{"id":"vidhyamitra:city-day:perth:2100-07-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2100-07-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-07-17","date_display":"July 17, 2100 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":2100,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488266.770833,"kali_year":5202,"ahargana":1899801.2708,"sun":{"sidereal_longitude":88.6953,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":212.3749,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.6796,"elapsed_within_tithi_degrees":3.6796},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.3749,"elapsed_within_degrees":12.3749},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.0702},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":2100,"month":7,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488266.770833,"ahargana":1899801.2708,"kali_year":5202,"ayanamsa_lahiri":25.2575,"grahas":{"sun":{"sidereal_longitude":89.37016900000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"moon":{"sidereal_longitude":211.71386900000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":-4.3027},"mars":{"sidereal_longitude":116.26246900000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":71.65136899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":168.90736900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":42.354569000000026,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":173.85506899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":319.3862,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":139.3862,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2100,"month":7,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488266.770833,"kali_year":5202,"ahargana":1899801.2708,"sun":{"sidereal_longitude":88.6953,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":212.3749,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":123.6796,"elapsed_within_tithi_degrees":3.6796},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":212.3749,"elapsed_within_degrees":12.3749},"yoga":{"number":23,"name":"Śubha","sum_longitude":301.0702},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.303,"elongation":123.68},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.303,"opposition_distance":56.32}},"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":10.278253564845933,"dayLengthDisplay":"10 Hours 16 Mins 42 Secs","nightLengthDisplay":"13 Hours 43 Mins 18 Secs","moonriseLocal":"13:38","moonsetLocal":"03:26","rahuKala":{"name":"Rāhu Kāla","start":"09:48","end":"11:05","startHours":9.802629657110163,"endHours":11.087411352715904,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:39","end":"14:57","startHours":13.656974743927387,"endHours":14.94175643953313,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:14","end":"08:31","startHours":7.233066265898679,"endHours":8.51784796150442,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:58","startHours":9.631325431029396,"endHours":9.973933883190927,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:40","end":"07:56","startHours":7.661326831100593,"endHours":7.935413592829818,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.029584596160113,"endHours":12.714801500483176,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:52","end":"06:33","startHours":5.8626324572525546,"endHours":6.547849361575617,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:23","end":"07:14","startHours":6.376545135494851,"endHours":7.233066265898679,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:46","startHours":14.0852353091293,"endHours":14.770452213452362,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:19","end":"17:43","startHours":17.311319830744612,"endHours":17.71131983074461,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:31","end":"17:56","startHours":17.51131983074461,"endHours":17.939580395946525,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:16","end":"19:01","startHours":17.26131983074461,"endHours":19.01131983074461,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.029584596160113,"endHours":24.714801500483176,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:14","end":"08:31","startHours":7.233066265898679,"endHours":8.51784796150442,"quality":"inauspicious"},{"name":"Śubha","start":"08:31","end":"09:48","startHours":8.51784796150442,"endHours":9.802629657110163,"quality":"auspicious"},{"name":"Roga","start":"09:48","end":"11:05","startHours":9.802629657110163,"endHours":11.087411352715904,"quality":"inauspicious"},{"name":"Udveg","start":"11:05","end":"12:22","startHours":11.087411352715904,"endHours":12.372193048321645,"quality":"inauspicious"},{"name":"Chala","start":"12:22","end":"13:39","startHours":12.372193048321645,"endHours":13.656974743927387,"quality":"neutral"},{"name":"Labha","start":"13:39","end":"14:57","startHours":13.656974743927387,"endHours":14.94175643953313,"quality":"auspicious"},{"name":"Amṛta","start":"14:57","end":"16:14","startHours":14.94175643953313,"endHours":16.22653813513887,"quality":"auspicious"},{"name":"Kāla","start":"16:14","end":"17:31","startHours":16.22653813513887,"endHours":17.51131983074461,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:31","end":"19:14","startHours":17.51131983074461,"endHours":19.22653813513887,"quality":"auspicious"},{"name":"Amṛta","start":"19:14","end":"20:57","startHours":19.22653813513887,"endHours":20.94175643953313,"quality":"auspicious"},{"name":"Kāla","start":"20:57","end":"22:39","startHours":20.94175643953313,"endHours":22.656974743927385,"quality":"inauspicious"},{"name":"Śubha","start":"22:39","end":"00:22","startHours":22.656974743927385,"endHours":24.372193048321645,"quality":"auspicious"},{"name":"Roga","start":"00:22","end":"02:05","startHours":24.372193048321645,"endHours":26.087411352715904,"quality":"inauspicious"},{"name":"Udveg","start":"02:05","end":"03:48","startHours":26.087411352715904,"endHours":27.80262965711016,"quality":"inauspicious"},{"name":"Chala","start":"03:48","end":"05:31","startHours":27.80262965711016,"endHours":29.51784796150442,"quality":"neutral"},{"name":"Labha","start":"05:31","end":"07:14","startHours":29.51784796150442,"endHours":31.233066265898678,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:14","end":"08:14","startHours":7.233066265898679,"endHours":8.233066265898678,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:14","end":"09:14","startHours":8.233066265898678,"endHours":9.233066265898678,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:14","end":"10:14","startHours":9.233066265898678,"endHours":10.233066265898678,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:14","end":"11:14","startHours":10.233066265898678,"endHours":11.233066265898678,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:14","end":"12:14","startHours":11.233066265898678,"endHours":12.233066265898678,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:14","end":"13:14","startHours":12.233066265898678,"endHours":13.233066265898678,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:14","end":"14:14","startHours":13.233066265898678,"endHours":14.233066265898678,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:14","end":"15:14","startHours":14.233066265898678,"endHours":15.233066265898678,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:14","end":"16:14","startHours":15.233066265898678,"endHours":16.233066265898678,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:14","end":"17:14","startHours":16.233066265898678,"endHours":17.233066265898678,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:14","end":"18:14","startHours":17.233066265898678,"endHours":18.233066265898678,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:14","end":"19:14","startHours":18.233066265898678,"endHours":19.233066265898678,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:14","end":"20:14","startHours":19.233066265898678,"endHours":20.233066265898678,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:14","end":"21:14","startHours":20.233066265898678,"endHours":21.233066265898678,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:14","end":"22:14","startHours":21.233066265898678,"endHours":22.233066265898678,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:14","end":"23:14","startHours":22.233066265898678,"endHours":23.233066265898678,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:14","end":"00:14","startHours":23.233066265898678,"endHours":24.233066265898678,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:14","end":"01:14","startHours":24.233066265898678,"endHours":25.233066265898678,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:14","end":"02:14","startHours":25.233066265898678,"endHours":26.233066265898678,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:14","end":"03:14","startHours":26.233066265898678,"endHours":27.233066265898678,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:14","end":"04:14","startHours":27.233066265898678,"endHours":28.233066265898678,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:14","end":"05:14","startHours":28.233066265898678,"endHours":29.233066265898678,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:14","end":"06:14","startHours":29.233066265898678,"endHours":30.233066265898678,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:14","end":"07:14","startHours":30.233066265898678,"endHours":31.233066265898678,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.195584397054905,"eotMinutes":-5.773582899298716,"ayanamsa":25.2575}},"calendars":{"vikram_samvat":2157,"vikram_samvatsara":"Śrīmukha","saka_samvat":2022,"saka_samvatsara":"Raudra","bengali_samvat":1507,"malayalam_era":1276,"nanakshahi_year":631,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Ekādaśī · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"festivals":[{"id":"devshayani-ekadashi","name":"Devśayanī Ekādaśī","name_sanskrit":"देवशयनी एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Bhagavān Viṣṇu enters yoga-nidrā; Cāturmāsya begins.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Āṣāḍha"},"precedence":3},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 17, 2100 CE · Perth, Australia · Vidhyamitra","description":"July 17, 2100 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 07:14, sūryāsta 17:31.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2100-07-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2100-07-17","sa":"https://sa.vidhyamitra.com/city/perth/2100-07-17","hi":"https://hi.vidhyamitra.com/city/perth/2100-07-17","x-default":"https://vidhyamitra.com/city/perth/2100-07-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T19:26:29.654Z","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":"2026-06-02T19:26:29.654Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T19:26:29.654Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}