{"id":"vidhyamitra:city-day:perth:1979-05-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1979-05-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1979-05-16","date_display":"May 16, 1979 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":1979,"month":5,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444009.770833,"kali_year":5081,"ahargana":1855544.2708,"sun":{"sidereal_longitude":31.0621,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":261.1842,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":230.1221,"elapsed_within_tithi_degrees":2.1221},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.1842,"elapsed_within_degrees":7.8509},"yoga":{"number":22,"name":"Sādhya","sum_longitude":292.2463},"karana":{"half_tithi_index":38,"name":"Kaulava"},"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":1979,"month":5,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444009.770833,"ahargana":1855544.2708,"kali_year":5081,"ayanamsa_lahiri":23.5648,"grahas":{"sun":{"sidereal_longitude":31.035011999999995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":261.96261200000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false,"latitude":4.014},"mars":{"sidereal_longitude":6.583711999999991,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":15.69731200000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":98.948012,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"venus":{"sidereal_longitude":4.35511200000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":133.38841200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":144.335,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":324.335,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1979,"month":5,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444009.770833,"kali_year":5081,"ahargana":1855544.2708,"sun":{"sidereal_longitude":31.0621,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":261.1842,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":230.1221,"elapsed_within_tithi_degrees":2.1221},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3,"moon_longitude":261.1842,"elapsed_within_degrees":7.8509},"yoga":{"number":22,"name":"Sādhya","sum_longitude":292.2463},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.014,"elongation":129.878},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.014,"opposition_distance":50.122}},"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":"06:58","sunsetLocal":"17:28","solarNoonLocal":"12:13","dayLengthHours":10.49581829268535,"dayLengthDisplay":"10 Hours 29 Mins 45 Secs","nightLengthDisplay":"13 Hours 30 Mins 15 Secs","moonriseLocal":"20:33","moonsetLocal":"10:40","rahuKala":{"name":"Rāhu Kāla","start":"12:13","end":"13:32","startHours":12.213579084020207,"endHours":13.525556370605877,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:17","end":"09:35","startHours":8.277647224263202,"endHours":9.58962451084887,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:54","end":"12:13","startHours":10.901601797434537,"endHours":12.213579084020207,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:46","startHours":9.41469420597078,"endHours":9.764554815726958,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:24","end":"07:41","startHours":7.402995699872755,"endHours":7.682884187677698,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.86371847426403,"endHours":12.563439693776385,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:34","end":"06:16","startHours":5.566227498652819,"endHours":6.265948718165175,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"06:58","startHours":6.091018413287086,"endHours":6.965669937677532,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:40","startHours":13.962882132801099,"endHours":14.662603352313456,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:16","end":"17:40","startHours":17.261488230362882,"endHours":17.66148823036288,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:28","end":"17:54","startHours":17.461488230362882,"endHours":17.898813992558104,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:13","end":"18:58","startHours":17.211488230362882,"endHours":18.961488230362882,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.86371847426403,"endHours":24.563439693776385,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:58","end":"08:17","startHours":6.965669937677532,"endHours":8.277647224263202,"quality":"auspicious"},{"name":"Amṛta","start":"08:17","end":"09:35","startHours":8.277647224263202,"endHours":9.58962451084887,"quality":"auspicious"},{"name":"Kāla","start":"09:35","end":"10:54","startHours":9.58962451084887,"endHours":10.901601797434537,"quality":"inauspicious"},{"name":"Śubha","start":"10:54","end":"12:13","startHours":10.901601797434537,"endHours":12.213579084020207,"quality":"auspicious"},{"name":"Roga","start":"12:13","end":"13:32","startHours":12.213579084020207,"endHours":13.525556370605877,"quality":"inauspicious"},{"name":"Udveg","start":"13:32","end":"14:50","startHours":13.525556370605877,"endHours":14.837533657191544,"quality":"inauspicious"},{"name":"Chala","start":"14:50","end":"16:09","startHours":14.837533657191544,"endHours":16.149510943777212,"quality":"neutral"},{"name":"Labha","start":"16:09","end":"17:28","startHours":16.149510943777212,"endHours":17.461488230362882,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