{"id":"vidhyamitra:city-day:kolhapur:2121-09-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2121-09-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2121-09-17","date_display":"September 17, 2121 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":2121,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495998.770833,"kali_year":5223,"ahargana":1907533.2708,"sun":{"sidereal_longitude":147.6197,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":207.6771,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.0573,"elapsed_within_tithi_degrees":0.0573},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.6771,"elapsed_within_degrees":7.6771},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":355.2968},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2121,"month":9,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2495998.770833,"ahargana":1907533.2708,"kali_year":5223,"ayanamsa_lahiri":25.5532,"grahas":{"sun":{"sidereal_longitude":148.64304900000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":204.675749,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false,"latitude":-3.9735},"mars":{"sidereal_longitude":188.442949,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":149.717349,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":113.36424899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":126.30264899999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":79.887249,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":269.7076,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":89.7076,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"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":2121,"month":9,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495998.770833,"kali_year":5223,"ahargana":1907533.2708,"sun":{"sidereal_longitude":147.6197,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":207.6771,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.0573,"elapsed_within_tithi_degrees":0.0573},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.6771,"elapsed_within_degrees":7.6771},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":355.2968},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.973,"elongation":60.057},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.973,"opposition_distance":119.943}},"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":"06:21","sunsetLocal":"18:33","solarNoonLocal":"12:27","dayLengthHours":12.208360247206596,"dayLengthDisplay":"12 Hours 12 Mins 30 Secs","nightLengthDisplay":"11 Hours 47 Mins 30 Secs","moonriseLocal":"10:30","moonsetLocal":"21:51","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"13:58","startHours":12.446453937410539,"endHours":13.972498968311363,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:52","end":"09:24","startHours":7.868318844708064,"endHours":9.394363875608889,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:55","end":"12:27","startHours":10.920408906509714,"endHours":12.446453937410539,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:36","startHours":9.190891204822112,"endHours":9.597836546395666,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:51","end":"07:11","startHours":6.850955490774181,"endHours":7.176511764033024,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:51","startHours":12.039508595836983,"endHours":12.85339927898409,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:43","end":"05:32","startHours":4.714492447513027,"endHours":5.528383130660133,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:19","end":"06:21","startHours":5.324910459873357,"endHours":6.34227381380724,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:18","startHours":14.481180645278304,"endHours":15.29507132842541,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:21","end":"18:45","startHours":18.350634061013835,"endHours":18.750634061013834,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:33","end":"19:04","startHours":18.550634061013834,"endHours":19.059315737980775,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:18","end":"20:03","startHours":18.300634061013834,"endHours":20.050634061013834,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:51","startHours":24.039508595836985,"endHours":24.853399278984092,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:21","end":"07:52","startHours":6.34227381380724,"endHours":7.868318844708064,"quality":"auspicious"},{"name":"Amṛta","start":"07:52","end":"09:24","startHours":7.868318844708064,"endHours":9.394363875608889,"quality":"auspicious"},{"name":"Kāla","start":"09:24","end":"10:55","startHours":9.394363875608889,"endHours":10.920408906509714,"quality":"inauspicious"},{"name":"Śubha","start":"10:55","end":"12:27","startHours":10.920408906509714,"endHours":12.446453937410539,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"13:58","startHours":12.446453937410539,"endHours":13.972498968311363,"quality":"inauspicious"},{"name":"Udveg","start":"13:58","end":"15:30","startHours":13.972498968311363,"endHours":15.498543999212185,"quality":"inauspicious"},{"name":"Chala","start":"15:30","end":"17:01","startHours":15.498543999212185,"endHours":17.02458903011301,"quality":"neutral"},{"name":"Labha","start":"17:01","end":"18:33","startHours":17.02458903011301,"endHours":18.550634061013834,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:33","end":"20:01","startHours":18.550634061013834,"endHours":20.02458903011301,"quality":"inauspicious"},{"name":"Chala","start":"20:01","end":"21:30","startHours":20.02458903