{"id":"vidhyamitra:city-day:jamnagar:1987-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/1987-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-09-01","date_display":"September 1, 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":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447039.770833,"kali_year":5089,"ahargana":1858574.2708,"sun":{"sidereal_longitude":133.753,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":225.4702,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":91.7171,"elapsed_within_tithi_degrees":7.7171},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4702,"elapsed_within_degrees":12.1368},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":359.2232},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447039.770833,"ahargana":1858574.2708,"kali_year":5089,"ayanamsa_lahiri":23.6807,"grahas":{"sun":{"sidereal_longitude":134.40874300000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":222.95304299999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":-3.9605},"mars":{"sidereal_longitude":132.36154299999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":145.38354300000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":6.519243000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":137.01394300000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":230.667643,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":343.791,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":163.791,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1987,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447039.770833,"kali_year":5089,"ahargana":1858574.2708,"sun":{"sidereal_longitude":133.753,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":225.4702,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":91.7171,"elapsed_within_tithi_degrees":7.7171},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":225.4702,"elapsed_within_degrees":12.1368},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":359.2232},"karana":{"half_tithi_index":15,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.96,"elongation":91.717},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.96,"opposition_distance":88.283}},"eclipse_window_40days":[]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:31","sunsetLocal":"19:07","solarNoonLocal":"12:49","dayLengthHours":12.596358113347966,"dayLengthDisplay":"12 Hours 35 Mins 47 Secs","nightLengthDisplay":"11 Hours 24 Mins 13 Secs","moonriseLocal":"13:18","moonsetLocal":"00:09","rahuKala":{"name":"Rāhu Kāla","start":"15:58","end":"17:33","startHours":15.970642564819103,"endHours":17.545187328987602,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:40","end":"11:15","startHours":9.672463508145121,"endHours":11.247008272313616,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:49","end":"14:24","startHours":12.821553036482111,"endHours":14.396097800650608,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:53","startHours":9.462524206255988,"endHours":9.882402810034254,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:03","end":"07:23","startHours":7.048222234530961,"endHours":7.384125117553573,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:24","end":"13:14","startHours":12.401674432703846,"endHours":13.241431640260377,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:51","end":"05:41","startHours":4.843859564695067,"endHours":5.6836167722515984,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:28","end":"06:31","startHours":5.473677470362466,"endHours":6.523373979808129,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:46","startHours":14.92094605537344,"endHours":15.76070326292997,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.919732093156096,"endHours":19.319732093156095,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:39","startHours":19.119732093156095,"endHours":19.64458034787893,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.869732093156095,"endHours":20.619732093156095,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:24","end":"01:14","startHours":24.401674432703846,"endHours":25.241431640260377,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:31","end":"08:06","startHours":6.523373979808129,"endHours":8.097918743976624,"quality":"inauspicious"},{"name":"Udveg","start":"08:06","end":"09:40","startHours":8.097918743976624,"endHours":9.672463508145121,"quality":"inauspicious"},{"name":"Chala","start":"09:40","end":"11:15","startHours":9.672463508145121,"endHours":11.247008272313616,"quality":"neutral"},{"name":"Labha","start":"11:15","end":"12:49","startHours":11.247008272313616,"endHours":12.821553036482111,"quality":"auspicious"},{"name":"Amṛta","start":"12:49","end":"14:24","startHours":12.821553036482111,"endHours":14.396097800650608,"quality":"auspicious"},{"name":"Kāla","start":"14:24","end":"15:58","startHours":14.396097800650608,"endHours":15.970642564819103,"quality":"inauspicious"},{"name":"Śubha","start":"15:58","end":"17:33","startHours":15.970642564819103,"endHours":17.545187328987602,"quality":"auspicious"},{"name":"Roga","start":"17:33","end":"19:07","startHours":17.545187328987602,"endHours":19.119732093156095,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:07","end":"20:33","startHours":19.119732093156095,"endHours":20.5451873289876,"quality":"inauspicious"},{"name":"Śubha","start":"20:33","end":"21:58","startHours":20.5451873289876,"endHours":21.970642564819105,"quality":"auspicious