{"id":"vidhyamitra:city-day:perth:1965-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1965-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1965-01-13","date_display":"January 13, 1965 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":1965,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438773.770833,"kali_year":5066,"ahargana":1850308.2708,"sun":{"sidereal_longitude":269.2462,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":29.6723,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.4261,"elapsed_within_tithi_degrees":0.4261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":29.6723,"elapsed_within_degrees":3.0056},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.9186},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1965,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438773.770833,"ahargana":1850308.2708,"kali_year":5066,"ayanamsa_lahiri":23.3645,"grahas":{"sun":{"sidereal_longitude":269.289765,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":26.58376499999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":-2.3889},"mars":{"sidereal_longitude":153.62386500000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":246.92506500000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":23.44016499999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":248.03376500000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":309.776665,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":61.7635,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":241.7635,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"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":1965,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438773.770833,"kali_year":5066,"ahargana":1850308.2708,"sun":{"sidereal_longitude":269.2462,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":29.6723,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":120.4261,"elapsed_within_tithi_degrees":0.4261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":29.6723,"elapsed_within_degrees":3.0056},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.9186},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.389,"elongation":120.426},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.389,"opposition_distance":59.574}},"eclipse_window_40days":[{"offset_days":-10,"type":"solar","occurs":true,"moon_latitude":-1.5,"elongation":2.813}]},"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":"05:24","sunsetLocal":"19:27","solarNoonLocal":"12:25","dayLengthHours":14.045051438767654,"dayLengthDisplay":"14 Hours 02 Mins 42 Secs","nightLengthDisplay":"9 Hours 57 Mins 18 Secs","moonriseLocal":"14:57","moonsetLocal":"01:31","rahuKala":{"name":"Rāhu Kāla","start":"12:25","end":"14:11","startHours":12.419898858189562,"endHours":14.175530288035517,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:09","end":"08:55","startHours":7.15300456865169,"endHours":8.908635998497648,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:40","end":"12:25","startHours":10.664267428343603,"endHours":12.419898858189562,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:09","startHours":8.67455180785152,"endHours":9.142720189143775,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:59","end":"06:21","startHours":5.982583615421053,"endHours":6.357118320454857,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:53","startHours":11.951730476897305,"endHours":12.888067239481815,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:31","end":"04:28","startHours":3.5246996136367135,"endHours":4.461036376221224,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:14","end":"05:24","startHours":4.226952185575096,"endHours":5.397373138805734,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:42","startHours":14.760740764650837,"endHours":15.697077527235347,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.242424577573388,"endHours":19.642424577573387,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.442424577573387,"endHours":20.027635054188707,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.192424577573387,"endHours":20.942424577573387,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:53","startHours":23.951730476897307,"endHours":24.888067239481817,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:24","end":"07:09","startHours":5.397373138805734,"endHours":7.15300456865169,"quality":"auspicious"},{"name":"Amṛta","start":"07:09","end":"08:55","startHours":7.15300456865169,"endHours":8.908635998497648,"quality":"auspicious"},{"name":"Kāla","start":"08:55","end":"10:40","startHours":8.908635998497648,"endHours":10.664267428343603,"quality":"inauspicious"},{"name":"Śubha","start":"10:40","end":"12:25","startHours":10.664267428343603,"endHours":12.419898858189562,"quality":"auspicious"},{"name":"Roga","start":"12:25","end":"14:11","startHours":12.419898858189562,"endHours":14.175530288035517,"quality":"inauspicious"},{"name":"Udveg","start":"14:11","end":"15:56","startHours":14.175530288035517,"endHours":15.931161717881473,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.931161717881473,"endHours":17.686793147727432,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:27","startHours":17.686793147727432,"endHours":19.442424577573387,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:27","end":"20:41","startHours":19.442424577573387,"endHours":20.686793147727432,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.686793147727432,"endHours":21.931161717881473,