{"id":"vidhyamitra:city-day:perth:2138-05-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2138-05-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2138-05-12","date_display":"May 12, 2138 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":2138,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2502079.770833,"kali_year":5240,"ahargana":1913614.2708,"sun":{"sidereal_longitude":25.1685,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":61.5753,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.4068,"elapsed_within_tithi_degrees":0.4068},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.5753,"elapsed_within_degrees":8.2419},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.7437},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2138,"month":5,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2502079.770833,"ahargana":1913614.2708,"kali_year":5240,"ayanamsa_lahiri":25.7858,"grahas":{"sun":{"sidereal_longitude":25.48031100000003,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":59.710811000000035,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":4.1081},"mars":{"sidereal_longitude":128.47781099999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":22.55701099999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":250.332811,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"venus":{"sidereal_longitude":60.826010999999994,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":278.910211,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":307.507,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":127.507,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2138,"month":5,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2502079.770833,"kali_year":5240,"ahargana":1913614.2708,"sun":{"sidereal_longitude":25.1685,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":61.5753,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.4068,"elapsed_within_tithi_degrees":0.4068},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.5753,"elapsed_within_degrees":8.2419},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.7437},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.108,"elongation":36.407},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.108,"opposition_distance":143.593}},"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":"06:56","sunsetLocal":"17:30","solarNoonLocal":"12:13","dayLengthHours":10.574492580895352,"dayLengthDisplay":"10 Hours 34 Mins 28 Secs","nightLengthDisplay":"13 Hours 25 Mins 32 Secs","moonriseLocal":"09:29","moonsetLocal":"19:30","rahuKala":{"name":"Rāhu Kāla","start":"08:15","end":"09:34","startHours":8.248238954169768,"endHours":9.570050526781685,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:54","end":"12:13","startHours":10.891862099393606,"endHours":12.213673672005523,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:32","end":"14:51","startHours":13.535485244617444,"endHours":14.857296817229361,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:45","startHours":9.393808983766764,"endHours":9.746292069796608,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:39","startHours":7.367031239095154,"endHours":7.649017707919031,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.861190585975677,"endHours":12.566156758035369,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:31","end":"06:13","startHours":5.516495037438467,"endHours":6.221461209498158,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:03","end":"06:56","startHours":6.045219666483235,"endHours":6.926427381557848,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:41","startHours":13.976089102154749,"endHours":14.681055274214438,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:18","end":"17:42","startHours":17.3009199624532,"endHours":17.7009199624532,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:30","end":"17:56","startHours":17.5009199624532,"endHours":17.941523819990508,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:15","end":"19:00","startHours":17.2509199624532,"endHours":19.0009199624532,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.861190585975677,"endHours":24.56615675803537,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:56","end":"08:15","startHours":6.926427381557848,"endHours":8.248238954169768,"quality":"auspicious"},{"name":"Kāla","start":"08:15","end":"09:34","startHours":8.248238954169768,"endHours":9.570050526781685,"quality":"inauspicious"},{"name":"Śubha","start":"09:34","end":"10:54","startHours":9.570050526781685,"endHours":10.891862099393606,"quality":"auspicious"},{"name":"Roga","start":"10:54","end":"12:13","startHours":10.891862099393606,"endHours":12.213673672005523,"quality":"inauspicious"},{"name":"Udveg","start":"12:13","end":"13:32","startHours":12.213673672005523,"endHours":13.535485244617444,"quality":"inauspicious"},{"name":"Chala","start":"13:32","end":"14:51","startHours":13.535485244617444,"endHours":14.857296817229361,"quality":"neutral"},{"name":"Labha","start":"14:51","end":"16:11","startHours":14.857296817229361,"endHours":16.179108389841282,"quality":"auspicious"},{"name":"Amṛta","start":"16:11","end":"17:30","startHours":16.179108389841282,"endHours":17.5009199624532,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:30","end":"19:11","startHours":17.5009199624532,"endHours":19.179108389841282,"quality":"neutral"},{"name":"Labha