{"id":"vidhyamitra:city-day:perth:2121-01-03:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2121-01-03","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2121-01-03","date_display":"January 3, 2121 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":2121,"month":1,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495741.770833,"kali_year":5222,"ahargana":1907276.2708,"sun":{"sidereal_longitude":256.5364,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":68.8271,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.2907,"elapsed_within_tithi_degrees":4.2907},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.8271,"elapsed_within_degrees":2.1604},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.3635},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2121,"month":1,"day":3,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2495741.770833,"ahargana":1907276.2708,"kali_year":5222,"ayanamsa_lahiri":25.5434,"grahas":{"sun":{"sidereal_longitude":257.053369,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":68.26806900000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":2.5469},"mars":{"sidereal_longitude":123.18946900000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":274.956769,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":89.143369,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"venus":{"sidereal_longitude":300.81256899999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":62.81326899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":283.3247,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":103.3247,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2121,"month":1,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2495741.770833,"kali_year":5222,"ahargana":1907276.2708,"sun":{"sidereal_longitude":256.5364,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":68.8271,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.2907,"elapsed_within_tithi_degrees":4.2907},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":68.8271,"elapsed_within_degrees":2.1604},"yoga":{"number":25,"name":"Brahma","sum_longitude":325.3635},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.547,"elongation":172.291},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.547,"opposition_distance":7.709}},"eclipse_window_40days":[{"offset_days":16,"type":"solar","occurs":true,"moon_latitude":-0.923,"elongation":2.346}]},"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":"05:16","sunsetLocal":"19:26","solarNoonLocal":"12:21","dayLengthHours":14.17813411697373,"dayLengthDisplay":"14 Hours 10 Mins 41 Secs","nightLengthDisplay":"9 Hours 49 Mins 19 Secs","moonriseLocal":"18:45","moonsetLocal":"04:47","rahuKala":{"name":"Rāhu Kāla","start":"10:35","end":"12:21","startHours":10.580190249222584,"endHours":12.352457013844301,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:54","end":"17:40","startHours":15.896990543087732,"endHours":17.66925730770945,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:02","end":"08:48","startHours":7.035656719979151,"endHours":8.807923484600867,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:03","startHours":8.571621249317971,"endHours":9.044225719883762,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:51","end":"06:14","startHours":5.854145543564674,"endHours":6.232229120017307,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:50","startHours":11.87985254327851,"endHours":12.825061484410092,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:22","end":"04:19","startHours":3.372972073094271,"endHours":4.318181014225853,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:05","end":"05:16","startHours":4.081878778942958,"endHours":5.263389955357435,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:40","startHours":14.715479366673257,"endHours":15.66068830780484,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.241524072331167,"endHours":19.641524072331165,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:02","startHours":19.441524072331166,"endHours":20.032279660538403,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.191524072331166,"endHours":20.941524072331166,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:50","startHours":23.87985254327851,"endHours":24.825061484410092,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:16","end":"07:02","startHours":5.263389955357435,"endHours":7.035656719979151,"quality":"neutral"},{"name":"Labha","start":"07:02","end":"08:48","startHours":7.035656719979151,"endHours":8.807923484600867,"quality":"auspicious"},{"name":"Amṛta","start":"08:48","end":"10:35","startHours":8.807923484600867,"endHours":10.580190249222584,"quality":"auspicious"},{"name":"Kāla","start":"10:35","end":"12:21","startHours":10.580190249222584,"endHours":12.352457013844301,"quality":"inauspicious"},{"name":"Śubha","start":"12:21","end":"14:07","startHours":12.352457013844301,"endHours":14.124723778466016,"quality":"auspicious"},{"name":"Roga","start":"14:07","end":"15:54","startHours":14.124723778466016,"endHours":15.896990543087732,"quality":"inauspicious"},{"name":"Udveg","start":"15:54","end":"17:40","startHours":15.896990543087732,"endHours":17.66925730770945,"quality":"inauspicious"},{"name":"Chala","start":"17:40","end":"19:26","startHours":17.66925730770945,"endHours":19.441524072331166,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:26","end":"20:40","startHours":19.441524072331166,"endHours":20.66925730770945,"quality":"inauspicious"},{"name":"Udveg","start":"20:40","end":"21:54","startHours":20.66925730770945,"endHours":21.896990543087