{"id":"vidhyamitra:city-day:perth:1877-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1877-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1877-02-01","date_display":"February 1, 1877 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":1877,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406651.770833,"kali_year":4978,"ahargana":1818186.2708,"sun":{"sidereal_longitude":290.524,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":146.1125,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":215.5886,"elapsed_within_tithi_degrees":11.5886},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.1125,"elapsed_within_degrees":12.7792},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.6365},"karana":{"half_tithi_index":35,"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":1877,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2406651.770833,"ahargana":1818186.2708,"kali_year":4978,"ayanamsa_lahiri":22.136,"grahas":{"sun":{"sidereal_longitude":290.206762,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":147.73596199999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":-0.186},"mars":{"sidereal_longitude":230.90096199999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":280.845962,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":244.80356200000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"venus":{"sidereal_longitude":268.29536199999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":316.21016199999997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":323.7416,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":143.7416,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":1877,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2406651.770833,"kali_year":4978,"ahargana":1818186.2708,"sun":{"sidereal_longitude":290.524,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":146.1125,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":215.5886,"elapsed_within_tithi_degrees":11.5886},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.1125,"elapsed_within_degrees":12.7792},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.6365},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.186,"elongation":144.411},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.186,"opposition_distance":35.589}},"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":"05:42","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.614321530540716,"dayLengthDisplay":"13 Hours 36 Mins 52 Secs","nightLengthDisplay":"10 Hours 23 Mins 08 Secs","moonriseLocal":"21:08","moonsetLocal":"08:53","rahuKala":{"name":"Rāhu Kāla","start":"14:12","end":"15:54","startHours":14.20591265994085,"endHours":15.90770285125844,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:42","end":"07:24","startHours":5.696961703352903,"endHours":7.398751894670492,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:06","end":"10:48","startHours":9.100542085988081,"endHours":10.802332277305672,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:20","startHours":8.873636727145737,"endHours":9.327447444830426,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:38","startHours":6.264225100458766,"endHours":6.627273674606519,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.050311750938569,"endHours":12.957933186307951,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.881718832614141,"endHours":4.789340267983522,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:42","startHours":4.562434909141176,"endHours":5.696961703352903,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:41","startHours":14.773176057046713,"endHours":15.680797492416094,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.11128323389362,"endHours":19.511283233893618,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.31128323389362,"endHours":19.87854663099948,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.06128323389362,"endHours":20.81128323389362,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.05031175093857,"endHours":24.957933186307947,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:42","end":"07:24","startHours":5.696961703352903,"endHours":7.398751894670492,"quality":"auspicious"},{"name":"Roga","start":"07:24","end":"09:06","startHours":7.398751894670492,"endHours":9.100542085988081,"quality":"inauspicious"},{"name":"Udveg","start":"09:06","end":"10:48","startHours":9.100542085988081,"endHours":10.802332277305672,"quality":"inauspicious"},{"name":"Chala","start":"10:48","end":"12:30","startHours":10.802332277305672,"endHours":12.504122468623262,"quality":"neutral"},{"name":"Labha","start":"12:30","end":"14:12","startHours":12.504122468623262,"endHours":14.20591265994085,"quality":"auspicious"},{"name":"Amṛta","start":"14:12","end":"15:54","startHours":14.20591265994085,"endHours":15.90770285125844,"quality":"auspicious"},{"name":"Kāla","start":"15:54","end":"17:37","startHours":15.90770285125844,"endHours":17.609493042576027,"quality":"inauspicious"},{"name":"Śubha","start":"17:37","end":"19:19","startHours":17.609493042576027,"endHours":19.31128323389362,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:19","end":"20:37","startHours":19.31128323389362,"endHours":20.60949304257603,"quality":"auspicious"},{"name":"Kāla","start":"20:37","end":"21:54","startHours":20.60949304257603,"endHours":21.90770285125844,"quality":"inauspicious"},{"name":"Śubha","start":"21:54","end":"23:12","startHours":21.90770285125844,"endHours":23.20591265994085,"quality":"auspicious"},{"name":"Roga","start":"23:12","end":"00:30","startHours":23.20591265994085,"endHours":24.50412246862326,"quality":"inauspicious"},{"name":"Udveg","start":"00:30","end":"01:48","startHours":24.50412246862326,"endHours":25.802332277305673,"quality":"inauspicious"},{"name":"Chala","start":"01:48","end":"03:06","startHours":25.802332277305673,"endHours":27.10054208598808,"quality":"neutral"},{"name":"Labha","start":"03:06","end":"04:24","startHours":27.10054208598808,"endHours":28.398751894670493,"quality":"auspicious"},{"name":"Amṛta","start":"04:24","end":"05:42","startHours":28.398751894670493,"endHours":29.696961703352905,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.696961703352903,"endHours":6.696961703352903,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.696961703352903,"endHours":7.696961703352903,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.696961703352903,"endHours":8.696961703352903,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.696961703352903,"endHours":9.696961703352903,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.696961703352903,"endHours":10.696961703352903,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.696961703352903,"endHours":11.696961703352903,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.696961703352903,"endHours":12.696961703352903,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.696961703352903,"endHours":13.696961703352903,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.696961703352903,"endHours":14.696961703352903,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.696961703352903,"endHours":15.696961703352903,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.696961703352903,"endHours":16.696961703352905,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.696961703352905,"endHours":17.696961703352905,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.696961703352905,"endHours":18.696961703352905,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.696961703352905,"endHours":19.696961703352905,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.696961703352905,"endHours":20.696961703352905,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.696961703352905,"endHours":21.696961703352905,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.696961703352905,"endHours":22.696961703352905,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.696961703352905,"endHours":23.696961703352905,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.696961703352905,"endHours":24.696961703352905,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.696961703352905,"endHours":25.696961703352905,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.696961703352905,"endHours":26.696961703352905,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.696961703352905,"endHours":27.696961703352905,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.696961703352905,"endHours":28.696961703352905,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.696961703352905,"endHours":29.696961703352905,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.09611014225738,"eotMinutes":-13.689348117395623,"ayanamsa":22.136}},"calendars":{"vikram_samvat":1934,"vikram_samvatsara":"Vikṛti","saka_samvat":1799,"saka_samvatsara":"Īśvara","bengali_samvat":1284,"malayalam_era":1053,"nanakshahi_year":408,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Tṛtīyā · Vikram 1934 Vikṛti · Śaka 1799 Īśvara"},"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":[]},"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 February 1, 1877 CE · Perth, Australia · Vidhyamitra","description":"February 1, 1877 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:42, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1877-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1877-02-01","sa":"https://sa.vidhyamitra.com/city/perth/1877-02-01","hi":"https://hi.vidhyamitra.com/city/perth/1877-02-01","x-default":"https://vidhyamitra.com/city/perth/1877-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:33:47.584Z","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":"2026-05-30T23:33:47.584Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:33:47.584Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}