{"id":"vidhyamitra:city-day:kolhapur:2173-02-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2173-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-02-21","date_display":"February 21, 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":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514783.770833,"kali_year":5274,"ahargana":1926318.2708,"sun":{"sidereal_longitude":306.1953,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":49.7601,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":103.5648,"elapsed_within_tithi_degrees":7.5648},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.7601,"elapsed_within_degrees":9.7601},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":355.9554},"karana":{"half_tithi_index":17,"name":"Kaulava"},"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":2173,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514783.770833,"ahargana":1926318.2708,"kali_year":5274,"ayanamsa_lahiri":26.2716,"grahas":{"sun":{"sidereal_longitude":306.48152400000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":52.042524000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false,"latitude":3.7016},"mars":{"sidereal_longitude":334.634324,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":277.57882400000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":228.72932400000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":307.318524,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":332.18922399999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":354.3879,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":174.3879,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"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":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514783.770833,"kali_year":5274,"ahargana":1926318.2708,"sun":{"sidereal_longitude":306.1953,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":49.7601,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":103.5648,"elapsed_within_tithi_degrees":7.5648},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3,"moon_longitude":49.7601,"elapsed_within_degrees":9.7601},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":355.9554},"karana":{"half_tithi_index":17,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.702,"elongation":103.565},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.702,"opposition_distance":76.435}},"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":"06:56","sunsetLocal":"18:38","solarNoonLocal":"12:47","dayLengthHours":11.693270791764004,"dayLengthDisplay":"11 Hours 41 Mins 36 Secs","nightLengthDisplay":"12 Hours 18 Mins 24 Secs","moonriseLocal":"13:18","moonsetLocal":"02:21","rahuKala":{"name":"Rāhu Kāla","start":"17:10","end":"18:38","startHours":17.171920585932106,"endHours":18.633579434902607,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:47","end":"14:15","startHours":12.786944039020604,"endHours":14.248602887991105,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:43","end":"17:10","startHours":15.710261736961606,"endHours":17.171920585932106,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:04","startHours":9.668738494550205,"endHours":10.058514187609003,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:44","startHours":7.427528259462103,"endHours":7.739348813909143,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:24","end":"13:11","startHours":12.397168345961806,"endHours":13.176719732079405,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:23","end":"06:10","startHours":5.381205870903402,"endHours":6.160757257021002,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:58","end":"06:56","startHours":5.965869410491602,"endHours":6.940308643138603,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:31","startHours":14.735822504314605,"endHours":15.515373890432205,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.433579434902608,"endHours":18.833579434902607,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:07","startHours":18.633579434902607,"endHours":19.120799051226108,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.383579434902607,"endHours":20.133579434902607,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:24","end":"01:11","startHours":24.397168345961802,"endHours":25.176719732079405,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:56","end":"08:24","startHours":6.940308643138603,"endHours":8.401967492109103,"quality":"inauspicious"},{"name":"Chala","start":"08:24","end":"09:52","startHours":8.401967492109103,"endHours":9.863626341079604,"quality":"neutral"},{"name":"Labha","start":"09:52","end":"11:20","startHours":9.863626341079604,"endHours":11.325285190050103,"quality":"auspicious"},{"name":"Amṛta","start":"11:20","end":"12:47","startHours":11.325285190050103,"endHours":12.786944039020604,"quality":"auspicious"},{"name":"Kāla","start":"12:47","end":"14:15","startHours":12.786944039020604,"endHours":14.248602887991105,"quality":"inauspicious"},{"name":"Śubha","start":"14:15","end":"15:43","startHours":14.248602887991105,"endHours":15.710261736961606,"quality":"auspicious"},{"name":"Roga","start":"15:43","end":"17:10","startHours":15.710261736961606,"endHours":17.171920585932106,"quality":"inauspicious"},{"name":"Udveg","start":"17:10","end":"18:38","startHours":17.171920585932106,"endHours":18.633579434902607,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:38","end":"20:10","startHours":18.633579434902607,"endHours":20.171920585932106,"quality":"auspicious"},{"name":"Roga","start":"20:10","end":"21:43","startHours":20.171920585932106,"endHours":21.710261736961606,"quality":"inauspicious"},{"name":"Udveg","start":"21:43","end":"23:15","startHours":21.710261736961606,"endHours":23.248602887991105,"quality":"inauspicious"},{"name":"Chala","start":"23:15","end":"00:47","startHours":23.248602887991105,"endHours":24.786944039020604,"quality":"neutral"},{"name":"Labha","start":"00:47","end":"02:20","startHours":24.786944039020604,"endHours":26.325285190050103,"quality":"auspicious"},{"name":"Amṛta","start":"02:20","end":"03:52","startHours":26.325285190050103,"endHours":27.863626341079605,"quality":"auspicious"},{"name":"Kāla","start":"03:52","end":"05:24","startHours":27.863626341079605,"endHours":29.401967492109105,"quality":"inauspicious"},{"name":"Śubha","start":"05:24","end":"06:56","startHours":29.401967492109105,"endHours":30.940308643138604,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.940308643138603,"endHours":7.940308643138603,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.940308643138603,"endHours":8.940308643138604,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.940308643138604,"endHours":9.940308643138604,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.940308643138604,"endHours":10.940308643138604,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.940308643138604,"endHours":11.940308643138604,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.940308643138604,"endHours":12.940308643138604,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.940308643138604,"endHours":13.940308643138604,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.940308643138604,"endHours":14.940308643138604,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.940308643138604,"endHours":15.940308643138604,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.940308643138604,"endHours":16.940308643138604,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.940308643138604,"endHours":17.940308643138604,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.940308643138604,"endHours":18.940308643138604,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.940308643138604,"endHours":19.940308643138604,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.940308643138604,"endHours":20.940308643138604,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.940308643138604,"endHours":21.940308643138604,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.940308643138604,"endHours":22.940308643138604,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.940308643138604,"endHours":23.940308643138604,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.940308643138604,"endHours":24.940308643138604,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.940308643138604,"endHours":25.940308643138604,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.940308643138604,"endHours":26.940308643138604,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.940308643138604,"endHours":27.940308643138604,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.940308643138604,"endHours":28.940308643138604,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.940308643138604,"endHours":29.940308643138604,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.940308643138604,"endHours":30.940308643138604,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.491638972830797,"eotMinutes":-14.189842341236304,"ayanamsa":26.2716}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Navamī · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5},{"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 February 21, 2173 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"February 21, 2173 CE for Kolhāpur, Maharashtra: Śukla Navamī, sūryodaya 06:56, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2173-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2173-02-21","sa":"https://sa.vidhyamitra.com/city/kolhapur/2173-02-21","hi":"https://hi.vidhyamitra.com/city/kolhapur/2173-02-21","x-default":"https://vidhyamitra.com/city/kolhapur/2173-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T20:19:35.076Z","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":"2026-06-01T20:19:35.076Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T20:19:35.076Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}