{"id":"vidhyamitra:city-day:vrindavan:1998-10-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1998-10-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-10-09","date_display":"October 9, 1998 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":1998,"month":10,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451095.770833,"kali_year":5100,"ahargana":1862630.2708,"sun":{"sidereal_longitude":170.9752,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.4127,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.4375,"elapsed_within_tithi_degrees":6.4375},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.4127,"elapsed_within_degrees":6.746},"yoga":{"number":16,"name":"Siddhi","sum_longitude":204.3878},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1998,"month":10,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451095.770833,"ahargana":1862630.2708,"kali_year":5100,"ayanamsa_lahiri":23.8358,"grahas":{"sun":{"sidereal_longitude":171.71467400000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":36.95467400000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-4.4795},"mars":{"sidereal_longitude":127.110074,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":181.176874,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":326.36777400000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":166.30247399999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":7.405873999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":128.8846,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":308.8846,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"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":1998,"month":10,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451095.770833,"kali_year":5100,"ahargana":1862630.2708,"sun":{"sidereal_longitude":170.9752,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.4127,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":222.4375,"elapsed_within_tithi_degrees":6.4375},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":33.4127,"elapsed_within_degrees":6.746},"yoga":{"number":16,"name":"Siddhi","sum_longitude":204.3878},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.479,"elongation":137.562},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.479,"opposition_distance":42.438}},"eclipse_window_40days":[]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:15","sunsetLocal":"17:57","solarNoonLocal":"12:06","dayLengthHours":11.69827255554153,"dayLengthDisplay":"11 Hours 41 Mins 54 Secs","nightLengthDisplay":"12 Hours 18 Mins 06 Secs","moonriseLocal":"20:19","moonsetLocal":"09:54","rahuKala":{"name":"Rāhu Kāla","start":"10:38","end":"12:06","startHours":10.635579458591877,"endHours":12.09786352803457,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:01","end":"16:29","startHours":15.022431666919951,"endHours":16.48471573636264,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:43","end":"09:10","startHours":7.711011319706494,"endHours":9.173295389149185,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:22","startHours":8.97832417989016,"endHours":9.368266598408212,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:03","startHours":6.7361552734113666,"endHours":7.048109208225807,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:29","startHours":11.707921109516516,"endHours":12.48780594655262,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:41","end":"05:28","startHours":4.6889575761916,"endHours":5.468842413227701,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:15","startHours":5.2738712039686755,"endHours":6.248727250263803,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:03","end":"14:50","startHours":14.047575620624823,"endHours":14.827460457660925,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.746999805805334,"endHours":18.146999805805333,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:26","startHours":17.946999805805333,"endHours":18.4344278289529,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.696999805805333,"endHours":19.446999805805333,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:29","startHours":23.707921109516516,"endHours":24.487805946552616,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:15","end":"07:43","startHours":6.248727250263803,"endHours":7.711011319706494,"quality":"neutral"},{"name":"Labha","start":"07:43","end":"09:10","startHours":7.711011319706494,"endHours":9.173295389149185,"quality":"auspicious"},{"name":"Amṛta","start":"09:10","end":"10:38","startHours":9.173295389149185,"endHours":10.635579458591877,"quality":"auspicious"},{"name":"Kāla","start":"10:38","end":"12:06","startHours":10.635579458591877,"endHours":12.09786352803457,"quality":"inauspicious"},{"name":"Śubha","start":"12:06","end":"13:34","startHours":12.09786352803457,"endHours":13.56014759747726,"quality":"auspicious"},{"name":"Roga","start":"13:34","end":"15:01","startHours":13.56014759747726,"endHours":15.022431666919951,"quality":"inauspicious"},{"name":"Udveg","start":"15:01","end":"16:29","startHours":15.022431666919951,"endHours":16.48471573636264,"quality":"inauspicious"},{"name":"Chala","start":"16:29","end":"17:57","startHours":16.48471573636264,"endHours":17.946999805805333,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:57","end":"19:29","startHours":17.946999805805333,"endHours":19.48471573636264,"quality":"inauspicious"},{"name":"Udveg","start":"19:29","end":"21:01","startHours":19.48471573636264,"endHours":21.02243166691995,"quality":"inauspicious"},{"name":"Chala","start":"21:01","end":"22:34","startHours":21.02243166691995,"endHours":22.56014759747726,"quality":"neutral"},{"name":"Labha","start":"22:34","end":"00:06","startHours":22.56014759747726,"endHours":24.09786352803457,"quality":"auspicious"},{"name":"Amṛta","start":"00:06","end":"01:38","startHours":24.09786352803457,"endHours":25.635579458591877,"quality":"auspicious"},{"name":"Kāla","start":"01:38","end":"03:10","startHours":25.635579458591877,"endHours":27.173295389149185,"quality":"inauspicious"},{"name":"Śubha","start":"03:10","end":"04:43","startHours":27.173295389149185,"endHours":28.711011319706493,"quality":"auspicious"},{"name":"Roga","start":"04:43","end":"06:15","startHours":28.711011319706493,"endHours":30.248727250263805,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.248727250263803,"endHours":7.248727250263803,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.248727250263803,"endHours":8.248727250263803,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.248727250263803,"endHours":9.248727250263803,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.248727250263803,"endHours":10.248727250263803,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.248727250263803,"endHours":11.248727250263803,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.248727250263803,"endHours":12.248727250263803,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.248727250263803,"endHours":13.248727250263803,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.248727250263803,"endHours":14.248727250263803,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.248727250263803,"endHours":15.248727250263803,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.248727250263803,"endHours":16.248727250263805,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.248727250263805,"endHours":17.248727250263805,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.248727250263805,"endHours":18.248727250263805,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.248727250263805,"endHours":19.248727250263805,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.248727250263805,"endHours":20.248727250263805,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.248727250263805,"endHours":21.248727250263805,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.248727250263805,"endHours":22.248727250263805,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.248727250263805,"endHours":23.248727250263805,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.248727250263805,"endHours":24.248727250263805,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.248727250263805,"endHours":25.248727250263805,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.248727250263805,"endHours":26.248727250263805,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.248727250263805,"endHours":27.248727250263805,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.248727250263805,"endHours":28.248727250263805,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.248727250263805,"endHours":29.248727250263805,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.248727250263805,"endHours":30.248727250263805,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-6.120911375779065,"eotMinutes":13.49098831792595,"ayanamsa":23.8358}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Caturthī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"karva-chauth","name":"Karvā Chauth","name_sanskrit":"करवा चौथ","tradition":"Pan-Hindu","associated_deity":"Pārvatī + Gaṇeśa + Chandra","significance":"North Indian wives' fast for husband's longevity. Kṛṣṇa Caturthī of Kārtika.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa","lunar_month":"Kārtika"},"precedence":2},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 9, 1998 CE · Vṛndāvana · Vidhyamitra","description":"October 9, 1998 CE for Vṛndāvana: Kṛṣṇa Caturthī, sūryodaya 06:15, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1998-10-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1998-10-09","sa":"https://sa.vidhyamitra.com/city/vrindavan/1998-10-09","hi":"https://hi.vidhyamitra.com/city/vrindavan/1998-10-09","x-default":"https://vidhyamitra.com/city/vrindavan/1998-10-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T19:24:16.101Z","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":"2026-06-01T19:24:16.101Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T19:24:16.101Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}