{"id":"vidhyamitra:city-day:kolhapur:2031-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2031-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-01-18","date_display":"January 18, 2031 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":2031,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462884.770833,"kali_year":5132,"ahargana":1874419.2708,"sun":{"sidereal_longitude":273.2733,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":205.5769,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":292.3036,"elapsed_within_tithi_degrees":4.3036},"nakshatra":{"number":16,"name":"Viśākhā","pada":2,"moon_longitude":205.5769,"elapsed_within_degrees":5.5769},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.8501},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2031,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462884.770833,"ahargana":1874419.2708,"kali_year":5132,"ayanamsa_lahiri":24.2867,"grahas":{"sun":{"sidereal_longitude":273.43734799999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":202.68604800000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":-1.4392},"mars":{"sidereal_longitude":186.25664800000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":253.11474799999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":234.68054800000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":294.640848,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":37.77654799999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":224.2467,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":44.2467,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"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":2031,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462884.770833,"kali_year":5132,"ahargana":1874419.2708,"sun":{"sidereal_longitude":273.2733,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":205.5769,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":292.3036,"elapsed_within_tithi_degrees":4.3036},"nakshatra":{"number":16,"name":"Viśākhā","pada":2,"moon_longitude":205.5769,"elapsed_within_degrees":5.5769},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.8501},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.439,"elongation":67.696},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.439,"opposition_distance":112.304}},"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":"07:06","sunsetLocal":"18:21","solarNoonLocal":"12:43","dayLengthHours":11.26033194461231,"dayLengthDisplay":"11 Hours 15 Mins 37 Secs","nightLengthDisplay":"12 Hours 44 Mins 23 Secs","moonriseLocal":"02:19","moonsetLocal":"13:42","rahuKala":{"name":"Rāhu Kāla","start":"09:54","end":"11:19","startHours":9.907850840208418,"endHours":11.315392333284956,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:08","end":"15:32","startHours":14.130475319438034,"endHours":15.538016812514572,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:06","end":"08:30","startHours":7.0927678540553405,"endHours":8.500309347131878,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:43","end":"10:06","startHours":9.720178641131547,"endHours":10.09552303928529,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:52","startHours":7.56194835174752,"endHours":7.862223870270515,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:21","end":"13:06","startHours":12.347589428207751,"endHours":13.098278224515237,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:35","end":"06:21","startHours":5.591390261440366,"endHours":6.342079057747853,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:06","startHours":6.154406858670981,"endHours":7.0927678540553405,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:36","end":"15:21","startHours":14.599655817130213,"endHours":15.3503446134377,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.15309979866765,"endHours":18.55309979866765,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:49","startHours":18.35309979866765,"endHours":18.82228029635983,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.10309979866765,"endHours":19.85309979866765,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:21","end":"01:06","startHours":24.34758942820775,"endHours":25.098278224515237,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:06","end":"08:30","startHours":7.0927678540553405,"endHours":8.500309347131878,"quality":"inauspicious"},{"name":"Śubha","start":"08:30","end":"09:54","startHours":8.500309347131878,"endHours":9.907850840208418,"quality":"auspicious"},{"name":"Roga","start":"09:54","end":"11:19","startHours":9.907850840208418,"endHours":11.315392333284956,"quality":"inauspicious"},{"name":"Udveg","start":"11:19","end":"12:43","startHours":11.315392333284956,"endHours":12.722933826361494,"quality":"inauspicious"},{"name":"Chala","start":"12:43","end":"14:08","startHours":12.722933826361494,"endHours":14.130475319438034,"quality":"neutral"},{"name":"Labha","start":"14:08","end":"15:32","startHours":14.130475319438034,"endHours":15.538016812514572,"quality":"auspicious"},{"name":"Amṛta","start":"15:32","end":"16:57","startHours":15.538016812514572,"endHours":16.945558305591113,"quality":"auspicious"},{"name":"Kāla","start":"16:57","end":"18:21","startHours":16.945558305591113