{"id":"vidhyamitra:city-day:perth:1968-10-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1968-10-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1968-10-15","date_display":"October 15, 1968 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":1968,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2440144.770833,"kali_year":5070,"ahargana":1851679.2708,"sun":{"sidereal_longitude":177.6758,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":95.0061,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":277.3303,"elapsed_within_tithi_degrees":1.3303},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.0061,"elapsed_within_degrees":1.6728},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.6819},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1968,"month":10,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2440144.770833,"ahargana":1851679.2708,"kali_year":5070,"ayanamsa_lahiri":23.417,"grahas":{"sun":{"sidereal_longitude":178.33318299999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":92.85718300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":4.3278},"mars":{"sidereal_longitude":141.51878299999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":180.33698299999992,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":151.140283,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":209.493783,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":359.274083,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":349.1213,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":169.1213,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":1968,"month":10,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2440144.770833,"kali_year":5070,"ahargana":1851679.2708,"sun":{"sidereal_longitude":177.6758,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":95.0061,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":277.3303,"elapsed_within_tithi_degrees":1.3303},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":95.0061,"elapsed_within_degrees":1.6728},"yoga":{"number":21,"name":"Siddha","sum_longitude":272.6819},"karana":{"half_tithi_index":46,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.328,"elongation":82.67},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.328,"opposition_distance":97.33}},"eclipse_window_40days":[{"offset_days":7,"type":"solar","occurs":true,"moon_latitude":-1.277,"elongation":0.601}]},"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":"05:36","sunsetLocal":"18:27","solarNoonLocal":"12:02","dayLengthHours":12.844013963025827,"dayLengthDisplay":"12 Hours 50 Mins 38 Secs","nightLengthDisplay":"11 Hours 09 Mins 22 Secs","moonriseLocal":"01:12","moonsetLocal":"11:28","rahuKala":{"name":"Rāhu Kāla","start":"15:14","end":"16:51","startHours":15.239356317901322,"endHours":16.844858063279553,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:49","end":"10:25","startHours":8.81734933638841,"endHours":10.422851081766638,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:02","end":"13:38","startHours":12.028352827144868,"endHours":13.633854572523095,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:02","startHours":8.603282437004648,"endHours":9.031416235772173,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:08","end":"06:29","startHours":6.141513094091364,"endHours":6.4840201331053855,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:36","end":"12:27","startHours":11.600219028377339,"endHours":12.456486625912394,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:54","end":"04:45","startHours":3.8938106505618437,"endHours":4.750078248096899,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:32","end":"05:36","startHours":4.536011348713135,"endHours":5.606345845631954,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:02","startHours":14.169021820982504,"endHours":15.02528941851756,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:15","end":"18:39","startHours":18.25035980865778,"endHours":18.65035980865778,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:27","end":"18:59","startHours":18.45035980865778,"endHours":18.98552705711719,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:12","end":"19:57","startHours":18.20035980865778,"endHours":19.95035980865778,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:36","end":"00:27","startHours":23.60021902837734,"endHours":24.45648662591239,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:36","end":"07:13","startHours":5.606345845631954,"endHours":7.211847591010182,"quality":"inauspicious"},{"name":"Udveg","start":"07:13","end":"08:49","startHours":7.211847591010182,"endHours":8.81734933638841,"quality":"inauspicious"},{"name":"Chala","start":"08:49","end":"10:25","startHours":8.81734933638841,"endHours":10.422851081766638,"quality":"neutral"},{"name":"Labha","start":"10:25","end":"12:02","startHours":10.422851081766638,"endHours":12.028352827144868,"quality":"auspicious"},{"name":"Amṛta","start":"12:02","end":"13:38","startHours":12.028352827144868,"endHours":13.633854572523095,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:14","startHours":13.633854572523095,"endHours":15.239356317901322,"quality":"inauspicious"},{"name":"Śubha","start":"15:14","end":"16:51","startHours":15.239356317901322,"endHours":16.844858063279553,"quality":"auspicious"},{"name":"Roga","start":"16:51","end":"18:27","startHours":16.844858063279553,"endHours":18.45035980865778,