{"id":"vidhyamitra:city-day:perth:2177-08-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2177-08-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2177-08-17","date_display":"August 17, 2177 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":2177,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516421.770833,"kali_year":5279,"ahargana":1927956.2708,"sun":{"sidereal_longitude":117.286,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":26.9554,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.6693,"elapsed_within_tithi_degrees":5.6693},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":26.9554,"elapsed_within_degrees":0.2887},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.2414},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2177,"month":8,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2516421.770833,"ahargana":1927956.2708,"kali_year":5279,"ayanamsa_lahiri":26.3343,"grahas":{"sun":{"sidereal_longitude":118.32814100000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":24.945941000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":3.9212},"mars":{"sidereal_longitude":122.940741,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":100.19284099999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":10.900341000000026,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":91.37294099999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":38.98894100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":267.5988,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":87.5988,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","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":2177,"month":8,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2516421.770833,"kali_year":5279,"ahargana":1927956.2708,"sun":{"sidereal_longitude":117.286,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":26.9554,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.6693,"elapsed_within_tithi_degrees":5.6693},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":26.9554,"elapsed_within_degrees":0.2887},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":144.2414},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.921,"elongation":90.331},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.921,"opposition_distance":89.669}},"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":"06:50","sunsetLocal":"17:50","solarNoonLocal":"12:20","dayLengthHours":11.005439562744892,"dayLengthDisplay":"11 Hours 00 Mins 20 Secs","nightLengthDisplay":"12 Hours 59 Mins 40 Secs","moonriseLocal":"00:51","moonsetLocal":"11:23","rahuKala":{"name":"Rāhu Kāla","start":"16:28","end":"17:50","startHours":16.465566195264632,"endHours":17.841246140607744,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:20","end":"13:43","startHours":12.3385263592353,"endHours":13.71420630457841,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:05","end":"16:28","startHours":15.089886249921522,"endHours":16.465566195264632,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:24","end":"09:46","startHours":9.40374247583666,"endHours":9.77059046126149,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:18","end":"07:35","startHours":7.29436655964389,"endHours":7.587844947983753,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:42","startHours":11.97167837381047,"endHours":12.705374344660129,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:22","end":"06:06","startHours":5.368414636163534,"endHours":6.102110607013193,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:55","end":"06:50","startHours":5.918686614300778,"endHours":6.8358065778628525,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:54","startHours":14.172766286359447,"endHours":14.906462257209107,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:38","end":"18:02","startHours":17.641246140607745,"endHours":18.041246140607743,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:50","end":"18:18","startHours":17.841246140607744,"endHours":18.29980612238878,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:35","end":"19:20","startHours":17.591246140607744,"endHours":19.341246140607744,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:42","startHours":23.97167837381047,"endHours":24.70537434466013,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:50","end":"08:13","startHours":6.8358065778628525,"endHours":8.211486523205965,"quality":"inauspicious"},{"name":"Chala","start":"08:13","end":"09:35","startHours":8.211486523205965,"endHours":9.587166468549075,"quality":"neutral"},{"name":"Labha","start":"09:35","end":"10:58","startHours":9.587166468549075,"endHours":10.962846413892187,"quality":"auspicious"},{"name":"Amṛta","start":"10:58","end":"12:20","startHours":10.962846413892187,"endHours":12.3385263592353,"quality":"auspicious"},{"name":"Kāla","start":"12:20","end":"13:43","startHours":12.3385263592353,"endHours":13.71420630457841,"quality":"inauspicious"},{"name":"Śubha","start":"13:43","end":"15:05","startHours":13.71420630457841,"endHours":15.089886249921522,"quality":"auspicious"},{"name":"Roga","start":"15:05","end":"16:28","startHours":15.089886249921522,"endHours":16.465566195264632,"quality":"inauspicious"},{"name":"Udveg","start":"16:28","end":"17:50","startHours":16.465566195264632,"endHours":17.841246140607744,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:50","end":"19:28","startHours":17.841246140607744,"endHours":19.465566195264632,"quality":"auspicious"},{"name":"Roga","start":"19:28","end":"21:05","startHours":19.465566195264632,"endHours":21.08988624992152,"quality":"inauspicious"},{"name":"Udveg","start":"21:05","end":"22:43","startHours":21.08988624992152,"endHours":22.71420630457841,"quality":"inauspicious"},{"name":"Chala","start":"22:43","end":"00:20","startHours":22.71420630457841,"endHours":24.3385263592353,"quality":"neutral"},{"name":"Labha","start":"00:20","end":"01:58","startHours":24.3385263592353,"endHours":25.962846413892187,"quality":"auspicious"},{"name":"Amṛta","start":"01:58","end":"03:35","startHours":25.962846413892187,"endHours":27.587166468549075,"quality":"auspicious"},{"name":"Kāla","start":"03:35","end":"05:13","startHours":27.587166468549075,"endHours":29.211486523205963,"quality":"inauspicious"},{"name":"Śubha","start":"05:13","end":"06:50","startHours":29.211486523205963,"endHours":30.835806577862854,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.8358065778628525,"endHours":7.8358065778628525,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.8358065778628525,"endHours":8.835806577862853,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.835806577862853,"endHours":9.835806577862853,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.835806577862853,"endHours":10.835806577862853,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.835806577862853,"endHours":11.835806577862853,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.835806577862853,"endHours":12.835806577862853,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.835806577862853,"endHours":13.835806577862853,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.835806577862853,"endHours":14.835806577862853,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.835806577862853,"endHours":15.835806577862853,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.835806577862853,"endHours":16.835806577862854,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.835806577862854,"endHours":17.835806577862854,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.835806577862854,"endHours":18.835806577862854,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.835806577862854,"endHours":19.835806577862854,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.835806577862854,"endHours":20.835806577862854,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.835806577862854,"endHours":21.835806577862854,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.835806577862854,"endHours":22.835806577862854,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.835806577862854,"endHours":23.835806577862854,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.835806577862854,"endHours":24.835806577862854,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.835806577862854,"endHours":25.835806577862854,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.835806577862854,"endHours":26.835806577862854,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.835806577862854,"endHours":27.835806577862854,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.835806577862854,"endHours":28.835806577862854,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.835806577862854,"endHours":29.835806577862854,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.835806577862854,"endHours":30.835806577862854,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhūmra","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":13.299748952719112,"eotMinutes":-3.7535815541179196,"ayanamsa":26.3343}},"calendars":{"vikram_samvat":2234,"vikram_samvatsara":"Vikṛti","saka_samvat":2099,"saka_samvatsara":"Īśvara","bengali_samvat":1584,"malayalam_era":1353,"nanakshahi_year":708,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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":"Bhādrapada Kṛṣṇa Aṣṭamī · Vikram 2234 Vikṛti · Śaka 2099 Īśvara"},"festivals":[],"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","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 August 17, 2177 CE · Perth, Australia · Vidhyamitra","description":"August 17, 2177 CE for Perth, Australia: Kṛṣṇa Aṣṭamī, sūryodaya 06:50, sūryāsta 17:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2177-08-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2177-08-17","sa":"https://sa.vidhyamitra.com/city/perth/2177-08-17","hi":"https://hi.vidhyamitra.com/city/perth/2177-08-17","x-default":"https://vidhyamitra.com/city/perth/2177-08-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T05:29:15.155Z","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":"2026-06-01T05:29:15.155Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T05:29:15.155Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}