{"id":"vidhyamitra:city-day:perth:-3136-02-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/-3136-02-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3136-02-27","date_display":"February 27, 3137 BCE","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":-3136,"month":2,"day":27,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":575690.770833,"kali_year":-34,"ahargana":-12774.7292,"sun":{"sidereal_longitude":11.3522,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":150.3845,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.0324,"elapsed_within_tithi_degrees":7.0324},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":150.3845,"elapsed_within_degrees":3.7179},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":161.7367},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":-3136,"month":2,"day":27,"hour":6,"minute":30,"calendar":"julian"},"julian_day":575690.770833,"ahargana":-12774.7292,"kali_year":-34,"ayanamsa_lahiri":-47.8914,"grahas":{"sun":{"sidereal_longitude":11.3522,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":150.3845,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false,"latitude":1.0508},"mars":{"sidereal_longitude":106.6118,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":346.6703,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":19.7287,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":28.4197,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":291.1908,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":136.8666,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":316.8666,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"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":-3136,"month":2,"day":27,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":575690.770833,"kali_year":-34,"ahargana":-12774.7292,"sun":{"sidereal_longitude":11.3522,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":150.3845,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":139.0324,"elapsed_within_tithi_degrees":7.0324},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":150.3845,"elapsed_within_degrees":3.7179},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":161.7367},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.051,"elongation":139.032},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.051,"opposition_distance":40.968}},"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":"05:51","sunsetLocal":"19:09","solarNoonLocal":"12:30","dayLengthHours":13.30227318194612,"dayLengthDisplay":"13 Hours 18 Mins 08 Secs","nightLengthDisplay":"10 Hours 41 Mins 52 Secs","moonriseLocal":"16:44","moonsetLocal":"02:48","rahuKala":{"name":"Rāhu Kāla","start":"10:50","end":"12:30","startHours":10.836399711512144,"endHours":12.49918385925541,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:49","end":"17:29","startHours":15.82475215474194,"endHours":17.487536302485204,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:31","end":"09:10","startHours":7.510831416025614,"endHours":9.17361556376888,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:24","startHours":8.951911010736444,"endHours":9.395320116801315,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:45","startHours":6.4023086508634375,"endHours":6.757035935715334,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.055774753190539,"endHours":12.942592965320282,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:04","end":"04:58","startHours":4.074410844022867,"endHours":4.961229056152608,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:44","end":"05:51","startHours":4.7395245031201725,"endHours":5.848047268282349,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:36","startHours":14.716229389579762,"endHours":15.603047601709504,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:57","end":"19:21","startHours":18.95032045022847,"endHours":19.35032045022847,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:09","end":"19:42","startHours":19.15032045022847,"endHours":19.70458183280956,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:54","end":"20:39","startHours":18.90032045022847,"endHours":20.65032045022847,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.05577475319054,"endHours":24.94259296532028,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:51","end":"07:31","startHours":5.848047268282349,"endHours":7.510831416025614,"quality":"neutral"},{"name":"Labha","start":"07:31","end":"09:10","startHours":7.510831416025614,"endHours":9.17361556376888,"quality":"auspicious"},{"name":"Amṛta","start":"09:10","end":"10:50","startHours":9.17361556376888,"endHours":10.836399711512144,"quality":"auspicious"},{"name":"Kāla","start":"10:50","end":"12:30","startHours":10.836399711512144,"endHours":12.49918385925541,"quality":"inauspicious"},{"name":"Śubha","start":"12:30","end":"14:10","startHours":12.49918385925541,"endHours":14.161968006998674,"quality":"auspicious"},{"name":"Roga","start":"14:10","end":"15:49","startHours":14.161968006998674,"endHours":15.82475215474194,"quality":"inauspicious"},{"name":"Udveg","start":"15:49","end":"17:29","startHours":15.82475215474194,"endHours":17.487536302485204,"quality":"inauspicious"},{"name":"Chala","start":"17:29","end":"19:09","startHours":17.487536302485204,"endHours":19.15032045022847,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:09","end":"20:29","startHours":19.15032045022