{"id":"vidhyamitra:city-day:perth:1835-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1835-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1835-02-01","date_display":"February 1, 1835 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":1835,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2391310.770833,"kali_year":4936,"ahargana":1802845.2708,"sun":{"sidereal_longitude":290.389,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":329.8578,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.4688,"elapsed_within_tithi_degrees":3.4688},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.8578,"elapsed_within_degrees":9.8578},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.2468},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1835,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2391310.770833,"ahargana":1802845.2708,"kali_year":4936,"ayanamsa_lahiri":21.5493,"grahas":{"sun":{"sidereal_longitude":289.975601,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":327.40340100000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false,"latitude":-4.4926},"mars":{"sidereal_longitude":73.97830099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":296.640001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":41.66730100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":249.95860100000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":183.373201,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":56.5817,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":236.5817,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":1835,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2391310.770833,"kali_year":4936,"ahargana":1802845.2708,"sun":{"sidereal_longitude":290.389,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":329.8578,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":39.4688,"elapsed_within_tithi_degrees":3.4688},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.8578,"elapsed_within_degrees":9.8578},"yoga":{"number":20,"name":"Śiva","sum_longitude":260.2468},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.493,"elongation":39.469},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.493,"opposition_distance":140.531}},"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":"05:41","sunsetLocal":"19:19","solarNoonLocal":"12:30","dayLengthHours":13.635711490147873,"dayLengthDisplay":"13 Hours 38 Mins 09 Secs","nightLengthDisplay":"10 Hours 21 Mins 51 Secs","moonriseLocal":"08:46","moonsetLocal":"21:14","rahuKala":{"name":"Rāhu Kāla","start":"17:37","end":"19:19","startHours":17.617514277428715,"endHours":19.321978213697196,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:30","end":"14:13","startHours":12.504122468623262,"endHours":14.208586404891744,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:55","end":"17:37","startHours":15.913050341160229,"endHours":17.617514277428715,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:19","startHours":8.867932737917162,"endHours":9.322456454255423,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:15","end":"06:37","startHours":6.254421368972152,"endHours":6.618040342042762,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:58","startHours":12.049598752284998,"endHours":12.958646184961522,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:52","end":"04:47","startHours":3.8681718581962743,"endHours":4.777219290872799,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:41","startHours":4.5499574327036685,"endHours":5.686266723549324,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:41","startHours":14.776741050314573,"endHours":15.685788482991098,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:07","end":"19:31","startHours":19.121978213697197,"endHours":19.521978213697196,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:19","end":"19:53","startHours":19.321978213697196,"endHours":19.890132859120026,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:04","end":"20:49","startHours":19.071978213697196,"endHours":20.821978213697196,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:58","startHours":24.049598752284997,"endHours":24.95864618496152,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:41","end":"07:23","startHours":5.686266723549324,"endHours":7.390730659817809,"quality":"inauspicious"},{"name":"Chala","start":"07:23","end":"09:06","startHours":7.390730659817809,"endHours":9.095194596086293,"quality":"neutral"},{"name":"Labha","start":"09:06","end":"10:48","startHours":9.095194596086293,"endHours":10.799658532354776,"quality":"auspicious"},{"name":"Amṛta","start":"10:48","end":"12:30","startHours":10.799658532354776,"endHours":12.504122468623262,"quality":"auspicious"},{"name":"Kāla","start":"12:30","end":"14:13","startHours":12.504122468623262,"endHours":14.208586404891744,"quality":"inauspicious"},{"name":"Śubha","start":"14:13","end":"15:55","startHours":14.208586404891744,"endHours":15.913050341160229,"quality":"auspicious"},{"name":"Roga","start":"15:55","end":"17:37","startHours":15.913050341160229,"endHours":17.617514277428715,"quality":"inauspicious"},{"name":"Udveg","start":"17:37","end":"19:19","startHours":17.617514277428715,"endHours":19.321978213697196,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:19","end":"20:37","startHours":19.321978213697196,"endHours":