{"id":"vidhyamitra:city-day:perth:1973-01-19:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1973-01-19","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1973-01-19","date_display":"January 19, 1973 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":1973,"month":1,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441701.770833,"kali_year":5074,"ahargana":1853236.2708,"sun":{"sidereal_longitude":275.3336,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":98.6284,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":183.2948,"elapsed_within_tithi_degrees":3.2948},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":98.6284,"elapsed_within_degrees":5.2951},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.962},"karana":{"half_tithi_index":30,"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":1973,"month":1,"day":19,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441701.770833,"ahargana":1853236.2708,"kali_year":5074,"ayanamsa_lahiri":23.4765,"grahas":{"sun":{"sidereal_longitude":275.34679400000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":97.33759399999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":-0.935},"mars":{"sidereal_longitude":230.12939400000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":269.425294,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":269.081094,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":255.972894,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":51.05069400000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":266.624,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":86.624,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":1973,"month":1,"day":19,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441701.770833,"kali_year":5074,"ahargana":1853236.2708,"sun":{"sidereal_longitude":275.3336,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":98.6284,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":183.2948,"elapsed_within_tithi_degrees":3.2948},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":98.6284,"elapsed_within_degrees":5.2951},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.962},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.935,"elongation":176.705},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.935,"opposition_distance":3.295}},"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":"05:29","sunsetLocal":"19:25","solarNoonLocal":"12:27","dayLengthHours":13.931385311782718,"dayLengthDisplay":"13 Hours 55 Mins 53 Secs","nightLengthDisplay":"10 Hours 04 Mins 07 Secs","moonriseLocal":"19:25","moonsetLocal":"05:46","rahuKala":{"name":"Rāhu Kāla","start":"10:43","end":"12:27","startHours":10.71224440159083,"endHours":12.45366756556367,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:56","end":"17:41","startHours":15.93651389350935,"endHours":17.67793705748219,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:58","startHours":7.229398073645152,"endHours":8.970821237617992,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:12","startHours":8.738631482421614,"endHours":9.20301099281437,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:26","startHours":6.068449297663259,"endHours":6.4399529059774645,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:55","startHours":11.989288055170915,"endHours":12.918047075956428,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:34","startHours":3.630456868101283,"endHours":4.559215888886797,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:20","end":"05:29","startHours":4.327026133690419,"endHours":5.487974909672312,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.775565117527458,"endHours":15.704324138312973,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.21936022145503,"endHours":19.61936022145503,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.41936022145503,"endHours":19.999834609445976,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16936022145503,"endHours":20.91936022145503,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:55","startHours":23.989288055170913,"endHours":24.918047075956427,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:29","end":"07:14","startHours":5.487974909672312,"endHours":7.229398073645152,"quality":"neutral"},{"name":"Labha","start":"07:14","end":"08:58","startHours":7.229398073645152,"endHours":8.970821237617992,"quality":"auspicious"},{"name":"Amṛta","start":"08:58","end":"10:43","startHours":8.970821237617992,"endHours":10.71224440159083,"quality":"auspicious"},{"name":"Kāla","start":"10:43","end":"12:27","startHours":10.71224440159083,"endHours":12.45366756556367,"quality":"inauspicious"},{"name":"Śubha","start":"12:27","end":"14:12","startHours":12.45366756556367,"endHours":14.19509072953651,"quality":"auspicious"},{"name":"Roga","start":"14:12","end":"15:56","startHours":14.19509072953651,"endHours":15.93651389350935,"quality":"inauspicious"},{"name":"Udveg","start":"15:56","end":"17:41","startHours":15.93651389350935,"endHours":17.67793705748219,"quality":"inauspicious"},{"name":"Chala","start":"17:41","end":"19:25","startHours":17.67793705748219,"endHours":19.41936022145503,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:25","end":"20:41","startHours":19.41936022145503,"endHours":20.67793705748219,"quality":"inauspicious"},{"name":"Udveg","start