847,"endHours":20.487536302485204,"quality":"inauspicious"},{"name":"Udveg","start":"20:29","end":"21:49","startHours":20.487536302485204,"endHours":21.82475215474194,"quality":"inauspicious"},{"name":"Chala","start":"21:49","end":"23:10","startHours":21.82475215474194,"endHours":23.161968006998677,"quality":"neutral"},{"name":"Labha","start":"23:10","end":"00:30","startHours":23.161968006998677,"endHours":24.49918385925541,"quality":"auspicious"},{"name":"Amṛta","start":"00:30","end":"01:50","startHours":24.49918385925541,"endHours":25.836399711512144,"quality":"auspicious"},{"name":"Kāla","start":"01:50","end":"03:10","startHours":25.836399711512144,"endHours":27.17361556376888,"quality":"inauspicious"},{"name":"Śubha","start":"03:10","end":"04:31","startHours":27.17361556376888,"endHours":28.510831416025617,"quality":"auspicious"},{"name":"Roga","start":"04:31","end":"05:51","startHours":28.510831416025617,"endHours":29.84804726828235,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:51","end":"06:51","startHours":5.848047268282349,"endHours":6.848047268282349,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:51","end":"07:51","startHours":6.848047268282349,"endHours":7.848047268282349,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:51","end":"08:51","startHours":7.848047268282349,"endHours":8.84804726828235,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:51","end":"09:51","startHours":8.84804726828235,"endHours":9.84804726828235,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:51","end":"10:51","startHours":9.84804726828235,"endHours":10.84804726828235,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:51","end":"11:51","startHours":10.84804726828235,"endHours":11.84804726828235,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:51","end":"12:51","startHours":11.84804726828235,"endHours":12.84804726828235,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:51","end":"13:51","startHours":12.84804726828235,"endHours":13.84804726828235,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:51","end":"14:51","startHours":13.84804726828235,"endHours":14.84804726828235,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:51","end":"15:51","startHours":14.84804726828235,"endHours":15.84804726828235,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:51","end":"16:51","startHours":15.84804726828235,"endHours":16.84804726828235,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:51","end":"17:51","startHours":16.84804726828235,"endHours":17.84804726828235,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:51","end":"18:51","startHours":17.84804726828235,"endHours":18.84804726828235,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:51","end":"19:51","startHours":18.84804726828235,"endHours":19.84804726828235,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:51","end":"20:51","startHours":19.84804726828235,"endHours":20.84804726828235,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:51","end":"21:51","startHours":20.84804726828235,"endHours":21.84804726828235,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:51","end":"22:51","startHours":21.84804726828235,"endHours":22.84804726828235,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:51","end":"23:51","startHours":22.84804726828235,"endHours":23.84804726828235,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:51","end":"00:51","startHours":23.84804726828235,"endHours":24.84804726828235,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:51","end":"01:51","startHours":24.84804726828235,"endHours":25.84804726828235,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:51","end":"02:51","startHours":25.84804726828235,"endHours":26.84804726828235,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:51","end":"03:51","startHours":26.84804726828235,"endHours":27.84804726828235,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:51","end":"04:51","startHours":27.84804726828235,"endHours":28.84804726828235,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:51","end":"05:51","startHours":28.84804726828235,"endHours":29.84804726828235,"planetary_lord":"Mars"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"undefined (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.697692490591374,"eotMinutes":-13.393031555324574,"ayanamsa":-47.8914}},"calendars":{"vikram_samvat":-3079,"saka_samvat":-3214,"bengali_samvat":-3729,"malayalam_era":-3960,"nanakshahi_year":-4605,"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 Dvādaśī · Vikram -3079 undefined · Śaka -3214 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true,"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 February 27, 3137 BCE · Perth, Australia · Vidhyamitra","description":"February 27, 3137 BCE for Perth, Australia: Śukla Dvādaśī, sūryodaya 05:51, sūryāsta 19:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/-3136-02-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/-3136-02-27","sa":"https://sa.vidhyamitra.com/city/perth/-3136-02-27","hi":"https://hi.vidhyamitra.com/city/perth/-3136-02-27","x-default":"https://vidhyamitra.com/city/perth/-3136-02-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:11:54.470Z","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":"2026-06-01T07:11:54.470Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:11:54.470Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}