{"id":"vidhyamitra:city-day:perth:2128-05-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2128-05-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2128-05-18","date_display":"May 18, 2128 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":2128,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498433.770833,"kali_year":5230,"ahargana":1909968.2708,"sun":{"sidereal_longitude":31.4886,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":254.7296,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":223.241,"elapsed_within_tithi_degrees":7.241},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.7296,"elapsed_within_degrees":1.3963},"yoga":{"number":22,"name":"Sādhya","sum_longitude":286.2183},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2128,"month":5,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498433.770833,"ahargana":1909968.2708,"kali_year":5230,"ayanamsa_lahiri":25.6463,"grahas":{"sun":{"sidereal_longitude":31.81571500000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":258.13631499999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false,"latitude":4.109},"mars":{"sidereal_longitude":54.951014999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":13.998114999999984,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":312.42981499999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":33.013514999999984,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":155.738515,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":140.6896,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.6896,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"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":2128,"month":5,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498433.770833,"kali_year":5230,"ahargana":1909968.2708,"sun":{"sidereal_longitude":31.4886,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":254.7296,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":223.241,"elapsed_within_tithi_degrees":7.241},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":254.7296,"elapsed_within_degrees":1.3963},"yoga":{"number":22,"name":"Sādhya","sum_longitude":286.2183},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.109,"elongation":136.759},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.109,"opposition_distance":43.241}},"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":"07:00","sunsetLocal":"17:26","solarNoonLocal":"12:13","dayLengthHours":10.432249696502014,"dayLengthDisplay":"10 Hours 25 Mins 56 Secs","nightLengthDisplay":"13 Hours 34 Mins 04 Secs","moonriseLocal":"20:14","moonsetLocal":"10:22","rahuKala":{"name":"Rāhu Kāla","start":"14:49","end":"16:08","startHours":14.82254272095101,"endHours":16.12657393301376,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:36","end":"10:55","startHours":9.606417872700002,"endHours":10.910449084762753,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.518511508888256,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:47","startHours":9.432547044424968,"endHours":9.780288700975035,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:26","end":"07:43","startHours":7.433032519262082,"endHours":7.7112258445021356,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.86673864027544,"endHours":12.562221953375573,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:36","end":"06:18","startHours":5.60738882237423,"endHours":6.302872135474364,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:08","end":"07:00","startHours":6.129001307199331,"endHours":6.9983554485744985,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:39","startHours":13.95318857957584,"endHours":14.648671892675974,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:14","end":"17:38","startHours":17.230605145076513,"endHours":17.63060514507651,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:26","end":"17:52","startHours":17.430605145076512,"endHours":17.865282215764097,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:11","end":"18:56","startHours":17.180605145076512,"endHours":18.930605145076512,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86673864027544,"endHours":24.562221953375573,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:00","end":"08:18","startHours":6.9983554485744985,"endHours":8.30238666063725,"quality":"inauspicious"},{"name":"Udveg","start":"08:18","end":"09:36","startHours":8.30238666063725,"endHours":9.606417872700002,"quality":"inauspicious"},{"name":"Chala","start":"09:36","end":"10:55","startHours":9.606417872700002,"endHours":10.910449084762753,"quality":"neutral"},{"name":"Labha","start":"10:55","end":"12:13","startHours":10.910449084762753,"endHours":12.214480296825506,"quality":"auspicious"},{"name":"Amṛta","start":"12:13","end":"13:31","startHours":12.214480296825506,"endHours":13.518511508888256,"quality":"auspicious"},{"name":"Kāla","start":"13:31","end":"14:49","startHours":13.518511508888256,"endHours":14.82254272095101,"quality":"inauspicious"},{"name":"Śubha","start":"14:49","end":"16:08","startHours":14.82254272095101,"endHours":16.12657393301376,"quality":"auspicious"},{"name":"Roga","start":"16:08","end":"17:26","startHours":16.12657393301376,"endHours":17.430605145076512,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:26","end":"19:08","startHours":17.430605145076512,"endHours":19.12657393301376,"quality":"inauspicious"},{"name":"Śubha","start":"19:08","end":"20:49","startHours":19.12657393301376,"endHours":20.82254272095101,"quality":"auspicious"},{"name":"Roga","start":"20:49","end":"22:31","startHours":20.82254272095101,"endHours":22.518511508888256,"quality":"inauspicious"},{"name":"Udveg","start":"22:31","end":"00:13","startHours":22.518511508888256,"endHours":24.214480296825506,"quality":"inauspicious"},{"name":"Chala","start":"00:13","end":"01:55","startHours":24.214480296825506,"endHours":25.910449084762753,"quality":"neutral"},{"name":"Labha","start":"01:55","end":"03:36","startHours":25.910449084762753,"endHours":27.6064178727,"quality":"auspicious"},{"name":"Amṛta","start":"03:36","end":"05:18","startHours":27.6064178727,"endHours":29.30238666063725,"quality":"auspicious"},{"name":"Kāla","start":"05:18","end":"07:00","startHours":29.30238666063725,"endHours":30.9983554485745,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":6.9983554485744985,"endHours":7.9983554485744985,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":7.9983554485744985,"endHours":8.998355448574499,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":8.998355448574499,"endHours":9.998355448574499,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":9.998355448574499,"endHours":10.998355448574499,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":10.998355448574499,"endHours":11.998355448574499,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":11.998355448574499,"endHours":12.998355448574499,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":12.998355448574499,"endHours":13.998355448574499,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":13.998355448574499,"endHours":14.998355448574499,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":14.998355448574499,"endHours":15.998355448574499,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":15.998355448574499,"endHours":16.9983554485745,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":16.9983554485745,"endHours":17.9983554485745,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":17.9983554485745,"endHours":18.9983554485745,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":18.9983554485745,"endHours":19.9983554485745,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":19.9983554485745,"endHours":20.9983554485745,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":20.9983554485745,"endHours":21.9983554485745,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":21.9983554485745,"endHours":22.9983554485745,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":22.9983554485745,"endHours":23.9983554485745,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":23.9983554485745,"endHours":24.9983554485745,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":24.9983554485745,"endHours":25.9983554485745,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":25.9983554485745,"endHours":26.9983554485745,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":26.9983554485745,"endHours":27.9983554485745,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":27.9983554485745,"endHours":28.9983554485745,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":28.9983554485745,"endHours":29.9983554485745,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":29.9983554485745,"endHours":30.9983554485745,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.590928111166967,"eotMinutes":3.6891821904695723,"ayanamsa":25.6463}},"calendars":{"vikram_samvat":2185,"vikram_samvatsara":"Plava","saka_samvat":2050,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1535,"malayalam_era":1304,"nanakshahi_year":659,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Caturthī · Vikram 2185 Plava · Śaka 2050 Sarvadhāri"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 18, 2128 CE · Perth, Australia · Vidhyamitra","description":"May 18, 2128 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 07:00, sūryāsta 17:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2128-05-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2128-05-18","sa":"https://sa.vidhyamitra.com/city/perth/2128-05-18","hi":"https://hi.vidhyamitra.com/city/perth/2128-05-18","x-default":"https://vidhyamitra.com/city/perth/2128-05-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:29:28.892Z","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":"2026-05-31T18:29:28.892Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:29:28.892Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}