{"id":"vidhyamitra:city-day:perth:2102-10-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2102-10-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-10-15","date_display":"October 15, 2102 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":2102,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489086.770833,"kali_year":5204,"ahargana":1900621.2708,"sun":{"sidereal_longitude":175.0231,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":209.8162,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":34.7932,"elapsed_within_tithi_degrees":10.7932},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.8162,"elapsed_within_degrees":9.8162},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.8393},"karana":{"half_tithi_index":5,"name":"Gara"},"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":2102,"month":10,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2489086.770833,"ahargana":1900621.2708,"kali_year":5204,"ayanamsa_lahiri":25.2888,"grahas":{"sun":{"sidereal_longitude":176.009639,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":211.072139,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false,"latitude":-4.1142},"mars":{"sidereal_longitude":186.12683900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":171.22353900000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":234.37803899999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":178.51623900000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":202.91873899999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":275.9386,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":95.9386,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2102,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2489086.770833,"kali_year":5204,"ahargana":1900621.2708,"sun":{"sidereal_longitude":175.0231,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":209.8162,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":34.7932,"elapsed_within_tithi_degrees":10.7932},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":209.8162,"elapsed_within_degrees":9.8162},"yoga":{"number":2,"name":"Prīti","sum_longitude":24.8393},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.114,"elongation":34.793},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.114,"opposition_distance":145.207}},"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":"05:37","sunsetLocal":"18:27","solarNoonLocal":"12:02","dayLengthHours":12.82951454372149,"dayLengthDisplay":"12 Hours 49 Mins 46 Secs","nightLengthDisplay":"11 Hours 10 Mins 14 Secs","moonriseLocal":"07:28","moonsetLocal":"21:16","rahuKala":{"name":"Rāhu Kāla","start":"16:50","end":"18:27","startHours":16.839420781040424,"endHours":18.44311009900561,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:02","end":"13:38","startHours":12.028352827144865,"endHours":13.632042145110052,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:14","end":"16:50","startHours":15.23573146307524,"endHours":16.839420781040424,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:02","startHours":8.607148948819134,"endHours":9.034799433609852,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:09","end":"06:29","startHours":6.148158661272515,"endHours":6.490279049105089,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:27","startHours":11.60070234235415,"endHours":12.456003311935582,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:54","end":"04:45","startHours":3.902993616121255,"endHours":4.7582945857026875,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:33","end":"05:37","startHours":4.544469343307329,"endHours":5.61359555528412,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:01","startHours":14.16660525109845,"endHours":15.021906220679883,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.243110099005612,"endHours":18.64311009900561,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:59","startHours":18.44311009900561,"endHours":18.97767320499401,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.19311009900561,"endHours":19.94311009900561,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:27","startHours":23.600702342354147,"endHours":24.456003311935582,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:37","end":"07:13","startHours":5.61359555528412,"endHours":7.217284873249307,"quality":"inauspicious"},{"name":"Chala","start":"07:13","end":"08:49","startHours":7.217284873249307,"endHours":8.820974191214493,"quality":"neutral"},{"name":"Labha","start":"08:49","end":"10:25","startHours":8.820974191214493,"endHours":10.42466350917968,"quality":"auspicious"},{"name":"Amṛta","start":"10:25","end":"12:02","startHours":10.42466350917968,"endHours":12.028352827144865,"quality":"auspicious"},{"name":"Kāla","start":"12:02","end":"13:38","startHours":12.028352827144865,"endHours":13.632042145110052,"quality":"inauspicious"},{"name":"Śubha","start":"13:38","end":"15:14","startHours":13.632042145110052,"endHours":15.23573146307524,"quality":"auspicious"},{"name":"Roga","start":"15:14","end":"16:50","startHours":15.23573146307524,"endHours":16.839420781040424,"quality":"inauspicious"},{"name":"Udveg","start":"16:50","end":"18:27","startHours":16.839420781040424,"endHours":18.44311009900561,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:27","end":"19:50","startHours":18.44311009900561,"endHours":