{"id":"vidhyamitra:city-day:perth:1990-05-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1990-05-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1990-05-06","date_display":"May 6, 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":5,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448017.770833,"kali_year":5092,"ahargana":1859552.2708,"sun":{"sidereal_longitude":21.6052,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":158.562,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.9568,"elapsed_within_tithi_degrees":4.9568},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.562,"elapsed_within_degrees":11.8953},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":180.1671},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":5,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448017.770833,"ahargana":1859552.2708,"kali_year":5092,"ayanamsa_lahiri":23.7181,"grahas":{"sun":{"sidereal_longitude":21.547676000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":160.03797599999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":-3.2675},"mars":{"sidereal_longitude":317.67847600000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":18.538476000000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":74.18527599999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":338.550076,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":271.395176,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":291.9719,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":111.9719,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1990,"month":5,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448017.770833,"kali_year":5092,"ahargana":1859552.2708,"sun":{"sidereal_longitude":21.6052,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":158.562,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":136.9568,"elapsed_within_tithi_degrees":4.9568},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.562,"elapsed_within_degrees":11.8953},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":180.1671},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.267,"elongation":136.957},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.267,"opposition_distance":43.043}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"06:51","sunsetLocal":"17:35","solarNoonLocal":"12:13","dayLengthHours":10.727233566289065,"dayLengthDisplay":"10 Hours 43 Mins 38 Secs","nightLengthDisplay":"13 Hours 16 Mins 22 Secs","moonriseLocal":"15:21","moonsetLocal":"03:34","rahuKala":{"name":"Rāhu Kāla","start":"16:14","end":"17:35","startHours":16.241395303574055,"endHours":17.58229949936019,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:13","end":"13:34","startHours":12.218682716215657,"endHours":13.559586912001791,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:54","end":"16:14","startHours":14.900491107787925,"endHours":16.241395303574055,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:43","startHours":9.358087098538574,"endHours":9.715661550748209,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:35","startHours":7.30203399833317,"endHours":7.588093560100878,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:35","startHours":11.861108264006022,"endHours":12.576257168425292,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:25","end":"06:08","startHours":5.424768124232583,"endHours":6.139917028651854,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:58","end":"06:51","startHours":5.9611298025470365,"endHours":6.855065933071125,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:43","startHours":14.006554977263836,"endHours":14.721703881683107,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:23","end":"17:47","startHours":17.38229949936019,"endHours":17.78229949936019,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:35","end":"18:02","startHours":17.58229949936019,"endHours":18.029267564622234,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:20","end":"19:05","startHours":17.33229949936019,"endHours":19.08229949936019,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:35","startHours":23.86110826400602,"endHours":24.576257168425293,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:51","end":"08:12","startHours":6.855065933071125,"endHours":8.195970128857258,"quality":"inauspicious"},{"name":"Chala","start":"08:12","end":"09:32","startHours":8.195970128857258,"endHours":9.536874324643392,"quality":"neutral"},{"name":"Labha","start":"09:32","end":"10:53","startHours":9.536874324643392,"endHours":10.877778520429525,"quality":"auspicious"},{"name":"Amṛta","start":"10:53","end":"12:13","startHours":10.877778520429525,"endHours":12.218682716215657,"quality":"auspicious"},{"name":"Kāla","start":"12:13","end":"13:34","startHours":12.218682716215657,"endHours":13.559586912001791,"quality":"inauspicious"},{"name":"Śubha","start":"13:34","end":"14:54","startHours":13.559586912001791,"endHours":14.900491107787925,"quality":"auspicious"},{"name":"Roga","start":"14:54","end":"16:14","startHours":14.900491107787925,"endHours":16.241395303574055,"quality":"inauspicious"},{"name":"Udveg","start":"16:14","end":"17:35","startHours":16.241395303574055,"endHours":17.58229949936019,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:35","end":"19:14","startHours":17.58229949936019,"endHours":19.241