{"id":"vidhyamitra:city-day:perth:2173-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2173-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2173-12-30","date_display":"December 30, 2173 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":2173,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515095.770833,"kali_year":5275,"ahargana":1926630.2708,"sun":{"sidereal_longitude":251.69,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":193.341,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.651,"elapsed_within_tithi_degrees":1.651},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":193.341,"elapsed_within_degrees":6.6743},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.031},"karana":{"half_tithi_index":50,"name":"Bava"},"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":2173,"month":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515095.770833,"ahargana":1926630.2708,"kali_year":5275,"ayanamsa_lahiri":26.2836,"grahas":{"sun":{"sidereal_longitude":252.37390400000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":192.11110399999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false,"latitude":-2.6104},"mars":{"sidereal_longitude":181.709204,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":269.57720399999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":244.295304,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"venus":{"sidereal_longitude":209.76830399999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":339.484804,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":337.8567,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":157.8567,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"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":2173,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515095.770833,"kali_year":5275,"ahargana":1926630.2708,"sun":{"sidereal_longitude":251.69,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":193.341,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":26,"name":"Ekādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ekādaśī","elongation_degrees":301.651,"elapsed_within_tithi_degrees":1.651},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":193.341,"elapsed_within_degrees":6.6743},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.031},"karana":{"half_tithi_index":50,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.61,"elongation":58.349},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.61,"opposition_distance":121.651}},"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":"05:13","sunsetLocal":"19:26","solarNoonLocal":"12:19","dayLengthHours":14.210591461323284,"dayLengthDisplay":"14 Hours 12 Mins 38 Secs","nightLengthDisplay":"9 Hours 47 Mins 22 Secs","moonriseLocal":"01:39","moonsetLocal":"14:58","rahuKala":{"name":"Rāhu Kāla","start":"14:06","end":"15:53","startHours":14.099012174336615,"endHours":15.875336107002026,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:13","end":"07:00","startHours":5.217392511009562,"endHours":6.993716443674972,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:46","end":"10:33","startHours":8.770040376340383,"endHours":10.546364309005794,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"09:00","startHours":8.533197185318329,"endHours":9.006883567362438,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:11","startHours":5.809500488564699,"endHours":6.188449594199986,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:48","startHours":11.849001859627094,"endHours":12.796374623715312,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:16","startHours":3.322646982833124,"endHours":4.270019746921343,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:02","end":"05:13","startHours":4.0331765558992885,"endHours":5.217392511009562,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.69112015189175,"endHours":15.638492915979969,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.227983972332847,"endHours":19.627983972332846,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.427983972332846,"endHours":20.020091949887984,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.177983972332846,"endHours":20.927983972332846,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:48","startHours":23.84900185962709,"endHours":24.796374623715312,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:13","end":"07:00","startHours":5.217392511009562,"endHours":6.993716443674972,"quality":"auspicious"},{"name":"Roga","start":"07:00","end":"08:46","startHours":6.993716443674972,"endHours":8.770040376340383,"quality":"inauspicious"},{"name":"Udveg","start":"08:46","end":"10:33","startHours":8.770040376340383,"endHours":10.546364309005794,"quality":"inauspicious"},{"name":"Chala","start":"10:33","end":"12:19","startHours":10.546364309005794,"endHours":12.322688241671205,"quality":"neutral"},{"name":"Labha","start":"12:19","end":"14:06","startHours":12.322688241671205,"endHours":14.099012174336615,"quality":"auspicious"},{"name":"Amṛta","start":"14:06","end":"15:53","startHours":14.099012174336615,"endHours":15.875336107002026,"quality":"auspicious"},{"name":"Kāla","start":"15:53","end":"17:39","startHours":15.875336107002026,"endHours":17.651660039667433,"quality":"inauspicious"},{"name":"Śubha","start":"17:39","end":"19:26","startHours":17.651660039667433,"endHours":19.427983972332846,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:26","end":"20:39","startHours":19.427983972