{"id":"vidhyamitra:city-day:dwarka:1998-01-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1998-01-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-01-21","date_display":"January 21, 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":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450834.770833,"kali_year":5099,"ahargana":1862369.2708,"sun":{"sidereal_longitude":276.904,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":191.2971,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.3931,"elapsed_within_tithi_degrees":10.3931},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":191.2971,"elapsed_within_degrees":4.6304},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2011},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450834.770833,"ahargana":1862369.2708,"kali_year":5099,"ayanamsa_lahiri":23.8258,"grahas":{"sun":{"sidereal_longitude":276.962846,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":189.26054599999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false,"latitude":3.3731},"mars":{"sidereal_longitude":302.762346,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":257.375546,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":302.80184600000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":269.466146,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":350.819246,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":142.7137,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":322.7137,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450834.770833,"kali_year":5099,"ahargana":1862369.2708,"sun":{"sidereal_longitude":276.904,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":191.2971,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":274.3931,"elapsed_within_tithi_degrees":10.3931},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":191.2971,"elapsed_within_degrees":4.6304},"yoga":{"number":9,"name":"Śūla","sum_longitude":108.2011},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.373,"elongation":85.607},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.373,"opposition_distance":94.393}},"eclipse_window_40days":[]},"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"07:36","sunsetLocal":"18:35","solarNoonLocal":"13:05","dayLengthHours":10.989079657124748,"dayLengthDisplay":"10 Hours 59 Mins 21 Secs","nightLengthDisplay":"13 Hours 00 Mins 39 Secs","moonriseLocal":"01:33","moonsetLocal":"12:56","rahuKala":{"name":"Rāhu Kāla","start":"13:05","end":"14:28","startHours":13.089688854152204,"endHours":14.463323811292796,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:58","end":"10:21","startHours":8.968783982730422,"endHours":10.342418939871017,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:43","end":"13:05","startHours":11.716053897011609,"endHours":13.089688854152204,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"10:10","end":"10:32","startHours":10.15926761225227,"endHours":10.525570267489762,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"08:03","end":"08:21","startHours":8.053027344636693,"endHours":8.346069468826686,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:43","end":"13:27","startHours":12.723386198914712,"endHours":13.455991509389696,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:08","end":"06:52","startHours":6.129938404639862,"endHours":6.862543715114846,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:41","end":"07:36","startHours":6.6793923874961,"endHours":7.595149025589829,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:39","startHours":14.921202130339662,"endHours":15.653807440814646,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:23","end":"18:47","startHours":18.38422868271458,"endHours":18.784228682714577,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:35","end":"19:03","startHours":18.584228682714578,"endHours":19.042107001761444,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:20","end":"20:05","startHours":18.334228682714578,"endHours":20.084228682714578,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:43","end":"01:27","startHours":24.723386198914714,"endHours":25.455991509389694,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:36","end":"08:58","startHours":7.595149025589829,"endHours":8.968783982730422,"quality":"auspicious"},{"name":"Amṛta","start":"08:58","end":"10:21","startHours":8.968783982730422,"endHours":10.342418939871017,"quality":"auspicious"},{"name":"Kāla","start":"10:21","end":"11:43","startHours":10.342418939871017,"endHours":11.716053897011609,"quality":"inauspicious"},{"name":"Śubha","start":"11:43","end":"13:05","startHours":11.716053897011609,"endHours":13.089688854152204,"quality":"auspicious"},{"name":"Roga","start":"13:05","end":"14:28","startHours":13.089688854152204,"endHours":14.463323811292796,"quality":"inauspicious"},{"name":"Udveg","start":"14:28","end":"15:50","startHours":14.463323811292796,"endHours":15.83695876843339,"quality":"inauspicious"},{"name":"Chala","start":"15:50","end":"17:13","startHours":15.83695876843339,"endHours":17.210593725573982,"quality":"neutral"},{"name":"Labha","start":"17:13","end":"18:35","startHours":17.210593725573982,"endHours":18.584228682714578,