{"id":"vidhyamitra:city-day:kolhapur:1987-06-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kolhapur/1987-06-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-06-13","date_display":"June 13, 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":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446959.770833,"kali_year":5089,"ahargana":1858494.2708,"sun":{"sidereal_longitude":57.6713,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":252.4552,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.7839,"elapsed_within_tithi_degrees":2.7839},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":252.4552,"elapsed_within_degrees":12.4552},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.1265},"karana":{"half_tithi_index":32,"name":"Taitila"},"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":1987,"month":6,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446959.770833,"ahargana":1858494.2708,"kali_year":5089,"ayanamsa_lahiri":23.6776,"grahas":{"sun":{"sidereal_longitude":57.84749999999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":254.53729999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-4.4787},"mars":{"sidereal_longitude":81.36969999999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":80.97739999999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":0.09910000000002128,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":38.73340000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":233.58940000000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":348.0298,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":168.0298,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"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":6,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446959.770833,"kali_year":5089,"ahargana":1858494.2708,"sun":{"sidereal_longitude":57.6713,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":252.4552,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.7839,"elapsed_within_tithi_degrees":2.7839},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":252.4552,"elapsed_within_degrees":12.4552},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.1265},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.479,"elongation":165.216},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.479,"opposition_distance":14.784}},"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":"05:59","sunsetLocal":"19:06","solarNoonLocal":"12:33","dayLengthHours":13.111046284181135,"dayLengthDisplay":"13 Hours 06 Mins 40 Secs","nightLengthDisplay":"10 Hours 53 Mins 20 Secs","moonriseLocal":"20:06","moonsetLocal":"07:13","rahuKala":{"name":"Rāhu Kāla","start":"09:16","end":"10:54","startHours":9.269098768978036,"endHours":10.907979554500677,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:11","end":"15:49","startHours":14.18574112554596,"endHours":15.824621911068604,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:59","end":"07:38","startHours":5.991337197932752,"endHours":7.630217983455394,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:29","startHours":9.05058133090835,"endHours":9.487616207047722,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:53","startHours":6.537630793106966,"endHours":6.887258694018463,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:59","startHours":12.109825463883947,"endHours":12.98389521616269,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:07","startHours":4.243197693375267,"endHours":5.11726744565401,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:54","end":"05:59","startHours":4.898750007584324,"endHours":5.991337197932752,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:36","startHours":14.732034720720176,"endHours":15.606104472998918,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:54","end":"19:18","startHours":18.902383482113887,"endHours":19.302383482113886,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:06","end":"19:39","startHours":19.102383482113886,"endHours":19.6486770772881,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:51","end":"20:36","startHours":18.852383482113886,"endHours":20.602383482113886,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:59","startHours":24.109825463883947,"endHours":24.98389521616269,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:59","end":"07:38","startHours":5.991337197932752,"endHours":7.630217983455394,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"09:16","startHours":7.630217983455394,"endHours":9.269098768978036,"quality":"auspicious"},{"name":"Roga","start":"09:16","end":"10:54","startHours":9.269098768978036,"endHours":10.907979554500677,"quality":"inauspicious"},{"name":"Udveg","start":"10:54","end":"12:33","startHours":10.907979554500677,"endHours":12.546860340023319,"quality":"inauspicious"},{"name":"Chala","start":"12:33","end":"14:11","startHours":12.546860340023319,"endHours":14.18574112554596,"quality":"neutral"},{"name":"Labha","start":"14:11","end":"15:49","startHours":14.18574112554596,"endHours":15.824621911068604,"quality":"auspicious"},{"name":"Amṛta","start":"15:49","end":"17:28","startHours":15.824621911068604,"endHours":17.463502696591245,"quality":"auspicious"},{"name":"Kāla","start":"17:28","end":"19:06","startHours":17.463502696591245,"endHours":19.102383482113886,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:06","end":"20:28","startHours":19.102383482113886,"endHours":20.463502696591245,"quality":"auspicious"},{"name":"Amṛta","start":"20:28","end":"21:49","startHours":20.463502696591245,"endHours":21.824621911068604,"quality":"auspicious"},{"name":"Kāla","start":"21:49","end":"23:11","startHours":21.824621911068604,"endHours":23.18574112554596,"quality":"inauspicious"},{"name":"Śubha","start":"23:11","end":"00:33","startHours":23.18574112554596,"endHours":24.54686034002332,"quality":"auspicious"},{"name":"Roga","start":"00:33","end":"01:54","startHours":24.54686034002332,"endHours":25.907979554500677,"quality":"inauspicious"},{"name":"Udveg","start":"01:54","end":"03:16","startHours":25.907979554500677,"endHours":27.269098768978033,"quality":"inauspicious"},{"name":"Chala","start":"03:16","end":"04:38","startHours":27.269098768978033,"endHours":28.630217983455392,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"05:59","startHours":28.630217983455392,"endHours":29.99133719793275,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.991337197932752,"endHours":6.991337197932752,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.991337197932752,"endHours":7.991337197932752,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.991337197932752,"endHours":8.99133719793275,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.99133719793275,"endHours":9.99133719793275,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.99133719793275,"endHours":10.99133719793275,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.99133719793275,"endHours":11.99133719793275,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.99133719793275,"endHours":12.99133719793275,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.99133719793275,"endHours":13.99133719793275,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.99133719793275,"endHours":14.99133719793275,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.99133719793275,"endHours":15.99133719793275,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.99133719793275,"endHours":16.99133719793275,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.99133719793275,"endHours":17.99133719793275,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.99133719793275,"endHours":18.99133719793275,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.99133719793275,"endHours":19.99133719793275,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.99133719793275,"endHours":20.99133719793275,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.99133719793275,"endHours":21.99133719793275,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.99133719793275,"endHours":22.99133719793275,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.99133719793275,"endHours":23.99133719793275,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.99133719793275,"endHours":24.99133719793275,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.99133719793275,"endHours":25.99133719793275,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.99133719793275,"endHours":26.99133719793275,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.99133719793275,"endHours":27.99133719793275,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.99133719793275,"endHours":28.99133719793275,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.99133719793275,"endHours":29.99133719793275,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":23.165564710138195,"eotMinutes":0.2151795986009022,"ayanamsa":23.6776}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Dvitīyā · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[],"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":[]},"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 June 13, 1987 CE · Kolhāpur, Maharashtra · Vidhyamitra","description":"June 13, 1987 CE for Kolhāpur, Maharashtra: Kṛṣṇa Dvitīyā, sūryodaya 05:59, sūryāsta 19:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kolhapur/1987-06-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kolhapur/1987-06-13","sa":"https://sa.vidhyamitra.com/city/kolhapur/1987-06-13","hi":"https://hi.vidhyamitra.com/city/kolhapur/1987-06-13","x-default":"https://vidhyamitra.com/city/kolhapur/1987-06-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:25:39.145Z","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":"2026-05-31T00:25:39.145Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:25:39.145Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}