{"id":"vidhyamitra:city-day:perth:1840-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1840-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1840-01-20","date_display":"January 20, 1840 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":1840,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393124.770833,"kali_year":4941,"ahargana":1804659.2708,"sun":{"sidereal_longitude":277.8099,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":112.3143,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.5043,"elapsed_within_tithi_degrees":2.5043},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.3143,"elapsed_within_degrees":5.6476},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.1242},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1840,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2393124.770833,"ahargana":1804659.2708,"kali_year":4941,"ayanamsa_lahiri":21.6186,"grahas":{"sun":{"sidereal_longitude":277.4947930000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":110.766393,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":2.1215},"mars":{"sidereal_longitude":303.90979300000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":258.605093,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":206.17049299999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":235.68229300000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":238.15299299999992,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":320.4672,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":140.4672,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1840,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393124.770833,"kali_year":4941,"ahargana":1804659.2708,"sun":{"sidereal_longitude":277.8099,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":112.3143,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.5043,"elapsed_within_tithi_degrees":2.5043},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.3143,"elapsed_within_degrees":5.6476},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":30.1242},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.122,"elongation":165.496},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.122,"opposition_distance":14.504}},"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":"05:30","sunsetLocal":"19:25","solarNoonLocal":"12:28","dayLengthHours":13.925505484184404,"dayLengthDisplay":"13 Hours 55 Mins 32 Secs","nightLengthDisplay":"10 Hours 04 Mins 28 Secs","moonriseLocal":"20:02","moonsetLocal":"06:39","rahuKala":{"name":"Rāhu Kāla","start":"07:14","end":"08:59","startHours":7.2366404990513375,"endHours":8.977328684574388,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:43","end":"12:28","startHours":10.718016870097438,"endHours":12.458705055620488,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:12","end":"15:56","startHours":14.19939324114354,"endHours":15.94008142666659,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:13","startHours":8.745236926504647,"endHours":9.209420442644127,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:27","startHours":6.076181708702637,"endHours":6.447528521614221,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:55","startHours":11.994521539481008,"endHours":12.922888571759968,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:34","startHours":3.6392182489703666,"endHours":4.567585281249326,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:20","end":"05:30","startHours":4.335493523179586,"endHours":5.495952313528287,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.779622636317889,"endHours":15.707989668596849,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.22145779771269,"endHours":19.62145779771269,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.42145779771269,"endHours":20.00168719288704,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.17145779771269,"endHours":20.92145779771269,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:55","startHours":23.994521539481006,"endHours":24.92288857175997,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:30","end":"07:14","startHours":5.495952313528287,"endHours":7.2366404990513375,"quality":"auspicious"},{"name":"Kāla","start":"07:14","end":"08:59","startHours":7.2366404990513375,"endHours":8.977328684574388,"quality":"inauspicious"},{"name":"Śubha","start":"08:59","end":"10:43","startHours":8.977328684574388,"endHours":10.718016870097438,"quality":"auspicious"},{"name":"Roga","start":"10:43","end":"12:28","startHours":10.718016870097438,"endHours":12.458705055620488,"quality":"inauspicious"},{"name":"Udveg","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.19939324114354,"quality":"inauspicious"},{"name":"Chala","start":"14:12","end":"15:56","startHours":14.19939324114354,"endHours":15.94008142666659,"quality":"neutral"},{"name":"Labha","start":"15:56","end":"17:41","startHours":15.94008142666659,"endHours":17.680769612189643,"quality":"auspicious"},{"name":"Amṛta","start":"17:41","end":"19:25","startHours":17.680769612189643,"endHours":19.42145779771269,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:25","end":"20:41","startHours":19.42145779771269,"endHours":20.68076961218964,"quality":"neutral"},{"name":"Labha","start":"20:41","end":"21:56","startHours":20.68076961218964,"endHours":21.94008142666659,"quality":"auspicious"},{"name":"Amṛta","start":"21:56","end":"23:12","startHours":21.94008142666659,"endHours":23.19939324114354,"quality":"auspicious"},{"name":"Kāla","start":"23:12","end":"00:28","startHours":23.19939324114354,"endHours":24.458705055620488,"quality":"inauspicious"},{"name":"Śubha","start":"00:28","end":"01:43","startHours":24.458705055620488,"endHours":25.718016870097436,"quality":"auspicious"},{"name":"Roga","start":"01:43","end":"02:59","startHours":25.718016870097436,"endHours":26.97732868457439,"quality":"inauspicious"},{"name":"Udveg","start":"02:59","end":"04:14","startHours":26.97732868457439,"endHours":28.236640499051337,"quality":"inauspicious"},{"name":"Chala","start":"04:14","end":"05:30","startHours":28.236640499051337,"endHours":29.495952313528285,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.495952313528287,"endHours":6.495952313528287,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.495952313528287,"endHours":7.495952313528287,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.495952313528287,"endHours":8.495952313528287,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.495952313528287,"endHours":9.495952313528287,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.495952313528287,"endHours":10.495952313528287,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.495952313528287,"endHours":11.495952313528287,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.495952313528287,"endHours":12.495952313528287,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.495952313528287,"endHours":13.495952313528287,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.495952313528287,"endHours":14.495952313528287,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.495952313528287,"endHours":15.495952313528287,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.495952313528287,"endHours":16.495952313528285,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.495952313528285,"endHours":17.495952313528285,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.495952313528285,"endHours":18.495952313528285,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.495952313528285,"endHours":19.495952313528285,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.495952313528285,"endHours":20.495952313528285,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.495952313528285,"endHours":21.495952313528285,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.495952313528285,"endHours":22.495952313528285,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.495952313528285,"endHours":23.495952313528285,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.495952313528285,"endHours":24.495952313528285,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.495952313528285,"endHours":25.495952313528285,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.495952313528285,"endHours":26.495952313528285,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.495952313528285,"endHours":27.495952313528285,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.495952313528285,"endHours":28.495952313528285,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.495952313528285,"endHours":29.495952313528285,"planetary_lord":"Venus"}],"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","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.3334016358524,"eotMinutes":-10.9643033372293,"ayanamsa":21.6186}},"calendars":{"vikram_samvat":1897,"vikram_samvatsara":"Pramādī","saka_samvat":1762,"saka_samvatsara":"Śārvarī","bengali_samvat":1247,"malayalam_era":1016,"nanakshahi_year":371,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Dvitīyā · Vikram 1897 Pramādī · Śaka 1762 Śārvarī"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 January 20, 1840 CE · Perth, Australia · Vidhyamitra","description":"January 20, 1840 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:30, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1840-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1840-01-20","sa":"https://sa.vidhyamitra.com/city/perth/1840-01-20","hi":"https://hi.vidhyamitra.com/city/perth/1840-01-20","x-default":"https://vidhyamitra.com/city/perth/1840-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T12:58:43.553Z","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":"2026-06-03T12:58:43.553Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T12:58:43.553Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}