{"id":"vidhyamitra:city-day:perth:2026-07-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2026-07-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-07-12","date_display":"July 12, 2026 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":2026,"month":7,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461233.770833,"kali_year":5128,"ahargana":1872768.2708,"sun":{"sidereal_longitude":85.0474,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":53.6044,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.557,"elapsed_within_tithi_degrees":4.557},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":53.6044,"elapsed_within_degrees":0.271},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":138.6517},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2026,"month":7,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461233.770833,"ahargana":1872768.2708,"kali_year":5128,"ayanamsa_lahiri":24.2236,"grahas":{"sun":{"sidereal_longitude":85.517628,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"moon":{"sidereal_longitude":51.95312799999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false,"latitude":4.4034},"mars":{"sidereal_longitude":44.762328000000025,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":86.68532800000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":98.13732800000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"venus":{"sidereal_longitude":127.968928,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":350.395128,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":311.7246,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":131.7246,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"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":2026,"month":7,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461233.770833,"kali_year":5128,"ahargana":1872768.2708,"sun":{"sidereal_longitude":85.0474,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":53.6044,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":328.557,"elapsed_within_tithi_degrees":4.557},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":53.6044,"elapsed_within_degrees":0.271},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":138.6517},"karana":{"half_tithi_index":54,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.403,"elongation":31.443},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.403,"opposition_distance":148.557}},"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":"07:16","sunsetLocal":"17:28","solarNoonLocal":"12:22","dayLengthHours":10.201096534020175,"dayLengthDisplay":"10 Hours 12 Mins 04 Secs","nightLengthDisplay":"13 Hours 47 Mins 56 Secs","moonriseLocal":"05:05","moonsetLocal":"15:10","rahuKala":{"name":"Rāhu Kāla","start":"16:11","end":"17:28","startHours":16.188692365708484,"endHours":17.463829432461004,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:22","end":"13:38","startHours":12.363281165450918,"endHours":13.638418232203438,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:55","end":"16:11","startHours":14.913555298955961,"endHours":16.188692365708484,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:59","startHours":9.64298875637887,"endHours":9.983025307512875,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:41","end":"07:58","startHours":7.687778587358336,"endHours":7.95980782826554,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:42","startHours":12.023244614316912,"endHours":12.703317716584923,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:54","end":"06:35","startHours":5.902586693904806,"endHours":6.582659796172817,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:25","end":"07:16","startHours":6.412641520605814,"endHours":7.262732898440829,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:45","startHours":14.063463921120945,"endHours":14.743537023388956,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:16","end":"17:40","startHours":17.263829432461005,"endHours":17.663829432461004,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:28","end":"17:53","startHours":17.463829432461004,"endHours":17.88887512137851,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:13","end":"18:58","startHours":17.213829432461004,"endHours":18.963829432461004,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:42","startHours":24.023244614316912,"endHours":24.703317716584923,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:16","end":"08:32","startHours":7.262732898440829,"endHours":8.537869965193352,"quality":"inauspicious"},{"name":"Chala","start":"08:32","end":"09:49","startHours":8.537869965193352,"endHours":9.813007031945872,"quality":"neutral"},{"name":"Labha","start":"09:49","end":"11:05","startHours":9.813007031945872,"endHours":11.088144098698395,"quality":"auspicious"},{"name":"Amṛta","start":"11:05","end":"12:22","startHours":11.088144098698395,"endHours":12.363281165450918,"quality":"auspicious"},{"name":"Kāla","start":"12:22","end":"13:38","startHours":12.363281165450918,"endHours":13.638418232203438,"quality":"inauspicious"},{"name":"Śubha","start":"13:38","end":"14:55","startHours":13.638418232203438,"endHours":14.913555298955961,"quality":"auspicious"},{"name":"Roga","start":"14:55","end":"16:11","startHours":14.913555298955961,"endHours":16.188692365708484,"quality":"inauspicious"},{"name":"Udveg","start":"16:11","end":"17:28","startHours":16.188692365708484,"endHours":17.463829432461004,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:28","end":"19:11","startHours":17.463829432461004,"endHours":19.188692365708484,"quality":"auspicious"},{"name":"Roga","start":"19:11","end":"20:55","startHours":19.188692365708484,"endHours":20.91355529895596,"quality":"inauspicious"},{"name":"Udveg","start":"20:55","end":"22:38","startHours":20.91355529895596,"endHours":22.63841823220344,"quality":"inauspicious"},{"name":"Chala","start":"22:38","end":"00:22","startHours":22.63841823220344,"endHours":24.363281165450918,"quality":"neutral"},{"name":"Labha","start":"00:22","end":"02:05","startHours":24.363281165450918,"endHours":26.088144098698393,"quality":"auspicious"},{"name":"Amṛta","start":"02:05","end":"03:49","startHours":26.088144098698393,"endHours":27.813007031945872,"quality":"auspicious"},{"name":"Kāla","start":"03:49","end":"05:32","startHours":27.813007031945872,"endHours":29.53786996519335,"quality":"inauspicious"},{"name":"Śubha","start":"05:32","end":"07:16","startHours":29.53786996519335,"endHours":31.26273289844083,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:16","end":"08:16","startHours":7.262732898440829,"endHours":8.262732898440829,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:16","end":"09:16","startHours":8.262732898440829,"endHours":9.262732898440829,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:16","end":"10:16","startHours":9.262732898440829,"endHours":10.262732898440829,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:16","end":"11:16","startHours":10.262732898440829,"endHours":11.262732898440829,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:16","end":"12:16","startHours":11.262732898440829,"endHours":12.262732898440829,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:16","end":"13:16","startHours":12.262732898440829,"endHours":13.262732898440829,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:16","end":"14:16","startHours":13.262732898440829,"endHours":14.262732898440829,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:16","end":"15:16","startHours":14.262732898440829,"endHours":15.262732898440829,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:16","end":"16:16","startHours":15.262732898440829,"endHours":16.26273289844083,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:16","end":"17:16","startHours":16.26273289844083,"endHours":17.26273289844083,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:16","end":"18:16","startHours":17.26273289844083,"endHours":18.26273289844083,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:16","end":"19:16","startHours":18.26273289844083,"endHours":19.26273289844083,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:16","end":"20:16","startHours":19.26273289844083,"endHours":20.26273289844083,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:16","end":"21:16","startHours":20.26273289844083,"endHours":21.26273289844083,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:16","end":"22:16","startHours":21.26273289844083,"endHours":22.26273289844083,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:16","end":"23:16","startHours":22.26273289844083,"endHours":23.26273289844083,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:16","end":"00:16","startHours":23.26273289844083,"endHours":24.26273289844083,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:16","end":"01:16","startHours":24.26273289844083,"endHours":25.26273289844083,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:16","end":"02:16","startHours":25.26273289844083,"endHours":26.26273289844083,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:16","end":"03:16","startHours":26.26273289844083,"endHours":27.26273289844083,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:16","end":"04:16","startHours":27.26273289844083,"endHours":28.26273289844083,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:16","end":"05:16","startHours":28.26273289844083,"endHours":29.26273289844083,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:16","end":"06:16","startHours":29.26273289844083,"endHours":30.26273289844083,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:16","end":"07:16","startHours":30.26273289844083,"endHours":31.26273289844083,"planetary_lord":"Jupiter"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"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":21.98456629672563,"eotMinutes":-5.238869927055064,"ayanamsa":24.2236}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Trayodaśī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"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},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 12, 2026 CE · Perth, Australia · Vidhyamitra","description":"July 12, 2026 CE for Perth, Australia: Kṛṣṇa Trayodaśī, sūryodaya 07:16, sūryāsta 17:28.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2026-07-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2026-07-12","sa":"https://sa.vidhyamitra.com/city/perth/2026-07-12","hi":"https://hi.vidhyamitra.com/city/perth/2026-07-12","x-default":"https://vidhyamitra.com/city/perth/2026-07-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T15:21:49.869Z","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":"2026-05-14T15:21:49.869Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T15:21:49.869Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}