{"id":"vidhyamitra:city-day:perth:2172-10-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2172-10-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2172-10-25","date_display":"October 25, 2172 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":2172,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514664.770833,"kali_year":5274,"ahargana":1926199.2708,"sun":{"sidereal_longitude":184.8588,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":281.5987,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.7399,"elapsed_within_tithi_degrees":0.7399},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":281.5987,"elapsed_within_degrees":1.5987},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":106.4575},"karana":{"half_tithi_index":16,"name":"Bālava"},"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":2172,"month":10,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514664.770833,"ahargana":1926199.2708,"kali_year":5274,"ayanamsa_lahiri":26.2671,"grahas":{"sun":{"sidereal_longitude":185.992971,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":284.35277099999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":-4.4186},"mars":{"sidereal_longitude":243.06647099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":167.30877099999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":205.30037100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":158.179571,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":327.226671,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":0.6931,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":180.6931,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":2172,"month":10,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514664.770833,"kali_year":5274,"ahargana":1926199.2708,"sun":{"sidereal_longitude":184.8588,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":281.5987,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":9,"name":"Navamī","paksha":"Śukla","full_name":"Śukla Navamī","elongation_degrees":96.7399,"elapsed_within_tithi_degrees":0.7399},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":281.5987,"elapsed_within_degrees":1.5987},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":106.4575},"karana":{"half_tithi_index":16,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.419,"elongation":96.74},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.419,"opposition_distance":83.26}},"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":"05:25","sunsetLocal":"18:36","solarNoonLocal":"12:00","dayLengthHours":13.173624753209303,"dayLengthDisplay":"13 Hours 10 Mins 25 Secs","nightLengthDisplay":"10 Hours 49 Mins 35 Secs","moonriseLocal":"11:45","moonsetLocal":"01:22","rahuKala":{"name":"Rāhu Kāla","start":"16:57","end":"18:36","startHours":16.945494964670722,"endHours":18.592198058821886,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:00","end":"13:39","startHours":12.005385682217234,"endHours":13.652088776368398,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:18","end":"16:57","startHours":15.298791870519558,"endHours":16.945494964670722,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:30","end":"08:56","startHours":8.492419081361419,"endHours":8.931539906468396,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:58","end":"06:19","startHours":5.967474336996303,"endHours":6.318770997081884,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.566264857110257,"endHours":12.444506507324212,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:40","end":"04:32","startHours":3.662090005184675,"endHours":4.540331655398628,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:19","end":"05:25","startHours":4.32077124284514,"endHours":5.418573305612582,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"15:05","startHours":14.200989807752116,"endHours":15.079231457966069,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:24","end":"18:48","startHours":18.392198058821887,"endHours":18.792198058821885,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:36","end":"19:08","startHours":18.592198058821886,"endHours":19.141099090205607,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:21","end":"20:06","startHours":18.342198058821886,"endHours":20.092198058821886,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.56626485711026,"endHours":24.44450650732421,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:25","end":"07:04","startHours":5.418573305612582,"endHours":7.065276399763745,"quality":"inauspicious"},{"name":"Chala","start":"07:04","end":"08:43","startHours":7.065276399763745,"endHours":8.711979493914907,"quality":"neutral"},{"name":"Labha","start":"08:43","end":"10:22","startHours":8.711979493914907,"endHours":10.35868258806607,"quality":"auspicious"},{"name":"Amṛta","start":"10:22","end":"12:00","startHours":10.35868258806607,"endHours":12.005385682217234,"quality":"auspicious"},{"name":"Kāla","start":"12:00","end":"13:39","startHours":12.005385682217234,"endHours":13.652088776368398,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:18","startHours":13.652088776368398,"endHours":15.298791870519558,"quality":"auspicious"},{"name":"Roga","start":"15:18","end":"16:57","startHours":15.298791870519558,"endHours":16.945494964670722,"quality":"inauspicious"},{"name":"Udveg","start":"16:57","end":"18:36","startHours":16.945494964670722,"endHours":18.592198058821886,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:36","end":"19:57","startHours":18.592198058821886,"endHours":19.945494964670722,"quality":"auspicious"},{"name":"Roga","start":"19:57","end":"21:18","startHours":19.945494964670722,"endHours":21.29879187