{"id":"vidhyamitra:city-day:perth:1989-08-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1989-08-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1989-08-07","date_display":"August 7, 1989 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":1989,"month":8,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447745.770833,"kali_year":5091,"ahargana":1859280.2708,"sun":{"sidereal_longitude":110.2704,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":173.8948,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":63.6244,"elapsed_within_tithi_degrees":3.6244},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":173.8948,"elapsed_within_degrees":0.5615},"yoga":{"number":22,"name":"Sādhya","sum_longitude":284.1652},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1989,"month":8,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2447745.770833,"ahargana":1859280.2708,"kali_year":5091,"ayanamsa_lahiri":23.7077,"grahas":{"sun":{"sidereal_longitude":110.81676900000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":171.35596899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":-3.3168},"mars":{"sidereal_longitude":128.57666899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":129.773569,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":67.99216899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":143.252069,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":254.31936900000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":306.3838,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":126.3838,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1989,"month":8,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2447745.770833,"kali_year":5091,"ahargana":1859280.2708,"sun":{"sidereal_longitude":110.2704,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":173.8948,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":63.6244,"elapsed_within_tithi_degrees":3.6244},"nakshatra":{"number":14,"name":"Citrā","pada":1,"moon_longitude":173.8948,"elapsed_within_degrees":0.5615},"yoga":{"number":22,"name":"Sādhya","sum_longitude":284.1652},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.317,"elongation":63.624},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.317,"opposition_distance":116.376}},"eclipse_window_40days":[{"offset_days":10,"type":"lunar","occurs":true,"moon_latitude":-0.662,"opposition_distance":2.433}]},"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":"07:00","sunsetLocal":"17:44","solarNoonLocal":"12:22","dayLengthHours":10.721675200142492,"dayLengthDisplay":"10 Hours 43 Mins 18 Secs","nightLengthDisplay":"13 Hours 16 Mins 42 Secs","moonriseLocal":"10:07","moonsetLocal":"22:42","rahuKala":{"name":"Rāhu Kāla","start":"08:21","end":"09:41","startHours":8.346603396865326,"endHours":9.686812796883137,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:02","end":"12:22","startHours":11.027022196900948,"endHours":12.36723159691876,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:42","end":"15:03","startHours":13.707440996936572,"endHours":15.047650396954383,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:52","startHours":9.508118210214096,"endHours":9.865507383552178,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:44","startHours":7.453130463520118,"endHours":7.7390418021905845,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:43","startHours":12.009842423580677,"endHours":12.724620770256843,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:35","end":"06:17","startHours":5.576837303495182,"endHours":6.291615650171348,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:00","startHours":6.112921063502307,"endHours":7.006393996847514,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:52","startHours":14.154177463609175,"endHours":14.86895581028534,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:32","end":"17:56","startHours":17.528069196990007,"endHours":17.928069196990005,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:44","end":"18:10","startHours":17.728069196990006,"endHours":18.17480566366261,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:29","end":"19:14","startHours":17.478069196990006,"endHours":19.228069196990006,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:43","startHours":24.009842423580675,"endHours":24.724620770256845,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:00","end":"08:21","startHours":7.006393996847514,"endHours":8.346603396865326,"quality":"auspicious"},{"name":"Kāla","start":"08:21","end":"09:41","startHours":8.346603396865326,"endHours":9.686812796883137,"quality":"inauspicious"},{"name":"Śubha","start":"09:41","end":"11:02","startHours":9.686812796883137,"endHours":11.027022196900948,"quality":"auspicious"},{"name":"Roga","start":"11:02","end":"12:22","startHours":11.027022196900948,"endHours":12.36723159691876,"quality":"inauspicious"},{"name":"Udveg","start":"12:22","end":"13:42","startHours":12.36723159691876,"endHours":13.707440996936572,"quality":"inauspicious"},{"name":"Chala","start":"13:42","end":"15:03","startHours":13.707440996936572,"endHours":15.047650396954383,"quality":"neutral"},{"name":"Labha","start":"15:03","end":"16:23","startHours":15.047650396954383,"endHours":16.387859796972194,"quality":"auspicious"},{"name":"Amṛta","start":"16:23","end":"17:44","startHours":16.387859796972194,"endHours":17.728069196990006,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:44","end":"19:23","startHours":17.728069196990006,"endHours":19.387859796972194,"quality":"neutral"},{"name":"Labha","start":"19:23","end":"21:03","startHours":19.387859796972194,"endHours":21.04765039695438,"quality":"auspicious"},{"name":"Amṛta","start":"21:03","end":"22:42","startHours":21.04765039695438,"endHours":22.707440996936572,"quality":"auspicious"},{"name":"Kāla","start":"22:42","end":"00:22","startHours":22.707440996936572,"endHours":24.36723159691876,"quality":"inauspicious"},{"name":"Śubha","start":"00:22","end":"02:02","startHours":24.36723159691876,"endHours":26.027022196900948,"quality":"auspicious"},{"name":"Roga","start":"02:02","end":"03:41","startHours":26.027022196900948,"endHours":27.68681279688314,"quality":"inauspicious"},{"name":"Udveg","start":"03:41","end":"05:21","startHours":27.68681279688314,"endHours":29.346603396865326,"quality":"inauspicious"},{"name":"Chala","start":"05:21","end":"07:00","startHours":29.346603396865326,"endHours":31.006393996847514,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":7.006393996847514,"endHours":8.006393996847514,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":8.006393996847514,"endHours":9.006393996847514,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":9.006393996847514,"endHours":10.006393996847514,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":10.006393996847514,"endHours":11.006393996847514,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":11.006393996847514,"endHours":12.006393996847514,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":12.006393996847514,"endHours":13.006393996847514,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":13.006393996847514,"endHours":14.006393996847514,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":14.006393996847514,"endHours":15.006393996847514,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":15.006393996847514,"endHours":16.006393996847514,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":16.006393996847514,"endHours":17.006393996847514,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":17.006393996847514,"endHours":18.006393996847514,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":18.006393996847514,"endHours":19.006393996847514,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":19.006393996847514,"endHours":20.006393996847514,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":20.006393996847514,"endHours":21.006393996847514,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":21.006393996847514,"endHours":22.006393996847514,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":22.006393996847514,"endHours":23.006393996847514,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":23.006393996847514,"endHours":24.006393996847514,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":24.006393996847514,"endHours":25.006393996847514,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":25.006393996847514,"endHours":26.006393996847514,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":26.006393996847514,"endHours":27.006393996847514,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":27.006393996847514,"endHours":28.006393996847514,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":28.006393996847514,"endHours":29.006393996847514,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":29.006393996847514,"endHours":30.006393996847514,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":30.006393996847514,"endHours":31.006393996847514,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":16.47301768586555,"eotMinutes":-5.475895815125568,"ayanamsa":23.7077}},"calendars":{"vikram_samvat":2046,"vikram_samvatsara":"Citrabhānu","saka_samvat":1911,"saka_samvatsara":"Śukla","bengali_samvat":1396,"malayalam_era":1165,"nanakshahi_year":520,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Ṣaṣṭhī · Vikram 2046 Citrabhānu · Śaka 1911 Śukla"},"festivals":[{"id":"kalki-jayanti","name":"Kalki Jayantī","name_sanskrit":"कल्कि जयन्ती","tradition":"Vaishnava","associated_deity":"Kalki (10th daśāvatāra of Krishna)","deity_avatara_index":22,"significance":"Future Kalki avatāra — to manifest at end of Kali Yuga; observed Śrāvaṇa Śukla 6.","vrata":false,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Śrāvaṇa"},"precedence":4,"sources":["Bhāgavata 12.2.18-20","Kalki Purāṇa"]}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 August 7, 1989 CE · Perth, Australia · Vidhyamitra","description":"August 7, 1989 CE for Perth, Australia: Śukla Ṣaṣṭhī, sūryodaya 07:00, sūryāsta 17:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1989-08-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1989-08-07","sa":"https://sa.vidhyamitra.com/city/perth/1989-08-07","hi":"https://hi.vidhyamitra.com/city/perth/1989-08-07","x-default":"https://vidhyamitra.com/city/perth/1989-08-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:31:18.336Z","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":"2026-06-01T13:31:18.336Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:31:18.336Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}