{"id":"vidhyamitra:city-day:perth:1872-05-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1872-05-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1872-05-11","date_display":"May 11, 1872 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":1872,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404924.770833,"kali_year":4974,"ahargana":1816459.2708,"sun":{"sidereal_longitude":28.8448,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":71.1176,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.2728,"elapsed_within_tithi_degrees":6.2728},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.1176,"elapsed_within_degrees":4.4509},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":99.9624},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1872,"month":5,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2404924.770833,"ahargana":1816459.2708,"kali_year":4974,"ayanamsa_lahiri":22.07,"grahas":{"sun":{"sidereal_longitude":28.552845999999988,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":67.91564599999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":1.2295},"mars":{"sidereal_longitude":32.00584600000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":9.244245999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":93.60344600000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"venus":{"sidereal_longitude":12.506546000000014,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":270.208446,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":55.2464,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":235.2464,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1872,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2404924.770833,"kali_year":4974,"ahargana":1816459.2708,"sun":{"sidereal_longitude":28.8448,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":71.1176,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.2728,"elapsed_within_tithi_degrees":6.2728},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.1176,"elapsed_within_degrees":4.4509},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":99.9624},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.229,"elongation":42.273},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.229,"opposition_distance":137.727}},"eclipse_window_40days":[{"offset_days":12,"type":"lunar","occurs":true,"moon_latitude":1.128,"opposition_distance":0.241}]},"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":"06:55","sunsetLocal":"17:31","solarNoonLocal":"12:13","dayLengthHours":10.590210304582923,"dayLengthDisplay":"10 Hours 35 Mins 25 Secs","nightLengthDisplay":"13 Hours 24 Mins 35 Secs","moonriseLocal":"09:50","moonsetLocal":"19:51","rahuKala":{"name":"Rāhu Kāla","start":"09:34","end":"10:53","startHours":9.56654759612246,"endHours":10.890323884195325,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:32","end":"14:52","startHours":13.537876460341057,"endHours":14.86165274841392,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:55","end":"08:15","startHours":6.9189950199767285,"endHours":8.242771308049594,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:23","end":"09:45","startHours":9.390044091046077,"endHours":9.74305110119884,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:39","startHours":7.360253782667684,"endHours":7.642659390789895,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.861093162115425,"endHours":12.567107182420953,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:30","end":"06:13","startHours":5.506966979365672,"endHours":6.2129809996712,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:02","end":"06:55","startHours":6.036477494594818,"endHours":6.9189950199767285,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:41","startHours":13.97913522303201,"endHours":14.685149243337538,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.309205324559652,"endHours":17.70920532455965,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:57","startHours":17.50920532455965,"endHours":17.950464087250605,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.25920532455965,"endHours":19.00920532455965,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.861093162115424,"endHours":24.567107182420955,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:55","end":"08:15","startHours":6.9189950199767285,"endHours":8.242771308049594,"quality":"inauspicious"},{"name":"Śubha","start":"08:15","end":"09:34","startHours":8.242771308049594,"endHours":9.56654759612246,"quality":"auspicious"},{"name":"Roga","start":"09:34","end":"10:53","startHours":9.56654759612246,"endHours":10.890323884195325,"quality":"inauspicious"},{"name":"Udveg","start":"10:53","end":"12:13","startHours":10.890323884195325,"endHours":12.21410017226819,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:32","startHours":12.21410017226819,"endHours":13.537876460341057,"quality":"neutral"},{"name":"Labha","start":"13:32","end":"14:52","startHours":13.537876460341057,"endHours":14.86165274841392,"quality":"auspicious"},{"name":"Amṛta","start":"14:52","end":"16:11","startHours":14.86165274841392,"endHours":16.185429036486788,"quality":"auspicious"},{"name":"Kāla","start":"16:11","end":"17:31","startHours":16.185429036486788,"endHours":17.50920532455965,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:31","end":"19:11","startHours":17.50920532455965,"endHours":19.185429036486788,"quality":"auspicious"},{"name":"Amṛta","start":"19:11","end":"20:52","startHours":19.185429036486788,"endHours":20.86165274841392,"quality":"auspicious"},{"name":"Kāla","start":"20:52","end":"22:32","startHours":20.86165274841392,"endHours":22.537876460341057,"quality":"inauspicious"},{"name":"Śubha","start":"22:32","end":"00:13","startHours":22.537876460341057,"endHours":24.21410017226819,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:53","startHours":24.21410017226819,"endHours":25.890323884195325,"quality":"inauspicious"},{"name":"Udveg","start":"01:53","end":"03:34","startHours":25.890323884195325,"endHours":27.56654759612246,"quality":"inauspicious"},{"name":"Chala","start":"03:34","end":"05:15","startHours":27.56654759612246,"endHours":29.242771308049594,"quality":"neutral"},{"name":"Labha","start":"05:15","end":"06:55","startHours":29.242771308049594,"endHours":30.918995019976727,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.9189950199767285,"endHours":7.9189950199767285,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.9189950199767285,"endHours":8.918995019976728,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.918995019976728,"endHours":9.918995019976728,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.918995019976728,"endHours":10.918995019976728,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.918995019976728,"endHours":11.918995019976728,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.918995019976728,"endHours":12.918995019976728,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.918995019976728,"endHours":13.918995019976728,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.918995019976728,"endHours":14.918995019976728,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.918995019976728,"endHours":15.918995019976728,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.918995019976728,"endHours":16.918995019976727,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.918995019976727,"endHours":17.918995019976727,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.918995019976727,"endHours":18.918995019976727,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.918995019976727,"endHours":19.918995019976727,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.918995019976727,"endHours":20.918995019976727,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.918995019976727,"endHours":21.918995019976727,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.918995019976727,"endHours":22.918995019976727,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.918995019976727,"endHours":23.918995019976727,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.918995019976727,"endHours":24.918995019976727,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.918995019976727,"endHours":25.918995019976727,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.918995019976727,"endHours":26.918995019976727,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.918995019976727,"endHours":27.918995019976727,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.918995019976727,"endHours":28.918995019976727,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.918995019976727,"endHours":29.918995019976727,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.918995019976727,"endHours":30.918995019976727,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Kāladaṇḍa","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":17.905132781184026,"eotMinutes":3.71198966390865,"ayanamsa":22.07}},"calendars":{"vikram_samvat":1929,"vikram_samvatsara":"Pārthiva","saka_samvat":1794,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1279,"malayalam_era":1048,"nanakshahi_year":403,"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 1929 Pārthiva · Śaka 1794 Aṅgirasa"},"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 11, 1872 CE · Perth, Australia · Vidhyamitra","description":"May 11, 1872 CE for Perth, Australia: Śukla Caturthī, sūryodaya 06:55, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1872-05-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1872-05-11","sa":"https://sa.vidhyamitra.com/city/perth/1872-05-11","hi":"https://hi.vidhyamitra.com/city/perth/1872-05-11","x-default":"https://vidhyamitra.com/city/perth/1872-05-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:19:41.460Z","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":"2026-06-02T08:19:41.460Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:19:41.460Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}