{"id":"vidhyamitra:city-day:jamnagar:1998-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/1998-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-04-13","date_display":"April 13, 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":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450916.770833,"kali_year":5099,"ahargana":1862451.2708,"sun":{"sidereal_longitude":359.2328,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":193.1467,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":193.9139,"elapsed_within_tithi_degrees":1.9139},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":193.1467,"elapsed_within_degrees":6.48},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.3794},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450916.770833,"ahargana":1862451.2708,"kali_year":5099,"ayanamsa_lahiri":23.829,"grahas":{"sun":{"sidereal_longitude":359.091513,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":191.15211299999999,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":3.6749},"mars":{"sidereal_longitude":6.217812999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":348.371813,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":322.00951299999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":313.365813,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":359.449813,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":138.3689,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":318.3689,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"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":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450916.770833,"kali_year":5099,"ahargana":1862451.2708,"sun":{"sidereal_longitude":359.2328,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":193.1467,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":193.9139,"elapsed_within_tithi_degrees":1.9139},"nakshatra":{"number":15,"name":"Svātī","pada":2,"moon_longitude":193.1467,"elapsed_within_degrees":6.48},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.3794},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.675,"elongation":166.086},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.675,"opposition_distance":13.914}},"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":"06:32","sunsetLocal":"19:09","solarNoonLocal":"12:51","dayLengthHours":12.617754187609917,"dayLengthDisplay":"12 Hours 37 Mins 04 Secs","nightLengthDisplay":"11 Hours 22 Mins 56 Secs","moonriseLocal":"19:58","moonsetLocal":"07:19","rahuKala":{"name":"Rāhu Kāla","start":"08:07","end":"09:41","startHours":8.110659026808023,"endHours":9.687878300259262,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:16","end":"12:51","startHours":11.265097573710502,"endHours":12.84231684716174,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:25","end":"16:00","startHours":14.419536120612982,"endHours":15.99675539406422,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:29","end":"09:54","startHours":9.47758239713243,"endHours":9.898174203386095,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:04","end":"07:24","startHours":7.059179511173863,"endHours":7.395652956176794,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:25","end":"13:16","startHours":12.421725040908075,"endHours":13.262908653415405,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:51","end":"05:42","startHours":4.851072528342128,"endHours":5.692256140849455,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:32","startHours":5.481960237722623,"endHours":6.533439753356783,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:57","end":"15:47","startHours":14.94527587843006,"endHours":15.786459490937387,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:57","end":"19:21","startHours":18.9511939409667,"endHours":19.3511939409667,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:09","end":"19:41","startHours":19.1511939409667,"endHours":19.676933698783778,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:54","end":"20:39","startHours":18.9011939409667,"endHours":20.6511939409667,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:25","end":"01:16","startHours":24.421725040908075,"endHours":25.262908653415405,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:32","end":"08:07","startHours":6.533439753356783,"endHours":8.110659026808023,"quality":"auspicious"},{"name":"Kāla","start":"08:07","end":"09:41","startHours":8.110659026808023,"endHours":9.687878300259262,"quality":"inauspicious"},{"name":"Śubha","start":"09:41","end":"11:16","startHours":9.687878300259262,"endHours":11.265097573710502,"quality":"auspicious"},{"name":"Roga","start":"11:16","end":"12:51","startHours":11.265097573710502,"endHours":12.84231684716174,"quality":"inauspicious"},{"name":"Udveg","start":"12:51","end":"14:25","startHours":12.84231684716174,"endHours":14.419536120612982,"quality":"inauspicious"},{"name":"Chala","start":"14:25","end":"16:00","startHours":14.419536120612982,"endHours":15.99675539406422,"quality":"neutral"},{"name":"Labha","start":"16:00","end":"17:34","startHours":15.99675539406422,"endHours":17.573974667515458,"quality":"auspicious"},{"name":"Amṛta","start":"17:34","end":"19:09","startHours":17.573974667515