{"id":"vidhyamitra:city-day:kolhapur:2171-02-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/2171-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2171-02-28","date_display":"February 28, 2171 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":2171,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514059.770833,"kali_year":5272,"ahargana":1925594.2708,"sun":{"sidereal_longitude":312.7848,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":231.2604,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":278.4756,"elapsed_within_tithi_degrees":2.4756},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":231.2604,"elapsed_within_degrees":4.5937},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.0452},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2171,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514059.770833,"ahargana":1925594.2708,"kali_year":5272,"ayanamsa_lahiri":26.244,"grahas":{"sun":{"sidereal_longitude":313.040886,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":233.64198599999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":-1.4274},"mars":{"sidereal_longitude":323.5448859999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":317.775386,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":169.552186,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":true},"venus":{"sidereal_longitude":278.789086,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":311.11858600000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":32.7489,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":212.7489,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","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":2171,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514059.770833,"kali_year":5272,"ahargana":1925594.2708,"sun":{"sidereal_longitude":312.7848,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":231.2604,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":278.4756,"elapsed_within_tithi_degrees":2.4756},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":231.2604,"elapsed_within_degrees":4.5937},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":184.0452},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.427,"elongation":81.524},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.427,"opposition_distance":98.476}},"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":"06:53","sunsetLocal":"18:40","solarNoonLocal":"12:46","dayLengthHours":11.79130756979011,"dayLengthDisplay":"11 Hours 47 Mins 29 Secs","nightLengthDisplay":"12 Hours 12 Mins 31 Secs","moonriseLocal":"01:55","moonsetLocal":"13:02","rahuKala":{"name":"Rāhu Kāla","start":"14:15","end":"15:43","startHours":14.244744426657554,"endHours":15.71865787288132,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:53","end":"08:21","startHours":6.875177195538737,"endHours":8.349090641762501,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:49","end":"11:18","startHours":9.823004087986265,"endHours":11.296917534210028,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:01","startHours":9.626482295156428,"endHours":10.0195258808161,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:41","startHours":7.366481677613325,"endHours":7.680916546141061,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:23","end":"13:10","startHours":12.37778739477412,"endHours":13.163874566093462,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:18","end":"06:05","startHours":5.303002852900056,"endHours":6.089090024219397,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:54","end":"06:53","startHours":5.8925682313895615,"endHours":6.875177195538737,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:31","startHours":14.736048908732144,"endHours":15.522136080051485,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:28","end":"18:52","startHours":18.466484765328847,"endHours":18.866484765328845,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:40","end":"19:09","startHours":18.666484765328846,"endHours":19.157789247403436,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:25","end":"20:10","startHours":18.416484765328846,"endHours":20.166484765328846,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:23","end":"01:10","startHours":24.377787394774124,"endHours":25.16387456609346,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:53","end":"08:21","startHours":6.875177195538737,"endHours":8.349090641762501,"quality":"auspicious"},{"name":"Roga","start":"08:21","end":"09:49","startHours":8.349090641762501,"endHours":9.823004087986265,"quality":"inauspicious"},{"name":"Udveg","start":"09:49","end":"11:18","startHours":9.823004087986265,"endHours":11.296917534210028,"quality":"inauspicious"},{"name":"Chala","start":"11:18","end":"12:46","startHours":11.296917534210028,"endHours":12.770830980433793,"quality":"neutral"},{"name":"Labha","start":"12:46","end":"14:15","startHours":12.770830980433793,"endHours":14.244744426657554,"quality":"auspicious"},{"name":"Amṛta","start":"14:15","end":"15:43","startHours":14.244744426657554,"endHours":15.71865787288132,"quality":"auspicious"},{"name":"Kāla","start":"15:43","end":"17:12","startHours":15.71865787288132,"endHours":17.192571319105085,"quality":"inauspicious"},{"name":"Śubha","start":"17:12","end":"18:40","startHours":17.192571319105085,"endHours":18.666484765328846,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