395303574055,"quality":"auspicious"},{"name":"Roga","start":"19:14","end":"20:54","startHours":19.241395303574055,"endHours":20.90049110778792,"quality":"inauspicious"},{"name":"Udveg","start":"20:54","end":"22:34","startHours":20.90049110778792,"endHours":22.55958691200179,"quality":"inauspicious"},{"name":"Chala","start":"22:34","end":"00:13","startHours":22.55958691200179,"endHours":24.218682716215657,"quality":"neutral"},{"name":"Labha","start":"00:13","end":"01:53","startHours":24.218682716215657,"endHours":25.877778520429523,"quality":"auspicious"},{"name":"Amṛta","start":"01:53","end":"03:32","startHours":25.877778520429523,"endHours":27.536874324643392,"quality":"auspicious"},{"name":"Kāla","start":"03:32","end":"05:12","startHours":27.536874324643392,"endHours":29.195970128857258,"quality":"inauspicious"},{"name":"Śubha","start":"05:12","end":"06:51","startHours":29.195970128857258,"endHours":30.855065933071124,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:51","end":"07:51","startHours":6.855065933071125,"endHours":7.855065933071125,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:51","end":"08:51","startHours":7.855065933071125,"endHours":8.855065933071124,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:51","end":"09:51","startHours":8.855065933071124,"endHours":9.855065933071124,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:51","end":"10:51","startHours":9.855065933071124,"endHours":10.855065933071124,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:51","end":"11:51","startHours":10.855065933071124,"endHours":11.855065933071124,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:51","end":"12:51","startHours":11.855065933071124,"endHours":12.855065933071124,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:51","end":"13:51","startHours":12.855065933071124,"endHours":13.855065933071124,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:51","end":"14:51","startHours":13.855065933071124,"endHours":14.855065933071124,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:51","end":"15:51","startHours":14.855065933071124,"endHours":15.855065933071124,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:51","end":"16:51","startHours":15.855065933071124,"endHours":16.855065933071124,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:51","end":"17:51","startHours":16.855065933071124,"endHours":17.855065933071124,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:51","end":"18:51","startHours":17.855065933071124,"endHours":18.855065933071124,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:51","end":"19:51","startHours":18.855065933071124,"endHours":19.855065933071124,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:51","end":"20:51","startHours":19.855065933071124,"endHours":20.855065933071124,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:51","end":"21:51","startHours":20.855065933071124,"endHours":21.855065933071124,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:51","end":"22:51","startHours":21.855065933071124,"endHours":22.855065933071124,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:51","end":"23:51","startHours":22.855065933071124,"endHours":23.855065933071124,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:51","end":"00:51","startHours":23.855065933071124,"endHours":24.855065933071124,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:51","end":"01:51","startHours":24.855065933071124,"endHours":25.855065933071124,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:51","end":"02:51","startHours":25.855065933071124,"endHours":26.855065933071124,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:51","end":"03:51","startHours":26.855065933071124,"endHours":27.855065933071124,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:51","end":"04:51","startHours":27.855065933071124,"endHours":28.855065933071124,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:51","end":"05:51","startHours":28.855065933071124,"endHours":29.855065933071124,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:51","end":"06:51","startHours":29.855065933071124,"endHours":30.855065933071124,"planetary_lord":"Jupiter"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":16.41191019217592,"eotMinutes":3.4370370270605552,"ayanamsa":23.7181}},"calendars":{"vikram_samvat":2047,"vikram_samvatsara":"Subhānu","saka_samvat":1912,"saka_samvatsara":"Pramoda","bengali_samvat":1397,"malayalam_era":1166,"nanakshahi_year":521,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvādaśī · Vikram 2047 Subhānu · Śaka 1912 Pramoda"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 6, 1990 CE · Perth, Australia · Vidhyamitra","description":"May 6, 1990 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 06:51, sūryāsta 17:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1990-05-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1990-05-06","sa":"https://sa.vidhyamitra.com/city/perth/1990-05-06","hi":"https://hi.vidhyamitra.com/city/perth/1990-05-06","x-default":"https://vidhyamitra.com/city/perth/1990-05-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T06:57:09.917Z","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":"2026-05-23T06:57:09.917Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T06:57:09.917Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}