{"id":"vidhyamitra:city-day:perth:1857-07-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1857-07-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1857-07-18","date_display":"July 18, 1857 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":1857,"month":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2399513.770833,"kali_year":4959,"ahargana":1811048.2708,"sun":{"sidereal_longitude":93.3175,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":52.2262,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.9087,"elapsed_within_tithi_degrees":6.9087},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":52.2262,"elapsed_within_degrees":12.2262},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.5437},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1857,"month":7,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2399513.770833,"ahargana":1811048.2708,"kali_year":4959,"ayanamsa_lahiri":21.863,"grahas":{"sun":{"sidereal_longitude":93.43788599999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":50.22898599999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false,"latitude":4.2356},"mars":{"sidereal_longitude":83.97728599999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":87.923386,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":21.813086,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":49.735386000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":88.12088599999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":341.9472,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":161.9472,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"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":1857,"month":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2399513.770833,"kali_year":4959,"ahargana":1811048.2708,"sun":{"sidereal_longitude":93.3175,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":52.2262,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":318.9087,"elapsed_within_tithi_degrees":6.9087},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4,"moon_longitude":52.2262,"elapsed_within_degrees":12.2262},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":145.5437},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.236,"elongation":41.091},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.236,"opposition_distance":138.909}},"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":"07:14","sunsetLocal":"17:31","solarNoonLocal":"12:22","dayLengthHours":10.290014876423273,"dayLengthDisplay":"10 Hours 17 Mins 24 Secs","nightLengthDisplay":"13 Hours 42 Mins 36 Secs","moonriseLocal":"04:26","moonsetLocal":"14:34","rahuKala":{"name":"Rāhu Kāla","start":"09:48","end":"11:05","startHours":9.801061549569331,"endHours":11.087313409122242,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"14:57","startHours":13.65981712822806,"endHours":14.946068987780968,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:31","startHours":7.228557830463513,"endHours":8.514809690016422,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:58","startHours":9.629561301628943,"endHours":9.97256179750972,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:56","startHours":7.657308450314483,"endHours":7.931708847019103,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.030564772794374,"endHours":12.716565764555927,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:51","end":"06:33","startHours":5.85655584694041,"endHours":6.542556838701962,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:22","end":"07:14","startHours":6.371056590761574,"endHours":7.228557830463513,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:46","startHours":14.08856774807903,"endHours":14.77456873984058,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.318572706886787,"endHours":17.718572706886786,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:57","startHours":17.518572706886786,"endHours":17.947323326737756,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.268572706886786,"endHours":19.018572706886786,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.030564772794374,"endHours":24.716565764555927,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:31","startHours":7.228557830463513,"endHours":8.514809690016422,"quality":"inauspicious"},{"name":"Śubha","start":"08:31","end":"09:48","startHours":8.514809690016422,"endHours":9.801061549569331,"quality":"auspicious"},{"name":"Roga","start":"09:48","end":"11:05","startHours":9.801061549569331,"endHours":11.087313409122242,"quality":"inauspicious"},{"name":"Udveg","start":"11:05","end":"12:22","startHours":11.087313409122242,"endHours":12.37356526867515,"quality":"inauspicious"},{"name":"Chala","start":"12:22","end":"13:40","startHours":12.37356526867515,"endHours":13.65981712822806,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"14:57","startHours":13.65981712822806,"endHours":14.946068987780968,"quality":"auspicious"},{"name":"Amṛta","start":"14:57","end":"16:14","startHours":14.946068987780968,"endHours":16.232320847333877,"quality":"auspicious"},{"name":"Kāla","start":"16:14","end":"17:31","startHours":16.232320847333877,"endHours":17.518572706886786,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:31","end":"19:14","startHours":17.518572706886786,"endHours":19.232320847333877,"quality":"auspicious"},{"name":"Amṛta","start":"19:14","end":"20:57","startHours":19.232320847333877,"endHours":20.94606898778097,"quality":"auspicious"},{"name":"Kāla","start":"20:57","end":"22:40","startHours":20.94606898778097,"endHours":22.65981712822806,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:22","startHours":22.65981712822806,"endHours":24.37356526867515,"quality":"auspicious"},{"name":"Roga","start":"00:22","end":"02:05","startHours":24.37356526867515,"endHours":26.08731340912224,"quality":"inauspicious"},{"name":"Udveg","start":"02:05","end":"03:48","startHours":26.08731340912224,"endHours":27.801061549569333,"quality":"inauspicious"},{"name":"Chala","start":"03:48","end":"05:31","startHours":27.801061549569333,"endHours":29.51480969001642,"quality":"neutral"},{"name":"Labha","start":"05:31","end":"07:14","startHours":29.51480969001642,"endHours":31.228557830463515,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.228557830463513,"endHours":8.228557830463513,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.228557830463513,"endHours":9.228557830463513,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.228557830463513,"endHours":10.228557830463513,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.228557830463513,"endHours":11.228557830463513,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.228557830463513,"endHours":12.228557830463513,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.228557830463513,"endHours":13.228557830463513,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.228557830463513,"endHours":14.228557830463513,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.228557830463513,"endHours":15.228557830463513,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.228557830463513,"endHours":16.228557830463515,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.228557830463515,"endHours":17.228557830463515,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.228557830463515,"endHours":18.228557830463515,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.228557830463515,"endHours":19.228557830463515,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.228557830463515,"endHours":20.228557830463515,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.228557830463515,"endHours":21.228557830463515,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.228557830463515,"endHours":22.228557830463515,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.228557830463515,"endHours":23.228557830463515,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.228557830463515,"endHours":24.228557830463515,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.228557830463515,"endHours":25.228557830463515,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.228557830463515,"endHours":26.228557830463515,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.228557830463515,"endHours":27.228557830463515,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.228557830463515,"endHours":28.228557830463515,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.228557830463515,"endHours":29.228557830463515,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.228557830463515,"endHours":30.228557830463515,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.228557830463515,"endHours":31.228557830463515,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.074426068984174,"eotMinutes":-5.85591612050904,"ayanamsa":21.863}},"calendars":{"vikram_samvat":1914,"vikram_samvatsara":"Pramoda","saka_samvat":1779,"saka_samvatsara":"Piṅgala","bengali_samvat":1264,"malayalam_era":1033,"nanakshahi_year":388,"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 1914 Pramoda · Śaka 1779 Piṅgala"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","relevance":0.5}]},"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 18, 1857 CE · Perth, Australia · Vidhyamitra","description":"July 18, 1857 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 07:14, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1857-07-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1857-07-18","sa":"https://sa.vidhyamitra.com/city/perth/1857-07-18","hi":"https://hi.vidhyamitra.com/city/perth/1857-07-18","x-default":"https://vidhyamitra.com/city/perth/1857-07-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T07:59:28.025Z","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":"2026-06-02T07:59:28.025Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T07:59:28.025Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}