{"id":"vidhyamitra:city-day:perth:2037-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2037-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2037-01-27","date_display":"January 27, 2037 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":2037,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465085.770833,"kali_year":5138,"ahargana":1876620.2708,"sun":{"sidereal_longitude":282.958,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":44.1806,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.2226,"elapsed_within_tithi_degrees":1.2226},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":44.1806,"elapsed_within_degrees":4.1806},"yoga":{"number":25,"name":"Brahma","sum_longitude":327.1385},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":2037,"month":1,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465085.770833,"ahargana":1876620.2708,"kali_year":5138,"ayanamsa_lahiri":24.3709,"grahas":{"sun":{"sidereal_longitude":283.06365299999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"moon":{"sidereal_longitude":41.920052999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false,"latitude":-4.0245},"mars":{"sidereal_longitude":241.238653,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":261.42855299999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":51.21865300000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":269.533453,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":126.27235300000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":107.6271,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":287.6271,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2037,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465085.770833,"kali_year":5138,"ahargana":1876620.2708,"sun":{"sidereal_longitude":282.958,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":44.1806,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":121.2226,"elapsed_within_tithi_degrees":1.2226},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":44.1806,"elapsed_within_degrees":4.1806},"yoga":{"number":25,"name":"Brahma","sum_longitude":327.1385},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.025,"elongation":121.223},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.025,"opposition_distance":58.777}},"eclipse_window_40days":[{"offset_days":-11,"type":"solar","occurs":true,"moon_latitude":1.49,"elongation":2.819},{"offset_days":19,"type":"solar","occurs":true,"moon_latitude":-1.163,"elongation":0.724}]},"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":"05:37","sunsetLocal":"19:21","solarNoonLocal":"12:29","dayLengthHours":13.738804615784712,"dayLengthDisplay":"13 Hours 44 Mins 20 Secs","nightLengthDisplay":"10 Hours 15 Mins 40 Secs","moonriseLocal":"15:18","moonsetLocal":"01:31","rahuKala":{"name":"Rāhu Kāla","start":"15:55","end":"17:38","startHours":15.923414579060829,"endHours":17.64076515603392,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:03","end":"10:46","startHours":9.054012271168473,"endHours":10.77136284814156,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:29","end":"14:12","startHours":12.48871342511465,"endHours":14.20606400208774,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:17","startHours":8.825032194238727,"endHours":9.282992348098219,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:12","end":"06:33","startHours":6.191761309546658,"endHours":6.55812943263425,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:57","startHours":12.030753271255161,"endHours":12.946673578974142,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:47","end":"04:42","startHours":3.787470501784333,"endHours":4.703390809503314,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:28","end":"05:37","startHours":4.474410732573569,"endHours":5.619311117222295,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.778514194412104,"endHours":15.694434502131084,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:09","end":"19:33","startHours":19.15811573300701,"endHours":19.558115733007007,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:21","end":"19:56","startHours":19.358115733007008,"endHours":19.930565925331372,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:06","end":"20:51","startHours":19.108115733007008,"endHours":20.858115733007008,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:57","startHours":24.030753271255165,"endHours":24.946673578974142,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:37","end":"07:20","startHours":5.619311117222295,"endHours":7.336661694195383,"quality":"inauspicious"},{"name":"Udveg","start":"07:20","end":"09:03","startHours":7.336661694195383,"endHours":9.054012271168473,"quality":"inauspicious"},{"name":"Chala","start":"09:03","end":"10:46","startHours":9.054012271168473,"endHours":10.77136284814156,"quality":"neutral"},{"name":"Labha","start":"10:46","end":"12:29","startHours":10.77136284814156,"endHours":12.48871342511465,"quality":"auspicious"},{"name":"Amṛta","start":"12:29","end":"14:12","startHours":12.48871342511465,"endHours":14.20606400208774,"quality":"auspicious"},{"name":"Kāla","start":"14:12","end":"15:55","startHours":14.20606400208774,"endHours":15.923414579060829,"quality":"inauspicious"},{"name":"Śubha","start":"15:55","end":"17:38","startHours":15.923414579060829,"endHours":17.64076515603392,"quality":"auspicious"},{"name":"Roga","start":"17:38","end":"19:21","startHours":17.64076515603392,"endHours":19.358115733007008,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:21","end":"20:38","startHours":19.358115733007008,"endHours":20.