":"20:41","end":"21:56","startHours":20.67793705748219,"endHours":21.93651389350935,"quality":"inauspicious"},{"name":"Chala","start":"21:56","end":"23:12","startHours":21.93651389350935,"endHours":23.19509072953651,"quality":"neutral"},{"name":"Labha","start":"23:12","end":"00:27","startHours":23.19509072953651,"endHours":24.45366756556367,"quality":"auspicious"},{"name":"Amṛta","start":"00:27","end":"01:43","startHours":24.45366756556367,"endHours":25.71224440159083,"quality":"auspicious"},{"name":"Kāla","start":"01:43","end":"02:58","startHours":25.71224440159083,"endHours":26.97082123761799,"quality":"inauspicious"},{"name":"Śubha","start":"02:58","end":"04:14","startHours":26.97082123761799,"endHours":28.22939807364515,"quality":"auspicious"},{"name":"Roga","start":"04:14","end":"05:29","startHours":28.22939807364515,"endHours":29.48797490967231,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:29","end":"06:29","startHours":5.487974909672312,"endHours":6.487974909672312,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:29","end":"07:29","startHours":6.487974909672312,"endHours":7.487974909672312,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:29","end":"08:29","startHours":7.487974909672312,"endHours":8.487974909672312,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:29","end":"09:29","startHours":8.487974909672312,"endHours":9.487974909672312,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:29","end":"10:29","startHours":9.487974909672312,"endHours":10.487974909672312,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:29","end":"11:29","startHours":10.487974909672312,"endHours":11.487974909672312,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:29","end":"12:29","startHours":11.487974909672312,"endHours":12.487974909672312,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:29","end":"13:29","startHours":12.487974909672312,"endHours":13.487974909672312,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:29","end":"14:29","startHours":13.487974909672312,"endHours":14.487974909672312,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:29","end":"15:29","startHours":14.487974909672312,"endHours":15.487974909672312,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:29","end":"16:29","startHours":15.487974909672312,"endHours":16.48797490967231,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:29","end":"17:29","startHours":16.48797490967231,"endHours":17.48797490967231,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:29","end":"18:29","startHours":17.48797490967231,"endHours":18.48797490967231,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:29","end":"19:29","startHours":18.48797490967231,"endHours":19.48797490967231,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:29","end":"20:29","startHours":19.48797490967231,"endHours":20.48797490967231,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:29","end":"21:29","startHours":20.48797490967231,"endHours":21.48797490967231,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:29","end":"22:29","startHours":21.48797490967231,"endHours":22.48797490967231,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:29","end":"23:29","startHours":22.48797490967231,"endHours":23.48797490967231,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:29","end":"00:29","startHours":23.48797490967231,"endHours":24.48797490967231,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:29","end":"01:29","startHours":24.48797490967231,"endHours":25.48797490967231,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:29","end":"02:29","startHours":25.48797490967231,"endHours":26.48797490967231,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:29","end":"03:29","startHours":26.48797490967231,"endHours":27.48797490967231,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:29","end":"04:29","startHours":27.48797490967231,"endHours":28.48797490967231,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:29","end":"05:29","startHours":28.48797490967231,"endHours":29.48797490967231,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"South-East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.393009147953023,"eotMinutes":-10.662053933820344,"ayanamsa":23.4765}},"calendars":{"vikram_samvat":2030,"vikram_samvatsara":"Akṣaya","saka_samvat":1895,"saka_samvatsara":"Pramādī","bengali_samvat":1380,"malayalam_era":1149,"nanakshahi_year":504,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Pratipada · Vikram 2030 Akṣaya · Śaka 1895 Pramādī"},"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":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 19, 1973 CE · Perth, Australia · Vidhyamitra","description":"January 19, 1973 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 05:29, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1973-01-19","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1973-01-19","sa":"https://sa.vidhyamitra.com/city/perth/1973-01-19","hi":"https://hi.vidhyamitra.com/city/perth/1973-01-19","x-default":"https://vidhyamitra.com/city/perth/1973-01-19"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:33:05.226Z","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":"2026-05-31T13:33:05.226Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:33:05.226Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}