{"id":"vidhyamitra:city-day:perth:1963-05-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1963-05-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-05-17","date_display":"May 17, 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":5,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438166.770833,"kali_year":5065,"ahargana":1849701.2708,"sun":{"sidereal_longitude":32.1541,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":311.6535,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":279.4995,"elapsed_within_tithi_degrees":3.4995},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":311.6535,"elapsed_within_degrees":4.9869},"yoga":{"number":26,"name":"Indra","sum_longitude":343.8076},"karana":{"half_tithi_index":46,"name":"Taitila"},"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":1963,"month":5,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438166.770833,"ahargana":1849701.2708,"kali_year":5065,"ayanamsa_lahiri":23.3413,"grahas":{"sun":{"sidereal_longitude":32.09605699999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":308.096757,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-2.7519},"mars":{"sidereal_longitude":119.01385700000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":34.40785699999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":346.998257,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":4.777856999999983,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":300.2067569999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":93.9253,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.9253,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1963,"month":5,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438166.770833,"kali_year":5065,"ahargana":1849701.2708,"sun":{"sidereal_longitude":32.1541,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":311.6535,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":279.4995,"elapsed_within_tithi_degrees":3.4995},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":311.6535,"elapsed_within_degrees":4.9869},"yoga":{"number":26,"name":"Indra","sum_longitude":343.8076},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.752,"elongation":80.501},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.752,"opposition_distance":99.499}},"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":"06:59","sunsetLocal":"17:27","solarNoonLocal":"12:13","dayLengthHours":10.476821176146542,"dayLengthDisplay":"10 Hours 28 Mins 37 Secs","nightLengthDisplay":"13 Hours 31 Mins 23 Secs","moonriseLocal":"00:06","moonsetLocal":"13:07","rahuKala":{"name":"Rāhu Kāla","start":"10:54","end":"12:13","startHours":10.904349359748132,"endHours":12.213952006766448,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:50","end":"16:09","startHours":14.833157300803084,"endHours":16.142759947821403,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:17","end":"09:36","startHours":8.285144065711496,"endHours":9.594746712729814,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:46","startHours":9.420133026460704,"endHours":9.769360398998922,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:25","end":"07:41","startHours":7.412075634365951,"endHours":7.691457532396525,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.86472463422823,"endHours":12.563179379304666,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:35","end":"06:17","startHours":5.578631928540306,"endHours":6.277086673616742,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:06","end":"06:59","startHours":6.102472987347633,"endHours":6.975541418693178,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:40","startHours":13.96008886945754,"endHours":14.658543614533976,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:15","end":"17:39","startHours":17.25236259483972,"endHours":17.65236259483972,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:27","end":"17:53","startHours":17.45236259483972,"endHours":17.88889681051249,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:12","end":"18:57","startHours":17.20236259483972,"endHours":18.95236259483972,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.864724634228228,"endHours":24.563179379304668,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:59","end":"08:17","startHours":6.975541418693178,"endHours":8.285144065711496,"quality":"neutral"},{"name":"Labha","start":"08:17","end":"09:36","startHours":8.285144065711496,"endHours":9.594746712729814,"quality":"auspicious"},{"name":"Amṛta","start":"09:36","end":"10:54","startHours":9.594746712729814,"endHours":10.904349359748132,"quality":"auspicious"},{"name":"Kāla","start":"10:54","end":"12:13","startHours":10.904349359748132,"endHours":12.213952006766448,"quality":"inauspicious"},{"name":"Śubha","start":"12:13","end":"13:31","startHours":12.213952006766448,"endHours":13.523554653784768,"quality":"auspicious"},{"name":"Roga","start":"13:31","end":"14:50","startHours":13.523554653784768,"endHours":14.833157300803084,"quality":"inauspicious"},{"name":"Udveg","start":"14:50","end":"16:09","startHours":14.833157300803084,"endHours":16.142759947821403,"quality":"inauspicious"},{"name":"Chala","start":"16:09","end":"17:27","startHours":16.142759947821403,"endHours":17.45236259483972,