:40","end":"20:12","startHours":18.666484765328846,"endHours":20.19257131910508,"quality":"auspicious"},{"name":"Kāla","start":"20:12","end":"21:43","startHours":20.19257131910508,"endHours":21.71865787288132,"quality":"inauspicious"},{"name":"Śubha","start":"21:43","end":"23:15","startHours":21.71865787288132,"endHours":23.244744426657554,"quality":"auspicious"},{"name":"Roga","start":"23:15","end":"00:46","startHours":23.244744426657554,"endHours":24.770830980433793,"quality":"inauspicious"},{"name":"Udveg","start":"00:46","end":"02:18","startHours":24.770830980433793,"endHours":26.296917534210028,"quality":"inauspicious"},{"name":"Chala","start":"02:18","end":"03:49","startHours":26.296917534210028,"endHours":27.823004087986263,"quality":"neutral"},{"name":"Labha","start":"03:49","end":"05:21","startHours":27.823004087986263,"endHours":29.3490906417625,"quality":"auspicious"},{"name":"Amṛta","start":"05:21","end":"06:53","startHours":29.3490906417625,"endHours":30.875177195538736,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:53","end":"07:53","startHours":6.875177195538737,"endHours":7.875177195538737,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:53","end":"08:53","startHours":7.875177195538737,"endHours":8.875177195538736,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:53","end":"09:53","startHours":8.875177195538736,"endHours":9.875177195538736,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:53","end":"10:53","startHours":9.875177195538736,"endHours":10.875177195538736,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:53","end":"11:53","startHours":10.875177195538736,"endHours":11.875177195538736,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:53","end":"12:53","startHours":11.875177195538736,"endHours":12.875177195538736,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:53","end":"13:53","startHours":12.875177195538736,"endHours":13.875177195538736,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:53","end":"14:53","startHours":13.875177195538736,"endHours":14.875177195538736,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:53","end":"15:53","startHours":14.875177195538736,"endHours":15.875177195538736,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:53","end":"16:53","startHours":15.875177195538736,"endHours":16.875177195538736,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:53","end":"17:53","startHours":16.875177195538736,"endHours":17.875177195538736,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:53","end":"18:53","startHours":17.875177195538736,"endHours":18.875177195538736,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:53","end":"19:53","startHours":18.875177195538736,"endHours":19.875177195538736,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:53","end":"20:53","startHours":19.875177195538736,"endHours":20.875177195538736,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:53","end":"21:53","startHours":20.875177195538736,"endHours":21.875177195538736,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:53","end":"22:53","startHours":21.875177195538736,"endHours":22.875177195538736,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:53","end":"23:53","startHours":22.875177195538736,"endHours":23.875177195538736,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:53","end":"00:53","startHours":23.875177195538736,"endHours":24.875177195538736,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:53","end":"01:53","startHours":24.875177195538736,"endHours":25.875177195538736,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:53","end":"02:53","startHours":25.875177195538736,"endHours":26.875177195538736,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:53","end":"03:53","startHours":26.875177195538736,"endHours":27.875177195538736,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:53","end":"04:53","startHours":27.875177195538736,"endHours":28.875177195538736,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:53","end":"05:53","startHours":28.875177195538736,"endHours":29.875177195538736,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:53","end":"06:53","startHours":29.875177195538736,"endHours":30.875177195538736,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.087576400517763,"eotMinutes":-13.223058826027486,"ayanamsa":26.244}},"calendars":{"vikram_samvat":2228,"vikram_samvatsara":"Tāraṇa","saka_samvat":2093,"saka_samvatsara":"Prajāpati","bengali_samvat":1578,"malayalam_era":1347,"nanakshahi_year":702,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Navamī · Vikram 2228 Tāraṇa · Śaka 2093 Prajāpati"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 28, 2171 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"February 28, 2171 CE for Kolhāpur, Maharashtra: Kṛṣṇa Navamī, sūryodaya 06:53, sūryāsta 18:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/2171-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/2171-02-28","sa":"https://sa.vidhyamitra.com/city/kolhapur/2171-02-28","hi":"https://hi.vidhyamitra.com/city/kolhapur/2171-02-28","x-default":"https://vidhyamitra.com/city/kolhapur/2171-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:10:47.836Z","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":"2026-05-31T17:10:47.836Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:10:47.836Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}