{"id":"vidhyamitra:city-day:kolhapur:2030-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2030-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2030-09-13","date_display":"September 13, 2030 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":2030,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462757.770833,"kali_year":5132,"ahargana":1874292.2708,"sun":{"sidereal_longitude":145.2365,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":341.3016,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.0651,"elapsed_within_tithi_degrees":4.0651},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":341.3016,"elapsed_within_degrees":7.9683},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":126.5381},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2030,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462757.770833,"ahargana":1874292.2708,"kali_year":5132,"ayanamsa_lahiri":24.2818,"grahas":{"sun":{"sidereal_longitude":146.03250000000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":340.0098,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false,"latitude":4.2193},"mars":{"sidereal_longitude":113.18299999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":128.07780000000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":208.51800000000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":135.7428,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":44.487300000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":230.9758,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":50.9758,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2030,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462757.770833,"kali_year":5132,"ahargana":1874292.2708,"sun":{"sidereal_longitude":145.2365,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":341.3016,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.0651,"elapsed_within_tithi_degrees":4.0651},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":341.3016,"elapsed_within_degrees":7.9683},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":126.5381},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.219,"elongation":163.935},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.219,"opposition_distance":16.065}},"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":"18:36","solarNoonLocal":"12:28","dayLengthHours":12.270033562465212,"dayLengthDisplay":"12 Hours 16 Mins 12 Secs","nightLengthDisplay":"11 Hours 43 Mins 48 Secs","moonriseLocal":"19:20","moonsetLocal":"07:29","rahuKala":{"name":"Rāhu Kāla","start":"10:56","end":"12:28","startHours":10.93746128919408,"endHours":12.471215484502231,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:32","end":"17:04","startHours":15.538723875118535,"endHours":17.072478070426687,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:52","end":"09:24","startHours":7.869952898577777,"endHours":9.403707093885929,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:36","startHours":9.199206534511509,"endHours":9.608207653260349,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:10","startHours":6.847450101705677,"endHours":7.17465099670475,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:53","startHours":12.062214365753393,"endHours":12.880216603251073,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:42","end":"05:31","startHours":4.700194228274265,"endHours":5.518196465771945,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:19","end":"06:20","startHours":5.313695906397525,"endHours":6.336198703269626,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:20","startHours":14.516221078246435,"endHours":15.334223315744115,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.40623226573484,"endHours":18.806232265734838,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:07","startHours":18.60623226573484,"endHours":19.11748366417089,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.35623226573484,"endHours":20.10623226573484,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:53","startHours":24.06221436575339,"endHours":24.88021660325107,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:20","end":"07:52","startHours":6.336198703269626,"endHours":7.869952898577777,"quality":"neutral"},{"name":"Labha","start":"07:52","end":"09:24","startHours":7.869952898577777,"endHours":9.403707093885929,"quality":"auspicious"},{"name":"Amṛta","start":"09:24","end":"10:56","startHours":9.403707093885929,"endHours":10.93746128919408,"quality":"auspicious"},{"name":"Kāla","start":"10:56","end":"12:28","startHours":10.93746128919408,"endHours":12.471215484502231,"quality":"inauspicious"},{"name":"Śubha","start":"12:28","end":"14:00","startHours":12.471215484502231,"endHours":14.004969679810383,"quality":"auspicious"},{"name":"Roga","start":"14:00","end":"15:32","startHours":14.004969679810383,"endHours":15.538723875118535,"quality":"inauspicious"},{"name":"Udveg","start":"15:32","end":"17:04","startHours":15.538723875118535,"endHours":17.072478070426687,"quality":"inauspicious"},{"name":"Chala","start":"17:04","end":"18:36","startHours":17.072478070426687,"endHours":18.60623226573484,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:36","end":"20:04","startHours":18.60623226573484,"endHours":20.072478070426687,"quality":"inauspicious"},{"name":"Udveg","start":"20:04","end":"21:32","startHours":20.072478070426687,"endHours":21.538723875118535,"quality":"inauspicious"},{"name":"Chala","start":"21:32","end":"23:00","startHours":21.538723875118535,"endHours":23.004969679810387,"quality":"neutral"},{"name":"Labha","start":"23:00","end":"00:28","startHours":23.004969679810387,"endHours":24.47121548450223,"quality":"auspicious"},{"name":"Amṛta","start":"00:28","end":"01:56","startHours":24.47121548450223,"endHours":25.937461289194083,"quality":"auspicious"},{"name":"Kāla","start":"01:56","end":"03:24","startHours":25.937461289194083,"endHours":27.40370709388593,"quality":"inauspicious"},{"name":"Śubha","start":"03:24","end":"04:52","startHours":27.40370709388593,"endHours":28.86995289857778,"quality":"auspicious"},{"name":"Roga","start":"04:52","end":"06:20","startHours":28.86995289857778,"endHours":30.336198703269627,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.336198703269626,"endHours":7.336198703269626,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.336198703269626,"endHours":8.336198703269627,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.336198703269627,"endHours":9.336198703269627,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.336198703269627,"endHours":10.336198703269627,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.336198703269627,"endHours":11.336198703269627,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.336198703269627,"endHours":12.336198703269627,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.336198703269627,"endHours":13.336198703269627,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.336198703269627,"endHours":14.336198703269627,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.336198703269627,"endHours":15.336198703269627,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.336198703269627,"endHours":16.336198703269627,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.336198703269627,"endHours":17.336198703269627,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.336198703269627,"endHours":18.336198703269627,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.336198703269627,"endHours":19.336198703269627,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.336198703269627,"endHours":20.336198703269627,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.336198703269627,"endHours":21.336198703269627,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.336198703269627,"endHours":22.336198703269627,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.336198703269627,"endHours":23.336198703269627,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.336198703269627,"endHours":24.336198703269627,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.336198703269627,"endHours":25.336198703269627,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.336198703269627,"endHours":26.336198703269627,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.336198703269627,"endHours":27.336198703269627,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.336198703269627,"endHours":28.336198703269627,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.336198703269627,"endHours":29.336198703269627,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.336198703269627,"endHours":30.336198703269627,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"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":3.8368625943802517,"eotMinutes":4.753870929866006,"ayanamsa":24.2818}},"calendars":{"vikram_samvat":2087,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1952,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1437,"malayalam_era":1206,"nanakshahi_year":561,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Dvitīyā · Vikram 2087 Rudhirodgāri · Śaka 1952 Sādhāraṇa"},"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":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"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, 2030 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"September 13, 2030 CE for Kolhāpur, Maharashtra: Kṛṣṇa Dvitīyā, sūryodaya 06:20, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2030-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2030-09-13","sa":"https://sa.vidhyamitra.com/city/kolhapur/2030-09-13","hi":"https://hi.vidhyamitra.com/city/kolhapur/2030-09-13","x-default":"https://vidhyamitra.com/city/kolhapur/2030-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T23:30:40.975Z","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":"2026-05-14T23:30:40.975Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T23:30:40.975Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}