{"id":"vidhyamitra:city-day:perth:1847-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1847-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1847-01-20","date_display":"January 20, 1847 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":1847,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2395681.770833,"kali_year":4948,"ahargana":1807216.2708,"sun":{"sidereal_longitude":278.0034,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":316.9273,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":38.9239,"elapsed_within_tithi_degrees":2.9239},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":316.9273,"elapsed_within_degrees":10.2607},"yoga":{"number":18,"name":"Varīyān","sum_longitude":234.9307},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1847,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2395681.770833,"ahargana":1807216.2708,"kali_year":4948,"ayanamsa_lahiri":21.7164,"grahas":{"sun":{"sidereal_longitude":277.703396,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":319.588696,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":3.3456},"mars":{"sidereal_longitude":235.330696,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":262.63349600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":47.07829600000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":288.192096,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":309.588296,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":184.985,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":4.985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"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":1847,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2395681.770833,"kali_year":4948,"ahargana":1807216.2708,"sun":{"sidereal_longitude":278.0034,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":316.9273,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":38.9239,"elapsed_within_tithi_degrees":2.9239},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":316.9273,"elapsed_within_degrees":10.2607},"yoga":{"number":18,"name":"Varīyān","sum_longitude":234.9307},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.346,"elongation":38.924},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.346,"opposition_distance":141.076}},"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":13.919245826142765,"dayLengthDisplay":"13 Hours 55 Mins 09 Secs","nightLengthDisplay":"10 Hours 04 Mins 51 Secs","moonriseLocal":"08:54","moonsetLocal":"21:36","rahuKala":{"name":"Rāhu Kāla","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.198610783888332,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:14","end":"08:59","startHours":7.23898787081695,"endHours":8.978893599084795,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:43","end":"12:28","startHours":10.718799327352642,"endHours":12.458705055620488,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:13","startHours":8.746906168649083,"endHours":9.210881029520507,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:27","startHours":6.079050718638387,"endHours":6.450230607335527,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:55","startHours":11.994730194749062,"endHours":12.922679916491914,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:39","end":"04:34","startHours":3.6431826990634026,"endHours":4.571132420806253,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:20","end":"05:30","startHours":4.33914499037054,"endHours":5.4990821425491045,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.778579359977615,"endHours":15.706529081720465,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.21832796869187,"endHours":19.61832796869187,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.41832796869187,"endHours":19.99829654478115,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16832796869187,"endHours":20.91832796869187,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:55","startHours":23.994730194749064,"endHours":24.922679916491912,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:30","end":"07:14","startHours":5.4990821425491045,"endHours":7.23898787081695,"quality":"auspicious"},{"name":"Amṛta","start":"07:14","end":"08:59","startHours":7.23898787081695,"endHours":8.978893599084795,"quality":"auspicious"},{"name":"Kāla","start":"08:59","end":"10:43","startHours":8.978893599084795,"endHours":10.718799327352642,"quality":"inauspicious"},{"name":"Śubha","start":"10:43","end":"12:28","startHours":10.718799327352642,"endHours":12.458705055620488,"quality":"auspicious"},{"name":"Roga","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.198610783888332,"quality":"inauspicious"},{"name":"Udveg","start":"14:12","end":"15:56","startHours":14.198610783888332,"endHours":15.938516512156179,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.938516512156179,"endHours":17.678422240424023,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:25","startHours":17.678422240424023,"endHours":19.41832796869187,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:25","end":"20:41","startHours":19.41832796869187,"endHours":20.678422240424023,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.678422240424023,"endHours":21.938516512156177,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:12","startHours":21.938516512156177,"endHours":23.198610783888334,"quality":"auspicious"},{"name":"Amṛta","start":"23:12","end":"00:28","startHours":23.198610783888334,"endHours":24.458705055620488,"quality":"auspicious"},{"name":"Kāla","start":"00:28","end":"01:43","startHours":24.458705055620488,"endHours":25.71879932735264,"quality":"inauspicious"},{"name":"Śubha","start":"01:43","end":"02:59","startHours":25.71879932735264,"endHours":26.978893599084795,"quality":"auspicious"},{"name":"Roga","start":"02:59","end":"04:14","startHours":26.978893599084795,"endHours":28.23898787081695,"quality":"inauspicious"},{"name":"Udveg","start":"04:14","end":"05:30","startHours":28.23898787081695,"endHours":29.499082142549106,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.4990821425491045,"endHours":6.4990821425491045,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.4990821425491045,"endHours":7.4990821425491045,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.4990821425491045,"endHours":8.499082142549105,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.499082142549105,"endHours":9.499082142549105,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.499082142549105,"endHours":10.499082142549105,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.499082142549105,"endHours":11.499082142549105,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.499082142549105,"endHours":12.499082142549105,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.499082142549105,"endHours":13.499082142549105,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.499082142549105,"endHours":14.499082142549105,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.499082142549105,"endHours":15.499082142549105,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.499082142549105,"endHours":16.499082142549106,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.499082142549106,"endHours":17.499082142549106,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.499082142549106,"endHours":18.499082142549106,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.499082142549106,"endHours":19.499082142549106,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.499082142549106,"endHours":20.499082142549106,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.499082142549106,"endHours":21.499082142549106,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.499082142549106,"endHours":22.499082142549106,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.499082142549106,"endHours":23.499082142549106,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.499082142549106,"endHours":24.499082142549106,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.499082142549106,"endHours":25.499082142549106,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.499082142549106,"endHours":26.499082142549106,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.499082142549106,"endHours":27.499082142549106,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.499082142549106,"endHours":28.499082142549106,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.499082142549106,"endHours":29.499082142549106,"planetary_lord":"Sun"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Śrīvatsa","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":-20.26987825381433,"eotMinutes":-10.9643033372293,"ayanamsa":21.7164}},"calendars":{"vikram_samvat":1904,"vikram_samvatsara":"Raudra","saka_samvat":1769,"saka_samvatsara":"Plavaṅga","bengali_samvat":1254,"malayalam_era":1023,"nanakshahi_year":378,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Caturthī · Vikram 1904 Raudra · Śaka 1769 Plavaṅga"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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, 1847 CE · Perth, Australia · Vidhyamitra","description":"January 20, 1847 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:30, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1847-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1847-01-20","sa":"https://sa.vidhyamitra.com/city/perth/1847-01-20","hi":"https://hi.vidhyamitra.com/city/perth/1847-01-20","x-default":"https://vidhyamitra.com/city/perth/1847-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T20:53:54.626Z","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":"2026-06-02T20:53:54.626Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T20:53:54.626Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}