"},{"name":"Roga","start":"21:58","end":"23:24","startHours":21.970642564819105,"endHours":23.396097800650608,"quality":"inauspicious"},{"name":"Udveg","start":"23:24","end":"00:49","startHours":23.396097800650608,"endHours":24.82155303648211,"quality":"inauspicious"},{"name":"Chala","start":"00:49","end":"02:15","startHours":24.82155303648211,"endHours":26.247008272313614,"quality":"neutral"},{"name":"Labha","start":"02:15","end":"03:40","startHours":26.247008272313614,"endHours":27.67246350814512,"quality":"auspicious"},{"name":"Amṛta","start":"03:40","end":"05:06","startHours":27.67246350814512,"endHours":29.097918743976624,"quality":"auspicious"},{"name":"Kāla","start":"05:06","end":"06:31","startHours":29.097918743976624,"endHours":30.523373979808127,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:31","end":"07:31","startHours":6.523373979808129,"endHours":7.523373979808129,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:31","end":"08:31","startHours":7.523373979808129,"endHours":8.52337397980813,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:31","end":"09:31","startHours":8.52337397980813,"endHours":9.52337397980813,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:31","end":"10:31","startHours":9.52337397980813,"endHours":10.52337397980813,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:31","end":"11:31","startHours":10.52337397980813,"endHours":11.52337397980813,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:31","end":"12:31","startHours":11.52337397980813,"endHours":12.52337397980813,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:31","end":"13:31","startHours":12.52337397980813,"endHours":13.52337397980813,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:31","end":"14:31","startHours":13.52337397980813,"endHours":14.52337397980813,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:31","end":"15:31","startHours":14.52337397980813,"endHours":15.52337397980813,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:31","end":"16:31","startHours":15.52337397980813,"endHours":16.523373979808127,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:31","end":"17:31","startHours":16.523373979808127,"endHours":17.523373979808127,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:31","end":"18:31","startHours":17.523373979808127,"endHours":18.523373979808127,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:31","end":"19:31","startHours":18.523373979808127,"endHours":19.523373979808127,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:31","end":"20:31","startHours":19.523373979808127,"endHours":20.523373979808127,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:31","end":"21:31","startHours":20.523373979808127,"endHours":21.523373979808127,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:31","end":"22:31","startHours":21.523373979808127,"endHours":22.523373979808127,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:31","end":"23:31","startHours":22.523373979808127,"endHours":23.523373979808127,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:31","end":"00:31","startHours":23.523373979808127,"endHours":24.523373979808127,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:31","end":"01:31","startHours":24.523373979808127,"endHours":25.523373979808127,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:31","end":"02:31","startHours":25.523373979808127,"endHours":26.523373979808127,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:31","end":"03:31","startHours":26.523373979808127,"endHours":27.523373979808127,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:31","end":"04:31","startHours":27.523373979808127,"endHours":28.523373979808127,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:31","end":"05:31","startHours":28.523373979808127,"endHours":29.523373979808127,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:31","end":"06:31","startHours":29.523373979808127,"endHours":30.523373979808127,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.535220325616832,"eotMinutes":0.47601781107335894,"ayanamsa":23.6807}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Aṣṭamī · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"festivals":[{"id":"radhashtami","name":"Rādhāṣṭamī","name_sanskrit":"राधाष्टमी","tradition":"Vaishnava","associated_deity":"Śrī Rādhā (Krishna's hlādinī-śakti)","significance":"Manifestation of Śrī Rādhā at Barsānā — Krishna's ādi-śakti.","vrata":true,"detection":{"tithi_number":8,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":2,"sources":["Padma Purāṇa","Brahma-Vaivarta Purāṇa"]}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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":"jamnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 1, 1987 CE · Jamnagar, Gujarat · Vidhyamitra","description":"September 1, 1987 CE for Jamnagar, Gujarat: Śukla Aṣṭamī, sūryodaya 06:31, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/1987-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/1987-09-01","sa":"https://sa.vidhyamitra.com/city/jamnagar/1987-09-01","hi":"https://hi.vidhyamitra.com/city/jamnagar/1987-09-01","x-default":"https://vidhyamitra.com/city/jamnagar/1987-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T11:02:12.982Z","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":"2026-06-02T11:02:12.982Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T11:02:12.982Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}