{"id":"vidhyamitra:city-day:kolhapur:2173-04-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2173-04-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-04-20","date_display":"April 20, 2173 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":2173,"month":4,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514841.770833,"kali_year":5275,"ahargana":1926376.2708,"sun":{"sidereal_longitude":3.8347,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":92.4571,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.6224,"elapsed_within_tithi_degrees":4.6224},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.4571,"elapsed_within_degrees":12.4571},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.2918},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2173,"month":4,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514841.770833,"ahargana":1926376.2708,"kali_year":5275,"ayanamsa_lahiri":26.2739,"grahas":{"sun":{"sidereal_longitude":4.1199080000000095,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":91.83220800000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":4.415},"mars":{"sidereal_longitude":17.973307999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":14.214207999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":231.181108,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":19.381107999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":339.259008,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":351.3148,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":171.3148,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":2173,"month":4,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514841.770833,"kali_year":5275,"ahargana":1926376.2708,"sun":{"sidereal_longitude":3.8347,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":92.4571,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":88.6224,"elapsed_within_tithi_degrees":4.6224},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":92.4571,"elapsed_within_degrees":12.4571},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":96.2918},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.415,"elongation":88.622},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.415,"opposition_distance":91.378}},"eclipse_window_40days":[{"offset_days":-8,"type":"solar","occurs":true,"moon_latitude":0.108,"elongation":2.903}]},"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":"06:14","sunsetLocal":"18:50","solarNoonLocal":"12:32","dayLengthHours":12.589949676619234,"dayLengthDisplay":"12 Hours 35 Mins 24 Secs","nightLengthDisplay":"11 Hours 24 Mins 36 Secs","moonriseLocal":"11:54","moonsetLocal":"00:51","rahuKala":{"name":"Rāhu Kāla","start":"15:41","end":"17:15","startHours":15.681804694727457,"endHours":17.255548404304864,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:23","end":"10:58","startHours":9.38682985641784,"endHours":10.960573565995245,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:32","end":"14:06","startHours":12.53431727557265,"endHours":14.108060985150054,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:36","startHours":9.176997361807521,"endHours":9.596662351028161,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:06","startHours":6.763923673788834,"endHours":7.099655665165347,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:57","startHours":12.11465228635201,"endHours":12.953982264793291,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:24","startHours":4.560682480380468,"endHours":5.400012458821751,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:11","end":"06:14","startHours":5.1901799642114295,"endHours":6.239342437263033,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:28","startHours":14.632642221675855,"endHours":15.471972200117138,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:38","end":"19:02","startHours":18.62929211388227,"endHours":19.029292113882267,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:50","end":"19:21","startHours":18.829292113882268,"endHours":19.35387335040807,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:35","end":"20:20","startHours":18.579292113882268,"endHours":20.329292113882268,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:57","startHours":24.11465228635201,"endHours":24.953982264793293,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:14","end":"07:49","startHours":6.239342437263033,"endHours":7.813086146840437,"quality":"inauspicious"},{"name":"Udveg","start":"07:49","end":"09:23","startHours":7.813086146840437,"endHours":9.38682985641784,"quality":"inauspicious"},{"name":"Chala","start":"09:23","end":"10:58","startHours":9.38682985641784,"endHours":10.960573565995245,"quality":"neutral"},{"name":"Labha","start":"10:58","end":"12:32","startHours":10.960573565995245,"endHours":12.53431727557265,"quality":"auspicious"},{"name":"Amṛta","start":"12:32","end":"14:06","startHours":12.53431727557265,"endHours":14.108060985150054,"quality":"auspicious"},{"name":"Kāla","start":"14:06","end":"15:41","startHours":14.108060985150054,"endHours":15.681804694727457,"quality":"inauspicious"},{"name":"Śubha","start":"15:41","end":"17:15","startHours":15.681804694727457,"endHours":17.255548404304864,"quality":"auspicious"},{"name":"Roga","start":"17:15","end":"18:50","startHours":17.255548404304864,"endHours":18.829292113882268,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:50","end