458,"endHours":19.1511939409667,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:09","end":"20:34","startHours":19.1511939409667,"endHours":20.57397466751546,"quality":"neutral"},{"name":"Labha","start":"20:34","end":"22:00","startHours":20.57397466751546,"endHours":21.99675539406422,"quality":"auspicious"},{"name":"Amṛta","start":"22:00","end":"23:25","startHours":21.99675539406422,"endHours":23.41953612061298,"quality":"auspicious"},{"name":"Kāla","start":"23:25","end":"00:51","startHours":23.41953612061298,"endHours":24.84231684716174,"quality":"inauspicious"},{"name":"Śubha","start":"00:51","end":"02:16","startHours":24.84231684716174,"endHours":26.265097573710502,"quality":"auspicious"},{"name":"Roga","start":"02:16","end":"03:41","startHours":26.265097573710502,"endHours":27.687878300259264,"quality":"inauspicious"},{"name":"Udveg","start":"03:41","end":"05:07","startHours":27.687878300259264,"endHours":29.110659026808023,"quality":"inauspicious"},{"name":"Chala","start":"05:07","end":"06:32","startHours":29.110659026808023,"endHours":30.53343975335678,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:32","end":"07:32","startHours":6.533439753356783,"endHours":7.533439753356783,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:32","end":"08:32","startHours":7.533439753356783,"endHours":8.533439753356783,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:32","end":"09:32","startHours":8.533439753356783,"endHours":9.533439753356783,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:32","end":"10:32","startHours":9.533439753356783,"endHours":10.533439753356783,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:32","end":"11:32","startHours":10.533439753356783,"endHours":11.533439753356783,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:32","end":"12:32","startHours":11.533439753356783,"endHours":12.533439753356783,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:32","end":"13:32","startHours":12.533439753356783,"endHours":13.533439753356783,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:32","end":"14:32","startHours":13.533439753356783,"endHours":14.533439753356783,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:32","end":"15:32","startHours":14.533439753356783,"endHours":15.533439753356783,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:32","end":"16:32","startHours":15.533439753356783,"endHours":16.53343975335678,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:32","end":"17:32","startHours":16.53343975335678,"endHours":17.53343975335678,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:32","end":"18:32","startHours":17.53343975335678,"endHours":18.53343975335678,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:32","end":"19:32","startHours":18.53343975335678,"endHours":19.53343975335678,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:32","end":"20:32","startHours":19.53343975335678,"endHours":20.53343975335678,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:32","end":"21:32","startHours":20.53343975335678,"endHours":21.53343975335678,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:32","end":"22:32","startHours":21.53343975335678,"endHours":22.53343975335678,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:32","end":"23:32","startHours":22.53343975335678,"endHours":23.53343975335678,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:32","end":"00:32","startHours":23.53343975335678,"endHours":24.53343975335678,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:32","end":"01:32","startHours":24.53343975335678,"endHours":25.53343975335678,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:32","end":"02:32","startHours":25.53343975335678,"endHours":26.53343975335678,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:32","end":"03:32","startHours":26.53343975335678,"endHours":27.53343975335678,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:32","end":"04:32","startHours":27.53343975335678,"endHours":28.53343975335678,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:32","end":"05:32","startHours":28.53343975335678,"endHours":29.53343975335678,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:32","end":"06:32","startHours":29.53343975335678,"endHours":30.53343975335678,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.910903228062644,"eotMinutes":-0.7698108297043191,"ayanamsa":23.829}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Dvitīyā · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 April 13, 1998 CE · Jamnagar, Gujarat · Vidhyamitra","description":"April 13, 1998 CE for Jamnagar, Gujarat: Kṛṣṇa Dvitīyā, sūryodaya 06:32, sūryāsta 19:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/1998-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/1998-04-13","sa":"https://sa.vidhyamitra.com/city/jamnagar/1998-04-13","hi":"https://hi.vidhyamitra.com/city/jamnagar/1998-04-13","x-default":"https://vidhyamitra.com/city/jamnagar/1998-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T10:47:29.882Z","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":"2026-06-01T10:47:29.882Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T10:47:29.882Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}