011301,"endHours":21.498543999212185,"quality":"neutral"},{"name":"Labha","start":"21:30","end":"22:58","startHours":21.498543999212185,"endHours":22.972498968311363,"quality":"auspicious"},{"name":"Amṛta","start":"22:58","end":"00:27","startHours":22.972498968311363,"endHours":24.44645393741054,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:55","startHours":24.44645393741054,"endHours":25.920408906509714,"quality":"inauspicious"},{"name":"Śubha","start":"01:55","end":"03:24","startHours":25.920408906509714,"endHours":27.39436387560889,"quality":"auspicious"},{"name":"Roga","start":"03:24","end":"04:52","startHours":27.39436387560889,"endHours":28.868318844708064,"quality":"inauspicious"},{"name":"Udveg","start":"04:52","end":"06:21","startHours":28.868318844708064,"endHours":30.34227381380724,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:21","end":"07:21","startHours":6.34227381380724,"endHours":7.34227381380724,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:21","end":"08:21","startHours":7.34227381380724,"endHours":8.342273813807239,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:21","end":"09:21","startHours":8.342273813807239,"endHours":9.342273813807239,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:21","end":"10:21","startHours":9.342273813807239,"endHours":10.342273813807239,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:21","end":"11:21","startHours":10.342273813807239,"endHours":11.342273813807239,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:21","end":"12:21","startHours":11.342273813807239,"endHours":12.342273813807239,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:21","end":"13:21","startHours":12.342273813807239,"endHours":13.342273813807239,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:21","end":"14:21","startHours":13.342273813807239,"endHours":14.342273813807239,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:21","end":"15:21","startHours":14.342273813807239,"endHours":15.342273813807239,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:21","end":"16:21","startHours":15.342273813807239,"endHours":16.34227381380724,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:21","end":"17:21","startHours":16.34227381380724,"endHours":17.34227381380724,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:21","end":"18:21","startHours":17.34227381380724,"endHours":18.34227381380724,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:21","end":"19:21","startHours":18.34227381380724,"endHours":19.34227381380724,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:21","end":"20:21","startHours":19.34227381380724,"endHours":20.34227381380724,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:21","end":"21:21","startHours":20.34227381380724,"endHours":21.34227381380724,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:21","end":"22:21","startHours":21.34227381380724,"endHours":22.34227381380724,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:21","end":"23:21","startHours":22.34227381380724,"endHours":23.34227381380724,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:21","end":"00:21","startHours":23.34227381380724,"endHours":24.34227381380724,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:21","end":"01:21","startHours":24.34227381380724,"endHours":25.34227381380724,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:21","end":"02:21","startHours":25.34227381380724,"endHours":26.34227381380724,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:21","end":"03:21","startHours":26.34227381380724,"endHours":27.34227381380724,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:21","end":"04:21","startHours":27.34227381380724,"endHours":28.34227381380724,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:21","end":"05:21","startHours":28.34227381380724,"endHours":29.34227381380724,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:21","end":"06:21","startHours":29.34227381380724,"endHours":30.34227381380724,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Dhātṛ","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":2.3050164194042053,"eotMinutes":6.239563755367786,"ayanamsa":25.5532}},"calendars":{"vikram_samvat":2178,"vikram_samvatsara":"Jaya","saka_samvat":2043,"saka_samvatsara":"Vṛṣa","bengali_samvat":1528,"malayalam_era":1297,"nanakshahi_year":652,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","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":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ṣaṣṭhī · Vikram 2178 Jaya · Śaka 2043 Vṛṣa"},"festivals":[{"id":"subrahmanya-shashthi","name":"Subrahmaṇya Ṣaṣṭhī","name_sanskrit":"सुब्रह्मण्य षष्ठी","tradition":"Shaiva","associated_deity":"Kārttikeya","significance":"Worship of Kārttikeya as Subrahmaṇya.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 17, 2121 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"September 17, 2121 CE for Kolhāpur, Maharashtra: Śukla Ṣaṣṭhī, sūryodaya 06:21, sūryāsta 18:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2121-09-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2121-09-17","sa":"https://sa.vidhyamitra.com/city/kolhapur/2121-09-17","hi":"https://hi.vidhyamitra.com/city/kolhapur/2121-09-17","x-default":"https://vidhyamitra.com/city/kolhapur/2121-09-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:54:25.251Z","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":"2026-05-31T20:54:25.251Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:54:25.251Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}