{"id":"vidhyamitra:city-day:melbourne:2011-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/melbourne/2011-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-18","date_display":"January 18, 2011 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":2011,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455579.770833,"kali_year":5112,"ahargana":1867114.2708,"sun":{"sidereal_longitude":273.453,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":68.6849,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.2319,"elapsed_within_tithi_degrees":11.2319},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.6849,"elapsed_within_degrees":2.0182},"yoga":{"number":26,"name":"Indra","sum_longitude":342.1379},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":2011,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455579.770833,"ahargana":1867114.2708,"kali_year":5112,"ayanamsa_lahiri":24.0073,"grahas":{"sun":{"sidereal_longitude":273.56945199999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":69.16105199999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":0.2052},"mars":{"sidereal_longitude":277.490452,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":251.44805199999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":335.213252,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":226.75515199999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":172.90975200000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":251.3007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":71.3007,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"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":2011,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455579.770833,"kali_year":5112,"ahargana":1867114.2708,"sun":{"sidereal_longitude":273.453,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":68.6849,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":155.2319,"elapsed_within_tithi_degrees":11.2319},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.6849,"elapsed_within_degrees":2.0182},"yoga":{"number":26,"name":"Indra","sum_longitude":342.1379},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.205,"elongation":155.232},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.205,"opposition_distance":24.768}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":0.37,"elongation":2.307}]},"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"sunriseLocal":"05:18","sunsetLocal":"19:43","solarNoonLocal":"12:30","dayLengthHours":14.424247559927156,"dayLengthDisplay":"14 Hours 25 Mins 27 Secs","nightLengthDisplay":"9 Hours 34 Mins 33 Secs","moonriseLocal":"18:08","moonsetLocal":"03:38","rahuKala":{"name":"Rāhu Kāla","start":"16:07","end":"17:55","startHours":16.11434238300995,"endHours":17.917373328000846,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:54","end":"10:42","startHours":8.902218603046371,"endHours":10.705249548037266,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:30","end":"14:19","startHours":12.50828049302816,"endHours":14.311311438019054,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:09","startHours":8.661814477047585,"endHours":9.142622729045158,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:17","startHours":5.897167028061547,"endHours":6.281813629659605,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:59","startHours":12.027472241030589,"endHours":12.989088745025734,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:22","end":"04:20","startHours":3.372923705074295,"endHours":4.334540209069439,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:18","startHours":4.094136083070652,"endHours":5.296156713064582,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:55","end":"15:52","startHours":14.91232175301602,"endHours":15.873938257011163,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:31","end":"19:55","startHours":19.52040427299174,"endHours":19.92040427299174,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:43","end":"20:19","startHours":19.72040427299174,"endHours":20.321414587988706,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:28","end":"21:13","startHours":19.47040427299174,"endHours":21.22040427299174,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:59","startHours":24.027472241030587,"endHours":24.989088745025732,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:18","end":"07:06","startHours":5.296156713064582,"endHours":7.099187658055477,"quality":"inauspicious"},{"name":"Udveg","start":"07:06","end":"08:54","startHours":7.099187658055477,"endHours":8.902218603046371,"quality":"inauspicious"},{"name":"Chala","start":"08:54","end":"10:42","startHours":8.902218603046371,"endHours":10.705249548037266,"quality":"neutral"},{"name":"Labha","start":"10:42","end":"12:30","startHours":10.705249548037266,"endHours":12.50828049302816,"quality":"auspicious"},{"name":"Amṛta","start":"12:30","end":"14:19","startHours":12.50828049302816,"endHours":14.311311438019054,"quality":"auspicious"},{"name":"Kāla","start":"14:19","end":"16:07","startHours":14.311311438019054,"endHours":16.11434238300995,"quality":"inauspicious"},{"name":"Śubha","start":"16:07","end":"17:55","startHours":16.11434238300995,"endHours":17.917373328000846,"quality":"auspicious"},{"name":"Roga","start":"17:55","end":"19:43","startHours":17.917373328000846,"endHours":19.72040427299174,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:43","end":"20:55","startHours