{"id":"vidhyamitra:city-day:kolhapur:1987-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/1987-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-12-28","date_display":"December 28, 1987 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":1987,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447157.770833,"kali_year":5089,"ahargana":1858692.2708,"sun":{"sidereal_longitude":251.8223,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":347.0603,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.238,"elapsed_within_tithi_degrees":11.238},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":347.0603,"elapsed_within_degrees":0.3936},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.8826},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1987,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447157.770833,"ahargana":1858692.2708,"kali_year":5089,"ayanamsa_lahiri":23.6852,"grahas":{"sun":{"sidereal_longitude":252.06783500000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":349.849635,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false,"latitude":0.7436},"mars":{"sidereal_longitude":208.796835,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":254.98463500000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":357.022435,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":283.628235,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":240.98853499999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":337.5388,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":157.5388,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":1987,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447157.770833,"kali_year":5089,"ahargana":1858692.2708,"sun":{"sidereal_longitude":251.8223,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":347.0603,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":95.238,"elapsed_within_tithi_degrees":11.238},"nakshatra":{"number":27,"name":"Revatī","pada":1,"moon_longitude":347.0603,"elapsed_within_degrees":0.3936},"yoga":{"number":18,"name":"Varīyān","sum_longitude":238.8826},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.744,"elongation":95.238},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.744,"opposition_distance":84.762}},"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":"07:01","sunsetLocal":"18:09","solarNoonLocal":"12:35","dayLengthHours":11.136503870098416,"dayLengthDisplay":"11 Hours 08 Mins 11 Secs","nightLengthDisplay":"12 Hours 51 Mins 49 Secs","moonriseLocal":"12:57","moonsetLocal":"01:15","rahuKala":{"name":"Rāhu Kāla","start":"08:24","end":"09:48","startHours":8.405709456451216,"endHours":9.79777244021352,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:11","end":"12:35","startHours":11.189835423975822,"endHours":12.581898407738123,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:58","end":"15:22","startHours":13.973961391500424,"endHours":15.366024375262727,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.612164042378545,"endHours":9.983380838048493,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:46","startHours":7.4776674672763495,"endHours":7.774640903812307,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:13","end":"12:57","startHours":12.210681612068177,"endHours":12.95311520340807,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:32","end":"06:16","startHours":5.528779290009126,"endHours":6.271212881349021,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:01","startHours":6.0856044835140475,"endHours":7.013646472688915,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:11","startHours":14.43798238608786,"endHours":15.180415977427755,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.95015034278733,"endHours":18.35015034278733,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:37","startHours":18.15015034278733,"endHours":18.614171337374763,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.90015034278733,"endHours":19.65015034278733,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:13","end":"00:57","startHours":24.210681612068175,"endHours":24.95311520340807,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:01","end":"08:24","startHours":7.013646472688915,"endHours":8.405709456451216,"quality":"auspicious"},{"name":"Kāla","start":"08:24","end":"09:48","startHours":8.405709456451216,"endHours":9.79777244021352,"quality":"inauspicious"},{"name":"Śubha","start":"09:48","end":"11:11","startHours":9.79777244021352,"endHours":11.189835423975822,"quality":"auspicious"},{"name":"Roga","start":"11:11","end":"12:35","startHours":11.189835423975822,"endHours":12.581898407738123,"quality":"inauspicious"},{"name":"Udveg","start":"12:35","end":"13:58","startHours":12.581898407738123,"endHours":13.973961391500424,"quality":"inauspicious"},{"name":"Chala","start":"13:58","end":"15:22","startHours":13.973961391500424,"endHours":15.366024375262727,"quality":"neutral"},{"name":"Labha","start":"15:22","end":"16:45","startHours":15.366024375262727,"endHours":16.75808735902503,"quality":"auspicious"},{"name":"Amṛta","start":"16:45","end":"18:09","startHours":16.75808735902503,"endHours":18.15015034278733,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:09","end":"19:45","startHours":18.15015034278733,"endHours":19.75808735902503,"quality":"neutral"},{"name":"Labha","start":"19:45","end":"21:22","startHours":19.75808735902503,"endHours":21.366024375262725,"quality":"auspicious"},{"name":"Amṛta","start":"21:22","end":"22:58","startHours":21.366024375262725,"endHours":22.973961391500424,"quality":"auspicious"},{"name":"Kāla","start":"22:58","end":"00:35","startHours":22.973961391500424,"endHours":24.581898407738123,"quality":"inauspicious"},{"name":"Śubha","start":"00:35","end":"02:11","startHours":24.581898407738123,"endHours":26.189835423975822,"quality":"auspicious"},{"name":"Roga","start":"02:11","end":"03:48","startHours":26.189835423975822,"endHours":27.79777244021352,"quality":"inauspicious"},{"name":"Udveg","start":"03:48","end":"05:24","startHours":27.79777244021352,"endHours":29.405709456451216,"quality":"inauspicious"},{"name":"Chala","start":"05:24","end":"07:01","startHours":29.405709456451216,"endHours":31.013646472688915,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.013646472688915,"endHours":8.013646472688915,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.013646472688915,"endHours":9.013646472688915,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.013646472688915,"endHours":10.013646472688915,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.013646472688915,"endHours":11.013646472688915,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.013646472688915,"endHours":12.013646472688915,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.013646472688915,"endHours":13.013646472688915,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.013646472688915,"endHours":14.013646472688915,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.013646472688915,"endHours":15.013646472688915,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.013646472688915,"endHours":16.013646472688915,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.013646472688915,"endHours":17.013646472688915,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.013646472688915,"endHours":18.013646472688915,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.013646472688915,"endHours":19.013646472688915,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.013646472688915,"endHours":20.013646472688915,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.013646472688915,"endHours":21.013646472688915,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.013646472688915,"endHours":22.013646472688915,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.013646472688915,"endHours":23.013646472688915,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.013646472688915,"endHours":24.013646472688915,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.013646472688915,"endHours":25.013646472688915,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.013646472688915,"endHours":26.013646472688915,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.013646472688915,"endHours":27.013646472688915,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.013646472688915,"endHours":28.013646472688915,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.013646472688915,"endHours":29.013646472688915,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.013646472688915,"endHours":30.013646472688915,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.013646472688915,"endHours":31.013646472688915,"planetary_lord":"Venus"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.311458050650064,"eotMinutes":-1.8871044642874448,"ayanamsa":23.6852}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"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 Aṣṭamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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}]},"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 28, 1987 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"December 28, 1987 CE for Kolhāpur, Maharashtra: Śukla Aṣṭamī, sūryodaya 07:01, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/1987-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/1987-12-28","sa":"https://sa.vidhyamitra.com/city/kolhapur/1987-12-28","hi":"https://hi.vidhyamitra.com/city/kolhapur/1987-12-28","x-default":"https://vidhyamitra.com/city/kolhapur/1987-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:06:52.426Z","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":"2026-05-31T23:06:52.426Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:06:52.426Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}