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:27","end":"19:51","startHours":18.45035980865778,"endHours":19.844858063279553,"quality":"inauspicious"},{"name":"Śubha","start":"19:51","end":"21:14","startHours":19.844858063279553,"endHours":21.239356317901322,"quality":"auspicious"},{"name":"Roga","start":"21:14","end":"22:38","startHours":21.239356317901322,"endHours":22.633854572523095,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:02","startHours":22.633854572523095,"endHours":24.028352827144865,"quality":"inauspicious"},{"name":"Chala","start":"00:02","end":"01:25","startHours":24.028352827144865,"endHours":25.422851081766638,"quality":"neutral"},{"name":"Labha","start":"01:25","end":"02:49","startHours":25.422851081766638,"endHours":26.81734933638841,"quality":"auspicious"},{"name":"Amṛta","start":"02:49","end":"04:13","startHours":26.81734933638841,"endHours":28.211847591010184,"quality":"auspicious"},{"name":"Kāla","start":"04:13","end":"05:36","startHours":28.211847591010184,"endHours":29.606345845631953,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:36","end":"06:36","startHours":5.606345845631954,"endHours":6.606345845631954,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:36","end":"07:36","startHours":6.606345845631954,"endHours":7.606345845631954,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:36","end":"08:36","startHours":7.606345845631954,"endHours":8.606345845631953,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:36","end":"09:36","startHours":8.606345845631953,"endHours":9.606345845631953,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:36","end":"10:36","startHours":9.606345845631953,"endHours":10.606345845631953,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:36","end":"11:36","startHours":10.606345845631953,"endHours":11.606345845631953,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:36","end":"12:36","startHours":11.606345845631953,"endHours":12.606345845631953,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:36","end":"13:36","startHours":12.606345845631953,"endHours":13.606345845631953,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:36","end":"14:36","startHours":13.606345845631953,"endHours":14.606345845631953,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:36","end":"15:36","startHours":14.606345845631953,"endHours":15.606345845631953,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:36","end":"16:36","startHours":15.606345845631953,"endHours":16.606345845631953,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:36","end":"17:36","startHours":16.606345845631953,"endHours":17.606345845631953,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:36","end":"18:36","startHours":17.606345845631953,"endHours":18.606345845631953,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:36","end":"19:36","startHours":18.606345845631953,"endHours":19.606345845631953,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:36","end":"20:36","startHours":19.606345845631953,"endHours":20.606345845631953,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:36","end":"21:36","startHours":20.606345845631953,"endHours":21.606345845631953,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:36","end":"22:36","startHours":21.606345845631953,"endHours":22.606345845631953,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:36","end":"23:36","startHours":22.606345845631953,"endHours":23.606345845631953,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:36","end":"00:36","startHours":23.606345845631953,"endHours":24.606345845631953,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:36","end":"01:36","startHours":24.606345845631953,"endHours":25.606345845631953,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:36","end":"02:36","startHours":25.606345845631953,"endHours":26.606345845631953,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:36","end":"03:36","startHours":26.606345845631953,"endHours":27.606345845631953,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:36","end":"04:36","startHours":27.606345845631953,"endHours":28.606345845631953,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:36","end":"05:36","startHours":28.606345845631953,"endHours":29.606345845631953,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","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":-8.475350120946224,"eotMinutes":14.85683037130801,"ayanamsa":23.417}},"calendars":{"vikram_samvat":2025,"vikram_samvatsara":"Durmati","saka_samvat":1890,"saka_samvatsara":"Kīlaka","bengali_samvat":1375,"malayalam_era":1144,"nanakshahi_year":499,"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 Navamī · Vikram 2025 Durmati · Śaka 1890 Kīlaka"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 15, 1968 CE · Perth, Australia · Vidhyamitra","description":"October 15, 1968 CE for Perth, Australia: Kṛṣṇa Navamī, sūryodaya 05:36, sūryāsta 18:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1968-10-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1968-10-15","sa":"https://sa.vidhyamitra.com/city/perth/1968-10-15","hi":"https://hi.vidhyamitra.com/city/perth/1968-10-15","x-default":"https://vidhyamitra.com/city/perth/1968-10-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:42:52.238Z","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":"2026-05-31T23:42:52.238Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:42:52.238Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}