732,"quality":"inauspicious"},{"name":"Chala","start":"21:54","end":"23:07","startHours":21.896990543087732,"endHours":23.124723778466016,"quality":"neutral"},{"name":"Labha","start":"23:07","end":"00:21","startHours":23.124723778466016,"endHours":24.3524570138443,"quality":"auspicious"},{"name":"Amṛta","start":"00:21","end":"01:35","startHours":24.3524570138443,"endHours":25.580190249222586,"quality":"auspicious"},{"name":"Kāla","start":"01:35","end":"02:48","startHours":25.580190249222586,"endHours":26.80792348460087,"quality":"inauspicious"},{"name":"Śubha","start":"02:48","end":"04:02","startHours":26.80792348460087,"endHours":28.03565671997915,"quality":"auspicious"},{"name":"Roga","start":"04:02","end":"05:16","startHours":28.03565671997915,"endHours":29.263389955357436,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:16","end":"06:16","startHours":5.263389955357435,"endHours":6.263389955357435,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:16","end":"07:16","startHours":6.263389955357435,"endHours":7.263389955357435,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:16","end":"08:16","startHours":7.263389955357435,"endHours":8.263389955357436,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:16","end":"09:16","startHours":8.263389955357436,"endHours":9.263389955357436,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:16","end":"10:16","startHours":9.263389955357436,"endHours":10.263389955357436,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:16","end":"11:16","startHours":10.263389955357436,"endHours":11.263389955357436,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:16","end":"12:16","startHours":11.263389955357436,"endHours":12.263389955357436,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:16","end":"13:16","startHours":12.263389955357436,"endHours":13.263389955357436,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:16","end":"14:16","startHours":13.263389955357436,"endHours":14.263389955357436,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:16","end":"15:16","startHours":14.263389955357436,"endHours":15.263389955357436,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:16","end":"16:16","startHours":15.263389955357436,"endHours":16.263389955357436,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:16","end":"17:16","startHours":16.263389955357436,"endHours":17.263389955357436,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:16","end":"18:16","startHours":17.263389955357436,"endHours":18.263389955357436,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:16","end":"19:16","startHours":18.263389955357436,"endHours":19.263389955357436,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:16","end":"20:16","startHours":19.263389955357436,"endHours":20.263389955357436,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:16","end":"21:16","startHours":20.263389955357436,"endHours":21.263389955357436,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:16","end":"22:16","startHours":21.263389955357436,"endHours":22.263389955357436,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:16","end":"23:16","startHours":22.263389955357436,"endHours":23.263389955357436,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:16","end":"00:16","startHours":23.263389955357436,"endHours":24.263389955357436,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:16","end":"01:16","startHours":24.263389955357436,"endHours":25.263389955357436,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:16","end":"02:16","startHours":25.263389955357436,"endHours":26.263389955357436,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:16","end":"03:16","startHours":26.263389955357436,"endHours":27.263389955357436,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:16","end":"04:16","startHours":27.263389955357436,"endHours":28.263389955357436,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:16","end":"05:16","startHours":28.263389955357436,"endHours":29.263389955357436,"planetary_lord":"Mars"}],"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","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":-22.839974748335457,"eotMinutes":-4.589420830658165,"ayanamsa":25.5434}},"calendars":{"vikram_samvat":2178,"vikram_samvatsara":"Jaya","saka_samvat":2043,"saka_samvatsara":"Vṛṣa","bengali_samvat":1528,"malayalam_era":1297,"nanakshahi_year":652,"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 Pūrṇimā · Vikram 2178 Jaya · Śaka 2043 Vṛṣa"},"festivals":[{"id":"paush-purnima","name":"Pauṣa Pūrṇimā (Śākambharī Devī Jayantī)","name_sanskrit":"पौष पूर्णिमा","tradition":"Pan-Hindu","associated_deity":"Devī Śākambharī","significance":"Manifestation of Devī Śākambharī (vegetation-mother).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":3}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","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 January 3, 2121 CE · Perth, Australia · Vidhyamitra","description":"January 3, 2121 CE for Perth, Australia: Śukla Pūrṇimā, sūryodaya 05:16, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2121-01-03","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2121-01-03","sa":"https://sa.vidhyamitra.com/city/perth/2121-01-03","hi":"https://hi.vidhyamitra.com/city/perth/2121-01-03","x-default":"https://vidhyamitra.com/city/perth/2121-01-03"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:16:33.188Z","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":"2026-05-31T10:16:33.188Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:16:33.188Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}