{"id":"vidhyamitra:city-day:perth:1963-03-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1963-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-03-13","date_display":"March 13, 1963 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":1963,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438101.770833,"kali_year":5064,"ahargana":1849636.2708,"sun":{"sidereal_longitude":328.6683,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":181.5962,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":212.9279,"elapsed_within_tithi_degrees":8.9279},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.5962,"elapsed_within_degrees":8.2629},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.2645},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"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":1963,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438101.770833,"ahargana":1849636.2708,"kali_year":5064,"ayanamsa_lahiri":23.3388,"grahas":{"sun":{"sidereal_longitude":328.40704099999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":178.28954099999999,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":4.4771},"mars":{"sidereal_longitude":102.59394099999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":313.451141,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":332.06284099999993,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":287.12034100000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":295.48314099999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":97.3693,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":277.3693,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1963,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438101.770833,"kali_year":5064,"ahargana":1849636.2708,"sun":{"sidereal_longitude":328.6683,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":181.5962,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":212.9279,"elapsed_within_tithi_degrees":8.9279},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.5962,"elapsed_within_degrees":8.2629},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.2645},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.477,"elongation":147.072},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.477,"opposition_distance":32.928}},"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":"06:15","sunsetLocal":"18:39","solarNoonLocal":"12:27","dayLengthHours":12.40379154829372,"dayLengthDisplay":"12 Hours 24 Mins 14 Secs","nightLengthDisplay":"11 Hours 35 Mins 46 Secs","moonriseLocal":"20:02","moonsetLocal":"08:50","rahuKala":{"name":"Rāhu Kāla","start":"12:27","end":"14:00","startHours":12.446265332146812,"endHours":13.996739275683526,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:48","end":"09:21","startHours":7.794843501536666,"endHours":9.34531744507338,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:54","end":"12:27","startHours":10.895791388610096,"endHours":12.446265332146812,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:33","startHours":9.138587585935152,"endHours":9.552047304211609,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:46","end":"07:06","startHours":6.7611942058455226,"endHours":7.091961980466689,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:52","startHours":12.032805613870355,"endHours":12.859725050423268,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:35","end":"05:25","startHours":4.590530684894121,"endHours":5.417450121447036,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:15","startHours":5.210720262308808,"endHours":6.244369557999951,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:20","startHours":14.513563923529098,"endHours":15.340483360082013,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:27","end":"18:51","startHours":18.44816110629367,"endHours":18.84816110629367,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:39","end":"19:10","startHours":18.64816110629367,"endHours":19.16498575413924,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:24","end":"20:09","startHours":18.39816110629367,"endHours":20.14816110629367,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:52","startHours":24.032805613870355,"endHours":24.85972505042327,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:15","end":"07:48","startHours":6.244369557999951,"endHours":7.794843501536666,"quality":"auspicious"},{"name":"Amṛta","start":"07:48","end":"09:21","startHours":7.794843501536666,"endHours":9.34531744507338,"quality":"auspicious"},{"name":"Kāla","start":"09:21","end":"10:54","startHours":9.34531744507338,"endHours":10.895791388610096,"quality":"inauspicious"},{"name":"Śubha","start":"10:54","end":"12:27","startHours":10.895791388610096,"endHours":12.446265332146812,"quality":"auspicious"},{"name":"Roga","start":"12:27","end":"14:00","startHours":12.446265332146812,"endHours":13.996739275683526,"quality":"inauspicious"},{"name":"Udveg","start":"14:00","end":"15:33","startHours":13.996739275683526,"endHours":15.547213219220241,"quality":"inauspicious"},{"name":"Chala","start":"15:33","end":"17:06","startHours":15.547213219220241,"endHours":17.097687162756955,"quality":"neutral"},{"name":"Labha","start":"17:06","end":"18:39","startHours":17.097687162756955,"endHours":18.64816110629367,