{"id":"vidhyamitra:city-day:perth:2085-01-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2085-01-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2085-01-04","date_display":"January 4, 2085 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":2085,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2482594.770833,"kali_year":5186,"ahargana":1894129.2708,"sun":{"sidereal_longitude":258.9167,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":358.1528,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.236,"elapsed_within_tithi_degrees":3.236},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":358.1528,"elapsed_within_degrees":11.4861},"yoga":{"number":20,"name":"Śiva","sum_longitude":257.0695},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2085,"month":1,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2482594.770833,"ahargana":1894129.2708,"kali_year":5186,"ayanamsa_lahiri":25.0405,"grahas":{"sun":{"sidereal_longitude":259.328581,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":1.5813810000000217,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":4.4535},"mars":{"sidereal_longitude":18.537981000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":245.7855810000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":74.22768099999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":243.35078099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":332.913181,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":259.916,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":79.916,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2085,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2482594.770833,"kali_year":5186,"ahargana":1894129.2708,"sun":{"sidereal_longitude":258.9167,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":358.1528,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":99.236,"elapsed_within_tithi_degrees":3.236},"nakshatra":{"number":27,"name":"Revatī","pada":4,"moon_longitude":358.1528,"elapsed_within_degrees":11.4861},"yoga":{"number":20,"name":"Śiva","sum_longitude":257.0695},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.453,"elongation":99.236},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.453,"opposition_distance":80.764}},"eclipse_window_40days":[{"offset_days":7,"type":"lunar","occurs":true,"moon_latitude":-0.698,"opposition_distance":2.36}]},"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":"05:17","sunsetLocal":"19:26","solarNoonLocal":"12:22","dayLengthHours":14.1597890718747,"dayLengthDisplay":"14 Hours 09 Mins 35 Secs","nightLengthDisplay":"9 Hours 50 Mins 25 Secs","moonriseLocal":"13:34","moonsetLocal":"00:47","rahuKala":{"name":"Rāhu Kāla","start":"14:08","end":"15:54","startHours":14.129672081740106,"endHours":15.899645715724443,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:17","end":"07:03","startHours":5.2798039118184175,"endHours":7.049777545802755,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:49","end":"10:35","startHours":8.819751179787092,"endHours":10.58972481377143,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:35","end":"09:03","startHours":8.583754695255848,"endHours":9.055747664318337,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:52","end":"06:15","startHours":5.86979512314653,"endHours":6.247389498396522,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:50","startHours":11.887705478693277,"endHours":12.83169141681826,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:24","end":"04:20","startHours":3.3918320355684575,"endHours":4.3358179736934375,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:17","startHours":4.099821489162192,"endHours":5.2798039118184175,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:40","startHours":14.719663293068217,"endHours":15.663649231193197,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.239592983693118,"endHours":19.639592983693117,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:02","startHours":19.439592983693117,"endHours":20.02958419502123,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.189592983693117,"endHours":20.939592983693117,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:50","startHours":23.887705478693277,"endHours":24.83169141681826,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:17","end":"07:03","startHours":5.2798039118184175,"endHours":7.049777545802755,"quality":"auspicious"},{"name":"Roga","start":"07:03","end":"08:49","startHours":7.049777545802755,"endHours":8.819751179787092,"quality":"inauspicious"},{"name":"Udveg","start":"08:49","end":"10:35","startHours":8.819751179787092,"endHours":10.58972481377143,"quality":"inauspicious"},{"name":"Chala","start":"10:35","end":"12:22","startHours":10.58972481377143,"endHours":12.359698447755768,"quality":"neutral"},{"name":"Labha","start":"12:22","end":"14:08","startHours":12.359698447755768,"endHours":14.129672081740106,"quality":"auspicious"},{"name":"Amṛta","start":"14:08","end":"15:54","startHours":14.129672081740106,"endHours":15.899645715724443,"quality":"auspicious"},{"name":"Kāla","start":"15:54","end":"17:40","startHours":15.899645715724443,"endHours":17.669619349708782,"quality":"inauspicious"},{"name":"Śubha","start":"17:40","end":"19:26","startHours":17.669619349708782,"endHours":19.439592983693117,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:26","end":"20:40","startHours":19.439592983693117,"endHours":20.66961934970878,"quality":"auspicious"},{"name":"Kāla","start":"20:40","end":"21:54","startHours":20.66961934970878,"endHours":21.899645715724443,"quality":"inauspicious"},{"name":"Śubha","start":"21:54","end":"23:08","startHours":21.899645715724443,"endHours":23.129672081740104,"quality":"auspicious"},{"name":"Roga","start":"23:08","end":"00:22","startHours":23.129672081740104,"endHours":24.35969844775577,"quality":"inauspicious"},{"name":"Udveg","start":"00:22","end":"01:35","startHours":24.35969844775577,"endHours":25.58972481377143,"quality":"inauspicious"},{"name":"Chala","start":"01:35","end":"02:49","startHours":25.58972481377143,"endHours":26.81975117978709,"quality":"neutral"},{"name":"Labha","start":"02:49","end":"04:03","startHours":26.81975117978709,"endHours":28.049777545802755,"quality":"auspicious"},{"name":"Amṛta","start":"04:03","end":"05:17","startHours":28.049777545802755,"endHours":29.27980391181842,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:17","end":"06:17","startHours":5.2798039118184175,"endHours":6.2798039118184175,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:17","end":"07:17","startHours":6.2798039118184175,"endHours":7.2798039118184175,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:17","end":"08:17","startHours":7.2798039118184175,"endHours":8.279803911818417,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:17","end":"09:17","startHours":8.279803911818417,"endHours":9.279803911818417,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:17","end":"10:17","startHours":9.279803911818417,"endHours":10.279803911818417,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:17","end":"11:17","startHours":10.279803911818417,"endHours":11.279803911818417,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:17","end":"12:17","startHours":11.279803911818417,"endHours":12.279803911818417,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:17","end":"13:17","startHours":12.279803911818417,"endHours":13.279803911818417,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:17","end":"14:17","startHours":13.279803911818417,"endHours":14.279803911818417,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:17","end":"15:17","startHours":14.279803911818417,"endHours":15.279803911818417,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:17","end":"16:17","startHours":15.279803911818417,"endHours":16.27980391181842,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:17","end":"17:17","startHours":16.27980391181842,"endHours":17.27980391181842,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:17","end":"18:17","startHours":17.27980391181842,"endHours":18.27980391181842,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:17","end":"19:17","startHours":18.27980391181842,"endHours":19.27980391181842,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:17","end":"20:17","startHours":19.27980391181842,"endHours":20.27980391181842,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:17","end":"21:17","startHours":20.27980391181842,"endHours":21.27980391181842,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:17","end":"22:17","startHours":21.27980391181842,"endHours":22.27980391181842,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:17","end":"23:17","startHours":22.27980391181842,"endHours":23.27980391181842,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:17","end":"00:17","startHours":23.27980391181842,"endHours":24.27980391181842,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:17","end":"01:17","startHours":24.27980391181842,"endHours":25.27980391181842,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:17","end":"02:17","startHours":25.27980391181842,"endHours":26.27980391181842,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:17","end":"03:17","startHours":26.27980391181842,"endHours":27.27980391181842,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:17","end":"04:17","startHours":27.27980391181842,"endHours":28.27980391181842,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:17","end":"05:17","startHours":28.27980391181842,"endHours":29.27980391181842,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","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":"Lumba","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":-22.66176269994754,"eotMinutes":-5.02390686534617,"ayanamsa":25.0405}},"calendars":{"vikram_samvat":2142,"vikram_samvatsara":"Kālayukta","saka_samvat":2007,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1492,"malayalam_era":1261,"nanakshahi_year":616,"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 Navamī · Vikram 2142 Kālayukta · Śaka 2007 Viśvāvasu"},"festivals":[],"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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 4, 2085 CE · Perth, Australia · Vidhyamitra","description":"January 4, 2085 CE for Perth, Australia: Śukla Navamī, sūryodaya 05:17, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2085-01-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2085-01-04","sa":"https://sa.vidhyamitra.com/city/perth/2085-01-04","hi":"https://hi.vidhyamitra.com/city/perth/2085-01-04","x-default":"https://vidhyamitra.com/city/perth/2085-01-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:54:48.327Z","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":"2026-05-31T15:54:48.327Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:54:48.327Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}