{"id":"vidhyamitra:city-day:perth:1818-07-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1818-07-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1818-07-29","date_display":"July 29, 1818 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":1818,"month":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385279.770833,"kali_year":4920,"ahargana":1796814.2708,"sun":{"sidereal_longitude":103.8449,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":56.1305,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":312.2856,"elapsed_within_tithi_degrees":0.2856},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.1305,"elapsed_within_degrees":2.7972},"yoga":{"number":12,"name":"Dhruva","sum_longitude":159.9754},"karana":{"half_tithi_index":52,"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":1818,"month":7,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2385279.770833,"ahargana":1796814.2708,"kali_year":4920,"ayanamsa_lahiri":21.3186,"grahas":{"sun":{"sidereal_longitude":103.93962899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"moon":{"sidereal_longitude":57.88092899999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":2.8906},"mars":{"sidereal_longitude":142.13432899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":118.90112899999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":255.650129,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":141.59152899999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":328.012529,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":16.1331,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":196.1331,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":1818,"month":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2385279.770833,"kali_year":4920,"ahargana":1796814.2708,"sun":{"sidereal_longitude":103.8449,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":56.1305,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":312.2856,"elapsed_within_tithi_degrees":0.2856},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.1305,"elapsed_within_degrees":2.7972},"yoga":{"number":12,"name":"Dhruva","sum_longitude":159.9754},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.891,"elongation":47.714},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.891,"opposition_distance":132.286}},"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":"07:08","sunsetLocal":"17:37","solarNoonLocal":"12:23","dayLengthHours":10.49257593613165,"dayLengthDisplay":"10 Hours 29 Mins 33 Secs","nightLengthDisplay":"13 Hours 30 Mins 27 Secs","moonriseLocal":"04:17","moonsetLocal":"14:20","rahuKala":{"name":"Rāhu Kāla","start":"12:23","end":"13:41","startHours":12.378427606759104,"endHours":13.689999598775561,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:27","end":"09:45","startHours":8.443711630709736,"endHours":9.755283622726193,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:04","end":"12:23","startHours":11.066855614742648,"endHours":12.378427606759104,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.580407357123997,"endHours":9.930159888328387,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:51","startHours":7.569330302698765,"endHours":7.849132327662275,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:44","startHours":12.028675075554716,"endHours":12.728180137963491,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:44","end":"06:26","startHours":5.733129513875726,"endHours":6.432634576284502,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:15","end":"07:08","startHours":6.257758310682308,"endHours":7.132139638693279,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:50","startHours":14.127190262781046,"endHours":14.826695325189823,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:25","end":"17:49","startHours":17.42471557482493,"endHours":17.82471557482493,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:37","end":"18:04","startHours":17.62471557482493,"endHours":18.061906238830414,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:22","end":"19:07","startHours":17.37471557482493,"endHours":19.12471557482493,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:44","startHours":24.028675075554716,"endHours":24.72818013796349,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:08","end":"08:27","startHours":7.132139638693279,"endHours":8.443711630709736,"quality":"auspicious"},{"name":"Amṛta","start":"08:27","end":"09:45","startHours":8.443711630709736,"endHours":9.755283622726193,"quality":"auspicious"},{"name":"Kāla","start":"09:45","end":"11:04","startHours":9.755283622726193,"endHours":11.066855614742648,"quality":"inauspicious"},{"name":"Śubha","start":"11:04","end":"12:23","startHours":11.066855614742648,"endHours":12.378427606759104,"quality":"auspicious"},{"name":"Roga","start":"12:23","end":"13:41","startHours":12.378427606759104,"endHours":13.689999598775561,"quality":"inauspicious"},{"name":"Udveg","start":"13:41","end":"15:00","startHours":13.689999598775561,"endHours":15.001571590792018,"quality":"inauspicious"},{"name":"Chala","start":"15:00","end":"16:19","startHours":15.001571590792018,"endHours":16.313143582808472,"quality":"neutral"},{"name":"Labha","start":"16:19","end":"17:37","startHours":16.313143582808472,"endHours":17.62471557482493,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:37","end":"19:19","startHours":17.62471557482493,"endHours":19.313143582808472,"quality":"inauspicious"},{"name":"Chala