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:39","end":"20:06","startHours":18.64816110629367,"endHours":20.097687162756955,"quality":"inauspicious"},{"name":"Chala","start":"20:06","end":"21:33","startHours":20.097687162756955,"endHours":21.54721321922024,"quality":"neutral"},{"name":"Labha","start":"21:33","end":"23:00","startHours":21.54721321922024,"endHours":22.996739275683524,"quality":"auspicious"},{"name":"Amṛta","start":"23:00","end":"00:27","startHours":22.996739275683524,"endHours":24.44626533214681,"quality":"auspicious"},{"name":"Kāla","start":"00:27","end":"01:54","startHours":24.44626533214681,"endHours":25.895791388610096,"quality":"inauspicious"},{"name":"Śubha","start":"01:54","end":"03:21","startHours":25.895791388610096,"endHours":27.34531744507338,"quality":"auspicious"},{"name":"Roga","start":"03:21","end":"04:48","startHours":27.34531744507338,"endHours":28.79484350153667,"quality":"inauspicious"},{"name":"Udveg","start":"04:48","end":"06:15","startHours":28.79484350153667,"endHours":30.244369557999953,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:15","end":"07:15","startHours":6.244369557999951,"endHours":7.244369557999951,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:15","end":"08:15","startHours":7.244369557999951,"endHours":8.244369557999951,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:15","end":"09:15","startHours":8.244369557999951,"endHours":9.244369557999951,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:15","end":"10:15","startHours":9.244369557999951,"endHours":10.244369557999951,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:15","end":"11:15","startHours":10.244369557999951,"endHours":11.244369557999951,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:15","end":"12:15","startHours":11.244369557999951,"endHours":12.244369557999951,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:15","end":"13:15","startHours":12.244369557999951,"endHours":13.244369557999951,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:15","end":"14:15","startHours":13.244369557999951,"endHours":14.244369557999951,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:15","end":"15:15","startHours":14.244369557999951,"endHours":15.244369557999951,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:15","end":"16:15","startHours":15.244369557999951,"endHours":16.244369557999953,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:15","end":"17:15","startHours":16.244369557999953,"endHours":17.244369557999953,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:15","end":"18:15","startHours":17.244369557999953,"endHours":18.244369557999953,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:15","end":"19:15","startHours":18.244369557999953,"endHours":19.244369557999953,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:15","end":"20:15","startHours":19.244369557999953,"endHours":20.244369557999953,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:15","end":"21:15","startHours":20.244369557999953,"endHours":21.244369557999953,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:15","end":"22:15","startHours":21.244369557999953,"endHours":22.244369557999953,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:15","end":"23:15","startHours":22.244369557999953,"endHours":23.244369557999953,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:15","end":"00:15","startHours":23.244369557999953,"endHours":24.244369557999953,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:15","end":"01:15","startHours":24.244369557999953,"endHours":25.244369557999953,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:15","end":"02:15","startHours":25.244369557999953,"endHours":26.244369557999953,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:15","end":"03:15","startHours":26.244369557999953,"endHours":27.244369557999953,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:15","end":"04:15","startHours":27.244369557999953,"endHours":28.244369557999953,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:15","end":"05:15","startHours":28.244369557999953,"endHours":29.244369557999953,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:15","end":"06:15","startHours":29.244369557999953,"endHours":30.244369557999953,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-3.27338349862787,"eotMinutes":-10.217919928808794,"ayanamsa":23.3388}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Tṛtīyā · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[],"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":[]},"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 March 13, 1963 CE · Perth, Australia · Vidhyamitra","description":"March 13, 1963 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 06:15, sūryāsta 18:39.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1963-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1963-03-13","sa":"https://sa.vidhyamitra.com/city/perth/1963-03-13","hi":"https://hi.vidhyamitra.com/city/perth/1963-03-13","x-default":"https://vidhyamitra.com/city/perth/1963-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:35:20.633Z","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":"2026-05-31T06:35:20.633Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:35:20.633Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}