{"id":"vidhyamitra:city-day:perth:1879-05-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1879-05-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1879-05-04","date_display":"May 4, 1879 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":1879,"month":5,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2407473.770833,"kali_year":4981,"ahargana":1819008.2708,"sun":{"sidereal_longitude":21.3374,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":171.5587,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.2212,"elapsed_within_tithi_degrees":6.2212},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.5587,"elapsed_within_degrees":11.5587},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.8961},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":1879,"month":5,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2407473.770833,"ahargana":1819008.2708,"kali_year":4981,"ayanamsa_lahiri":22.1674,"grahas":{"sun":{"sidereal_longitude":21.01825500000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":169.41965500000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false,"latitude":-4.2638},"mars":{"sidereal_longitude":313.51275499999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":0.7808549999999741,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":316.804255,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":57.766255,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":349.134955,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":280.1881,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":100.1881,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":1879,"month":5,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2407473.770833,"kali_year":4981,"ahargana":1819008.2708,"sun":{"sidereal_longitude":21.3374,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":171.5587,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.2212,"elapsed_within_tithi_degrees":6.2212},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.5587,"elapsed_within_degrees":11.5587},"yoga":{"number":15,"name":"Vajra","sum_longitude":192.8961},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.264,"elongation":150.221},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.264,"opposition_distance":29.779}},"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":"17:37","solarNoonLocal":"12:13","dayLengthHours":10.783138849344885,"dayLengthDisplay":"10 Hours 46 Mins 59 Secs","nightLengthDisplay":"13 Hours 13 Mins 01 Secs","moonriseLocal":"15:53","moonsetLocal":"04:21","rahuKala":{"name":"Rāhu Kāla","start":"16:16","end":"17:37","startHours":16.265336108203,"endHours":17.61322846437111,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:13","end":"13:34","startHours":12.221659039698668,"endHours":13.56955139586678,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:55","end":"16:16","startHours":14.91744375203489,"endHours":16.265336108203,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:42","startHours":9.346155346540034,"endHours":9.705593308184863,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:17","end":"07:34","startHours":7.279387067082263,"endHours":7.566937436398127,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:35","startHours":11.862221078053839,"endHours":12.581097001343498,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:24","end":"06:07","startHours":5.392337768446908,"endHours":6.111213691736568,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:56","end":"06:50","startHours":5.931494710914153,"endHours":6.8300896150262265,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:01","end":"14:44","startHours":14.018848847922817,"endHours":14.737724771212475,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:25","end":"17:49","startHours":17.413228464371112,"endHours":17.81322846437111,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:37","end":"18:04","startHours":17.61322846437111,"endHours":18.06252591642715,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:22","end":"19:07","startHours":17.36322846437111,"endHours":19.11322846437111,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:35","startHours":23.86222107805384,"endHours":24.581097001343498,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:50","end":"08:11","startHours":6.8300896150262265,"endHours":8.177981971194336,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:32","startHours":8.177981971194336,"endHours":9.525874327362448,"quality":"neutral"},{"name":"Labha","start":"09:32","end":"10:52","startHours":9.525874327362448,"endHours":10.873766683530558,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:13","startHours":10.873766683530558,"endHours":12.221659039698668,"quality":"auspicious"},{"name":"Kāla","start":"12:13","end":"13:34","startHours":12.221659039698668,"endHours":13.56955139586678,"quality":"inauspicious"},{"name":"Śubha","start":"13:34","end":"14:55","startHours":13.56955139586678,"endHours":14.91744375203489,"quality":"auspicious"},{"name":"Roga","start":"14:55","end":"16:16","startHours":14.91744375203489,"endHours":16.265336108203,"quality":"inauspicious"},{"name":"Udveg","start":"16:16","end":"17:37","startHours":16.265336108203,"endHours":17.61322846437111,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:37","end":"19:16","startHours":17.61322846437111,"endHours":19.265336108203,"quality":"auspicious"},{"name":"Roga","start":"19:16","end":"20:55","startHours":19.265336108203,"endHours":20.91744375203489,"quality":"inauspicious"},{"name":"Udveg","start":"20:55","end":"22:34","startHours":20.91744375203489,"endHours":22.56955139586678,"quality":"inauspicious"},{"name":"Chala","start":"22:34","end":"00:13","startHours":22.56955139586678,"endHours":24.221659039698668,"quality":"neutral"},{"name":"Labha","start":"00:13","end":"01:52","startHours":24.221659039698668,"endHours":25.873766683530558,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:32","startHours":25.873766683530558,"endHours":27.525874327362448,"quality":"auspicious"},{"name":"Kāla","start":"03:32","end":"05:11","startHours":27.525874327362448,"endHours":29.177981971194335,"quality":"inauspicious"},{"name":"Śubha","start":"05:11","end":"06:50","startHours":29.177981971194335,"endHours":30.830089615026225,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.8300896150262265,"endHours":7.8300896150262265,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.8300896150262265,"endHours":8.830089615026226,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.830089615026226,"endHours":9.830089615026226,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.830089615026226,"endHours":10.830089615026226,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.830089615026226,"endHours":11.830089615026226,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.830089615026226,"endHours":12.830089615026226,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.830089615026226,"endHours":13.830089615026226,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.830089615026226,"endHours":14.830089615026226,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.830089615026226,"endHours":15.830089615026226,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.830089615026226,"endHours":16.830089615026225,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.830089615026225,"endHours":17.830089615026225,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.830089615026225,"endHours":18.830089615026225,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.830089615026225,"endHours":19.830089615026225,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.830089615026225,"endHours":20.830089615026225,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.830089615026225,"endHours":21.830089615026225,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.830089615026225,"endHours":22.830089615026225,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.830089615026225,"endHours":23.830089615026225,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.830089615026225,"endHours":24.830089615026225,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.830089615026225,"endHours":25.830089615026225,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.830089615026225,"endHours":26.830089615026225,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.830089615026225,"endHours":27.830089615026225,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.830089615026225,"endHours":28.830089615026225,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.830089615026225,"endHours":29.830089615026225,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.830089615026225,"endHours":30.830089615026225,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":15.794864828033074,"eotMinutes":3.258457618079846,"ayanamsa":22.1674}},"calendars":{"vikram_samvat":1936,"vikram_samvatsara":"Nandana","saka_samvat":1801,"saka_samvatsara":"Pramāthi","bengali_samvat":1286,"malayalam_era":1055,"nanakshahi_year":410,"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 Trayodaśī · Vikram 1936 Nandana · Śaka 1801 Pramāthi"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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 4, 1879 CE · Perth, Australia · Vidhyamitra","description":"May 4, 1879 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 06:50, sūryāsta 17:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1879-05-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1879-05-04","sa":"https://sa.vidhyamitra.com/city/perth/1879-05-04","hi":"https://hi.vidhyamitra.com/city/perth/1879-05-04","x-default":"https://vidhyamitra.com/city/perth/1879-05-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:03:29.539Z","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":"2026-06-02T01:03:29.539Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:03:29.539Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}