473223,"endHours":23.331082898473223,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.331082898473223,"endHours":24.331082898473223,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.331082898473223,"endHours":25.331082898473223,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.331082898473223,"endHours":26.331082898473223,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.331082898473223,"endHours":27.331082898473223,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.331082898473223,"endHours":28.331082898473223,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.331082898473223,"endHours":29.331082898473223,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.331082898473223,"endHours":30.331082898473223,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.090286363335081,"eotMinutes":4.753870929866006,"ayanamsa":23.5694}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"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":"Siṃha (Āvaṇi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Aṣṭamī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"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 + Rohiṇī","url":"/day/-3226-07-09","relevance":1}]},"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 13, 1979 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"September 13, 1979 CE for Kolhāpur, Maharashtra: Kṛṣṇa Aṣṭamī, sūryodaya 06:20, sūryāsta 18:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/1979-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/1979-09-13","sa":"https://sa.vidhyamitra.com/city/kolhapur/1979-09-13","hi":"https://hi.vidhyamitra.com/city/kolhapur/1979-09-13","x-default":"https://vidhyamitra.com/city/kolhapur/1979-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:05:49.543Z","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":"2026-05-31T23:05:49.543Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:05:49.543Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}