{"id":"vidhyamitra:city-day:perth:1863-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1863-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1863-08-13","date_display":"August 13, 1863 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":1863,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401730.770833,"kali_year":4965,"ahargana":1813265.2708,"sun":{"sidereal_longitude":117.5244,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":100.0148,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.4904,"elapsed_within_tithi_degrees":6.4904},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":100.0148,"elapsed_within_degrees":6.6815},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.5392},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1863,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2401730.770833,"ahargana":1813265.2708,"kali_year":4965,"ayanamsa_lahiri":21.9478,"grahas":{"sun":{"sidereal_longitude":117.80588,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":100.76138000000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":-3.7089},"mars":{"sidereal_longitude":136.37117999999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":129.56777999999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":182.28877999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":162.73458000000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":161.80308000000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":224.4799,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":44.4799,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1863,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2401730.770833,"kali_year":4965,"ahargana":1813265.2708,"sun":{"sidereal_longitude":117.5244,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":100.0148,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.4904,"elapsed_within_tithi_degrees":6.4904},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":100.0148,"elapsed_within_degrees":6.6815},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":217.5392},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.709,"elongation":17.51},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.709,"opposition_distance":162.49}},"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":"06:55","sunsetLocal":"17:47","solarNoonLocal":"12:21","dayLengthHours":10.864419080617544,"dayLengthDisplay":"10 Hours 51 Mins 52 Secs","nightLengthDisplay":"13 Hours 08 Mins 08 Secs","moonriseLocal":"06:01","moonsetLocal":"16:25","rahuKala":{"name":"Rāhu Kāla","start":"13:43","end":"15:04","startHours":13.710044397380782,"endHours":15.068096782457975,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:55","end":"08:17","startHours":6.919782471994817,"endHours":8.27783485707201,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:38","end":"11:00","startHours":9.635887242149202,"endHours":10.993939627226396,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:49","startHours":9.454813590805578,"endHours":9.81696089349283,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:22","end":"07:40","startHours":7.3724666003538815,"endHours":7.6621844425036825,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:43","startHours":11.989844709616339,"endHours":12.714139314990842,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:28","end":"06:12","startHours":5.471193261245811,"endHours":6.195487866620314,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:01","end":"06:55","startHours":6.014414215276688,"endHours":6.919782471994817,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:53","startHours":14.162728525739848,"endHours":14.88702313111435,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:35","end":"17:59","startHours":17.584201552612363,"endHours":17.98420155261236,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:47","end":"18:14","startHours":17.784201552612362,"endHours":18.236885680971426,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:32","end":"19:17","startHours":17.534201552612362,"endHours":19.284201552612362,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:43","startHours":23.98984470961634,"endHours":24.71413931499084,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:55","end":"08:17","startHours":6.919782471994817,"endHours":8.27783485707201,"quality":"auspicious"},{"name":"Roga","start":"08:17","end":"09:38","startHours":8.27783485707201,"endHours":9.635887242149202,"quality":"inauspicious"},{"name":"Udveg","start":"09:38","end":"11:00","startHours":9.635887242149202,"endHours":10.993939627226396,"quality":"inauspicious"},{"name":"Chala","start":"11:00","end":"12:21","startHours":10.993939627226396,"endHours":12.35199201230359,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:43","startHours":12.35199201230359,"endHours":13.710044397380782,"quality":"auspicious"},{"name":"Amṛta","start":"13:43","end":"15:04","startHours":13.710044397380782,"endHours":15.068096782457975,"quality":"auspicious"},{"name":"Kāla","start":"15:04","end":"16:26","startHours":15.068096782457975,"endHours":16.42614916753517,"quality":"inauspicious"},{"name":"Śubha","start":"16:26","end":"17:47","startHours":16.42614916753517,"endHours":17.784201552612362,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:47","end":"19:26","startHours":17.784201552612362,"endHours":19.42614916753517,"quality":"auspicious