{"id":"vidhyamitra:city-day:perth:1899-10-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1899-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1899-10-04","date_display":"October 4, 1899 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":1899,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2414931.770833,"kali_year":5001,"ahargana":1826466.2708,"sun":{"sidereal_longitude":167.6352,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":158.5968,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.9616,"elapsed_within_tithi_degrees":2.9616},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.5968,"elapsed_within_degrees":11.9302},"yoga":{"number":25,"name":"Brahma","sum_longitude":326.232},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":1899,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2414931.770833,"ahargana":1826466.2708,"kali_year":5001,"ayanamsa_lahiri":22.4527,"grahas":{"sun":{"sidereal_longitude":168.13740499999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":159.601805,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":-4.4913},"mars":{"sidereal_longitude":197.65820499999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":171.62780499999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":200.97470499999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":174.26740500000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":237.25650500000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":245.0274,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":65.0274,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":1899,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2414931.770833,"kali_year":5001,"ahargana":1826466.2708,"sun":{"sidereal_longitude":167.6352,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":158.5968,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.9616,"elapsed_within_tithi_degrees":2.9616},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.5968,"elapsed_within_degrees":11.9302},"yoga":{"number":25,"name":"Brahma","sum_longitude":326.232},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.491,"elongation":9.038},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.491,"opposition_distance":170.962}},"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":"05:50","sunsetLocal":"18:19","solarNoonLocal":"12:04","dayLengthHours":12.480758516880805,"dayLengthDisplay":"12 Hours 28 Mins 51 Secs","nightLengthDisplay":"11 Hours 31 Mins 09 Secs","moonriseLocal":"05:26","moonsetLocal":"17:35","rahuKala":{"name":"Rāhu Kāla","start":"12:04","end":"13:38","startHours":12.07434894687183,"endHours":13.63444376148193,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:24","end":"08:57","startHours":7.394064503041528,"endHours":8.954159317651628,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:31","end":"12:04","startHours":10.51425413226173,"endHours":12.07434894687183,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:10","startHours":8.746146675703615,"endHours":9.162171959599641,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:41","startHours":6.354001293301461,"endHours":6.686821520418282,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:29","startHours":11.658323662975803,"endHours":12.490374230767856,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:00","startHours":4.16986855284732,"endHours":5.001919120639373,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:50","startHours":4.79390647869136,"endHours":5.833969688431427,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.154475366351964,"endHours":14.986525934144018,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.114728205312232,"endHours":18.51472820531223,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:50","startHours":18.314728205312232,"endHours":18.834759810182266,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.064728205312232,"endHours":19.814728205312232,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:29","startHours":23.658323662975803,"endHours":24.490374230767856,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:50","end":"07:24","startHours":5.833969688431427,"endHours":7.394064503041528,"quality":"auspicious"},{"name":"Amṛta","start":"07:24","end":"08:57","startHours":7.394064503041528,"endHours":8.954159317651628,"quality":"auspicious"},{"name":"Kāla","start":"08:57","end":"10:31","startHours":8.954159317651628,"endHours":10.51425413226173,"quality":"inauspicious"},{"name":"Śubha","start":"10:31","end":"12:04","startHours":10.51425413226173,"endHours":12.07434894687183,"quality":"auspicious"},{"name":"Roga","start":"12:04","end":"13:38","startHours":12.07434894687183,"endHours":13.63444376148193,"quality":"inauspicious"},{"name":"Udveg","start":"13:38","end":"15:12","startHours":13.63444376148193,"endHours":15.19453857609203,"quality":"inauspicious"},{"name":"Chala","start":"15:12","end":"16:45","startHours":15.19453857609203,"endHours":16.754633390702132,"quality":"neutral"},{"name":"Labha","start":"16:45","end":"18:19","startHours":16.754633390702132,"endHours":18.314728205312232,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:19","end":"19:45","startHours":18.314728205312232,"endHours":19.754633390702132,"quality":"inauspicious"},{"name":"Chala","start":"19:45