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:35","end":"20:13","startHours":18.584228682714578,"endHours":20.210593725573986,"quality":"inauspicious"},{"name":"Chala","start":"20:13","end":"21:50","startHours":20.210593725573986,"endHours":21.83695876843339,"quality":"neutral"},{"name":"Labha","start":"21:50","end":"23:28","startHours":21.83695876843339,"endHours":23.463323811292796,"quality":"auspicious"},{"name":"Amṛta","start":"23:28","end":"01:05","startHours":23.463323811292796,"endHours":25.089688854152204,"quality":"auspicious"},{"name":"Kāla","start":"01:05","end":"02:43","startHours":25.089688854152204,"endHours":26.716053897011612,"quality":"inauspicious"},{"name":"Śubha","start":"02:43","end":"04:21","startHours":26.716053897011612,"endHours":28.342418939871017,"quality":"auspicious"},{"name":"Roga","start":"04:21","end":"05:58","startHours":28.342418939871017,"endHours":29.96878398273042,"quality":"inauspicious"},{"name":"Udveg","start":"05:58","end":"07:36","startHours":29.96878398273042,"endHours":31.59514902558983,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:36","end":"08:36","startHours":7.595149025589829,"endHours":8.59514902558983,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:36","end":"09:36","startHours":8.59514902558983,"endHours":9.59514902558983,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:36","end":"10:36","startHours":9.59514902558983,"endHours":10.59514902558983,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:36","end":"11:36","startHours":10.59514902558983,"endHours":11.59514902558983,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:36","end":"12:36","startHours":11.59514902558983,"endHours":12.59514902558983,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:36","end":"13:36","startHours":12.59514902558983,"endHours":13.59514902558983,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:36","end":"14:36","startHours":13.59514902558983,"endHours":14.59514902558983,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:36","end":"15:36","startHours":14.59514902558983,"endHours":15.59514902558983,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:36","end":"16:36","startHours":15.59514902558983,"endHours":16.59514902558983,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:36","end":"17:36","startHours":16.59514902558983,"endHours":17.59514902558983,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:36","end":"18:36","startHours":17.59514902558983,"endHours":18.59514902558983,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:36","end":"19:36","startHours":18.59514902558983,"endHours":19.59514902558983,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:36","end":"20:36","startHours":19.59514902558983,"endHours":20.59514902558983,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:36","end":"21:36","startHours":20.59514902558983,"endHours":21.59514902558983,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:36","end":"22:36","startHours":21.59514902558983,"endHours":22.59514902558983,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:36","end":"23:36","startHours":22.59514902558983,"endHours":23.59514902558983,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:36","end":"00:36","startHours":23.59514902558983,"endHours":24.59514902558983,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:36","end":"01:36","startHours":24.59514902558983,"endHours":25.59514902558983,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:36","end":"02:36","startHours":25.59514902558983,"endHours":26.59514902558983,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:36","end":"03:36","startHours":26.59514902558983,"endHours":27.59514902558983,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:36","end":"04:36","startHours":27.59514902558983,"endHours":28.59514902558983,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:36","end":"05:36","startHours":28.59514902558983,"endHours":29.59514902558983,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:36","end":"06:36","startHours":29.59514902558983,"endHours":30.59514902558983,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:36","end":"07:36","startHours":30.59514902558983,"endHours":31.59514902558983,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.97905362189349,"eotMinutes":-11.255731249132124,"ayanamsa":23.8258}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Aṣṭamī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"dwarka"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 21, 1998 CE · Dvārakā · Vidhyamitra","description":"January 21, 1998 CE for Dvārakā: Kṛṣṇa Aṣṭamī, sūryodaya 07:36, sūryāsta 18:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1998-01-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1998-01-21","sa":"https://sa.vidhyamitra.com/city/dwarka/1998-01-21","hi":"https://hi.vidhyamitra.com/city/dwarka/1998-01-21","x-default":"https://vidhyamitra.com/city/dwarka/1998-01-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:16:08.372Z","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":"2026-06-01T03:16:08.372Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:16:08.372Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}