{"id":"vidhyamitra:city-day:perth:2027-05-09:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2027-05-09","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2027-05-09","date_display":"May 9, 2027 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":2027,"month":5,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461534.770833,"kali_year":5129,"ahargana":1873069.2708,"sun":{"sidereal_longitude":23.9398,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":56.4892,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":32.5494,"elapsed_within_tithi_degrees":8.5494},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.4892,"elapsed_within_degrees":3.1559},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.429},"karana":{"half_tithi_index":5,"name":"Gara"},"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":2027,"month":5,"day":9,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461534.770833,"ahargana":1873069.2708,"kali_year":5129,"ayanamsa_lahiri":24.2351,"grahas":{"sun":{"sidereal_longitude":23.982928000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":58.49762799999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":3.8678},"mars":{"sidereal_longitude":123.42052799999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":35.271127999999976,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":113.55602799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":358.321728,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":357.345328,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":295.7762,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":115.7762,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"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":2027,"month":5,"day":9,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461534.770833,"kali_year":5129,"ahargana":1873069.2708,"sun":{"sidereal_longitude":23.9398,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":56.4892,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":32.5494,"elapsed_within_tithi_degrees":8.5494},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.4892,"elapsed_within_degrees":3.1559},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.429},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.868,"elongation":32.549},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.868,"opposition_distance":147.451}},"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":"06:53","sunsetLocal":"17:32","solarNoonLocal":"12:13","dayLengthHours":10.650411363022087,"dayLengthDisplay":"10 Hours 39 Mins 01 Secs","nightLengthDisplay":"13 Hours 20 Mins 59 Secs","moonriseLocal":"09:30","moonsetLocal":"19:32","rahuKala":{"name":"Rāhu Kāla","start":"16:13","end":"17:32","startHours":16.209346620060845,"endHours":17.540648040438608,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:13","end":"13:33","startHours":12.215442358927564,"endHours":13.546743779305324,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:53","end":"16:13","startHours":14.878045199683086,"endHours":16.209346620060845,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:44","startHours":9.375332662121673,"endHours":9.73034637422241,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:20","end":"07:37","startHours":7.33400381754244,"endHours":7.618014787223029,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.860428646826827,"endHours":12.570456071028302,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:11","startHours":5.470181829013575,"endHours":6.180209253215048,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:00","end":"06:53","startHours":6.002702397164679,"endHours":6.89023667741652,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:42","startHours":13.990510919431244,"endHours":14.700538343632717,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:20","end":"17:44","startHours":17.34064804043861,"endHours":17.740648040438607,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:32","end":"17:59","startHours":17.540648040438608,"endHours":17.98441518056453,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:17","end":"19:02","startHours":17.290648040438608,"endHours":19.040648040438608,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86042864682683,"endHours":24.5704560710283,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:53","end":"08:13","startHours":6.89023667741652,"endHours":8.22153809779428,"quality":"inauspicious"},{"name":"Chala","start":"08:13","end":"09:33","startHours":8.22153809779428,"endHours":9.552839518172043,"quality":"neutral"},{"name":"Labha","start":"09:33","end":"10:53","startHours":9.552839518172043,"endHours":10.884140938549802,"quality":"auspicious"},{"name":"Amṛta","start":"10:53","end":"12:13","startHours":10.884140938549802,"endHours":12.215442358927564,"quality":"auspicious"},{"name":"Kāla","start":"12:13","end":"13:33","startHours":12.215442358927564,"endHours":13.546743779305324,"quality":"inauspicious"},{"name":"Śubha","start":"13:33","end":"14:53","startHours":13.546743779305324,"endHours":14.878045199683086,"quality":"auspicious"},{"name":"Roga","start":"14:53","end":"16:13","startHours":14.878045199683086,"endHours":16.209346620060845,"quality":"inauspicious"},{"name":"Udveg","start":"16:13","end":"17:32","startHours":16.209346620060845,"endHours":17.540648040438608,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:32","end":"19:13","startHours":17.540648040438608,"endHours":19.20934662006085,"quality":"auspicious"},{"name":"Roga","start":"19:13","end":"20:53","startHours":19.20934662006085,"endHours":20.878045199683086,"quality":"inauspicious"},{"name":"Udveg","start":"20:53","end":"22:33","startHours":20.878045199683086,"endHours":22.546743779305324,"quality":"inauspicious"},{"name":