"},{"name":"Kāla","start":"19:26","end":"21:04","startHours":19.42614916753517,"endHours":21.068096782457978,"quality":"inauspicious"},{"name":"Śubha","start":"21:04","end":"22:43","startHours":21.068096782457978,"endHours":22.710044397380784,"quality":"auspicious"},{"name":"Roga","start":"22:43","end":"00:21","startHours":22.710044397380784,"endHours":24.35199201230359,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"02:00","startHours":24.35199201230359,"endHours":25.993939627226396,"quality":"inauspicious"},{"name":"Chala","start":"02:00","end":"03:38","startHours":25.993939627226396,"endHours":27.635887242149202,"quality":"neutral"},{"name":"Labha","start":"03:38","end":"05:17","startHours":27.635887242149202,"endHours":29.277834857072012,"quality":"auspicious"},{"name":"Amṛta","start":"05:17","end":"06:55","startHours":29.277834857072012,"endHours":30.919782471994818,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:55","end":"07:55","startHours":6.919782471994817,"endHours":7.919782471994817,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:55","end":"08:55","startHours":7.919782471994817,"endHours":8.919782471994818,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:55","end":"09:55","startHours":8.919782471994818,"endHours":9.919782471994818,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:55","end":"10:55","startHours":9.919782471994818,"endHours":10.919782471994818,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:55","end":"11:55","startHours":10.919782471994818,"endHours":11.919782471994818,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:55","end":"12:55","startHours":11.919782471994818,"endHours":12.919782471994818,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:55","end":"13:55","startHours":12.919782471994818,"endHours":13.919782471994818,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:55","end":"14:55","startHours":13.919782471994818,"endHours":14.919782471994818,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:55","end":"15:55","startHours":14.919782471994818,"endHours":15.919782471994818,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:55","end":"16:55","startHours":15.919782471994818,"endHours":16.919782471994818,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:55","end":"17:55","startHours":16.919782471994818,"endHours":17.919782471994818,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:55","end":"18:55","startHours":17.919782471994818,"endHours":18.919782471994818,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:55","end":"19:55","startHours":18.919782471994818,"endHours":19.919782471994818,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:55","end":"20:55","startHours":19.919782471994818,"endHours":20.919782471994818,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:55","end":"21:55","startHours":20.919782471994818,"endHours":21.919782471994818,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:55","end":"22:55","startHours":21.919782471994818,"endHours":22.919782471994818,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:55","end":"23:55","startHours":22.919782471994818,"endHours":23.919782471994818,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:55","end":"00:55","startHours":23.919782471994818,"endHours":24.919782471994818,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:55","end":"01:55","startHours":24.919782471994818,"endHours":25.919782471994818,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:55","end":"02:55","startHours":25.919782471994818,"endHours":26.919782471994818,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:55","end":"03:55","startHours":26.919782471994818,"endHours":27.919782471994818,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:55","end":"04:55","startHours":27.919782471994818,"endHours":28.919782471994818,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:55","end":"05:55","startHours":28.919782471994818,"endHours":29.919782471994818,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:55","end":"06:55","startHours":29.919782471994818,"endHours":30.919782471994818,"planetary_lord":"Moon"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.89005087263923,"eotMinutes":-4.561520738215509,"ayanamsa":21.9478}},"calendars":{"vikram_samvat":1920,"vikram_samvatsara":"Dhātṛ","saka_samvat":1785,"saka_samvatsara":"Rudhirodgāri","bengali_samvat":1270,"malayalam_era":1039,"nanakshahi_year":394,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa (Adhika) Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa (Adhika) Kṛṣṇa Caturdaśī · Vikram 1920 Dhātṛ · Śaka 1785 Rudhirodgāri"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 13, 1863 CE · Perth, Australia · Vidhyamitra","description":"August 13, 1863 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 06:55, sūryāsta 17:47.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1863-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1863-08-13","sa":"https://sa.vidhyamitra.com/city/perth/1863-08-13","hi":"https://hi.vidhyamitra.com/city/perth/1863-08-13","x-default":"https://vidhyamitra.com/city/perth/1863-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T16:15:14.739Z","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":"2026-06-01T16:15:14.739Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T16:15:14.739Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}