{"id":"vidhyamitra:city-day:kolhapur:2100-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2100-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-04-18","date_display":"April 18, 2100 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":2100,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488176.770833,"kali_year":5202,"ahargana":1899711.2708,"sun":{"sidereal_longitude":2.7525,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":100.516,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":97.7635,"elapsed_within_tithi_degrees":1.7635},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":100.516,"elapsed_within_degrees":7.1827},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":103.2685},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2100,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488176.770833,"ahargana":1899711.2708,"kali_year":5202,"ayanamsa_lahiri":25.254,"grahas":{"sun":{"sidereal_longitude":2.8628069999999752,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":97.07650699999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":3.1038},"mars":{"sidereal_longitude":61.11840699999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":0.5581070000000068,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":170.619907,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"venus":{"sidereal_longitude":33.44750699999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":true},"saturn":{"sidereal_longitude":176.38740699999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":324.1548,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":144.1548,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2100,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488176.770833,"kali_year":5202,"ahargana":1899711.2708,"sun":{"sidereal_longitude":2.7525,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":100.516,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":97.7635,"elapsed_within_tithi_degrees":1.7635},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":100.516,"elapsed_within_degrees":7.1827},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":103.2685},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.104,"elongation":97.764},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.104,"opposition_distance":82.236}},"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":"06:16","sunsetLocal":"18:49","solarNoonLocal":"12:33","dayLengthHours":12.556030303089525,"dayLengthDisplay":"12 Hours 33 Mins 22 Secs","nightLengthDisplay":"11 Hours 26 Mins 38 Secs","moonriseLocal":"12:22","moonsetLocal":"01:17","rahuKala":{"name":"Rāhu Kāla","start":"17:15","end":"18:49","startHours":17.25052664872718,"endHours":18.820030436613372,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:33","end":"14:07","startHours":12.542015285068608,"endHours":14.111519072954799,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:41","end":"17:15","startHours":15.68102286084099,"endHours":17.25052664872718,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:37","startHours":9.19374053757807,"endHours":9.612274881014386,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:47","end":"07:07","startHours":6.7871680628192435,"endHours":7.1219955375682975,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:58","startHours":12.123480941632293,"endHours":12.960549628504927,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:35","end":"05:26","startHours":4.589862759778576,"endHours":5.426931446651212,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:16","startHours":5.217664274933052,"endHours":6.264000133523846,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:28","startHours":14.634687002250196,"endHours":15.471755689122832,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:37","end":"19:01","startHours":18.620030436613373,"endHours":19.02003043661337,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:49","end":"19:21","startHours":18.820030436613372,"endHours":19.34319836590877,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:34","end":"20:19","startHours":18.570030436613372,"endHours":20.320030436613372,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:58","startHours":24.12348094163229,"endHours":24.960549628504925,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:16","end":"07:50","startHours":6.264000133523846,"endHours":7.833503921410037,"quality":"inauspicious"},{"name":"Chala","start":"07:50","end":"09:24","startHours":7.833503921410037,"endHours":9.403007709296228,"quality":"neutral"},{"name":"Labha","start":"09:24","end":"10:58","startHours":9.403007709296228,"endHours":10.972511497182417,"quality":"auspicious"},{"name":"Amṛta","start":"10:58","end":"12:33","startHours":10.972511497182417,"endHours":12.542015285068608,"quality":"auspicious"},{"name":"Kāla","start":"12:33","end":"14:07","startHours":12.542015285068608,"endHours":14.111519072954799,"quality":"inauspicious"},{"name":"Śubha","start":"14:07","end":"15:41","startHours":14.111519072954799,"endHours":15.68102286084099,"quality":"auspicious"},{"name":"Roga","start":"15:41","end":"17:15","startHours":15.68102286084099,"endHours":17.25052664872718,"quality":"inauspicious"},{"name":"Udveg","start":"17:15","end":"18:49","startHours":17.25052664872718,"endHours":18.820030436613372,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:49","end":"20:15","startHours":18.820030436613372,"endHours":20.25052664872718,"quality":"auspicious"},{"name":"Roga","start":"20:15","end":"21:41","startHours":20.25052664872718,"endHours":21.68102286084099,"quality":"inauspicious"},{"name":"Udveg","start":"21:41","end":"23:07","startHours":21.68102286084099,"endHours":23.1115190729548,"quality":"inauspicious"},{"name":"Chala","start":"23:07","end":"00:33","startHours":23.1115190729548,"endHours":24.542015285068608,"quality":"neutral"},{"name