":"20:15","startHours":18.829292113882268,"endHours":20.255548404304864,"quality":"inauspicious"},{"name":"Śubha","start":"20:15","end":"21:41","startHours":20.255548404304864,"endHours":21.68180469472746,"quality":"auspicious"},{"name":"Roga","start":"21:41","end":"23:06","startHours":21.68180469472746,"endHours":23.108060985150054,"quality":"inauspicious"},{"name":"Udveg","start":"23:06","end":"00:32","startHours":23.108060985150054,"endHours":24.53431727557265,"quality":"inauspicious"},{"name":"Chala","start":"00:32","end":"01:58","startHours":24.53431727557265,"endHours":25.960573565995247,"quality":"neutral"},{"name":"Labha","start":"01:58","end":"03:23","startHours":25.960573565995247,"endHours":27.38682985641784,"quality":"auspicious"},{"name":"Amṛta","start":"03:23","end":"04:49","startHours":27.38682985641784,"endHours":28.813086146840437,"quality":"auspicious"},{"name":"Kāla","start":"04:49","end":"06:14","startHours":28.813086146840437,"endHours":30.239342437263034,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:14","end":"07:14","startHours":6.239342437263033,"endHours":7.239342437263033,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:14","end":"08:14","startHours":7.239342437263033,"endHours":8.239342437263034,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:14","end":"09:14","startHours":8.239342437263034,"endHours":9.239342437263034,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:14","end":"10:14","startHours":9.239342437263034,"endHours":10.239342437263034,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:14","end":"11:14","startHours":10.239342437263034,"endHours":11.239342437263034,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:14","end":"12:14","startHours":11.239342437263034,"endHours":12.239342437263034,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:14","end":"13:14","startHours":12.239342437263034,"endHours":13.239342437263034,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:14","end":"14:14","startHours":13.239342437263034,"endHours":14.239342437263034,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:14","end":"15:14","startHours":14.239342437263034,"endHours":15.239342437263034,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:14","end":"16:14","startHours":15.239342437263034,"endHours":16.239342437263034,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:14","end":"17:14","startHours":16.239342437263034,"endHours":17.239342437263034,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:14","end":"18:14","startHours":17.239342437263034,"endHours":18.239342437263034,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:14","end":"19:14","startHours":18.239342437263034,"endHours":19.239342437263034,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:14","end":"20:14","startHours":19.239342437263034,"endHours":20.239342437263034,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:14","end":"21:14","startHours":20.239342437263034,"endHours":21.239342437263034,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:14","end":"22:14","startHours":21.239342437263034,"endHours":22.239342437263034,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:14","end":"23:14","startHours":22.239342437263034,"endHours":23.239342437263034,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:14","end":"00:14","startHours":23.239342437263034,"endHours":24.239342437263034,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:14","end":"01:14","startHours":24.239342437263034,"endHours":25.239342437263034,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:14","end":"02:14","startHours":25.239342437263034,"endHours":26.239342437263034,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:14","end":"03:14","startHours":26.239342437263034,"endHours":27.239342437263034,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:14","end":"04:14","startHours":27.239342437263034,"endHours":28.239342437263034,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:14","end":"05:14","startHours":28.239342437263034,"endHours":29.239342437263034,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:14","end":"06:14","startHours":29.239342437263034,"endHours":30.239342437263034,"planetary_lord":"Saturn"}],"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","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.608835614848045,"eotMinutes":0.9677634656409275,"ayanamsa":26.2739}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"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 Aṣṭamī · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5},{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","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 20, 2173 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"April 20, 2173 CE for Kolhāpur, Maharashtra: Śukla Aṣṭamī, sūryodaya 06:14, sūryāsta 18:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2173-04-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2173-04-20","sa":"https://sa.vidhyamitra.com/city/kolhapur/2173-04-20","hi":"https://hi.vidhyamitra.com/city/kolhapur/2173-04-20","x-default":"https://vidhyamitra.com/city/kolhapur/2173-04-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:18:19.436Z","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":"2026-05-31T06:18:19.436Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:18:19.436Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}