{"id":"vidhyamitra:city-day:sydney:1998-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/sydney/1998-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-01-01","date_display":"January 1, 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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450814.770833,"kali_year":5099,"ahargana":1862349.2708,"sun":{"sidereal_longitude":256.3586,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":284.8438,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":28.4852,"elapsed_within_tithi_degrees":4.4852},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":284.8438,"elapsed_within_degrees":4.8438},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":181.2024},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450814.770833,"ahargana":1862349.2708,"kali_year":5099,"ayanamsa_lahiri":23.8251,"grahas":{"sun":{"sidereal_longitude":256.58790999999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":286.6868099999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":2.8259},"mars":{"sidereal_longitude":286.99200999999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":234.57061,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":298.42071,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":279.56381,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":349.89871,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":143.7734,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":323.7734,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1998,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450814.770833,"kali_year":5099,"ahargana":1862349.2708,"sun":{"sidereal_longitude":256.3586,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":284.8438,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":28.4852,"elapsed_within_tithi_degrees":4.4852},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2,"moon_longitude":284.8438,"elapsed_within_degrees":4.8438},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":181.2024},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.826,"elongation":28.485},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.826,"opposition_distance":151.515}},"eclipse_window_40days":[]},"city":{"slug":"sydney","name":"Sydney, Australia","lat":-33.8688,"lon":151.2093,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"sydney","name":"Sydney, Australia","lat":-33.8688,"lon":151.2093,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"sunriseLocal":"04:48","sunsetLocal":"19:10","solarNoonLocal":"11:59","dayLengthHours":14.362245649413573,"dayLengthDisplay":"14 Hours 21 Mins 44 Secs","nightLengthDisplay":"9 Hours 38 Mins 16 Secs","moonriseLocal":"07:07","moonsetLocal":"20:51","rahuKala":{"name":"Rāhu Kāla","start":"13:47","end":"15:34","startHours":13.776413678233297,"endHours":15.571694384409994,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"04:48","end":"06:36","startHours":4.800010147349814,"endHours":6.59529085352651,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:23","end":"10:11","startHours":8.390571559703208,"endHours":10.185852265879904,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:09","end":"08:38","startHours":8.151200798879646,"endHours":8.629942320526766,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:24","end":"05:47","startHours":5.398437049408712,"endHours":5.7814302667264075,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:28","startHours":11.50239145040948,"endHours":12.459874493703719,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:53","end":"03:51","startHours":2.885044060761337,"endHours":3.8425271040555753,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:36","end":"04:48","startHours":3.603156343232016,"endHours":4.800010147349814,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:20","startHours":14.374840580292194,"endHours":15.332323623586431,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.962255796763387,"endHours":19.362255796763385,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:46","startHours":19.162255796763386,"endHours":19.760682698822286,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.912255796763386,"endHours":20.662255796763386,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:28","startHours":23.50239145040948,"endHours":24.45987449370372,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"04:48","end":"06:36","startHours":4.800010147349814,"endHours":6.59529085352651,"quality":"auspicious"},{"name":"Roga","start":"06:36","end":"08:23","startHours":6.59529085352651,"endHours":8.390571559703208,"quality":"inauspicious"},{"name":"Udveg","start":"08:23","end":"10:11","startHours":8.390571559703208,"endHours":10.185852265879904,"quality":"inauspicious"},{"name":"Chala","start":"10:11","end":"11:59","startHours":10.185852265879904,"endHours":11.9811329720566,"quality":"neutral"},{"name":"Labha","start":"11:59","end":"13:47","startHours":11.9811329720566,"endHours":13.776413678233297,"quality":"auspicious"},{"name":"Amṛta","start":"13:47","end":"15:34","startHours":13.776413678233297,"endHours":15.571694384409994,"quality":"auspicious"},{"name":"Kāla","start":"15:34","end":"17:22","startHours":15.571694384409994,"endHours":17.36697509058669,"quality":"inauspicious"},{"name":"Śubha","start":"17:22","end":"19:10","startHours":17.36697509058669,"endHours":19.162255796763386,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:10","end":"20:22","startHours":19.162255796763386,"endHours":20.36697509058669,"quality":"auspicious"},{"name":"Kāla","start":"20:22","end":"21:34","startHours":20.36697509058669,"endHours":21.571694384409994,"quality":"inauspicious"},{"name":"Śubha","start":"21:34","end":"22:47","startHours":21.571694384409994,"endHours":22.776413678233297,"quality":"auspicious"},{"name":"Roga","start":"22:47","end":"23:59","startHours":22.776413678233297,"endHours":23.9811329720566,"quality":"inauspicious"},{"name":"Udveg","start":"23:59","end":"01:11","startHours":23.9811329720566,"endHours":25.185852265879902,"quality":"inauspicious"},{"name":"Chala","start":"01:11","end":"02:23","startHours":25.185852265879902,"endHours":26.390571559703204,"quality":"neutral"},{"name":"Labha","start":"02:23","end":"03:36","startHours":26.390571559703204,"endHours":27.59529085352651,"quality":"auspicious"},{"name":"Amṛta","start":"03:36","end":"04:48","startHours":27.59529085352651,"endHours":28.800010147349813,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"04:48","end":"05:48","startHours":4.800010147349814,"endHours":5.800010147349814,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"05:48","end":"06:48","startHours":5.800010147349814,"endHours":6.800010147349814,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"06:48","end":"07:48","startHours":6.800010147349814,"endHours":7.800010147349814,"planetary_lord":"Moon"},{"name":"Hora 4","start":"07:48","end":"08:48","startHours":7.800010147349814,"endHours":8.800010147349813,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"08:48","end":"09:48","startHours":8.800010147349813,"endHours":9.800010147349813,"planetary_lord":"Venus"},{"name":"Hora 6","start":"09:48","end":"10:48","startHours":9.800010147349813,"endHours":10.800010147349813,"planetary_lord":"Sun"},{"name":"Hora 7","start":"10:48","end":"11:48","startHours":10.800010147349813,"endHours":11.800010147349813,"planetary_lord":"Mars"},{"name":"Hora 8","start":"11:48","end":"12:48","startHours":11.800010147349813,"endHours":12.800010147349813,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"12:48","end":"13:48","startHours":12.800010147349813,"endHours":13.800010147349813,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"13:48","end":"14:48","startHours":13.800010147349813,"endHours":14.800010147349813,"planetary_lord":"Moon"},{"name":"Hora 11","start":"14:48","end":"15:48","startHours":14.800010147349813,"endHours":15.800010147349813,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"15:48","end":"16:48","startHours":15.800010147349813,"endHours":16.800010147349813,"planetary_lord":"Venus"},{"name":"Hora 13","start":"16:48","end":"17:48","startHours":16.800010147349813,"endHours":17.800010147349813,"planetary_lord":"Sun"},{"name":"Hora 14","start":"17:48","end":"18:48","startHours":17.800010147349813,"endHours":18.800010147349813,"planetary_lord":"Mars"},{"name":"Hora 15","start":"18:48","end":"19:48","startHours":18.800010147349813,"endHours":19.800010147349813,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"19:48","end":"20:48","startHours":19.800010147349813,"endHours":20.800010147349813,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"20:48","end":"21:48","startHours":20.800010147349813,"endHours":21.800010147349813,"planetary_lord":"Moon"},{"name":"Hora 18","start":"21:48","end":"22:48","startHours":21.800010147349813,"endHours":22.800010147349813,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"22:48","end":"23:48","startHours":22.800010147349813,"endHours":23.800010147349813,"planetary_lord":"Venus"},{"name":"Hora 20","start":"23:48","end":"00:48","startHours":23.800010147349813,"endHours":24.800010147349813,"planetary_lord":"Sun"},{"name":"Hora 21","start":"00:48","end":"01:48","startHours":24.800010147349813,"endHours":25.800010147349813,"planetary_lord":"Mars"},{"name":"Hora 22","start":"01:48","end":"02:48","startHours":25.800010147349813,"endHours":26.800010147349813,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"02:48","end":"03:48","startHours":26.800010147349813,"endHours":27.800010147349813,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"03:48","end":"04:48","startHours":27.800010147349813,"endHours":28.800010147349813,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.028066199740593,"eotMinutes":-3.705178323396069,"ayanamsa":23.8251}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Tṛtīyā · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"sydney"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 1, 1998 CE · Sydney, Australia · Vidhyamitra","description":"January 1, 1998 CE for Sydney, Australia: Śukla Tṛtīyā, sūryodaya 04:48, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/sydney/1998-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/sydney/1998-01-01","sa":"https://sa.vidhyamitra.com/city/sydney/1998-01-01","hi":"https://hi.vidhyamitra.com/city/sydney/1998-01-01","x-default":"https://vidhyamitra.com/city/sydney/1998-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T15:35:46.729Z","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":"2026-06-01T15:35:46.729Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T15:35:46.729Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}