{"id":"vidhyamitra:city-day:perth:2115-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2115-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2115-10-18","date_display":"October 18, 2115 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":2115,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493837.770833,"kali_year":5217,"ahargana":1905372.2708,"sun":{"sidereal_longitude":177.6389,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":182.2447,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.6058,"elapsed_within_tithi_degrees":4.6058},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.2447,"elapsed_within_degrees":8.9114},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":359.8835},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2115,"month":10,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2493837.770833,"ahargana":1905372.2708,"kali_year":5217,"ayanamsa_lahiri":25.4705,"grahas":{"sun":{"sidereal_longitude":178.65231600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":181.434616,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":1.6816},"mars":{"sidereal_longitude":170.231316,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":173.604516,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":266.514816,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":201.16321600000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":354.590016,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":24.2078,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":204.2078,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":2115,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493837.770833,"kali_year":5217,"ahargana":1905372.2708,"sun":{"sidereal_longitude":177.6389,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":182.2447,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":4.6058,"elapsed_within_tithi_degrees":4.6058},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":182.2447,"elapsed_within_degrees":8.9114},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":359.8835},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.682,"elongation":4.606},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.682,"opposition_distance":175.394}},"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":"05:34","sunsetLocal":"18:29","solarNoonLocal":"12:01","dayLengthHours":12.919786198950435,"dayLengthDisplay":"12 Hours 55 Mins 11 Secs","nightLengthDisplay":"11 Hours 04 Mins 49 Secs","moonriseLocal":"05:43","moonsetLocal":"18:41","rahuKala":{"name":"Rāhu Kāla","start":"10:24","end":"12:01","startHours":10.404399088410887,"endHours":12.019372363279693,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:15","end":"16:52","startHours":15.249318913017301,"endHours":16.864292187886107,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:10","end":"08:47","startHours":7.174452538673279,"endHours":8.789425813542083,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:00","startHours":8.574096043559576,"endHours":9.004755583524592,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:06","end":"06:27","startHours":6.0978036887607425,"endHours":6.442331320732754,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:27","startHours":11.588712823314678,"endHours":12.450031903244708,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:50","end":"04:42","startHours":3.836841103944417,"endHours":4.698160183874446,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:29","end":"05:34","startHours":4.482830413891938,"endHours":5.559479263804475,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:02","startHours":14.172670063104764,"endHours":15.033989143034793,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.27926546275491,"endHours":18.67926546275491,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:01","startHours":18.47926546275491,"endHours":19.01758988771118,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.22926546275491,"endHours":19.97926546275491,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:27","startHours":23.58871282331468,"endHours":24.450031903244707,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:34","end":"07:10","startHours":5.559479263804475,"endHours":7.174452538673279,"quality":"neutral"},{"name":"Labha","start":"07:10","end":"08:47","startHours":7.174452538673279,"endHours":8.789425813542083,"quality":"auspicious"},{"name":"Amṛta","start":"08:47","end":"10:24","startHours":8.789425813542083,"endHours":10.404399088410887,"quality":"auspicious"},{"name":"Kāla","start":"10:24","end":"12:01","startHours":10.404399088410887,"endHours":12.019372363279693,"quality":"inauspicious"},{"name":"Śubha","start":"12:01","end":"13:38","startHours":12.019372363279693,"endHours":13.634345638148497,"quality":"auspicious"},{"name":"Roga","start":"13:38","end":"15:15","startHours":13.634345638148497,"endHours":15.249318913017301,"quality":"inauspicious"},{"name":"Udveg","start":"15:15","end":"16:52","startHours":15.249318913017301,"endHours":16.864292187886107,"quality":"inauspicious"},{"name":"Chala","start":"16:52","end":"18:29","startHours":16.864292187886107,"endHours":18.47926546275491,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:29","end":"19:52","startHours":18.47926546275491,"endHours":19.864292187886104,"quality":"inauspicious"},{"name":"Udveg","start":"19:52","end":"21:15","startHours":19.864292187886104,"endHours":21.2493189130173,"quality":"inauspicious"},{"name":"Chala","start":"21:15","end":"22:38","startHours