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:27","end":"19:09","startHours":17.45236259483972,"endHours":19.142759947821403,"quality":"inauspicious"},{"name":"Udveg","start":"19:09","end":"20:50","startHours":19.142759947821403,"endHours":20.833157300803084,"quality":"inauspicious"},{"name":"Chala","start":"20:50","end":"22:31","startHours":20.833157300803084,"endHours":22.523554653784768,"quality":"neutral"},{"name":"Labha","start":"22:31","end":"00:13","startHours":22.523554653784768,"endHours":24.213952006766448,"quality":"auspicious"},{"name":"Amṛta","start":"00:13","end":"01:54","startHours":24.213952006766448,"endHours":25.90434935974813,"quality":"auspicious"},{"name":"Kāla","start":"01:54","end":"03:36","startHours":25.90434935974813,"endHours":27.594746712729815,"quality":"inauspicious"},{"name":"Śubha","start":"03:36","end":"05:17","startHours":27.594746712729815,"endHours":29.285144065711496,"quality":"auspicious"},{"name":"Roga","start":"05:17","end":"06:59","startHours":29.285144065711496,"endHours":30.975541418693176,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:59","end":"07:59","startHours":6.975541418693178,"endHours":7.975541418693178,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:59","end":"08:59","startHours":7.975541418693178,"endHours":8.975541418693178,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:59","end":"09:59","startHours":8.975541418693178,"endHours":9.975541418693178,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:59","end":"10:59","startHours":9.975541418693178,"endHours":10.975541418693178,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:59","end":"11:59","startHours":10.975541418693178,"endHours":11.975541418693178,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:59","end":"12:59","startHours":11.975541418693178,"endHours":12.975541418693178,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:59","end":"13:59","startHours":12.975541418693178,"endHours":13.975541418693178,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:59","end":"14:59","startHours":13.975541418693178,"endHours":14.975541418693178,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:59","end":"15:59","startHours":14.975541418693178,"endHours":15.975541418693178,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:59","end":"16:59","startHours":15.975541418693178,"endHours":16.975541418693176,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:59","end":"17:59","startHours":16.975541418693176,"endHours":17.975541418693176,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:59","end":"18:59","startHours":17.975541418693176,"endHours":18.975541418693176,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:59","end":"19:59","startHours":18.975541418693176,"endHours":19.975541418693176,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:59","end":"20:59","startHours":19.975541418693176,"endHours":20.975541418693176,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:59","end":"21:59","startHours":20.975541418693176,"endHours":21.975541418693176,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:59","end":"22:59","startHours":21.975541418693176,"endHours":22.975541418693176,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:59","end":"23:59","startHours":22.975541418693176,"endHours":23.975541418693176,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:59","end":"00:59","startHours":23.975541418693176,"endHours":24.975541418693176,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:59","end":"01:59","startHours":24.975541418693176,"endHours":25.975541418693176,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:59","end":"02:59","startHours":25.975541418693176,"endHours":26.975541418693176,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:59","end":"03:59","startHours":26.975541418693176,"endHours":27.975541418693176,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:59","end":"04:59","startHours":27.975541418693176,"endHours":28.975541418693176,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:59","end":"05:59","startHours":28.975541418693176,"endHours":29.975541418693176,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:59","end":"06:59","startHours":29.975541418693176,"endHours":30.975541418693176,"planetary_lord":"Mars"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":19.1192426208263,"eotMinutes":3.7208795940131294,"ayanamsa":23.3413}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Navamī · Vikram 2020 Nala · Śaka 1885 Śobhana"},"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 May 17, 1963 CE · Perth, Australia · Vidhyamitra","description":"May 17, 1963 CE for Perth, Australia: Kṛṣṇa Navamī, sūryodaya 06:59, sūryāsta 17:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1963-05-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1963-05-17","sa":"https://sa.vidhyamitra.com/city/perth/1963-05-17","hi":"https://hi.vidhyamitra.com/city/perth/1963-05-17","x-default":"https://vidhyamitra.com/city/perth/1963-05-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:36:05.035Z","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":"2026-05-31T15:36:05.035Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:36:05.035Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}