","end":"21:12","startHours":19.754633390702132,"endHours":21.19453857609203,"quality":"neutral"},{"name":"Labha","start":"21:12","end":"22:38","startHours":21.19453857609203,"endHours":22.63444376148193,"quality":"auspicious"},{"name":"Amṛta","start":"22:38","end":"00:04","startHours":22.63444376148193,"endHours":24.07434894687183,"quality":"auspicious"},{"name":"Kāla","start":"00:04","end":"01:31","startHours":24.07434894687183,"endHours":25.51425413226173,"quality":"inauspicious"},{"name":"Śubha","start":"01:31","end":"02:57","startHours":25.51425413226173,"endHours":26.95415931765163,"quality":"auspicious"},{"name":"Roga","start":"02:57","end":"04:24","startHours":26.95415931765163,"endHours":28.394064503041527,"quality":"inauspicious"},{"name":"Udveg","start":"04:24","end":"05:50","startHours":28.394064503041527,"endHours":29.833969688431427,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:50","end":"06:50","startHours":5.833969688431427,"endHours":6.833969688431427,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:50","end":"07:50","startHours":6.833969688431427,"endHours":7.833969688431427,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:50","end":"08:50","startHours":7.833969688431427,"endHours":8.833969688431427,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:50","end":"09:50","startHours":8.833969688431427,"endHours":9.833969688431427,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:50","end":"10:50","startHours":9.833969688431427,"endHours":10.833969688431427,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:50","end":"11:50","startHours":10.833969688431427,"endHours":11.833969688431427,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:50","end":"12:50","startHours":11.833969688431427,"endHours":12.833969688431427,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:50","end":"13:50","startHours":12.833969688431427,"endHours":13.833969688431427,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:50","end":"14:50","startHours":13.833969688431427,"endHours":14.833969688431427,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:50","end":"15:50","startHours":14.833969688431427,"endHours":15.833969688431427,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:50","end":"16:50","startHours":15.833969688431427,"endHours":16.833969688431427,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:50","end":"17:50","startHours":16.833969688431427,"endHours":17.833969688431427,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:50","end":"18:50","startHours":17.833969688431427,"endHours":18.833969688431427,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:50","end":"19:50","startHours":18.833969688431427,"endHours":19.833969688431427,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:50","end":"20:50","startHours":19.833969688431427,"endHours":20.833969688431427,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:50","end":"21:50","startHours":20.833969688431427,"endHours":21.833969688431427,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:50","end":"22:50","startHours":21.833969688431427,"endHours":22.833969688431427,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:50","end":"23:50","startHours":22.833969688431427,"endHours":23.833969688431427,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:50","end":"00:50","startHours":23.833969688431427,"endHours":24.833969688431427,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:50","end":"01:50","startHours":24.833969688431427,"endHours":25.833969688431427,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:50","end":"02:50","startHours":25.833969688431427,"endHours":26.833969688431427,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:50","end":"03:50","startHours":26.833969688431427,"endHours":27.833969688431427,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:50","end":"04:50","startHours":27.833969688431427,"endHours":28.833969688431427,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:50","end":"05:50","startHours":28.833969688431427,"endHours":29.833969688431427,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-4.191825405223808,"eotMinutes":12.09706318769023,"ayanamsa":22.4527}},"calendars":{"vikram_samvat":1956,"vikram_samvatsara":"Paridhāvi","saka_samvat":1821,"saka_samvatsara":"Vikāri","bengali_samvat":1306,"malayalam_era":1075,"nanakshahi_year":430,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Amāvasyā · Vikram 1956 Paridhāvi · Śaka 1821 Vikāri"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":1}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 October 4, 1899 CE · Perth, Australia · Vidhyamitra","description":"October 4, 1899 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:50, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1899-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1899-10-04","sa":"https://sa.vidhyamitra.com/city/perth/1899-10-04","hi":"https://hi.vidhyamitra.com/city/perth/1899-10-04","x-default":"https://vidhyamitra.com/city/perth/1899-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:01:04.649Z","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":"2026-06-02T08:01:04.649Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:01:04.649Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}