:28","end":"19:09","startHours":17.461488230362882,"endHours":19.149510943777212,"quality":"inauspicious"},{"name":"Chala","start":"19:09","end":"20:50","startHours":19.149510943777212,"endHours":20.837533657191543,"quality":"neutral"},{"name":"Labha","start":"20:50","end":"22:32","startHours":20.837533657191543,"endHours":22.525556370605877,"quality":"auspicious"},{"name":"Amṛta","start":"22:32","end":"00:13","startHours":22.525556370605877,"endHours":24.213579084020207,"quality":"auspicious"},{"name":"Kāla","start":"00:13","end":"01:54","startHours":24.213579084020207,"endHours":25.901601797434537,"quality":"inauspicious"},{"name":"Śubha","start":"01:54","end":"03:35","startHours":25.901601797434537,"endHours":27.58962451084887,"quality":"auspicious"},{"name":"Roga","start":"03:35","end":"05:17","startHours":27.58962451084887,"endHours":29.2776472242632,"quality":"inauspicious"},{"name":"Udveg","start":"05:17","end":"06:58","startHours":29.2776472242632,"endHours":30.965669937677532,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:58","end":"07:58","startHours":6.965669937677532,"endHours":7.965669937677532,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:58","end":"08:58","startHours":7.965669937677532,"endHours":8.965669937677532,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:58","end":"09:58","startHours":8.965669937677532,"endHours":9.965669937677532,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:58","end":"10:58","startHours":9.965669937677532,"endHours":10.965669937677532,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:58","end":"11:58","startHours":10.965669937677532,"endHours":11.965669937677532,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:58","end":"12:58","startHours":11.965669937677532,"endHours":12.965669937677532,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:58","end":"13:58","startHours":12.965669937677532,"endHours":13.965669937677532,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:58","end":"14:58","startHours":13.965669937677532,"endHours":14.965669937677532,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:58","end":"15:58","startHours":14.965669937677532,"endHours":15.965669937677532,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:58","end":"16:58","startHours":15.965669937677532,"endHours":16.965669937677532,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:58","end":"17:58","startHours":16.965669937677532,"endHours":17.965669937677532,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:58","end":"18:58","startHours":17.965669937677532,"endHours":18.965669937677532,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:58","end":"19:58","startHours":18.965669937677532,"endHours":19.965669937677532,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:58","end":"20:58","startHours":19.965669937677532,"endHours":20.965669937677532,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:58","end":"21:58","startHours":20.965669937677532,"endHours":21.965669937677532,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:58","end":"22:58","startHours":21.965669937677532,"endHours":22.965669937677532,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:58","end":"23:58","startHours":22.965669937677532,"endHours":23.965669937677532,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:58","end":"00:58","startHours":23.965669937677532,"endHours":24.965669937677532,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:58","end":"01:58","startHours":24.965669937677532,"endHours":25.965669937677532,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:58","end":"02:58","startHours":25.965669937677532,"endHours":26.965669937677532,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:58","end":"03:58","startHours":26.965669937677532,"endHours":27.965669937677532,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:58","end":"04:58","startHours":27.965669937677532,"endHours":28.965669937677532,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:58","end":"05:58","startHours":28.965669937677532,"endHours":29.965669937677532,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:58","end":"06:58","startHours":29.965669937677532,"endHours":30.965669937677532,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.917237135718693,"eotMinutes":3.743254958787478,"ayanamsa":23.5648}},"calendars":{"vikram_samvat":2036,"vikram_samvatsara":"Aṅgirasa","saka_samvat":1901,"saka_samvatsara":"Siddhārthī","bengali_samvat":1386,"malayalam_era":1155,"nanakshahi_year":510,"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 Pañcamī · Vikram 2036 Aṅgirasa · Śaka 1901 Siddhārthī"},"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 May 16, 1979 CE · Perth, Australia · Vidhyamitra","description":"May 16, 1979 CE for Perth, Australia: Kṛṣṇa Pañcamī, sūryodaya 06:58, sūryāsta 17:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1979-05-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1979-05-16","sa":"https://sa.vidhyamitra.com/city/perth/1979-05-16","hi":"https://hi.vidhyamitra.com/city/perth/1979-05-16","x-default":"https://vidhyamitra.com/city/perth/1979-05-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:23:31.781Z","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":"2026-06-01T21:23:31.781Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:23:31.781Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}