19.839420781040424,"quality":"auspicious"},{"name":"Roga","start":"19:50","end":"21:14","startHours":19.839420781040424,"endHours":21.23573146307524,"quality":"inauspicious"},{"name":"Udveg","start":"21:14","end":"22:38","startHours":21.23573146307524,"endHours":22.632042145110052,"quality":"inauspicious"},{"name":"Chala","start":"22:38","end":"00:02","startHours":22.632042145110052,"endHours":24.028352827144865,"quality":"neutral"},{"name":"Labha","start":"00:02","end":"01:25","startHours":24.028352827144865,"endHours":25.42466350917968,"quality":"auspicious"},{"name":"Amṛta","start":"01:25","end":"02:49","startHours":25.42466350917968,"endHours":26.820974191214493,"quality":"auspicious"},{"name":"Kāla","start":"02:49","end":"04:13","startHours":26.820974191214493,"endHours":28.217284873249305,"quality":"inauspicious"},{"name":"Śubha","start":"04:13","end":"05:37","startHours":28.217284873249305,"endHours":29.61359555528412,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:37","end":"06:37","startHours":5.61359555528412,"endHours":6.61359555528412,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:37","end":"07:37","startHours":6.61359555528412,"endHours":7.61359555528412,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:37","end":"08:37","startHours":7.61359555528412,"endHours":8.613595555284121,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:37","end":"09:37","startHours":8.613595555284121,"endHours":9.613595555284121,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:37","end":"10:37","startHours":9.613595555284121,"endHours":10.613595555284121,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:37","end":"11:37","startHours":10.613595555284121,"endHours":11.613595555284121,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:37","end":"12:37","startHours":11.613595555284121,"endHours":12.613595555284121,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:37","end":"13:37","startHours":12.613595555284121,"endHours":13.613595555284121,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:37","end":"14:37","startHours":13.613595555284121,"endHours":14.613595555284121,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:37","end":"15:37","startHours":14.613595555284121,"endHours":15.613595555284121,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:37","end":"16:37","startHours":15.613595555284121,"endHours":16.61359555528412,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:37","end":"17:37","startHours":16.61359555528412,"endHours":17.61359555528412,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:37","end":"18:37","startHours":17.61359555528412,"endHours":18.61359555528412,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:37","end":"19:37","startHours":18.61359555528412,"endHours":19.61359555528412,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:37","end":"20:37","startHours":19.61359555528412,"endHours":20.61359555528412,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:37","end":"21:37","startHours":20.61359555528412,"endHours":21.61359555528412,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:37","end":"22:37","startHours":21.61359555528412,"endHours":22.61359555528412,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:37","end":"23:37","startHours":22.61359555528412,"endHours":23.61359555528412,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:37","end":"00:37","startHours":23.61359555528412,"endHours":24.61359555528412,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:37","end":"01:37","startHours":24.61359555528412,"endHours":25.61359555528412,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:37","end":"02:37","startHours":25.61359555528412,"endHours":26.61359555528412,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:37","end":"03:37","startHours":26.61359555528412,"endHours":27.61359555528412,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:37","end":"04:37","startHours":27.61359555528412,"endHours":28.61359555528412,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:37","end":"05:37","startHours":28.61359555528412,"endHours":29.61359555528412,"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","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.306398773181847,"eotMinutes":14.85683037130801,"ayanamsa":25.2888}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"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":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Tṛtīyā · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"festivals":[],"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":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 15, 2102 CE · Perth, Australia · Vidhyamitra","description":"October 15, 2102 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 05:37, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2102-10-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2102-10-15","sa":"https://sa.vidhyamitra.com/city/perth/2102-10-15","hi":"https://hi.vidhyamitra.com/city/perth/2102-10-15","x-default":"https://vidhyamitra.com/city/perth/2102-10-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T13:17:11.581Z","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":"2026-05-31T13:17:11.581Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:17:11.581Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}