","start":"19:11","end":"20:51","startHours":19.179108389841282,"endHours":20.85729681722936,"quality":"auspicious"},{"name":"Amṛta","start":"20:51","end":"22:32","startHours":20.85729681722936,"endHours":22.53548524461744,"quality":"auspicious"},{"name":"Kāla","start":"22:32","end":"00:13","startHours":22.53548524461744,"endHours":24.213673672005523,"quality":"inauspicious"},{"name":"Śubha","start":"00:13","end":"01:54","startHours":24.213673672005523,"endHours":25.891862099393606,"quality":"auspicious"},{"name":"Roga","start":"01:54","end":"03:34","startHours":25.891862099393606,"endHours":27.570050526781685,"quality":"inauspicious"},{"name":"Udveg","start":"03:34","end":"05:15","startHours":27.570050526781685,"endHours":29.248238954169764,"quality":"inauspicious"},{"name":"Chala","start":"05:15","end":"06:56","startHours":29.248238954169764,"endHours":30.926427381557847,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:56","end":"07:56","startHours":6.926427381557848,"endHours":7.926427381557848,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:56","end":"08:56","startHours":7.926427381557848,"endHours":8.926427381557847,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:56","end":"09:56","startHours":8.926427381557847,"endHours":9.926427381557847,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:56","end":"10:56","startHours":9.926427381557847,"endHours":10.926427381557847,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:56","end":"11:56","startHours":10.926427381557847,"endHours":11.926427381557847,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:56","end":"12:56","startHours":11.926427381557847,"endHours":12.926427381557847,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:56","end":"13:56","startHours":12.926427381557847,"endHours":13.926427381557847,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:56","end":"14:56","startHours":13.926427381557847,"endHours":14.926427381557847,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:56","end":"15:56","startHours":14.926427381557847,"endHours":15.926427381557847,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:56","end":"16:56","startHours":15.926427381557847,"endHours":16.926427381557847,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:56","end":"17:56","startHours":16.926427381557847,"endHours":17.926427381557847,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:56","end":"18:56","startHours":17.926427381557847,"endHours":18.926427381557847,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:56","end":"19:56","startHours":18.926427381557847,"endHours":19.926427381557847,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:56","end":"20:56","startHours":19.926427381557847,"endHours":20.926427381557847,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:56","end":"21:56","startHours":20.926427381557847,"endHours":21.926427381557847,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:56","end":"22:56","startHours":21.926427381557847,"endHours":22.926427381557847,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:56","end":"23:56","startHours":22.926427381557847,"endHours":23.926427381557847,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:56","end":"00:56","startHours":23.926427381557847,"endHours":24.926427381557847,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:56","end":"01:56","startHours":24.926427381557847,"endHours":25.926427381557847,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:56","end":"02:56","startHours":25.926427381557847,"endHours":26.926427381557847,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:56","end":"03:56","startHours":26.926427381557847,"endHours":27.926427381557847,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:56","end":"04:56","startHours":27.926427381557847,"endHours":28.926427381557847,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:56","end":"05:56","startHours":28.926427381557847,"endHours":29.926427381557847,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:56","end":"06:56","startHours":29.926427381557847,"endHours":30.926427381557847,"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","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":18.074620633894888,"eotMinutes":3.7375796796685163,"ayanamsa":25.7858}},"calendars":{"vikram_samvat":2195,"vikram_samvatsara":"Virodhakṛt","saka_samvat":2060,"saka_samvatsara":"Vilambī","bengali_samvat":1545,"malayalam_era":1314,"nanakshahi_year":669,"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 Caturthī · Vikram 2195 Virodhakṛt · Śaka 2060 Vilambī"},"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":"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 12, 2138 CE · Perth, Australia · Vidhyamitra","description":"May 12, 2138 CE for Perth, Australia: Śukla Caturthī, sūryodaya 06:56, sūryāsta 17:30.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2138-05-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2138-05-12","sa":"https://sa.vidhyamitra.com/city/perth/2138-05-12","hi":"https://hi.vidhyamitra.com/city/perth/2138-05-12","x-default":"https://vidhyamitra.com/city/perth/2138-05-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:27:52.170Z","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":"2026-06-01T03:27:52.170Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:27:52.170Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}