{"id":"vidhyamitra:city-day:kolhapur:2009-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2009-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2009-12-18","date_display":"December 18, 2009 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":2009,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455183.770833,"kali_year":5111,"ahargana":1866718.2708,"sun":{"sidereal_longitude":241.8643,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":261.3756,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":19.5113,"elapsed_within_tithi_degrees":7.5113},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.3756,"elapsed_within_degrees":8.0422},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.2399},"karana":{"half_tithi_index":3,"name":"Kaulava"},"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":2009,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455183.770833,"ahargana":1866718.2708,"kali_year":5111,"ayanamsa_lahiri":23.9922,"grahas":{"sun":{"sidereal_longitude":242.24758300000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":259.27208300000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false,"latitude":-0.8506},"mars":{"sidereal_longitude":115.51408299999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":262.4431830000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":299.96378300000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":236.162283,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":159.78888299999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":272.2827,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":92.2827,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","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":2009,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455183.770833,"kali_year":5111,"ahargana":1866718.2708,"sun":{"sidereal_longitude":241.8643,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":261.3756,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":19.5113,"elapsed_within_tithi_degrees":7.5113},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.3756,"elapsed_within_degrees":8.0422},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.2399},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.851,"elongation":19.511},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.851,"opposition_distance":160.489}},"eclipse_window_40days":[{"offset_days":14,"type":"lunar","occurs":true,"moon_latitude":1.039,"opposition_distance":1.922}]},"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":"06:56","sunsetLocal":"18:04","solarNoonLocal":"12:30","dayLengthHours":11.133152423513224,"dayLengthDisplay":"11 Hours 07 Mins 59 Secs","nightLengthDisplay":"12 Hours 52 Mins 01 Secs","moonriseLocal":"08:05","moonsetLocal":"19:12","rahuKala":{"name":"Rāhu Kāla","start":"11:07","end":"12:30","startHours":11.112340491258493,"endHours":12.503984544197646,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:17","end":"16:41","startHours":15.287272650075952,"endHours":16.678916703015105,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:20","end":"09:43","startHours":8.329052385380187,"endHours":9.72069643831934,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:32","end":"09:54","startHours":9.535143897927453,"endHours":9.906248978711227,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:24","end":"07:42","startHours":7.401289683420752,"endHours":7.698173748047772,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:08","end":"12:53","startHours":12.132879463413872,"endHours":12.87508962498142,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:27","end":"06:12","startHours":5.452988009305938,"endHours":6.195198170873486,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:01","end":"06:56","startHours":6.009645630481599,"endHours":6.937408332441034,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:06","startHours":14.359509948116518,"endHours":15.101720109684067,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:52","end":"18:16","startHours":17.87056075595426,"endHours":18.270560755954257,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:04","end":"18:32","startHours":18.070560755954258,"endHours":18.534442106933977,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:49","end":"19:34","startHours":17.820560755954258,"endHours":19.570560755954258,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:08","end":"00:53","startHours":24.13287946341387,"endHours":24.87508962498142,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:56","end":"08:20","startHours":6.937408332441034,"endHours":8.329052385380187,"quality":"neutral"},{"name":"Labha","start":"08:20","end":"09:43","startHours":8.329052385380187,"endHours":9.72069643831934,"quality":"auspicious"},{"name":"Amṛta","start":"09:43","end":"11:07","startHours":9.72069643831934,"endHours":11.112340491258493,"quality":"auspicious"},{"name":"Kāla","start":"11:07","end":"12:30","startHours":11.112340491258493,"endHours":12.503984544197646,"quality":"inauspicious"},{"name":"Śubha","start":"12:30","end":"13:54","startHours":12.503984544197646,"endHours":13.895628597136799,"quality":"auspicious"},{"name":"Roga","start":"13:54","end":"15:17","startHours":13.895628597136799,"endHours":15.287272650075952,"quality":"inauspicious"},{"name":"Udveg","start":"15:17","end":"16:41","startHours":15.287272650075952,"endHours":16.678916703015105,"quality":"inauspicious"},{"name":"Chala","start":"16:41","end":"18:04","startHours":16.678916703015105,"endHours":18.070560755954258,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:04","end":"19:41","startHours":18.070560755954258,"endHours":19.678916703015105,"quality":"inauspicious"},{"name":"Udveg","start":"19:41","end":"21:17","startHours":19.678916703015105,"endHours":21.287272650075952,"quality":"inauspicious"},{"name":"Chala","start":"21:17","end":"22:54","startHours":21.287272650075952,"endHours":22.8956285971368,"quality":"neutral"},{"name":"Labha","start":"22:54","end":"00:30","startHours":22.8956285971368,"endHours":24.503984544197646,"quality":"auspicious"},{"name":"Amṛta","start":"00:30","end":"02:07","startHours":24.503984544197646,"endHours":26.112340491258493,"quality":"auspicious"},{"name":"Kāla","start":"02:07","end":"03:43","startHours":26.112340491258493,"endHours":27.72069643831934,"quality":"inauspicious"},{"name":"Śubha","start":"03:43","end":"05:20","startHours":27.72069643831934,"endHours":29.329052385380187,"quality":"auspicious"},{"name":"Roga","start":"05:20","end":"06:56","startHours":29.329052385380187,"endHours":30.937408332441034,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.937408332441034,"endHours":7.937408332441034,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.937408332441034,"endHours":8.937408332441034,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.937408332441034,"endHours":9.937408332441034,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.937408332441034,"endHours":10.937408332441034,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.937408332441034,"endHours":11.937408332441034,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.937408332441034,"endHours":12.937408332441034,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.937408332441034,"endHours":13.937408332441034,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.937408332441034,"endHours":14.937408332441034,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.937408332441034,"endHours":15.937408332441034,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.937408332441034,"endHours":16.937408332441034,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.937408332441034,"endHours":17.937408332441034,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.937408332441034,"endHours":18.937408332441034,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.937408332441034,"endHours":19.937408332441034,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.937408332441034,"endHours":20.937408332441034,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.937408332441034,"endHours":21.937408332441034,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.937408332441034,"endHours":22.937408332441034,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.937408332441034,"endHours":23.937408332441034,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.937408332441034,"endHours":24.937408332441034,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.937408332441034,"endHours":25.937408332441034,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.937408332441034,"endHours":26.937408332441034,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.937408332441034,"endHours":27.937408332441034,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.937408332441034,"endHours":28.937408332441034,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.937408332441034,"endHours":29.937408332441034,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.937408332441034,"endHours":30.937408332441034,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.38304186120252,"eotMinutes":2.787727348141232,"ayanamsa":23.9922}},"calendars":{"vikram_samvat":2066,"vikram_samvatsara":"Śubhakṛt","saka_samvat":1931,"saka_samvatsara":"Virodhi","bengali_samvat":1416,"malayalam_era":1185,"nanakshahi_year":540,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvitīyā · Vikram 2066 Śubhakṛt · Śaka 1931 Virodhi"},"festivals":[],"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 December 18, 2009 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"December 18, 2009 CE for Kolhāpur, Maharashtra: Śukla Dvitīyā, sūryodaya 06:56, sūryāsta 18:04.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2009-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2009-12-18","sa":"https://sa.vidhyamitra.com/city/kolhapur/2009-12-18","hi":"https://hi.vidhyamitra.com/city/kolhapur/2009-12-18","x-default":"https://vidhyamitra.com/city/kolhapur/2009-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:23:19.449Z","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":"2026-05-31T15:23:19.449Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:23:19.449Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}