{"id":"vidhyamitra:city-day:perth:1900-09-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1900-09-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1900-09-23","date_display":"September 23, 1900 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":1900,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415285.770833,"kali_year":5002,"ahargana":1826820.2708,"sun":{"sidereal_longitude":156.5775,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":148.2624,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":351.6849,"elapsed_within_tithi_degrees":3.6849},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.2624,"elapsed_within_degrees":1.5957},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.8399},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":1900,"month":9,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2415285.770833,"ahargana":1826820.2708,"kali_year":5002,"ayanamsa_lahiri":22.4662,"grahas":{"sun":{"sidereal_longitude":157.07817899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":148.49687900000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":-4.4016},"mars":{"sidereal_longitude":96.72717899999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":165.93377899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":224.41247900000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":112.502679,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":247.521879,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":226.2708,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":46.2708,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":1900,"month":9,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415285.770833,"kali_year":5002,"ahargana":1826820.2708,"sun":{"sidereal_longitude":156.5775,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":148.2624,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":351.6849,"elapsed_within_tithi_degrees":3.6849},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.2624,"elapsed_within_degrees":1.5957},"yoga":{"number":23,"name":"Śubha","sum_longitude":304.8399},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.402,"elongation":8.315},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.402,"opposition_distance":171.685}},"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":"06:05","sunsetLocal":"18:12","solarNoonLocal":"12:08","dayLengthHours":12.115828258201274,"dayLengthDisplay":"12 Hours 06 Mins 57 Secs","nightLengthDisplay":"11 Hours 53 Mins 03 Secs","moonriseLocal":"05:40","moonsetLocal":"17:28","rahuKala":{"name":"Rāhu Kāla","start":"16:41","end":"18:12","startHours":16.678801696829392,"endHours":18.193280229104552,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:08","end":"13:39","startHours":12.135366100003914,"endHours":13.649844632279073,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:10","end":"16:41","startHours":15.164323164554233,"endHours":16.678801696829392,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:19","startHours":8.904478564483576,"endHours":9.308339506423618,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:54","startHours":6.582278148328331,"endHours":6.905366901880365,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.731505158063872,"endHours":12.539227041943956,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:28","end":"05:16","startHours":4.462008203143108,"endHours":5.269730087023193,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:05","startHours":5.067799616053172,"endHours":6.077451970903278,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:58","startHours":14.154670809704127,"endHours":14.962392693584212,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.993280229104553,"endHours":18.39328022910455,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:42","startHours":18.193280229104552,"endHours":18.698106406529604,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.943280229104552,"endHours":19.693280229104552,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.73150515806387,"endHours":24.539227041943956,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:05","end":"07:36","startHours":6.077451970903278,"endHours":7.591930503178437,"quality":"inauspicious"},{"name":"Chala","start":"07:36","end":"09:06","startHours":7.591930503178437,"endHours":9.106409035453597,"quality":"neutral"},{"name":"Labha","start":"09:06","end":"10:37","startHours":9.106409035453597,"endHours":10.620887567728754,"quality":"auspicious"},{"name":"Amṛta","start":"10:37","end":"12:08","startHours":10.620887567728754,"endHours":12.135366100003914,"quality":"auspicious"},{"name":"Kāla","start":"12:08","end":"13:39","startHours":12.135366100003914,"endHours":13.649844632279073,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:10","startHours":13.649844632279073,"endHours":15.164323164554233,"quality":"auspicious"},{"name":"Roga","start":"15:10","end":"16:41","startHours":15.164323164554233,"endHours":16.678801696829392,"quality":"inauspicious"},{"name":"Udveg","start":"16:41","end":"18:12","startHours":16.678801696829392,"endHours":18.193280229104552,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:12","end":"19:41","startHours":18.193280229104552,"endHours":19.678801696829392,"quality":"auspicious"},{"name":"Roga","start":"19:41","end":"21:10","startHours":19.678801696829392,"endHours":21.164323164554233,"quality":"inauspicious"},{"name":"Udveg","start":"21:10","end":"22:39","startHours":21.164323164554233,"endHours":22.649844632279073,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:08","startHours":22.649844632279073,"endHours":24.135366100003914,"quality":"neutral"},{"name":"Labha","start":"00:08","end":"01:37","startHours":24.135366100003914,"endHours":25.620887567728754,"quality":"auspicious"},{"name":"Amṛta","start":"01:37","end":"03:06","startHours":25.620887567728754,"endHours":27.106409035453595,"quality":"auspicious"},{"name":"Kāla","start":"03:06","end":"04:36","startHours":27.106409035453595,"endHours":28.59193050317844,"quality":"inauspicious"},{"name":"Śubha","start":"04:36","end":"06:05","startHours":28.59193050317844,"endHours":30.077451970903276,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.077451970903278,"endHours":7.077451970903278,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.077451970903278,"endHours":8.077451970903278,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.077451970903278,"endHours":9.077451970903278,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.077451970903278,"endHours":10.077451970903278,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.077451970903278,"endHours":11.077451970903278,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.077451970903278,"endHours":12.077451970903278,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.077451970903278,"endHours":13.077451970903278,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.077451970903278,"endHours":14.077451970903278,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.077451970903278,"endHours":15.077451970903278,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.077451970903278,"endHours":16.077451970903276,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.077451970903276,"endHours":17.077451970903276,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.077451970903276,"endHours":18.077451970903276,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.077451970903276,"endHours":19.077451970903276,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.077451970903276,"endHours":20.077451970903276,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.077451970903276,"endHours":21.077451970903276,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.077451970903276,"endHours":22.077451970903276,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.077451970903276,"endHours":23.077451970903276,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.077451970903276,"endHours":24.077451970903276,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.077451970903276,"endHours":25.077451970903276,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.077451970903276,"endHours":26.077451970903276,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.077451970903276,"endHours":27.077451970903276,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.077451970903276,"endHours":28.077451970903276,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.077451970903276,"endHours":29.077451970903276,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.077451970903276,"endHours":30.077451970903276,"planetary_lord":"Jupiter"}],"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":0.18121365393441013,"eotMinutes":8.436033999765183,"ayanamsa":22.4662}},"calendars":{"vikram_samvat":1957,"vikram_samvatsara":"Pramādī","saka_samvat":1822,"saka_samvatsara":"Śārvarī","bengali_samvat":1307,"malayalam_era":1076,"nanakshahi_year":431,"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 1957 Pramādī · Śaka 1822 Śārvarī"},"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":"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":[{"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 September 23, 1900 CE · Perth, Australia · Vidhyamitra","description":"September 23, 1900 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 06:05, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1900-09-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1900-09-23","sa":"https://sa.vidhyamitra.com/city/perth/1900-09-23","hi":"https://hi.vidhyamitra.com/city/perth/1900-09-23","x-default":"https://vidhyamitra.com/city/perth/1900-09-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:57:00.294Z","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":"2026-06-02T08:57:00.294Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:57:00.294Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}