{"id":"vidhyamitra:city-day:perth:1982-07-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1982-07-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1982-07-13","date_display":"July 13, 1982 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":1982,"month":7,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445163.770833,"kali_year":5084,"ahargana":1856698.2708,"sun":{"sidereal_longitude":86.3591,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":346.3192,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":259.9601,"elapsed_within_tithi_degrees":7.9601},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":346.3192,"elapsed_within_degrees":12.9859},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":72.6783},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1982,"month":7,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2445163.770833,"ahargana":1856698.2708,"kali_year":5084,"ayanamsa_lahiri":23.6089,"grahas":{"sun":{"sidereal_longitude":86.73271999999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"moon":{"sidereal_longitude":343.02002,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false,"latitude":-4.4676},"mars":{"sidereal_longitude":175.17712000000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":73.11221999999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":187.75851999999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":57.49502000000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":172.08632,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":83.1906,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":263.1906,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva 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":1982,"month":7,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2445163.770833,"kali_year":5084,"ahargana":1856698.2708,"sun":{"sidereal_longitude":86.3591,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":346.3192,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":259.9601,"elapsed_within_tithi_degrees":7.9601},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":346.3192,"elapsed_within_degrees":12.9859},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":72.6783},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.468,"elongation":100.04},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.468,"opposition_distance":79.96}},"eclipse_window_40days":[{"offset_days":-7,"type":"lunar","occurs":true,"moon_latitude":0.481,"opposition_distance":2.313}]},"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":"07:16","sunsetLocal":"17:28","solarNoonLocal":"12:22","dayLengthHours":10.209774137223059,"dayLengthDisplay":"10 Hours 12 Mins 35 Secs","nightLengthDisplay":"13 Hours 47 Mins 25 Secs","moonriseLocal":"23:31","moonsetLocal":"11:23","rahuKala":{"name":"Rāhu Kāla","start":"14:55","end":"16:12","startHours":14.917767348408441,"endHours":16.193989115561322,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:49","end":"11:05","startHours":9.81288027979691,"endHours":11.089102046949794,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:22","end":"13:38","startHours":12.365323814102677,"endHours":13.641545581255558,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:59","startHours":9.642717377509861,"endHours":9.983043182083962,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:41","end":"07:57","startHours":7.685844001208774,"endHours":7.9581046448680555,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:42","startHours":12.024998009528575,"endHours":12.705649618676778,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:54","end":"06:35","startHours":5.8991335271947385,"endHours":6.5797851363429425,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:25","end":"07:16","startHours":6.409622234055892,"endHours":7.2604367454911465,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:45","startHours":14.066952836973186,"endHours":14.74760444612139,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:16","end":"17:40","startHours":17.270210882714206,"endHours":17.670210882714205,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:28","end":"17:54","startHours":17.470210882714206,"endHours":17.895618138431832,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:13","end":"18:58","startHours":17.220210882714206,"endHours":18.970210882714206,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:42","startHours":24.024998009528574,"endHours":24.70564961867678,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:16","end":"08:32","startHours":7.2604367454911465,"endHours":8.53665851264403,"quality":"inauspicious"},{"name":"Udveg","start":"08:32","end":"09:49","startHours":8.53665851264403,"endHours":9.81288027979691,"quality":"inauspicious"},{"name":"Chala","start":"09:49","end":"11:05","startHours":9.81288027979691,"endHours":11.089102046949794,"quality":"neutral"},{"name":"Labha","start":"11:05","end":"12:22","startHours":11.089102046949794,"endHours":12.365323814102677,"quality":"auspicious"},{"name":"Amṛta","start":"12:22","end":"13:38","startHours":12.365323814102677,"endHours":13.641545581255558,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"14:55","startHours":13.641545581255558,"endHours":14.917767348408441,"quality":"inauspicious"},{"name":"Śubha","start":"14:55","end":"16:12","startHours":14.917767348408441,"endHours":16.193989115561322,"quality":"auspicious"},{"name":"Roga","start":"16:12","end":"17:28","startHours":16.193989115561322,"endHours":17.470210882714206,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:28","end":"19:12","startHours":17.470210882714206,"endHours":19.193989115561322,"quality":"inauspicious"},{"name":"Śubha","start":"19:12","end":"20:55","startHours":19.193989115561322,"endHours":20.91776734840844,"quality":"auspicious"},{"name":"Roga","start":"20:55","end":"22:38","startHours":20.91776734840844,"endHours":22.641545581255556,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:22","startHours":22.641545581255556,"endHours":24.365323814102677,"quality":"inauspicious"},{"name":"Chala","start":"00:22","end":"02:05","startHours":24.365323814102677,"endHours":26.089102046949794,"quality":"neutral"},{"name":"Labha","start":"02:05","end":"03:49","startHours":26.089102046949794,"endHours":27.81288027979691,"quality":"auspicious"},{"name":"Amṛta","start":"03:49","end":"05:32","startHours":27.81288027979691,"endHours":29.53665851264403,"quality":"auspicious"},{"name":"Kāla","start":"05:32","end":"07:16","startHours":29.53665851264403,"endHours":31.26043674549115,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.2604367454911465,"endHours":8.260436745491146,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.260436745491146,"endHours":9.260436745491146,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.260436745491146,"endHours":10.260436745491146,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.260436745491146,"endHours":11.260436745491146,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.260436745491146,"endHours":12.260436745491146,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.260436745491146,"endHours":13.260436745491146,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.260436745491146,"endHours":14.260436745491146,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.260436745491146,"endHours":15.260436745491146,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.260436745491146,"endHours":16.26043674549115,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.26043674549115,"endHours":17.26043674549115,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.26043674549115,"endHours":18.26043674549115,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.26043674549115,"endHours":19.26043674549115,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.26043674549115,"endHours":20.26043674549115,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.26043674549115,"endHours":21.26043674549115,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.26043674549115,"endHours":22.26043674549115,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.26043674549115,"endHours":23.26043674549115,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.26043674549115,"endHours":24.26043674549115,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.26043674549115,"endHours":25.26043674549115,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.26043674549115,"endHours":26.26043674549115,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.26043674549115,"endHours":27.26043674549115,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.26043674549115,"endHours":28.26043674549115,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.26043674549115,"endHours":29.26043674549115,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.26043674549115,"endHours":30.26043674549115,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.26043674549115,"endHours":31.26043674549115,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.89634174975222,"eotMinutes":-5.361428846160681,"ayanamsa":23.6089}},"calendars":{"vikram_samvat":2039,"vikram_samvatsara":"Yuva","saka_samvat":1904,"saka_samvatsara":"Dundubhi","bengali_samvat":1389,"malayalam_era":1158,"nanakshahi_year":513,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Saptamī · Vikram 2039 Yuva · Śaka 1904 Dundubhi"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 July 13, 1982 CE · Perth, Australia · Vidhyamitra","description":"July 13, 1982 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 07:16, sūryāsta 17:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1982-07-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1982-07-13","sa":"https://sa.vidhyamitra.com/city/perth/1982-07-13","hi":"https://hi.vidhyamitra.com/city/perth/1982-07-13","x-default":"https://vidhyamitra.com/city/perth/1982-07-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T12:30:06.906Z","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":"2026-05-18T12:30:06.906Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T12:30:06.906Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}