{"id":"vidhyamitra:city-day:perth:2017-10-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2017-10-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-10-07","date_display":"October 7, 2017 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":2017,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458033.770833,"kali_year":5119,"ahargana":1869568.2708,"sun":{"sidereal_longitude":169.0822,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":4.1726,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":195.0904,"elapsed_within_tithi_degrees":3.0904},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.1726,"elapsed_within_degrees":4.1726},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":173.2548},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2017,"month":10,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458033.770833,"ahargana":1869568.2708,"kali_year":5119,"ayanamsa_lahiri":24.1012,"grahas":{"sun":{"sidereal_longitude":169.86929199999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":6.4998919999999885,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-4.005},"mars":{"sidereal_longitude":145.680092,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":168.17179199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":184.855192,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":146.54959200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":238.355592,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":121.276,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":301.276,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2017,"month":10,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458033.770833,"kali_year":5119,"ahargana":1869568.2708,"sun":{"sidereal_longitude":169.0822,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":4.1726,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":195.0904,"elapsed_within_tithi_degrees":3.0904},"nakshatra":{"number":1,"name":"Aśvinī","pada":2,"moon_longitude":4.1726,"elapsed_within_degrees":4.1726},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":173.2548},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.005,"elongation":164.91},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.005,"opposition_distance":15.09}},"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":"05:46","sunsetLocal":"18:21","solarNoonLocal":"12:04","dayLengthHours":12.591707004023412,"dayLengthDisplay":"12 Hours 35 Mins 30 Secs","nightLengthDisplay":"11 Hours 24 Mins 30 Secs","moonriseLocal":"19:37","moonsetLocal":"06:43","rahuKala":{"name":"Rāhu Kāla","start":"08:55","end":"10:29","startHours":8.912060745510487,"endHours":10.486024121013413,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:38","end":"15:12","startHours":13.633950872019266,"endHours":15.207914247522194,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:46","end":"07:20","startHours":5.7641339945046335,"endHours":7.33809737000756,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:42","end":"09:07","startHours":8.702198962110096,"endHours":9.121922528910877,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:17","end":"06:37","startHours":6.288788453005609,"endHours":6.624567306446234,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:29","startHours":11.640263929715559,"endHours":12.479711063317119,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:05","end":"04:55","startHours":4.085239727301512,"endHours":4.924686860903073,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:46","startHours":4.714825077502683,"endHours":5.7641339945046335,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:00","startHours":14.158605330520242,"endHours":14.998052464121804,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.155840998528046,"endHours":18.555840998528044,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:53","startHours":18.355840998528045,"endHours":18.88049545702902,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.105840998528045,"endHours":19.855840998528045,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:29","startHours":23.64026392971556,"endHours":24.47971106331712,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:46","end":"07:20","startHours":5.7641339945046335,"endHours":7.33809737000756,"quality":"inauspicious"},{"name":"Śubha","start":"07:20","end":"08:55","startHours":7.33809737000756,"endHours":8.912060745510487,"quality":"auspicious"},{"name":"Roga","start":"08:55","end":"10:29","startHours":8.912060745510487,"endHours":10.486024121013413,"quality":"inauspicious"},{"name":"Udveg","start":"10:29","end":"12:04","startHours":10.486024121013413,"endHours":12.059987496516339,"quality":"inauspicious"},{"name":"Chala","start":"12:04","end":"13:38","startHours":12.059987496516339,"endHours":13.633950872019266,"quality":"neutral"},{"name":"Labha","start":"13:38","end":"15:12","startHours":13.633950872019266,"endHours":15.207914247522194,"quality":"auspicious"},{"name":"Amṛta","start":"15:12","end":"16:47","startHours":15.207914247522194,"endHours":16.781877623025117,"quality":"auspicious"},{"name":"Kāla","start":"16:47","end":"18:21","startHours":16.781877623025117,"endHours":18.355840998528045,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:21","end":"19:47","startHours":18.355840998528045,"endHours":19.781877623025117,"quality":"auspicious"},{"name":"Amṛta","start":"19:47","end":"21:12","startHours":19.781877623025117,"endHours":21.20791424752219,"quality":"auspicious"},{"name":"Kāla","start":"21:12","end":"22:38","startHours":21.20791424752219,"endHours":22.633950872019266,"quality":"inauspicious"},{"name":"Śubha","start":"22:38","end":"00:04","startHours":22.633950872019266,"endHours":24.05998749651634,"quality":"auspicious"},{"name":"Roga","start":"00:04","end":"01:29","startHours":24.05998749651634,"endHours":25.48602412101341,"quality":"inauspicious"},{"name":"Udveg","start":"01:29","end":"02:55","startHours":25.48602412101341,"endHours":26.912060745510487,"quality":"inauspicious"},{"name":"Chala","start":"02:55","end":"04:20","startHours":26.912060745510487,"endHours":28.33809737000756,"quality":"neutral"},{"name":"Labha","start":"04:20","end":"05:46","startHours":28.33809737000756,"endHours":29.764133994504633,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.7641339945046335,"endHours":6.7641339945046335,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.7641339945046335,"endHours":7.7641339945046335,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.7641339945046335,"endHours":8.764133994504633,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.764133994504633,"endHours":9.764133994504633,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.764133994504633,"endHours":10.764133994504633,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.764133994504633,"endHours":11.764133994504633,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.764133994504633,"endHours":12.764133994504633,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.764133994504633,"endHours":13.764133994504633,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.764133994504633,"endHours":14.764133994504633,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.764133994504633,"endHours":15.764133994504633,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.764133994504633,"endHours":16.764133994504633,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.764133994504633,"endHours":17.764133994504633,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.764133994504633,"endHours":18.764133994504633,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.764133994504633,"endHours":19.764133994504633,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.764133994504633,"endHours":20.764133994504633,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.764133994504633,"endHours":21.764133994504633,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.764133994504633,"endHours":22.764133994504633,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.764133994504633,"endHours":23.764133994504633,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.764133994504633,"endHours":24.764133994504633,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.764133994504633,"endHours":25.764133994504633,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.764133994504633,"endHours":26.764133994504633,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.764133994504633,"endHours":27.764133994504633,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.764133994504633,"endHours":28.764133994504633,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.764133994504633,"endHours":29.764133994504633,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","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":-5.5101119785255435,"eotMinutes":12.958750209019716,"ayanamsa":24.1012}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvitīyā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"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":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 7, 2017 CE · Perth, Australia · Vidhyamitra","description":"October 7, 2017 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:46, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2017-10-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2017-10-07","sa":"https://sa.vidhyamitra.com/city/perth/2017-10-07","hi":"https://hi.vidhyamitra.com/city/perth/2017-10-07","x-default":"https://vidhyamitra.com/city/perth/2017-10-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T13:25:33.832Z","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":"2026-05-15T13:25:33.832Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T13:25:33.832Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}