":19.72040427299174,"endHours":20.917373328000846,"quality":"inauspicious"},{"name":"Śubha","start":"20:55","end":"22:07","startHours":20.917373328000846,"endHours":22.11434238300995,"quality":"auspicious"},{"name":"Roga","start":"22:07","end":"23:19","startHours":22.11434238300995,"endHours":23.311311438019057,"quality":"inauspicious"},{"name":"Udveg","start":"23:19","end":"00:30","startHours":23.311311438019057,"endHours":24.50828049302816,"quality":"inauspicious"},{"name":"Chala","start":"00:30","end":"01:42","startHours":24.50828049302816,"endHours":25.705249548037266,"quality":"neutral"},{"name":"Labha","start":"01:42","end":"02:54","startHours":25.705249548037266,"endHours":26.90221860304637,"quality":"auspicious"},{"name":"Amṛta","start":"02:54","end":"04:06","startHours":26.90221860304637,"endHours":28.099187658055477,"quality":"auspicious"},{"name":"Kāla","start":"04:06","end":"05:18","startHours":28.099187658055477,"endHours":29.296156713064583,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:18","end":"06:18","startHours":5.296156713064582,"endHours":6.296156713064582,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:18","end":"07:18","startHours":6.296156713064582,"endHours":7.296156713064582,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:18","end":"08:18","startHours":7.296156713064582,"endHours":8.296156713064583,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:18","end":"09:18","startHours":8.296156713064583,"endHours":9.296156713064583,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:18","end":"10:18","startHours":9.296156713064583,"endHours":10.296156713064583,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:18","end":"11:18","startHours":10.296156713064583,"endHours":11.296156713064583,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:18","end":"12:18","startHours":11.296156713064583,"endHours":12.296156713064583,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:18","end":"13:18","startHours":12.296156713064583,"endHours":13.296156713064583,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:18","end":"14:18","startHours":13.296156713064583,"endHours":14.296156713064583,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:18","end":"15:18","startHours":14.296156713064583,"endHours":15.296156713064583,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:18","end":"16:18","startHours":15.296156713064583,"endHours":16.296156713064583,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:18","end":"17:18","startHours":16.296156713064583,"endHours":17.296156713064583,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:18","end":"18:18","startHours":17.296156713064583,"endHours":18.296156713064583,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:18","end":"19:18","startHours":18.296156713064583,"endHours":19.296156713064583,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:18","end":"20:18","startHours":19.296156713064583,"endHours":20.296156713064583,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:18","end":"21:18","startHours":20.296156713064583,"endHours":21.296156713064583,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:18","end":"22:18","startHours":21.296156713064583,"endHours":22.296156713064583,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:18","end":"23:18","startHours":22.296156713064583,"endHours":23.296156713064583,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:18","end":"00:18","startHours":23.296156713064583,"endHours":24.296156713064583,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:18","end":"01:18","startHours":24.296156713064583,"endHours":25.296156713064583,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:18","end":"02:18","startHours":25.296156713064583,"endHours":26.296156713064583,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:18","end":"03:18","startHours":26.296156713064583,"endHours":27.296156713064583,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:18","end":"04:18","startHours":27.296156713064583,"endHours":28.296156713064583,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:18","end":"05:18","startHours":28.296156713064583,"endHours":29.296156713064583,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.643160111093167,"eotMinutes":-10.349229581689698,"ayanamsa":24.0073}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Trayodaśī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"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":"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":"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":[]},"validity":{"eternal":false,"location_specific":"melbourne"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 18, 2011 CE · Melbourne, Australia · Vidhyamitra","description":"January 18, 2011 CE for Melbourne, Australia: Śukla Trayodaśī, sūryodaya 05:18, sūryāsta 19:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/melbourne/2011-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/melbourne/2011-01-18","sa":"https://sa.vidhyamitra.com/city/melbourne/2011-01-18","hi":"https://hi.vidhyamitra.com/city/melbourne/2011-01-18","x-default":"https://vidhyamitra.com/city/melbourne/2011-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T21:51:22.177Z","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":"2026-05-15T21:51:22.177Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T21:51:22.177Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}