":21.2493189130173,"endHours":22.634345638148496,"quality":"neutral"},{"name":"Labha","start":"22:38","end":"00:01","startHours":22.634345638148496,"endHours":24.019372363279693,"quality":"auspicious"},{"name":"Amṛta","start":"00:01","end":"01:24","startHours":24.019372363279693,"endHours":25.404399088410887,"quality":"auspicious"},{"name":"Kāla","start":"01:24","end":"02:47","startHours":25.404399088410887,"endHours":26.78942581354208,"quality":"inauspicious"},{"name":"Śubha","start":"02:47","end":"04:10","startHours":26.78942581354208,"endHours":28.17445253867328,"quality":"auspicious"},{"name":"Roga","start":"04:10","end":"05:34","startHours":28.17445253867328,"endHours":29.559479263804477,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:34","end":"06:34","startHours":5.559479263804475,"endHours":6.559479263804475,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:34","end":"07:34","startHours":6.559479263804475,"endHours":7.559479263804475,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:34","end":"08:34","startHours":7.559479263804475,"endHours":8.559479263804475,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:34","end":"09:34","startHours":8.559479263804475,"endHours":9.559479263804475,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:34","end":"10:34","startHours":9.559479263804475,"endHours":10.559479263804475,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:34","end":"11:34","startHours":10.559479263804475,"endHours":11.559479263804475,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:34","end":"12:34","startHours":11.559479263804475,"endHours":12.559479263804475,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:34","end":"13:34","startHours":12.559479263804475,"endHours":13.559479263804475,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:34","end":"14:34","startHours":13.559479263804475,"endHours":14.559479263804475,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:34","end":"15:34","startHours":14.559479263804475,"endHours":15.559479263804475,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:34","end":"16:34","startHours":15.559479263804475,"endHours":16.559479263804477,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:34","end":"17:34","startHours":16.559479263804477,"endHours":17.559479263804477,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:34","end":"18:34","startHours":17.559479263804477,"endHours":18.559479263804477,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:34","end":"19:34","startHours":18.559479263804477,"endHours":19.559479263804477,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:34","end":"20:34","startHours":19.559479263804477,"endHours":20.559479263804477,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:34","end":"21:34","startHours":20.559479263804477,"endHours":21.559479263804477,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:34","end":"22:34","startHours":21.559479263804477,"endHours":22.559479263804477,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:34","end":"23:34","startHours":22.559479263804477,"endHours":23.559479263804477,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:34","end":"00:34","startHours":23.559479263804477,"endHours":24.559479263804477,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:34","end":"01:34","startHours":24.559479263804477,"endHours":25.559479263804477,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:34","end":"02:34","startHours":25.559479263804477,"endHours":26.559479263804477,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:34","end":"03:34","startHours":26.559479263804477,"endHours":27.559479263804477,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:34","end":"04:34","startHours":27.559479263804477,"endHours":28.559479263804477,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:34","end":"05:34","startHours":28.559479263804477,"endHours":29.559479263804477,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"North","rahuVasa":"South-East","anandadiYoga":{"name":"Dhvānkṣa","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-9.354987417295192,"eotMinutes":15.395658203218455,"ayanamsa":25.4705}},"calendars":{"vikram_samvat":2172,"vikram_samvatsara":"Sarvadhāri","saka_samvat":2037,"saka_samvatsara":"Yuva","bengali_samvat":1522,"malayalam_era":1291,"nanakshahi_year":646,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Pratipada · Vikram 2172 Sarvadhāri · Śaka 2037 Yuva"},"festivals":[{"id":"sharadiya-navratri-start","name":"Śāradīya Navrātri Start","name_sanskrit":"शारदीय नवरात्रि आरम्भ","tradition":"Shakta","associated_deity":"Devī Durgā","significance":"Autumn Navrātri begins; Devī Mahiṣāsura-mardinī worship for 9 nights.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":1},{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 18, 2115 CE · Perth, Australia · Vidhyamitra","description":"October 18, 2115 CE for Perth, Australia: Śukla Pratipada, sūryodaya 05:34, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2115-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2115-10-18","sa":"https://sa.vidhyamitra.com/city/perth/2115-10-18","hi":"https://hi.vidhyamitra.com/city/perth/2115-10-18","x-default":"https://vidhyamitra.com/city/perth/2115-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T21:52:41.614Z","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":"2026-05-22T21:52:41.614Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T21:52:41.614Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}