{"id":"vidhyamitra:city-day:perth:1841-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1841-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1841-02-01","date_display":"February 1, 1841 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":1841,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393502.770833,"kali_year":4942,"ahargana":1805037.2708,"sun":{"sidereal_longitude":290.8458,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":44.417,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":113.5712,"elapsed_within_tithi_degrees":5.5712},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":44.417,"elapsed_within_degrees":4.417},"yoga":{"number":26,"name":"Indra","sum_longitude":335.2627},"karana":{"half_tithi_index":18,"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":1841,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2393502.770833,"ahargana":1805037.2708,"kali_year":4942,"ayanamsa_lahiri":21.6331,"grahas":{"sun":{"sidereal_longitude":290.44365000000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":40.87795,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false,"latitude":4.3665},"mars":{"sidereal_longitude":189.10294999999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":289.4883500000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":234.61355000000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":336.57835,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":249.66864999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":300.4389,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":120.4389,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"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":1841,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2393502.770833,"kali_year":4942,"ahargana":1805037.2708,"sun":{"sidereal_longitude":290.8458,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":44.417,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":113.5712,"elapsed_within_tithi_degrees":5.5712},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2,"moon_longitude":44.417,"elapsed_within_degrees":4.417},"yoga":{"number":26,"name":"Indra","sum_longitude":335.2627},"karana":{"half_tithi_index":18,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.366,"elongation":113.571},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.366,"opposition_distance":66.429}},"eclipse_window_40days":[{"offset_days":5,"type":"lunar","occurs":true,"moon_latitude":0.296,"opposition_distance":0.457}]},"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":13.621305613233634,"dayLengthDisplay":"13 Hours 37 Mins 17 Secs","nightLengthDisplay":"10 Hours 22 Mins 43 Secs","moonriseLocal":"14:43","moonsetLocal":"01:01","rahuKala":{"name":"Rāhu Kāla","start":"07:24","end":"09:06","startHours":7.396132863660647,"endHours":9.09879606531485,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:48","end":"12:30","startHours":10.801459266969054,"endHours":12.504122468623258,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:12","end":"15:55","startHours":14.206785670277462,"endHours":15.90944887193167,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:20","startHours":8.87177430509429,"endHours":9.325817825535411,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:16","end":"06:37","startHours":6.261024062557843,"endHours":6.62425887891074,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.050078948182138,"endHours":12.958165989064382,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:53","end":"04:47","startHours":3.8772955802419578,"endHours":4.785382621124199,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:42","startHours":4.5583608609036395,"endHours":5.693469662006442,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:41","startHours":14.774340070828863,"endHours":15.682427111711105,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.114775275240078,"endHours":19.514775275240076,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.314775275240077,"endHours":19.88232967579148,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.064775275240077,"endHours":20.814775275240077,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.050078948182136,"endHours":24.95816598906438,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:42","end":"07:24","startHours":5.693469662006442,"endHours":7.396132863660647,"quality":"auspicious"},{"name":"Kāla","start":"07:24","end":"09:06","startHours":7.396132863660647,"endHours":9.09879606531485,"quality":"inauspicious"},{"name":"Śubha","start":"09:06","end":"10:48","startHours":9.09879606531485,"endHours":10.801459266969054,"quality":"auspicious"},{"name":"Roga","start":"10:48","end":"12:30","startHours":10.801459266969054,"endHours":12.504122468623258,"quality":"inauspicious"},{"name":"Udveg","start":"12:30","end":"14:12","startHours":12.504122468623258,"endHours":14.206785670277462,"quality":"inauspicious"},{"name":"Chala","start":"14:12","end":"15:55","startHours":14.206785670277462,"endHours":15.90944887193167,"quality":"neutral"},{"name":"Labha","start":"15:55","end":"17:37","startHours":15.90944887193167,"endHours":17.612112073585873,"quality":"auspicious"},{"name":"Amṛta","start":"17:37","end":"19:19","startHours":17.612112073585873,"endHours":19.314775275240077,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:19","end":"20:37","startHours":19.314775275240077,"endHours":20.612112073585873,"quality":"neutral"},{"name":"Labha","start":"20:37","end":"21:55","startHours":20.612112073585873,"endHours":21.90944887193167,"quality":"auspicious"},{"name":"Amṛta","start":"21:55","end":"23:12","startHours":21.90944887193167,"endHours":23.206785670277466,"quality":"auspicious"},{"name":"Kāla","start":"23:12","end":"00:30","startHours":23.206785670277466,"endHours":24.504122468623258,"quality":"inauspicious"},{"name":"Śubha","start":"00:30","end":"01:48","startHours":24.504122468623258,"endHours":25.801459266969054,"quality":"auspicious"},{"name":"Roga","start":"01:48","end":"03:06","startHours":25.801459266969054,"endHours":27.09879606531485,"quality":"inauspicious"},{"name":"Udveg","start":"03:06","end":"04:24","startHours":27.09879606531485,"endHours":28.396132863660647,"quality":"inauspicious"},{"name":"Chala","start":"04:24","end":"05:42","startHours":28.396132863660647,"endHours":29.693469662006443,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.693469662006442,"endHours":6.693469662006442,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.693469662006442,"endHours":7.693469662006442,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.693469662006442,"endHours":8.693469662006443,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.693469662006443,"endHours":9.693469662006443,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.693469662006443,"endHours":10.693469662006443,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.693469662006443,"endHours":11.693469662006443,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.693469662006443,"endHours":12.693469662006443,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.693469662006443,"endHours":13.693469662006443,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.693469662006443,"endHours":14.693469662006443,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.693469662006443,"endHours":15.693469662006443,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.693469662006443,"endHours":16.693469662006443,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.693469662006443,"endHours":17.693469662006443,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.693469662006443,"endHours":18.693469662006443,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.693469662006443,"endHours":19.693469662006443,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.693469662006443,"endHours":20.693469662006443,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.693469662006443,"endHours":21.693469662006443,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.693469662006443,"endHours":22.693469662006443,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.693469662006443,"endHours":23.693469662006443,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.693469662006443,"endHours":24.693469662006443,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.693469662006443,"endHours":25.693469662006443,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.693469662006443,"endHours":26.693469662006443,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.693469662006443,"endHours":27.693469662006443,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.693469662006443,"endHours":28.693469662006443,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.693469662006443,"endHours":29.693469662006443,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","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":-17.17049353634237,"eotMinutes":-13.689348117395623,"ayanamsa":21.6331}},"calendars":{"vikram_samvat":1898,"vikram_samvatsara":"Ānanda","saka_samvat":1763,"saka_samvatsara":"Plava","bengali_samvat":1248,"malayalam_era":1017,"nanakshahi_year":372,"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 Daśamī · Vikram 1898 Ānanda · Śaka 1763 Plava"},"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Rohiṇī","url":"/day/-3226-07-09","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 February 1, 1841 CE · Perth, Australia · Vidhyamitra","description":"February 1, 1841 CE for Perth, Australia: Śukla Daśamī, sūryodaya 05:42, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1841-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1841-02-01","sa":"https://sa.vidhyamitra.com/city/perth/1841-02-01","hi":"https://hi.vidhyamitra.com/city/perth/1841-02-01","x-default":"https://vidhyamitra.com/city/perth/1841-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T17:32:16.476Z","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":"2026-06-03T17:32:16.476Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T17:32:16.476Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}