20.61751427742871,"quality":"auspicious"},{"name":"Roga","start":"20:37","end":"21:55","startHours":20.61751427742871,"endHours":21.91305034116023,"quality":"inauspicious"},{"name":"Udveg","start":"21:55","end":"23:13","startHours":21.91305034116023,"endHours":23.208586404891744,"quality":"inauspicious"},{"name":"Chala","start":"23:13","end":"00:30","startHours":23.208586404891744,"endHours":24.504122468623258,"quality":"neutral"},{"name":"Labha","start":"00:30","end":"01:48","startHours":24.504122468623258,"endHours":25.799658532354776,"quality":"auspicious"},{"name":"Amṛta","start":"01:48","end":"03:06","startHours":25.799658532354776,"endHours":27.09519459608629,"quality":"auspicious"},{"name":"Kāla","start":"03:06","end":"04:23","startHours":27.09519459608629,"endHours":28.390730659817805,"quality":"inauspicious"},{"name":"Śubha","start":"04:23","end":"05:41","startHours":28.390730659817805,"endHours":29.686266723549323,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:41","end":"06:41","startHours":5.686266723549324,"endHours":6.686266723549324,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:41","end":"07:41","startHours":6.686266723549324,"endHours":7.686266723549324,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:41","end":"08:41","startHours":7.686266723549324,"endHours":8.686266723549323,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:41","end":"09:41","startHours":8.686266723549323,"endHours":9.686266723549323,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:41","end":"10:41","startHours":9.686266723549323,"endHours":10.686266723549323,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:41","end":"11:41","startHours":10.686266723549323,"endHours":11.686266723549323,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:41","end":"12:41","startHours":11.686266723549323,"endHours":12.686266723549323,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:41","end":"13:41","startHours":12.686266723549323,"endHours":13.686266723549323,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:41","end":"14:41","startHours":13.686266723549323,"endHours":14.686266723549323,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:41","end":"15:41","startHours":14.686266723549323,"endHours":15.686266723549323,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:41","end":"16:41","startHours":15.686266723549323,"endHours":16.686266723549323,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:41","end":"17:41","startHours":16.686266723549323,"endHours":17.686266723549323,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:41","end":"18:41","startHours":17.686266723549323,"endHours":18.686266723549323,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:41","end":"19:41","startHours":18.686266723549323,"endHours":19.686266723549323,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:41","end":"20:41","startHours":19.686266723549323,"endHours":20.686266723549323,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:41","end":"21:41","startHours":20.686266723549323,"endHours":21.686266723549323,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:41","end":"22:41","startHours":21.686266723549323,"endHours":22.686266723549323,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:41","end":"23:41","startHours":22.686266723549323,"endHours":23.686266723549323,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:41","end":"00:41","startHours":23.686266723549323,"endHours":24.686266723549323,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:41","end":"01:41","startHours":24.686266723549323,"endHours":25.686266723549323,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:41","end":"02:41","startHours":25.686266723549323,"endHours":26.686266723549323,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:41","end":"03:41","startHours":26.686266723549323,"endHours":27.686266723549323,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:41","end":"04:41","startHours":27.686266723549323,"endHours":28.686266723549323,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:41","end":"05:41","startHours":28.686266723549323,"endHours":29.686266723549323,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.32367942463445,"eotMinutes":-13.689348117395623,"ayanamsa":21.5493}},"calendars":{"vikram_samvat":1892,"vikram_samvatsara":"Kīlaka","saka_samvat":1757,"saka_samvatsara":"Manmatha","bengali_samvat":1242,"malayalam_era":1011,"nanakshahi_year":366,"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 1892 Kīlaka · Śaka 1757 Manmatha"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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, 1835 CE · Perth, Australia · Vidhyamitra","description":"February 1, 1835 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:41, sūryāsta 19:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1835-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1835-02-01","sa":"https://sa.vidhyamitra.com/city/perth/1835-02-01","hi":"https://hi.vidhyamitra.com/city/perth/1835-02-01","x-default":"https://vidhyamitra.com/city/perth/1835-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T02:07:24.206Z","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":"2026-06-04T02:07:24.206Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T02:07:24.206Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}