,"endHours":18.35309979866765,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:21","end":"19:57","startHours":18.35309979866765,"endHours":19.94555830559111,"quality":"auspicious"},{"name":"Amṛta","start":"19:57","end":"21:32","startHours":19.94555830559111,"endHours":21.538016812514574,"quality":"auspicious"},{"name":"Kāla","start":"21:32","end":"23:08","startHours":21.538016812514574,"endHours":23.130475319438034,"quality":"inauspicious"},{"name":"Śubha","start":"23:08","end":"00:43","startHours":23.130475319438034,"endHours":24.722933826361494,"quality":"auspicious"},{"name":"Roga","start":"00:43","end":"02:19","startHours":24.722933826361494,"endHours":26.315392333284954,"quality":"inauspicious"},{"name":"Udveg","start":"02:19","end":"03:54","startHours":26.315392333284954,"endHours":27.907850840208418,"quality":"inauspicious"},{"name":"Chala","start":"03:54","end":"05:30","startHours":27.907850840208418,"endHours":29.50030934713188,"quality":"neutral"},{"name":"Labha","start":"05:30","end":"07:06","startHours":29.50030934713188,"endHours":31.09276785405534,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:06","end":"08:06","startHours":7.0927678540553405,"endHours":8.09276785405534,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:06","end":"09:06","startHours":8.09276785405534,"endHours":9.09276785405534,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:06","end":"10:06","startHours":9.09276785405534,"endHours":10.09276785405534,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:06","end":"11:06","startHours":10.09276785405534,"endHours":11.09276785405534,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:06","end":"12:06","startHours":11.09276785405534,"endHours":12.09276785405534,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:06","end":"13:06","startHours":12.09276785405534,"endHours":13.09276785405534,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:06","end":"14:06","startHours":13.09276785405534,"endHours":14.09276785405534,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:06","end":"15:06","startHours":14.09276785405534,"endHours":15.09276785405534,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:06","end":"16:06","startHours":15.09276785405534,"endHours":16.09276785405534,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:06","end":"17:06","startHours":16.09276785405534,"endHours":17.09276785405534,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:06","end":"18:06","startHours":17.09276785405534,"endHours":18.09276785405534,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:06","end":"19:06","startHours":18.09276785405534,"endHours":19.09276785405534,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:06","end":"20:06","startHours":19.09276785405534,"endHours":20.09276785405534,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:06","end":"21:06","startHours":20.09276785405534,"endHours":21.09276785405534,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:06","end":"22:06","startHours":21.09276785405534,"endHours":22.09276785405534,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:06","end":"23:06","startHours":22.09276785405534,"endHours":23.09276785405534,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:06","end":"00:06","startHours":23.09276785405534,"endHours":24.09276785405534,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:06","end":"01:06","startHours":24.09276785405534,"endHours":25.09276785405534,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:06","end":"02:06","startHours":25.09276785405534,"endHours":26.09276785405534,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:06","end":"03:06","startHours":26.09276785405534,"endHours":27.09276785405534,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:06","end":"04:06","startHours":27.09276785405534,"endHours":28.09276785405534,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:06","end":"05:06","startHours":28.09276785405534,"endHours":29.09276785405534,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:06","end":"06:06","startHours":29.09276785405534,"endHours":30.09276785405534,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:06","end":"07:06","startHours":30.09276785405534,"endHours":31.09276785405534,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.614109946433,"eotMinutes":-10.349229581689698,"ayanamsa":24.2867}},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Daśamī · Vikram 2088 Raktākṣī · Śaka 1953 Virodhakṛt"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 January 18, 2031 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"January 18, 2031 CE for Kolhāpur, Maharashtra: Kṛṣṇa Daśamī, sūryodaya 07:06, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2031-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2031-01-18","sa":"https://sa.vidhyamitra.com/city/kolhapur/2031-01-18","hi":"https://hi.vidhyamitra.com/city/kolhapur/2031-01-18","x-default":"https://vidhyamitra.com/city/kolhapur/2031-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:41:33.511Z","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":"2026-05-15T00:41:33.511Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:41:33.511Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}