{"id":"vidhyamitra:city-day:perth:2161-01-08:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2161-01-08","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2161-01-08","date_display":"January 8, 2161 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":2161,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510356.770833,"kali_year":5262,"ahargana":1921891.2708,"sun":{"sidereal_longitude":261.3168,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":30.2347,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":128.918,"elapsed_within_tithi_degrees":8.918},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":30.2347,"elapsed_within_degrees":3.5681},"yoga":{"number":22,"name":"Sādhya","sum_longitude":291.5515},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":2161,"month":1,"day":8,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2510356.770833,"ahargana":1921891.2708,"kali_year":5262,"ayanamsa_lahiri":26.1023,"grahas":{"sun":{"sidereal_longitude":261.88596800000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":29.472368000000017,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":1.4427},"mars":{"sidereal_longitude":208.48466800000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":264.50906800000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":218.54506800000001,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":298.88416800000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":202.482168,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":228.9517,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":48.9517,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2161,"month":1,"day":8,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510356.770833,"kali_year":5262,"ahargana":1921891.2708,"sun":{"sidereal_longitude":261.3168,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":30.2347,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":128.918,"elapsed_within_tithi_degrees":8.918},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":30.2347,"elapsed_within_degrees":3.5681},"yoga":{"number":22,"name":"Sādhya","sum_longitude":291.5515},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.443,"elongation":128.918},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.443,"opposition_distance":51.082}},"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":"05:20","sunsetLocal":"19:27","solarNoonLocal":"12:23","dayLengthHours":14.115381691538303,"dayLengthDisplay":"14 Hours 06 Mins 55 Secs","nightLengthDisplay":"9 Hours 53 Mins 05 Secs","moonriseLocal":"15:41","moonsetLocal":"02:07","rahuKala":{"name":"Rāhu Kāla","start":"14:09","end":"15:55","startHours":14.152085271997745,"endHours":15.916507983440031,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:20","end":"07:06","startHours":5.329971714786304,"endHours":7.094394426228592,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:52","end":"10:37","startHours":8.85881713767088,"endHours":10.623239849113169,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:37","end":"09:06","startHours":8.623560776145242,"endHours":9.094073499196519,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:55","end":"06:18","startHours":5.9181126186004,"endHours":6.294522797041422,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:51","startHours":11.917149837504178,"endHours":12.858175283606732,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:27","end":"04:23","startHours":3.4479208225811973,"endHours":4.388946268683751,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:09","end":"05:20","startHours":4.153689907158112,"endHours":5.329971714786304,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:41","startHours":14.740226175811841,"endHours":15.681251621914395,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.245353406324607,"endHours":19.645353406324606,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.445353406324607,"endHours":20.033494310138703,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.195353406324607,"endHours":20.945353406324607,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:51","startHours":23.91714983750418,"endHours":24.85817528360673,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:20","end":"07:06","startHours":5.329971714786304,"endHours":7.094394426228592,"quality":"auspicious"},{"name":"Roga","start":"07:06","end":"08:52","startHours":7.094394426228592,"endHours":8.85881713767088,"quality":"inauspicious"},{"name":"Udveg","start":"08:52","end":"10:37","startHours":8.85881713767088,"endHours":10.623239849113169,"quality":"inauspicious"},{"name":"Chala","start":"10:37","end":"12:23","startHours":10.623239849113169,"endHours":12.387662560555455,"quality":"neutral"},{"name":"Labha","start":"12:23","end":"14:09","startHours":12.387662560555455,"endHours":14.152085271997745,"quality":"auspicious"},{"name":"Amṛta","start":"14:09","end":"15:55","startHours":14.152085271997745,"endHours":15.916507983440031,"quality":"auspicious"},{"name":"Kāla","start":"15:55","end":"17:41","startHours":15.916507983440031,"endHours":17.68093069488232,"quality":"inauspicious"},{"name":"Śubha","start":"17:41","end":"19:27","startHours":17.68093069488232,"endHours":19.445353406324607,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:27","end":"20:41","startHours":19.445353406324607,"endHours":20.68093069488232,"quality":"auspicious"},{"name":"Kāla","start":"20:41","end":"21:55","startHours":20.68093069488232,"endHours":21.91650798344003,"quality":"inauspicious"},{"name":"Śubha","start":"21:55","end":"23:09","startHours":21.91650798344003,"endHours":23.15208527199774,"quality":"auspicious"},{"name":"Roga","start":"23:09","end":"00:23","startHours":23.15208527199774,"endHours":24.387662560555455,"quality":"inauspicious"},{"name":"Udveg","start":"00:23","end":"01:37","startHours":24.387662560555455,"endHours":25.62323984911317,"quality":"inauspicious"},{"name":"Chala","start":"01:37","end":"02:52","startHours":25.62323984911317,"endHours":26.85881713767088,"quality":"neutral"},{"name":"Labha","start":"02:52","end":"04:06","startHours":26.85881713767088,"endHours":28.09439442622859,"quality":"auspicious"},{"name":"Amṛta","start":"04:06","end":"05:20","startHours":28.09439442622859,"endHours":29.329971714786303,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.329971714786304,"endHours":6.329971714786304,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.329971714786304,"endHours":7.329971714786304,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.329971714786304,"endHours":8.329971714786303,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.329971714786303,"endHours":9.329971714786303,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.329971714786303,"endHours":10.329971714786303,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.329971714786303,"endHours":11.329971714786303,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.329971714786303,"endHours":12.329971714786303,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.329971714786303,"endHours":13.329971714786303,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.329971714786303,"endHours":14.329971714786303,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.329971714786303,"endHours":15.329971714786303,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.329971714786303,"endHours":16.329971714786303,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.329971714786303,"endHours":17.329971714786303,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.329971714786303,"endHours":18.329971714786303,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.329971714786303,"endHours":19.329971714786303,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.329971714786303,"endHours":20.329971714786303,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.329971714786303,"endHours":21.329971714786303,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.329971714786303,"endHours":22.329971714786303,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.329971714786303,"endHours":23.329971714786303,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.329971714786303,"endHours":24.329971714786303,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.329971714786303,"endHours":25.329971714786303,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.329971714786303,"endHours":26.329971714786303,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.329971714786303,"endHours":27.329971714786303,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.329971714786303,"endHours":28.329971714786303,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.329971714786303,"endHours":29.329971714786303,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"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":-22.227876215135222,"eotMinutes":-6.7017536333273355,"ayanamsa":26.1023}},"calendars":{"vikram_samvat":2218,"vikram_samvatsara":"Bhāva","saka_samvat":2083,"saka_samvatsara":"Durmati","bengali_samvat":1568,"malayalam_era":1337,"nanakshahi_year":692,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","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 Śukla Ekādaśī · Vikram 2218 Bhāva · Śaka 2083 Durmati"},"festivals":[{"id":"putrada-ekadashi","name":"Pauṣa Putradā Ekādaśī","name_sanskrit":"पौष पुत्रदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Ekādaśī granting putra-prāpti.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":4},{"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":[{"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 January 8, 2161 CE · Perth, Australia · Vidhyamitra","description":"January 8, 2161 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:20, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2161-01-08","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2161-01-08","sa":"https://sa.vidhyamitra.com/city/perth/2161-01-08","hi":"https://hi.vidhyamitra.com/city/perth/2161-01-08","x-default":"https://vidhyamitra.com/city/perth/2161-01-08"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T00:01:14.601Z","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":"2026-05-31T00:01:14.601Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T00:01:14.601Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}