{"id":"vidhyamitra:city-day:perth:2087-05-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2087-05-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2087-05-04","date_display":"May 4, 2087 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":2087,"month":5,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2483444.770833,"kali_year":5189,"ahargana":1894979.2708,"sun":{"sidereal_longitude":18.6179,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":35.8771,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":17.2592,"elapsed_within_tithi_degrees":5.2592},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":35.8771,"elapsed_within_degrees":9.2104},"yoga":{"number":5,"name":"Śobhana","sum_longitude":54.495},"karana":{"half_tithi_index":2,"name":"Bālava"},"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":2087,"month":5,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2483444.770833,"ahargana":1894979.2708,"kali_year":5189,"ayanamsa_lahiri":25.073,"grahas":{"sun":{"sidereal_longitude":18.771905000000004,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":37.174105,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-0.0783},"mars":{"sidereal_longitude":91.88690499999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":35.86380500000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":132.975905,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":62.49840499999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":9.030005000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":214.879,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":34.879,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2087,"month":5,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2483444.770833,"kali_year":5189,"ahargana":1894979.2708,"sun":{"sidereal_longitude":18.6179,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":35.8771,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":17.2592,"elapsed_within_tithi_degrees":5.2592},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3,"moon_longitude":35.8771,"elapsed_within_degrees":9.2104},"yoga":{"number":5,"name":"Śobhana","sum_longitude":54.495},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.078,"elongation":17.259},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.078,"opposition_distance":162.741}},"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":"06:50","sunsetLocal":"17:36","solarNoonLocal":"12:13","dayLengthHours":10.765269685492356,"dayLengthDisplay":"10 Hours 45 Mins 55 Secs","nightLengthDisplay":"13 Hours 14 Mins 05 Secs","moonriseLocal":"08:18","moonsetLocal":"18:36","rahuKala":{"name":"Rāhu Kāla","start":"16:16","end":"17:36","startHours":16.258635171758304,"endHours":17.604293882444846,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:13","end":"13:34","startHours":12.221659039698668,"endHours":13.567317750385214,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:55","end":"16:16","startHours":14.912976461071757,"endHours":16.258635171758304,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:43","startHours":9.350920456900708,"endHours":9.709762779750452,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:34","startHours":7.287577100514673,"endHours":7.574650958794469,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:35","startHours":11.862816716848924,"endHours":12.580501362548413,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:24","end":"06:07","startHours":5.40365490555351,"endHours":6.121339551253,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:57","end":"06:50","startHours":5.941918389828128,"endHours":6.839024196952491,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:44","startHours":14.015870653947395,"endHours":14.733555299646886,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:24","end":"17:48","startHours":17.404293882444847,"endHours":17.804293882444846,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:36","end":"18:03","startHours":17.604293882444846,"endHours":18.052846786007027,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:21","end":"19:06","startHours":17.354293882444846,"endHours":19.104293882444846,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:35","startHours":23.862816716848922,"endHours":24.580501362548414,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:50","end":"08:11","startHours":6.839024196952491,"endHours":8.184682907639036,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:32","startHours":8.184682907639036,"endHours":9.53034161832558,"quality":"neutral"},{"name":"Labha","start":"09:32","end":"10:53","startHours":9.53034161832558,"endHours":10.876000329012125,"quality":"auspicious"},{"name":"Amṛta","start":"10:53","end":"12:13","startHours":10.876000329012125,"endHours":12.221659039698668,"quality":"auspicious"},{"name":"Kāla","start":"12:13","end":"13:34","startHours":12.221659039698668,"endHours":13.567317750385214,"quality":"inauspicious"},{"name":"Śubha","start":"13:34","end":"14:55","startHours":13.567317750385214,"endHours":14.912976461071757,"quality":"auspicious"},{"name":"Roga","start":"14:55","end":"16:16","startHours":14.912976461071757,"endHours":16.258635171758304,"quality":"inauspicious"},{"name":"Udveg","start":"16:16","end":"17:36","startHours":16.258635171758304,"endHours":17.604293882444846,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:36","end":"19:16","startHours":17.604293882444846,"endHours":19.2586351717583,"quality":"auspicious"},{"name":"Roga","start":"19:16","end":"20:55","startHours":19.2586351717583,"endHours":20.912976461071757,"quality":"inauspicious"},{"name":"Udveg","start":"20:55","end":"22:34","startHours":20.912976461071757,"endHours":22.567317750385214,"quality":"inauspicious"},{"name":"Chala","start":"22:34","end":"00:13","startHours":22.567317750385214,"endHours":24.221659039698668,"quality":"neutral"},{"name":"Labha","start":"00:13","end":"01:53","startHours":24.221659039698668,"endHours":25.876000329012122,"quality":"auspicious"},{"name":"Amṛta","start":"01:53","end":"03:32","startHours":25.876000329012122,"endHours":27.53034161832558,"quality":"auspicious"},{"name":"Kāla","start":"03:32","end":"05:11","startHours":27.53034161832558,"endHours":29.184682907639036,"quality":"inauspicious"},{"name":"Śubha","start":"05:11","end":"06:50","startHours":29.184682907639036,"endHours":30.83902419695249,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.839024196952491,"endHours":7.839024196952491,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.839024196952491,"endHours":8.83902419695249,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.83902419695249,"endHours":9.83902419695249,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.83902419695249,"endHours":10.83902419695249,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.83902419695249,"endHours":11.83902419695249,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.83902419695249,"endHours":12.83902419695249,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.83902419695249,"endHours":13.83902419695249,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.83902419695249,"endHours":14.83902419695249,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.83902419695249,"endHours":15.83902419695249,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.83902419695249,"endHours":16.83902419695249,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.83902419695249,"endHours":17.83902419695249,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.83902419695249,"endHours":18.83902419695249,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.83902419695249,"endHours":19.83902419695249,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.83902419695249,"endHours":20.83902419695249,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.83902419695249,"endHours":21.83902419695249,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.83902419695249,"endHours":22.83902419695249,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.83902419695249,"endHours":23.83902419695249,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.83902419695249,"endHours":24.83902419695249,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.83902419695249,"endHours":25.83902419695249,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.83902419695249,"endHours":26.83902419695249,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.83902419695249,"endHours":27.83902419695249,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.83902419695249,"endHours":28.83902419695249,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.83902419695249,"endHours":29.83902419695249,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.83902419695249,"endHours":30.83902419695249,"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":["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":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":15.992570637816035,"eotMinutes":3.258457618079846,"ayanamsa":25.073}},"calendars":{"vikram_samvat":2144,"vikram_samvatsara":"Raudra","saka_samvat":2009,"saka_samvatsara":"Plavaṅga","bengali_samvat":1494,"malayalam_era":1263,"nanakshahi_year":618,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvitīyā · Vikram 2144 Raudra · Śaka 2009 Plavaṅga"},"festivals":[],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 4, 2087 CE · Perth, Australia · Vidhyamitra","description":"May 4, 2087 CE for Perth, Australia: Śukla Dvitīyā, sūryodaya 06:50, sūryāsta 17:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2087-05-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2087-05-04","sa":"https://sa.vidhyamitra.com/city/perth/2087-05-04","hi":"https://hi.vidhyamitra.com/city/perth/2087-05-04","x-default":"https://vidhyamitra.com/city/perth/2087-05-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:59:25.100Z","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":"2026-06-02T07:59:25.100Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:59:25.100Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}