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:11","startHours":21.931161717881473,"endHours":23.175530288035517,"quality":"auspicious"},{"name":"Amṛta","start":"23:11","end":"00:25","startHours":23.175530288035517,"endHours":24.419898858189562,"quality":"auspicious"},{"name":"Kāla","start":"00:25","end":"01:40","startHours":24.419898858189562,"endHours":25.664267428343603,"quality":"inauspicious"},{"name":"Śubha","start":"01:40","end":"02:55","startHours":25.664267428343603,"endHours":26.908635998497648,"quality":"auspicious"},{"name":"Roga","start":"02:55","end":"04:09","startHours":26.908635998497648,"endHours":28.15300456865169,"quality":"inauspicious"},{"name":"Udveg","start":"04:09","end":"05:24","startHours":28.15300456865169,"endHours":29.397373138805733,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:24","end":"06:24","startHours":5.397373138805734,"endHours":6.397373138805734,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:24","end":"07:24","startHours":6.397373138805734,"endHours":7.397373138805734,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:24","end":"08:24","startHours":7.397373138805734,"endHours":8.397373138805733,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:24","end":"09:24","startHours":8.397373138805733,"endHours":9.397373138805733,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:24","end":"10:24","startHours":9.397373138805733,"endHours":10.397373138805733,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:24","end":"11:24","startHours":10.397373138805733,"endHours":11.397373138805733,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:24","end":"12:24","startHours":11.397373138805733,"endHours":12.397373138805733,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:24","end":"13:24","startHours":12.397373138805733,"endHours":13.397373138805733,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:24","end":"14:24","startHours":13.397373138805733,"endHours":14.397373138805733,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:24","end":"15:24","startHours":14.397373138805733,"endHours":15.397373138805733,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:24","end":"16:24","startHours":15.397373138805733,"endHours":16.397373138805733,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:24","end":"17:24","startHours":16.397373138805733,"endHours":17.397373138805733,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:24","end":"18:24","startHours":17.397373138805733,"endHours":18.397373138805733,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:24","end":"19:24","startHours":18.397373138805733,"endHours":19.397373138805733,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:24","end":"20:24","startHours":19.397373138805733,"endHours":20.397373138805733,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:24","end":"21:24","startHours":20.397373138805733,"endHours":21.397373138805733,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:24","end":"22:24","startHours":21.397373138805733,"endHours":22.397373138805733,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:24","end":"23:24","startHours":22.397373138805733,"endHours":23.397373138805733,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:24","end":"00:24","startHours":23.397373138805733,"endHours":24.397373138805733,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:24","end":"01:24","startHours":24.397373138805733,"endHours":25.397373138805733,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:24","end":"02:24","startHours":25.397373138805733,"endHours":26.397373138805733,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:24","end":"03:24","startHours":26.397373138805733,"endHours":27.397373138805733,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:24","end":"04:24","startHours":27.397373138805733,"endHours":28.397373138805733,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:24","end":"05:24","startHours":28.397373138805733,"endHours":29.397373138805733,"planetary_lord":"Sun"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.53353572883575,"eotMinutes":-8.635931491373626,"ayanamsa":23.3645}},"calendars":{"vikram_samvat":2022,"vikram_samvatsara":"Kālayukta","saka_samvat":1887,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1372,"malayalam_era":1141,"nanakshahi_year":496,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Ekādaśī · Vikram 2022 Kālayukta · Śaka 1887 Viśvāvasu"},"festivals":[{"id":"putrada-ekadashi","name":"Pauṣa Putradā Ekādaśī","name_sanskrit":"पौष पुत्रदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Ekādaśī granting putra-prāpti.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":4},{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"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":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 13, 1965 CE · Perth, Australia · Vidhyamitra","description":"January 13, 1965 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:24, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1965-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1965-01-13","sa":"https://sa.vidhyamitra.com/city/perth/1965-01-13","hi":"https://hi.vidhyamitra.com/city/perth/1965-01-13","x-default":"https://vidhyamitra.com/city/perth/1965-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T14:27:08.140Z","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":"2026-06-01T14:27:08.140Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T14:27:08.140Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}