{"id":"vidhyamitra:city-day:sydney:1990-01-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/sydney/1990-01-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-01-01","date_display":"January 1, 1990 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":1990,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447892.770833,"kali_year":5091,"ahargana":1859427.2708,"sun":{"sidereal_longitude":256.4306,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.9444,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.5138,"elapsed_within_tithi_degrees":11.5138},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9444,"elapsed_within_degrees":10.6111},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.375},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"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":1990,"month":1,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447892.770833,"ahargana":1859427.2708,"kali_year":5091,"ayanamsa_lahiri":23.7133,"grahas":{"sun":{"sidereal_longitude":256.640852,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":303.341852,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":0.4191},"mars":{"sidereal_longitude":226.09655199999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":272.29185200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":71.67155200000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":282.68225200000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":261.6595520000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":298.595,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":118.595,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":1,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447892.770833,"kali_year":5091,"ahargana":1859427.2708,"sun":{"sidereal_longitude":256.4306,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":303.9444,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":47.5138,"elapsed_within_tithi_degrees":11.5138},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":303.9444,"elapsed_within_degrees":10.6111},"yoga":{"number":16,"name":"Siddhi","sum_longitude":200.375},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.419,"elongation":47.514},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.419,"opposition_distance":132.486}},"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":14.362759399379641,"dayLengthDisplay":"14 Hours 21 Mins 46 Secs","nightLengthDisplay":"9 Hours 38 Mins 14 Secs","moonriseLocal":"08:29","moonsetLocal":"21:43","rahuKala":{"name":"Rāhu Kāla","start":"06:36","end":"08:23","startHours":6.595098197289233,"endHours":8.390443122211689,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:11","end":"11:59","startHours":10.185788047134142,"endHours":11.9811329720566,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:47","end":"15:34","startHours":13.776477896979053,"endHours":15.57182282190151,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:09","end":"08:38","startHours":8.151063798888694,"endHours":8.629822445534682,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:24","end":"05:47","startHours":5.398201580674263,"endHours":5.781208497991053,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:30","end":"12:28","startHours":11.502374325410612,"endHours":12.459891618702587,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:53","end":"03:51","startHours":2.8847186857828255,"endHours":3.8422359790748017,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:36","end":"04:48","startHours":3.6028566557518076,"endHours":4.799753272366778,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:20","startHours":14.374926205286538,"endHours":15.332443498578515,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.96251267174642,"endHours":19.36251267174642,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:46","startHours":19.16251267174642,"endHours":19.760960980053905,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.91251267174642,"endHours":20.66251267174642,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:30","end":"00:28","startHours":23.50237432541061,"endHours":24.45989161870259,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"04:48","end":"06:36","startHours":4.799753272366778,"endHours":6.595098197289233,"quality":"auspicious"},{"name":"Kāla","start":"06:36","end":"08:23","startHours":6.595098197289233,"endHours":8.390443122211689,"quality":"inauspicious"},{"name":"Śubha","start":"08:23","end":"10:11","startHours":8.390443122211689,"endHours":10.185788047134142,"quality":"auspicious"},{"name":"Roga","start":"10:11","end":"11:59","startHours":10.185788047134142,"endHours":11.9811329720566,"quality":"inauspicious"},{"name":"Udveg","start":"11:59","end":"13:47","startHours":11.9811329720566,"endHours":13.776477896979053,"quality":"inauspicious"},{"name":"Chala","start":"13:47","end":"15:34","startHours":13.776477896979053,"endHours":15.57182282190151,"quality":"neutral"},{"name":"Labha","start":"15:34","end":"17:22","startHours":15.57182282190151,"endHours":17.367167746823963,"quality":"auspicious"},{"name":"Amṛta","start":"17:22","end":"19:10","startHours":17.367167746823963,"endHours":19.16251267174642,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:10","end":"20:22","startHours":19.16251267174642