","start":"19:19","end":"21:00","startHours":19.313143582808472,"endHours":21.001571590792018,"quality":"neutral"},{"name":"Labha","start":"21:00","end":"22:41","startHours":21.001571590792018,"endHours":22.68999959877556,"quality":"auspicious"},{"name":"Amṛta","start":"22:41","end":"00:23","startHours":22.68999959877556,"endHours":24.378427606759104,"quality":"auspicious"},{"name":"Kāla","start":"00:23","end":"02:04","startHours":24.378427606759104,"endHours":26.066855614742646,"quality":"inauspicious"},{"name":"Śubha","start":"02:04","end":"03:45","startHours":26.066855614742646,"endHours":27.75528362272619,"quality":"auspicious"},{"name":"Roga","start":"03:45","end":"05:27","startHours":27.75528362272619,"endHours":29.443711630709736,"quality":"inauspicious"},{"name":"Udveg","start":"05:27","end":"07:08","startHours":29.443711630709736,"endHours":31.13213963869328,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:08","end":"08:08","startHours":7.132139638693279,"endHours":8.132139638693278,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:08","end":"09:08","startHours":8.132139638693278,"endHours":9.132139638693278,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:08","end":"10:08","startHours":9.132139638693278,"endHours":10.132139638693278,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:08","end":"11:08","startHours":10.132139638693278,"endHours":11.132139638693278,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:08","end":"12:08","startHours":11.132139638693278,"endHours":12.132139638693278,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:08","end":"13:08","startHours":12.132139638693278,"endHours":13.132139638693278,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:08","end":"14:08","startHours":13.132139638693278,"endHours":14.132139638693278,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:08","end":"15:08","startHours":14.132139638693278,"endHours":15.132139638693278,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:08","end":"16:08","startHours":15.132139638693278,"endHours":16.13213963869328,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:08","end":"17:08","startHours":16.13213963869328,"endHours":17.13213963869328,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:08","end":"18:08","startHours":17.13213963869328,"endHours":18.13213963869328,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:08","end":"19:08","startHours":18.13213963869328,"endHours":19.13213963869328,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:08","end":"20:08","startHours":19.13213963869328,"endHours":20.13213963869328,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:08","end":"21:08","startHours":20.13213963869328,"endHours":21.13213963869328,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:08","end":"22:08","startHours":21.13213963869328,"endHours":22.13213963869328,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:08","end":"23:08","startHours":22.13213963869328,"endHours":23.13213963869328,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:08","end":"00:08","startHours":23.13213963869328,"endHours":24.13213963869328,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:08","end":"01:08","startHours":24.13213963869328,"endHours":25.13213963869328,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:08","end":"02:08","startHours":25.13213963869328,"endHours":26.13213963869328,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:08","end":"03:08","startHours":26.13213963869328,"endHours":27.13213963869328,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:08","end":"04:08","startHours":27.13213963869328,"endHours":28.13213963869328,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:08","end":"05:08","startHours":28.13213963869328,"endHours":29.13213963869328,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:08","end":"06:08","startHours":29.13213963869328,"endHours":30.13213963869328,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:08","end":"07:08","startHours":30.13213963869328,"endHours":31.13213963869328,"planetary_lord":"Sun"}],"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":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Mṛtyu","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":18.951755207122634,"eotMinutes":-6.147656405546237,"ayanamsa":21.3186}},"calendars":{"vikram_samvat":1875,"vikram_samvatsara":"Khara","saka_samvat":1740,"saka_samvatsara":"Bahudhānya","bengali_samvat":1225,"malayalam_era":994,"nanakshahi_year":349,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Āṣāḍha","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 Kṛṣṇa Dvādaśī · Vikram 1875 Khara · Śaka 1740 Bahudhānya"},"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 July 29, 1818 CE · Perth, Australia · Vidhyamitra","description":"July 29, 1818 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 07:08, sūryāsta 17:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1818-07-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1818-07-29","sa":"https://sa.vidhyamitra.com/city/perth/1818-07-29","hi":"https://hi.vidhyamitra.com/city/perth/1818-07-29","x-default":"https://vidhyamitra.com/city/perth/1818-07-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-06T05:39:23.175Z","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":"2026-06-06T05:39:23.175Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-06T05:39:23.175Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}