{"id":"vidhyamitra:city-day:thane:1987-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/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":"Not independently benchmarked across the declared range","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":"Not independently benchmarked across the declared range","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":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:22","sunsetLocal":"18:53","solarNoonLocal":"12:38","dayLengthHours":12.519005973259986,"dayLengthDisplay":"12 Hours 31 Mins 08 Secs","nightLengthDisplay":"11 Hours 28 Mins 52 Secs","moonriseLocal":"13:01","moonsetLocal":"00:03","rahuKala":{"name":"Rāhu Kāla","start":"15:45","end":"17:19","startHours":15.756611196463775,"endHours":17.321486943121272,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:30","end":"11:04","startHours":9.497108209833781,"endHours":11.061983956491279,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:38","end":"14:12","startHours":12.626859703148778,"endHours":14.191735449806277,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:42","startHours":9.288458110279448,"endHours":9.705758309388115,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:53","end":"07:13","startHours":6.888981965404618,"endHours":7.222822124691551,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:13","end":"13:03","startHours":12.209559504040111,"endHours":13.044159902257444,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:42","end":"05:32","startHours":4.69815592008412,"endHours":5.532756318301452,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:19","end":"06:22","startHours":5.324106218747119,"endHours":6.367356716518785,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:33","startHours":14.71336069869211,"endHours":15.547961096909443,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:41","end":"19:05","startHours":18.686362689778772,"endHours":19.08636268977877,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:53","end":"19:24","startHours":18.88636268977877,"endHours":19.407987938664604,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:38","end":"20:23","startHours":18.63636268977877,"endHours":20.38636268977877,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:13","end":"01:03","startHours":24.20955950404011,"endHours":25.044159902257444,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:22","end":"07:56","startHours":6.367356716518785,"endHours":7.932232463176283,"quality":"inauspicious"},{"name":"Udveg","start":"07:56","end":"09:30","startHours":7.932232463176283,"endHours":9.497108209833781,"quality":"inauspicious"},{"name":"Chala","start":"09:30","end":"11:04","startHours":9.497108209833781,"endHours":11.061983956491279,"quality":"neutral"},{"name":"Labha","start":"11:04","end":"12:38","startHours":11.061983956491279,"endHours":12.626859703148778,"quality":"auspicious"},{"name":"Amṛta","start":"12:38","end":"14:12","startHours":12.626859703148778,"endHours":14.191735449806277,"quality":"auspicious"},{"name":"Kāla","start":"14:12","end":"15:45","startHours":14.191735449806277,"endHours":15.756611196463775,"quality":"inauspicious"},{"name":"Śubha","start":"15:45","end":"17:19","startHours":15.756611196463775,"endHours":17.321486943121272,"quality":"auspicious"},{"name":"Roga","start":"17:19","end":"18:53","startHours":17.321486943121272,"endHours":18.88636268977877,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:53","end":"20:19","startHours":18.88636268977877,"endHours":20.321486943121272,"quality":"inauspicious"},{"name":"Śubha","start":"20:19","end":"21:45","startHours":20.321486943121272,"endHours":21.756611196463773,"quality":"auspicious"},{"name":"Roga","start":"21:45","end":"23:12","startHours":21.756611196463773,"endHours":23.191735449806277,"quality":"inauspicious"},{"name":"Udveg","start":"23:12","end":"00:38","startHours":23.191735449806277,"endHours":24.626859703148778,"quality":"inauspicious"},{"name":"Chala","start":"00:38","end":"02:04","startHours":24.626859703148778,"endHours":26.06198395649128,"quality":"neutral"},{"name":"Labha","start":"02:04","end":"03:30","startHours":26.06198395649128,"endHours":27.497108209833783,"quality":"auspicious"},{"name":"Amṛta","start":"03:30","end":"04:56","startHours":27.497108209833783,"endHours":28.932232463176284,"quality":"auspicious"},{"name":"Kāla","start":"04:56","end":"06:22","startHours":28.932232463176284,"endHours":30.367356716518785,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:22","end":"07:22","startHours":6.367356716518785,"endHours":7.367356716518785,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:22","end":"08:22","startHours":7.367356716518785,"endHours":8.367356716518785,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:22","end":"09:22","startHours":8.367356716518785,"endHours":9.367356716518785,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:22","end":"10:22","startHours":9.367356716518785,"endHours":10.367356716518785,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:22","end":"11:22","startHours":10.367356716518785,"endHours":11.367356716518785,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:22","end":"12:22","startHours":11.367356716518785,"endHours":12.367356716518785,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:22","end":"13:22","startHours":12.367356716518785,"endHours":13.367356716518785,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:22","end":"14:22","startHours":13.367356716518785,"endHours":14.367356716518785,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:22","end":"15:22","startHours":14.367356716518785,"endHours":15.367356716518785,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:22","end":"16:22","startHours":15.367356716518785,"endHours":16.367356716518785,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:22","end":"17:22","startHours":16.367356716518785,"endHours":17.367356716518785,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:22","end":"18:22","startHours":17.367356716518785,"endHours":18.367356716518785,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:22","end":"19:22","startHours":18.367356716518785,"endHours":19.367356716518785,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:22","end":"20:22","startHours":19.367356716518785,"endHours":20.367356716518785,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:22","end":"21:22","startHours":20.367356716518785,"endHours":21.367356716518785,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:22","end":"22:22","startHours":21.367356716518785,"endHours":22.367356716518785,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:22","end":"23:22","startHours":22.367356716518785,"endHours":23.367356716518785,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:22","end":"00:22","startHours":23.367356716518785,"endHours":24.367356716518785,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:22","end":"01:22","startHours":24.367356716518785,"endHours":25.367356716518785,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:22","end":"02:22","startHours":25.367356716518785,"endHours":26.367356716518785,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:22","end":"03:22","startHours":26.367356716518785,"endHours":27.367356716518785,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:22","end":"04:22","startHours":27.367356716518785,"endHours":28.367356716518785,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:22","end":"05:22","startHours":28.367356716518785,"endHours":29.367356716518785,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:22","end":"06:22","startHours":29.367356716518785,"endHours":30.367356716518785,"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":"Dedicated festival walk for Rādhāṣṭamī is not live yet; Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"thane"},"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 · Thane, Maharashtra · Vidhyamitra","description":"September 1, 1987 CE for Thane, Maharashtra: Śukla Aṣṭamī, sūryodaya 06:22, sūryāsta 18:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1987-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1987-09-01","sa":"https://sa.vidhyamitra.com/city/thane/1987-09-01","hi":"https://hi.vidhyamitra.com/city/thane/1987-09-01","x-default":"https://vidhyamitra.com/city/thane/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":"2026-09-25T04:14:08.887Z","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":"2026-09-25T04:14:08.887Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-25T04:14:08.887Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}