332846,"endHours":20.651660039667437,"quality":"auspicious"},{"name":"Kāla","start":"20:39","end":"21:53","startHours":20.651660039667437,"endHours":21.875336107002024,"quality":"inauspicious"},{"name":"Śubha","start":"21:53","end":"23:06","startHours":21.875336107002024,"endHours":23.099012174336615,"quality":"auspicious"},{"name":"Roga","start":"23:06","end":"00:19","startHours":23.099012174336615,"endHours":24.322688241671205,"quality":"inauspicious"},{"name":"Udveg","start":"00:19","end":"01:33","startHours":24.322688241671205,"endHours":25.546364309005796,"quality":"inauspicious"},{"name":"Chala","start":"01:33","end":"02:46","startHours":25.546364309005796,"endHours":26.770040376340383,"quality":"neutral"},{"name":"Labha","start":"02:46","end":"04:00","startHours":26.770040376340383,"endHours":27.993716443674973,"quality":"auspicious"},{"name":"Amṛta","start":"04:00","end":"05:13","startHours":27.993716443674973,"endHours":29.217392511009564,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:13","end":"06:13","startHours":5.217392511009562,"endHours":6.217392511009562,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:13","end":"07:13","startHours":6.217392511009562,"endHours":7.217392511009562,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:13","end":"08:13","startHours":7.217392511009562,"endHours":8.217392511009562,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:13","end":"09:13","startHours":8.217392511009562,"endHours":9.217392511009562,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:13","end":"10:13","startHours":9.217392511009562,"endHours":10.217392511009562,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:13","end":"11:13","startHours":10.217392511009562,"endHours":11.217392511009562,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:13","end":"12:13","startHours":11.217392511009562,"endHours":12.217392511009562,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:13","end":"13:13","startHours":12.217392511009562,"endHours":13.217392511009562,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:13","end":"14:13","startHours":13.217392511009562,"endHours":14.217392511009562,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:13","end":"15:13","startHours":14.217392511009562,"endHours":15.217392511009562,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:13","end":"16:13","startHours":15.217392511009562,"endHours":16.217392511009564,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:13","end":"17:13","startHours":16.217392511009564,"endHours":17.217392511009564,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:13","end":"18:13","startHours":17.217392511009564,"endHours":18.217392511009564,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:13","end":"19:13","startHours":18.217392511009564,"endHours":19.217392511009564,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:13","end":"20:13","startHours":19.217392511009564,"endHours":20.217392511009564,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:13","end":"21:13","startHours":20.217392511009564,"endHours":21.217392511009564,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:13","end":"22:13","startHours":21.217392511009564,"endHours":22.217392511009564,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:13","end":"23:13","startHours":22.217392511009564,"endHours":23.217392511009564,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:13","end":"00:13","startHours":23.217392511009564,"endHours":24.217392511009564,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:13","end":"01:13","startHours":24.217392511009564,"endHours":25.217392511009564,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:13","end":"02:13","startHours":25.217392511009564,"endHours":26.217392511009564,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:13","end":"03:13","startHours":26.217392511009564,"endHours":27.217392511009564,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:13","end":"04:13","startHours":27.217392511009564,"endHours":28.217392511009564,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:13","end":"05:13","startHours":28.217392511009564,"endHours":29.217392511009564,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Dhūmra","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.153798479839867,"eotMinutes":-2.803294500272213,"ayanamsa":26.2836}},"calendars":{"vikram_samvat":2230,"vikram_samvatsara":"Vyaya","saka_samvat":2095,"saka_samvatsara":"Śrīmukha","bengali_samvat":1580,"malayalam_era":1349,"nanakshahi_year":704,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Ekādaśī · Vikram 2230 Vyaya · Śaka 2095 Śrīmukha"},"festivals":[{"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":"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 December 30, 2173 CE · Perth, Australia · Vidhyamitra","description":"December 30, 2173 CE for Perth, Australia: Kṛṣṇa Ekādaśī, sūryodaya 05:13, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2173-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2173-12-30","sa":"https://sa.vidhyamitra.com/city/perth/2173-12-30","hi":"https://hi.vidhyamitra.com/city/perth/2173-12-30","x-default":"https://vidhyamitra.com/city/perth/2173-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T19:24:57.634Z","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":"2026-06-01T19:24:57.634Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T19:24:57.634Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}