64076515603392,"quality":"inauspicious"},{"name":"Śubha","start":"20:38","end":"21:55","startHours":20.64076515603392,"endHours":21.92341457906083,"quality":"auspicious"},{"name":"Roga","start":"21:55","end":"23:12","startHours":21.92341457906083,"endHours":23.20606400208774,"quality":"inauspicious"},{"name":"Udveg","start":"23:12","end":"00:29","startHours":23.20606400208774,"endHours":24.488713425114653,"quality":"inauspicious"},{"name":"Chala","start":"00:29","end":"01:46","startHours":24.488713425114653,"endHours":25.771362848141564,"quality":"neutral"},{"name":"Labha","start":"01:46","end":"03:03","startHours":25.771362848141564,"endHours":27.054012271168475,"quality":"auspicious"},{"name":"Amṛta","start":"03:03","end":"04:20","startHours":27.054012271168475,"endHours":28.336661694195385,"quality":"auspicious"},{"name":"Kāla","start":"04:20","end":"05:37","startHours":28.336661694195385,"endHours":29.619311117222296,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:37","end":"06:37","startHours":5.619311117222295,"endHours":6.619311117222295,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:37","end":"07:37","startHours":6.619311117222295,"endHours":7.619311117222295,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:37","end":"08:37","startHours":7.619311117222295,"endHours":8.619311117222296,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:37","end":"09:37","startHours":8.619311117222296,"endHours":9.619311117222296,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:37","end":"10:37","startHours":9.619311117222296,"endHours":10.619311117222296,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:37","end":"11:37","startHours":10.619311117222296,"endHours":11.619311117222296,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:37","end":"12:37","startHours":11.619311117222296,"endHours":12.619311117222296,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:37","end":"13:37","startHours":12.619311117222296,"endHours":13.619311117222296,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:37","end":"14:37","startHours":13.619311117222296,"endHours":14.619311117222296,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:37","end":"15:37","startHours":14.619311117222296,"endHours":15.619311117222296,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:37","end":"16:37","startHours":15.619311117222296,"endHours":16.619311117222296,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:37","end":"17:37","startHours":16.619311117222296,"endHours":17.619311117222296,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:37","end":"18:37","startHours":17.619311117222296,"endHours":18.619311117222296,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:37","end":"19:37","startHours":18.619311117222296,"endHours":19.619311117222296,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:37","end":"20:37","startHours":19.619311117222296,"endHours":20.619311117222296,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:37","end":"21:37","startHours":20.619311117222296,"endHours":21.619311117222296,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:37","end":"22:37","startHours":21.619311117222296,"endHours":22.619311117222296,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:37","end":"23:37","startHours":22.619311117222296,"endHours":23.619311117222296,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:37","end":"00:37","startHours":23.619311117222296,"endHours":24.619311117222296,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:37","end":"01:37","startHours":24.619311117222296,"endHours":25.619311117222296,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:37","end":"02:37","startHours":25.619311117222296,"endHours":26.619311117222296,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:37","end":"03:37","startHours":26.619311117222296,"endHours":27.619311117222296,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:37","end":"04:37","startHours":27.619311117222296,"endHours":28.619311117222296,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:37","end":"05:37","startHours":28.619311117222296,"endHours":29.619311117222296,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-18.410247498287507,"eotMinutes":-12.76480550687915,"ayanamsa":24.3709}},"calendars":{"vikram_samvat":2094,"vikram_samvatsara":"Pramoda","saka_samvat":1959,"saka_samvatsara":"Piṅgala","bengali_samvat":1444,"malayalam_era":1213,"nanakshahi_year":568,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ekādaśī · Vikram 2094 Pramoda · Śaka 1959 Piṅgala"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2},{"id":"jaya-ekadashi","name":"Jayā Ekādaśī","name_sanskrit":"जया एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Removes pretatva (ghost-state); grants victory.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"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 January 27, 2037 CE · Perth, Australia · Vidhyamitra","description":"January 27, 2037 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:37, sūryāsta 19:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2037-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2037-01-27","sa":"https://sa.vidhyamitra.com/city/perth/2037-01-27","hi":"https://hi.vidhyamitra.com/city/perth/2037-01-27","x-default":"https://vidhyamitra.com/city/perth/2037-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:07:52.166Z","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":"2026-05-15T13:07:52.166Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:07:52.166Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}