,"endHours":20.367167746823966,"quality":"neutral"},{"name":"Labha","start":"20:22","end":"21:34","startHours":20.367167746823966,"endHours":21.57182282190151,"quality":"auspicious"},{"name":"Amṛta","start":"21:34","end":"22:47","startHours":21.57182282190151,"endHours":22.776477896979053,"quality":"auspicious"},{"name":"Kāla","start":"22:47","end":"23:59","startHours":22.776477896979053,"endHours":23.9811329720566,"quality":"inauspicious"},{"name":"Śubha","start":"23:59","end":"01:11","startHours":23.9811329720566,"endHours":25.185788047134146,"quality":"auspicious"},{"name":"Roga","start":"01:11","end":"02:23","startHours":25.185788047134146,"endHours":26.39044312221169,"quality":"inauspicious"},{"name":"Udveg","start":"02:23","end":"03:36","startHours":26.39044312221169,"endHours":27.595098197289232,"quality":"inauspicious"},{"name":"Chala","start":"03:36","end":"04:48","startHours":27.595098197289232,"endHours":28.79975327236678,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"04:48","end":"05:48","startHours":4.799753272366778,"endHours":5.799753272366778,"planetary_lord":"Moon"},{"name":"Hora 2","start":"05:48","end":"06:48","startHours":5.799753272366778,"endHours":6.799753272366778,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"06:48","end":"07:48","startHours":6.799753272366778,"endHours":7.799753272366778,"planetary_lord":"Venus"},{"name":"Hora 4","start":"07:48","end":"08:48","startHours":7.799753272366778,"endHours":8.799753272366779,"planetary_lord":"Sun"},{"name":"Hora 5","start":"08:48","end":"09:48","startHours":8.799753272366779,"endHours":9.799753272366779,"planetary_lord":"Mars"},{"name":"Hora 6","start":"09:48","end":"10:48","startHours":9.799753272366779,"endHours":10.799753272366779,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"10:48","end":"11:48","startHours":10.799753272366779,"endHours":11.799753272366779,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"11:48","end":"12:48","startHours":11.799753272366779,"endHours":12.799753272366779,"planetary_lord":"Moon"},{"name":"Hora 9","start":"12:48","end":"13:48","startHours":12.799753272366779,"endHours":13.799753272366779,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"13:48","end":"14:48","startHours":13.799753272366779,"endHours":14.799753272366779,"planetary_lord":"Venus"},{"name":"Hora 11","start":"14:48","end":"15:48","startHours":14.799753272366779,"endHours":15.799753272366779,"planetary_lord":"Sun"},{"name":"Hora 12","start":"15:48","end":"16:48","startHours":15.799753272366779,"endHours":16.79975327236678,"planetary_lord":"Mars"},{"name":"Hora 13","start":"16:48","end":"17:48","startHours":16.79975327236678,"endHours":17.79975327236678,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"17:48","end":"18:48","startHours":17.79975327236678,"endHours":18.79975327236678,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"18:48","end":"19:48","startHours":18.79975327236678,"endHours":19.79975327236678,"planetary_lord":"Moon"},{"name":"Hora 16","start":"19:48","end":"20:48","startHours":19.79975327236678,"endHours":20.79975327236678,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"20:48","end":"21:48","startHours":20.79975327236678,"endHours":21.79975327236678,"planetary_lord":"Venus"},{"name":"Hora 18","start":"21:48","end":"22:48","startHours":21.79975327236678,"endHours":22.79975327236678,"planetary_lord":"Sun"},{"name":"Hora 19","start":"22:48","end":"23:48","startHours":22.79975327236678,"endHours":23.79975327236678,"planetary_lord":"Mars"},{"name":"Hora 20","start":"23:48","end":"00:48","startHours":23.79975327236678,"endHours":24.79975327236678,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"00:48","end":"01:48","startHours":24.79975327236678,"endHours":25.79975327236678,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"01:48","end":"02:48","startHours":25.79975327236678,"endHours":26.79975327236678,"planetary_lord":"Moon"},{"name":"Hora 23","start":"02:48","end":"03:48","startHours":26.79975327236678,"endHours":27.79975327236678,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"03:48","end":"04:48","startHours":27.79975327236678,"endHours":28.79975327236678,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"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":-23.0326509196735,"eotMinutes":-3.705178323396069,"ayanamsa":23.7133}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"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 Caturthī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":"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, 1990 CE · Sydney, Australia · Vidhyamitra","description":"January 1, 1990 CE for Sydney, Australia: Śukla Caturthī, sūryodaya 04:48, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/sydney/1990-01-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/sydney/1990-01-01","sa":"https://sa.vidhyamitra.com/city/sydney/1990-01-01","hi":"https://hi.vidhyamitra.com/city/sydney/1990-01-01","x-default":"https://vidhyamitra.com/city/sydney/1990-01-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:20:51.859Z","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":"2026-06-02T07:20:51.859Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:20:51.859Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}