":"Labha","start":"00:33","end":"01:58","startHours":24.542015285068608,"endHours":25.972511497182417,"quality":"auspicious"},{"name":"Amṛta","start":"01:58","end":"03:24","startHours":25.972511497182417,"endHours":27.40300770929623,"quality":"auspicious"},{"name":"Kāla","start":"03:24","end":"04:50","startHours":27.40300770929623,"endHours":28.83350392141004,"quality":"inauspicious"},{"name":"Śubha","start":"04:50","end":"06:16","startHours":28.83350392141004,"endHours":30.264000133523847,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:16","end":"07:16","startHours":6.264000133523846,"endHours":7.264000133523846,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:16","end":"08:16","startHours":7.264000133523846,"endHours":8.264000133523847,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:16","end":"09:16","startHours":8.264000133523847,"endHours":9.264000133523847,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:16","end":"10:16","startHours":9.264000133523847,"endHours":10.264000133523847,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:16","end":"11:16","startHours":10.264000133523847,"endHours":11.264000133523847,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:16","end":"12:16","startHours":11.264000133523847,"endHours":12.264000133523847,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:16","end":"13:16","startHours":12.264000133523847,"endHours":13.264000133523847,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:16","end":"14:16","startHours":13.264000133523847,"endHours":14.264000133523847,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:16","end":"15:16","startHours":14.264000133523847,"endHours":15.264000133523847,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:16","end":"16:16","startHours":15.264000133523847,"endHours":16.264000133523847,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:16","end":"17:16","startHours":16.264000133523847,"endHours":17.264000133523847,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:16","end":"18:16","startHours":17.264000133523847,"endHours":18.264000133523847,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:16","end":"19:16","startHours":18.264000133523847,"endHours":19.264000133523847,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:16","end":"20:16","startHours":19.264000133523847,"endHours":20.264000133523847,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:16","end":"21:16","startHours":20.264000133523847,"endHours":21.264000133523847,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:16","end":"22:16","startHours":21.264000133523847,"endHours":22.264000133523847,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:16","end":"23:16","startHours":22.264000133523847,"endHours":23.264000133523847,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:16","end":"00:16","startHours":23.264000133523847,"endHours":24.264000133523847,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:16","end":"01:16","startHours":24.264000133523847,"endHours":25.264000133523847,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:16","end":"02:16","startHours":25.264000133523847,"endHours":26.264000133523847,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:16","end":"03:16","startHours":26.264000133523847,"endHours":27.264000133523847,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:16","end":"04:16","startHours":27.264000133523847,"endHours":28.264000133523847,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:16","end":"05:16","startHours":28.264000133523847,"endHours":29.264000133523847,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:16","end":"06:16","startHours":29.264000133523847,"endHours":30.264000133523847,"planetary_lord":"Jupiter"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.803401163159673,"eotMinutes":0.5058828958834352,"ayanamsa":25.254}},"calendars":{"vikram_samvat":2157,"vikram_samvatsara":"Śrīmukha","saka_samvat":2022,"saka_samvatsara":"Raudra","bengali_samvat":1507,"malayalam_era":1276,"nanakshahi_year":631,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Navamī · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"festivals":[{"id":"rama-navami","name":"Rāma Navamī","name_sanskrit":"राम नवमी","tradition":"Vaishnava","associated_deity":"Rāma (18th avatāra of Krishna)","deity_avatara_index":18,"significance":"Bhagavān Rāma's birth at Ayodhyā. Sūryavaṃśa's most exalted moment.","vrata":true,"primary_observance":"Madhyāhna (noon) abhiṣekam in Ayodhyā tradition","detection":{"tithi_number":9,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"related_chart":"rama","historical_anchor":{"event":"Bhagavān Rāma's birth at Ayodhyā","date_julian":"-1626101-04-03","location":"Ayodhyā"},"sources":["Vālmīki Rāmāyaṇa, Bāla-Kāṇḍa 1.18"]}],"todays_walk":{"walk":{"id":"rama-navami-walk","name":"Rāma Navamī Walk","name_sanskrit":"राम नवमी यात्रा","type":"festival","description":"Vālmīki Bāla-Kāṇḍa selections + BG 4.7-8 (avatāra principle).","step_count":9,"url":"/walk/rama-navami-walk"},"reason":"Today is Rāma Navamī — its dedicated walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 April 18, 2100 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"April 18, 2100 CE for Kolhāpur, Maharashtra: Śukla Navamī, sūryodaya 06:16, sūryāsta 18:49.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2100-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2100-04-18","sa":"https://sa.vidhyamitra.com/city/kolhapur/2100-04-18","hi":"https://hi.vidhyamitra.com/city/kolhapur/2100-04-18","x-default":"https://vidhyamitra.com/city/kolhapur/2100-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T05:19:32.944Z","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":"2026-06-02T05:19:32.944Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T05:19:32.944Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}