{"id":"vidhyamitra:city-day:perth:2109-10-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2109-10-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2109-10-10","date_display":"October 10, 2109 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":2109,"month":10,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491638.770833,"kali_year":5211,"ahargana":1903173.2708,"sun":{"sidereal_longitude":170.2617,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":4.5645,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.3028,"elapsed_within_tithi_degrees":2.3028},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.5645,"elapsed_within_degrees":4.5645},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.8262},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2109,"month":10,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2491638.770833,"ahargana":1903173.2708,"kali_year":5211,"ayanamsa_lahiri":25.3864,"grahas":{"sun":{"sidereal_longitude":171.271034,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"moon":{"sidereal_longitude":3.056533999999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false,"latitude":-3.1154},"mars":{"sidereal_longitude":128.81273399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":168.667234,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":114.224534,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":216.19973400000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":277.65843399999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":140.7214,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":320.7214,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":2109,"month":10,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2491638.770833,"kali_year":5211,"ahargana":1903173.2708,"sun":{"sidereal_longitude":170.2617,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":4.5645,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":194.3028,"elapsed_within_tithi_degrees":2.3028},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.5645,"elapsed_within_degrees":4.5645},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":174.8262},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.115,"elongation":165.697},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.115,"opposition_distance":14.303}},"eclipse_window_40days":[{"offset_days":-15,"type":"solar","occurs":true,"moon_latitude":1.308,"elongation":2.915}]},"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":"05:42","sunsetLocal":"18:23","solarNoonLocal":"12:03","dayLengthHours":12.679407610081604,"dayLengthDisplay":"12 Hours 40 Mins 46 Secs","nightLengthDisplay":"11 Hours 19 Mins 14 Secs","moonriseLocal":"19:15","moonsetLocal":"06:25","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:13","startHours":13.631835183394038,"endHours":15.216761134654238,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:42","end":"07:18","startHours":5.707205427093036,"endHours":7.292131378353236,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:53","end":"10:28","startHours":8.877057329613436,"endHours":10.461983280873637,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:40","end":"09:05","startHours":8.665733869445411,"endHours":9.088380789781464,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:14","end":"06:34","startHours":6.235514077513103,"endHours":6.573631613781946,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:28","startHours":11.624262311797786,"endHours":12.469556152469892,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:01","end":"04:52","startHours":4.016617745748822,"endHours":4.861911586420929,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:39","end":"05:42","startHours":4.650588126252902,"endHours":5.707205427093036,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:00","startHours":14.160143833814107,"endHours":15.005437674486215,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:11","end":"18:35","startHours":18.18661303717464,"endHours":18.58661303717464,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:23","end":"18:55","startHours":18.38661303717464,"endHours":18.914921687594706,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:08","end":"19:53","startHours":18.13661303717464,"endHours":19.88661303717464,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:28","startHours":23.624262311797786,"endHours":24.46955615246989,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:42","end":"07:18","startHours":5.707205427093036,"endHours":7.292131378353236,"quality":"auspicious"},{"name":"Roga","start":"07:18","end":"08:53","startHours":7.292131378353236,"endHours":8.877057329613436,"quality":"inauspicious"},{"name":"Udveg","start":"08:53","end":"10:28","startHours":8.877057329613436,"endHours":10.461983280873637,"quality":"inauspicious"},{"name":"Chala","start":"10:28","end":"12:03","startHours":10.461983280873637,"endHours":12.046909232133839,"quality":"neutral"},{"name":"Labha","start":"12:03","end":"13:38","startHours":12.046909232133839,"endHours":13.631835183394038,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:13","startHours":13.631835183394038,"endHours":15.216761134654238,"quality":"auspicious"},{"name":"Kāla","start":"15:13","end":"16:48","startHours":15.216761134654238,"endHours":16.80168708591444,"quality":"inauspicious"},{"name":"Śubha","start":"16:48","end":"18:23","startHours":16.80168708591444,"endHours":18.38661303717464,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:23","end":"19