{"id":"vidhyamitra:city-day:perth:2037-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2037-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2037-10-01","date_display":"October 1, 2037 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":2037,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465332.770833,"kali_year":5139,"ahargana":1876867.2708,"sun":{"sidereal_longitude":163.0002,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":60.25,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.2498,"elapsed_within_tithi_degrees":5.2498},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":60.25,"elapsed_within_degrees":6.9167},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.2502},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2037,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465332.770833,"ahargana":1876867.2708,"kali_year":5139,"ayanamsa_lahiri":24.3803,"grahas":{"sun":{"sidereal_longitude":163.83701599999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":57.241716,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":-2.5334},"mars":{"sidereal_longitude":40.331616,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":160.95661599999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":91.19561599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"venus":{"sidereal_longitude":208.69611600000007,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":135.39891599999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":94.5399,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":274.5399,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2037,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465332.770833,"kali_year":5139,"ahargana":1876867.2708,"sun":{"sidereal_longitude":163.0002,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":60.25,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.2498,"elapsed_within_tithi_degrees":5.2498},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":60.25,"elapsed_within_degrees":6.9167},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.2502},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.533,"elongation":102.75},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.533,"opposition_distance":77.25}},"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":"05:53","sunsetLocal":"18:17","solarNoonLocal":"12:05","dayLengthHours":12.402576092995593,"dayLengthDisplay":"12 Hours 24 Mins 09 Secs","nightLengthDisplay":"11 Hours 35 Mins 51 Secs","moonriseLocal":"23:58","moonsetLocal":"10:00","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:11","startHours":13.640159275181377,"endHours":15.190481286805825,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:53","end":"07:26","startHours":5.888549217059131,"endHours":7.43887122868358,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:59","end":"10:32","startHours":8.98919324030803,"endHours":10.539515251932478,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:47","end":"09:12","startHours":8.782483638758102,"endHours":9.195902841857956,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:24","end":"06:44","startHours":6.405323220933948,"endHours":6.73605858341383,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:30","startHours":11.676418060457074,"endHours":12.50325646665678,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:04","startHours":4.234872404659718,"endHours":5.061710810859425,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:53","startHours":4.855001209309498,"endHours":5.888549217059131,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.156933279056192,"endHours":14.983771685255897,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:05","end":"18:29","startHours":18.091125310054725,"endHours":18.491125310054723,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:17","end":"18:48","startHours":18.291125310054724,"endHours":18.80789931392954,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:02","end":"19:47","startHours":18.041125310054724,"endHours":19.791125310054724,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:30","startHours":23.676418060457074,"endHours":24.50325646665678,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:53","end":"07:26","startHours":5.888549217059131,"endHours":7.43887122868358,"quality":"auspicious"},{"name":"Roga","start":"07:26","end":"08:59","startHours":7.43887122868358,"endHours":8.98919324030803,"quality":"inauspicious"},{"name":"Udveg","start":"08:59","end":"10:32","startHours":8.98919324030803,"endHours":10.539515251932478,"quality":"inauspicious"},{"name":"Chala","start":"10:32","end":"12:05","startHours":10.539515251932478,"endHours":12.089837263556927,"quality":"neutral"},{"name":"Labha","start":"12:05","end":"13:38","startHours":12.089837263556927,"endHours":13.640159275181377,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:11","startHours":13.640159275181377,"endHours":15.190481286805825,"quality":"auspicious"},{"name":"Kāla","start":"15:11","end":"16:44","startHours":15.190481286805825,"endHours":16.740803298430276,"quality":"inauspicious"},{"name":"Śubha","start":"16:44","end":"18:17","startHours":16.740803298430276,"endHours":18.291125310054724,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:17","end":"19:44","startHours":18.291125310054724,"endHours":19.740803298430276,"quality":"auspicious"},{"name":"Kāla","start":"19:44","end":"21:11","startHours":19.740803298430276,"endHours":21.190481286805827,"quality":"inauspicious"},{"name":"Śubha","start":"21:11","end":"22:38","startHours":21.190481286805827,"endHours":22.640159275181375,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:05","startHours":22.640159275181375,"endHours":24.089837263556927,"quality":"inauspicious"},{"name":"Udveg","start":"00:05","end":"01:32","startHours":24.089837263556927,"endHours":25.539515251932478,"quality":"inauspicious"},{"name":"Chala","start":"01:32","end":"02:59","startHours":25.539515251932478,"endHours":26.98919324030803,"quality":"neutral"},{"name":"Labha","start":"02:59","end":"04:26","startHours":26.98919324030803,"endHours":28.43887122868358,"quality":"auspicious"},{"name":"Amṛta","start":"04:26","end":"05:53","startHours":28.43887122868358,"endHours":29.88854921705913,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.888549217059131,"endHours":6.888549217059131,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.888549217059131,"endHours":7.888549217059131,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.888549217059131,"endHours":8.888549217059131,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.888549217059131,"endHours":9.888549217059131,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.888549217059131,"endHours":10.888549217059131,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.888549217059131,"endHours":11.888549217059131,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.888549217059131,"endHours":12.888549217059131,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.888549217059131,"endHours":13.888549217059131,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.888549217059131,"endHours":14.888549217059131,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.888549217059131,"endHours":15.888549217059131,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.888549217059131,"endHours":16.88854921705913,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.88854921705913,"endHours":17.88854921705913,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.88854921705913,"endHours":18.88854921705913,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.88854921705913,"endHours":19.88854921705913,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.88854921705913,"endHours":20.88854921705913,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.88854921705913,"endHours":21.88854921705913,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.88854921705913,"endHours":22.88854921705913,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.88854921705913,"endHours":23.88854921705913,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.88854921705913,"endHours":24.88854921705913,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.88854921705913,"endHours":25.88854921705913,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.88854921705913,"endHours":26.88854921705913,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.88854921705913,"endHours":27.88854921705913,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.88854921705913,"endHours":28.88854921705913,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.88854921705913,"endHours":29.88854921705913,"planetary_lord":"Moon"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"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":-3.2588573687526177,"eotMinutes":11.167764186584405,"ayanamsa":24.3803}},"calendars":{"vikram_samvat":2094,"vikram_samvatsara":"Pramoda","saka_samvat":1959,"saka_samvatsara":"Piṅgala","bengali_samvat":1444,"malayalam_era":1213,"nanakshahi_year":568,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Saptamī · Vikram 2094 Pramoda · Śaka 1959 Piṅgala"},"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":"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":[]},"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 1, 2037 CE · Perth, Australia · Vidhyamitra","description":"October 1, 2037 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 05:53, sūryāsta 18:17.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2037-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2037-10-01","sa":"https://sa.vidhyamitra.com/city/perth/2037-10-01","hi":"https://hi.vidhyamitra.com/city/perth/2037-10-01","x-default":"https://vidhyamitra.com/city/perth/2037-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T20:33:21.270Z","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":"2026-05-15T20:33:21.270Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T20:33:21.270Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}