051956,"quality":"inauspicious"},{"name":"Udveg","start":"21:18","end":"22:39","startHours":21.29879187051956,"endHours":22.652088776368398,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:00","startHours":22.652088776368398,"endHours":24.005385682217234,"quality":"neutral"},{"name":"Labha","start":"00:00","end":"01:22","startHours":24.005385682217234,"endHours":25.35868258806607,"quality":"auspicious"},{"name":"Amṛta","start":"01:22","end":"02:43","startHours":25.35868258806607,"endHours":26.71197949391491,"quality":"auspicious"},{"name":"Kāla","start":"02:43","end":"04:04","startHours":26.71197949391491,"endHours":28.065276399763746,"quality":"inauspicious"},{"name":"Śubha","start":"04:04","end":"05:25","startHours":28.065276399763746,"endHours":29.418573305612583,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:25","end":"06:25","startHours":5.418573305612582,"endHours":6.418573305612582,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:25","end":"07:25","startHours":6.418573305612582,"endHours":7.418573305612582,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:25","end":"08:25","startHours":7.418573305612582,"endHours":8.418573305612583,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:25","end":"09:25","startHours":8.418573305612583,"endHours":9.418573305612583,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:25","end":"10:25","startHours":9.418573305612583,"endHours":10.418573305612583,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:25","end":"11:25","startHours":10.418573305612583,"endHours":11.418573305612583,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:25","end":"12:25","startHours":11.418573305612583,"endHours":12.418573305612583,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:25","end":"13:25","startHours":12.418573305612583,"endHours":13.418573305612583,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:25","end":"14:25","startHours":13.418573305612583,"endHours":14.418573305612583,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:25","end":"15:25","startHours":14.418573305612583,"endHours":15.418573305612583,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:25","end":"16:25","startHours":15.418573305612583,"endHours":16.418573305612583,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:25","end":"17:25","startHours":16.418573305612583,"endHours":17.418573305612583,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:25","end":"18:25","startHours":17.418573305612583,"endHours":18.418573305612583,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:25","end":"19:25","startHours":18.418573305612583,"endHours":19.418573305612583,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:25","end":"20:25","startHours":19.418573305612583,"endHours":20.418573305612583,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:25","end":"21:25","startHours":20.418573305612583,"endHours":21.418573305612583,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:25","end":"22:25","startHours":21.418573305612583,"endHours":22.418573305612583,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:25","end":"23:25","startHours":22.418573305612583,"endHours":23.418573305612583,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:25","end":"00:25","startHours":23.418573305612583,"endHours":24.418573305612583,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:25","end":"01:25","startHours":24.418573305612583,"endHours":25.418573305612583,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:25","end":"02:25","startHours":25.418573305612583,"endHours":26.418573305612583,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:25","end":"03:25","startHours":26.418573305612583,"endHours":27.418573305612583,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:25","end":"04:25","startHours":27.418573305612583,"endHours":28.418573305612583,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:25","end":"05:25","startHours":28.418573305612583,"endHours":29.418573305612583,"planetary_lord":"Jupiter"}],"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":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.256875385218368,"eotMinutes":16.234859066965946,"ayanamsa":26.2671}},"calendars":{"vikram_samvat":2229,"vikram_samvatsara":"Pārthiva","saka_samvat":2094,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1579,"malayalam_era":1348,"nanakshahi_year":703,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Navamī · Vikram 2229 Pārthiva · Śaka 2094 Aṅgirasa"},"festivals":[{"id":"mahanavami","name":"Mahā-Navamī","name_sanskrit":"महानवमी","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"9th day of Śāradīya Navrātri; Devī's final victory.","vrata":true,"detection":{"tithi_number":9,"tithi_paksha":"Śukla","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":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Śukla Navamī","url":"/day/-1626101-04-03","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 25, 2172 CE · Perth, Australia · Vidhyamitra","description":"October 25, 2172 CE for Perth, Australia: Śukla Navamī, sūryodaya 05:25, sūryāsta 18:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2172-10-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2172-10-25","sa":"https://sa.vidhyamitra.com/city/perth/2172-10-25","hi":"https://hi.vidhyamitra.com/city/perth/2172-10-25","x-default":"https://vidhyamitra.com/city/perth/2172-10-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:45:58.041Z","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":"2026-05-31T16:45:58.041Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:45:58.041Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}