:48","startHours":18.38661303717464,"endHours":19.80168708591444,"quality":"auspicious"},{"name":"Kāla","start":"19:48","end":"21:13","startHours":19.80168708591444,"endHours":21.21676113465424,"quality":"inauspicious"},{"name":"Śubha","start":"21:13","end":"22:38","startHours":21.21676113465424,"endHours":22.63183518339404,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:03","startHours":22.63183518339404,"endHours":24.04690923213384,"quality":"inauspicious"},{"name":"Udveg","start":"00:03","end":"01:28","startHours":24.04690923213384,"endHours":25.46198328087364,"quality":"inauspicious"},{"name":"Chala","start":"01:28","end":"02:53","startHours":25.46198328087364,"endHours":26.877057329613436,"quality":"neutral"},{"name":"Labha","start":"02:53","end":"04:18","startHours":26.877057329613436,"endHours":28.292131378353236,"quality":"auspicious"},{"name":"Amṛta","start":"04:18","end":"05:42","startHours":28.292131378353236,"endHours":29.707205427093037,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:42","end":"06:42","startHours":5.707205427093036,"endHours":6.707205427093036,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:42","end":"07:42","startHours":6.707205427093036,"endHours":7.707205427093036,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:42","end":"08:42","startHours":7.707205427093036,"endHours":8.707205427093037,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:42","end":"09:42","startHours":8.707205427093037,"endHours":9.707205427093037,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:42","end":"10:42","startHours":9.707205427093037,"endHours":10.707205427093037,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:42","end":"11:42","startHours":10.707205427093037,"endHours":11.707205427093037,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:42","end":"12:42","startHours":11.707205427093037,"endHours":12.707205427093037,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:42","end":"13:42","startHours":12.707205427093037,"endHours":13.707205427093037,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:42","end":"14:42","startHours":13.707205427093037,"endHours":14.707205427093037,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:42","end":"15:42","startHours":14.707205427093037,"endHours":15.707205427093037,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:42","end":"16:42","startHours":15.707205427093037,"endHours":16.707205427093037,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:42","end":"17:42","startHours":16.707205427093037,"endHours":17.707205427093037,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:42","end":"18:42","startHours":17.707205427093037,"endHours":18.707205427093037,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:42","end":"19:42","startHours":18.707205427093037,"endHours":19.707205427093037,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:42","end":"20:42","startHours":19.707205427093037,"endHours":20.707205427093037,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:42","end":"21:42","startHours":20.707205427093037,"endHours":21.707205427093037,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:42","end":"22:42","startHours":21.707205427093037,"endHours":22.707205427093037,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:42","end":"23:42","startHours":22.707205427093037,"endHours":23.707205427093037,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:42","end":"00:42","startHours":23.707205427093037,"endHours":24.707205427093037,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:42","end":"01:42","startHours":24.707205427093037,"endHours":25.707205427093037,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:42","end":"02:42","startHours":25.707205427093037,"endHours":26.707205427093037,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:42","end":"03:42","startHours":26.707205427093037,"endHours":27.707205427093037,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:42","end":"04:42","startHours":27.707205427093037,"endHours":28.707205427093037,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:42","end":"05:42","startHours":28.707205427093037,"endHours":29.707205427093037,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Mṛtyu","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":-6.546501054301961,"eotMinutes":13.743446071969673,"ayanamsa":25.3864}},"calendars":{"vikram_samvat":2166,"vikram_samvatsara":"Citrabhānu","saka_samvat":2031,"saka_samvatsara":"Śukla","bengali_samvat":1516,"malayalam_era":1285,"nanakshahi_year":640,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","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":"Kārtika Kṛṣṇa Dvitīyā · Vikram 2166 Citrabhānu · Śaka 2031 Śukla"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 10, 2109 CE · Perth, Australia · Vidhyamitra","description":"October 10, 2109 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:42, sūryāsta 18:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2109-10-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2109-10-10","sa":"https://sa.vidhyamitra.com/city/perth/2109-10-10","hi":"https://hi.vidhyamitra.com/city/perth/2109-10-10","x-default":"https://vidhyamitra.com/city/perth/2109-10-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T13:23:19.385Z","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":"2026-06-02T13:23:19.385Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T13:23:19.385Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}