"Chala","start":"22:33","end":"00:13","startHours":22.546743779305324,"endHours":24.215442358927564,"quality":"neutral"},{"name":"Labha","start":"00:13","end":"01:53","startHours":24.215442358927564,"endHours":25.884140938549805,"quality":"auspicious"},{"name":"Amṛta","start":"01:53","end":"03:33","startHours":25.884140938549805,"endHours":27.552839518172043,"quality":"auspicious"},{"name":"Kāla","start":"03:33","end":"05:13","startHours":27.552839518172043,"endHours":29.22153809779428,"quality":"inauspicious"},{"name":"Śubha","start":"05:13","end":"06:53","startHours":29.22153809779428,"endHours":30.89023667741652,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:53","end":"07:53","startHours":6.89023667741652,"endHours":7.89023667741652,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:53","end":"08:53","startHours":7.89023667741652,"endHours":8.890236677416521,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:53","end":"09:53","startHours":8.890236677416521,"endHours":9.890236677416521,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:53","end":"10:53","startHours":9.890236677416521,"endHours":10.890236677416521,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:53","end":"11:53","startHours":10.890236677416521,"endHours":11.890236677416521,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:53","end":"12:53","startHours":11.890236677416521,"endHours":12.890236677416521,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:53","end":"13:53","startHours":12.890236677416521,"endHours":13.890236677416521,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:53","end":"14:53","startHours":13.890236677416521,"endHours":14.890236677416521,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:53","end":"15:53","startHours":14.890236677416521,"endHours":15.890236677416521,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:53","end":"16:53","startHours":15.890236677416521,"endHours":16.89023667741652,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:53","end":"17:53","startHours":16.89023667741652,"endHours":17.89023667741652,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:53","end":"18:53","startHours":17.89023667741652,"endHours":18.89023667741652,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:53","end":"19:53","startHours":18.89023667741652,"endHours":19.89023667741652,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:53","end":"20:53","startHours":19.89023667741652,"endHours":20.89023667741652,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:53","end":"21:53","startHours":20.89023667741652,"endHours":21.89023667741652,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:53","end":"22:53","startHours":21.89023667741652,"endHours":22.89023667741652,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:53","end":"23:53","startHours":22.89023667741652,"endHours":23.89023667741652,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:53","end":"00:53","startHours":23.89023667741652,"endHours":24.89023667741652,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:53","end":"01:53","startHours":24.89023667741652,"endHours":25.89023667741652,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:53","end":"02:53","startHours":25.89023667741652,"endHours":26.89023667741652,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:53","end":"03:53","startHours":26.89023667741652,"endHours":27.89023667741652,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:53","end":"04:53","startHours":27.89023667741652,"endHours":28.89023667741652,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:53","end":"05:53","startHours":28.89023667741652,"endHours":29.89023667741652,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:53","end":"06:53","startHours":29.89023667741652,"endHours":30.89023667741652,"planetary_lord":"Jupiter"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","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":17.252509466837694,"eotMinutes":3.631458464346112,"ayanamsa":24.2351}},"calendars":{"vikram_samvat":2084,"vikram_samvatsara":"Raudra","saka_samvat":1949,"saka_samvatsara":"Plavaṅga","bengali_samvat":1434,"malayalam_era":1203,"nanakshahi_year":558,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Tṛtīyā · Vikram 2084 Raudra · Śaka 1949 Plavaṅga"},"festivals":[{"id":"akshaya-tritiya","name":"Akṣaya Tṛtīyā","name_sanskrit":"अक्षय तृतीया","tradition":"Pan-Hindu","significance":"\"Inexhaustible third\"; auspicious for any new venture.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":1},{"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":"parashurama-jayanti","name":"Paraśurāma Jayantī","name_sanskrit":"परशुराम जयन्ती","tradition":"Vaishnava","associated_deity":"Paraśurāma (6th daśāvatāra of Krishna)","deity_avatara_index":16,"significance":"Paraśurāma's manifestation; ciranjīvi-pratiṣṭhā. Coincides with Akṣaya Tṛtīyā.","vrata":true,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":2,"sources":["Bhāgavata 9.15-16"]},{"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 9, 2027 CE · Perth, Australia · Vidhyamitra","description":"May 9, 2027 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 06:53, sūryāsta 17:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2027-05-09","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2027-05-09","sa":"https://sa.vidhyamitra.com/city/perth/2027-05-09","hi":"https://hi.vidhyamitra.com/city/perth/2027-05-09","x-default":"https://vidhyamitra.com/city/perth/2027-05-09"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T23:08:39.893Z","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":"2026-05-14T23:08:39.893Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T23:08:39.893Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}