{"id":"vidhyamitra:city-day:perth:2148-10-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2148-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2148-10-04","date_display":"October 4, 2148 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":2148,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505877.770833,"kali_year":5250,"ahargana":1917412.2708,"sun":{"sidereal_longitude":164.2568,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":63.0531,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":258.7963,"elapsed_within_tithi_degrees":6.7963},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":63.0531,"elapsed_within_degrees":9.7197},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.3098},"karana":{"half_tithi_index":43,"name":"Bava"},"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":2148,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2505877.770833,"ahargana":1917412.2708,"kali_year":5250,"ayanamsa_lahiri":25.931,"grahas":{"sun":{"sidereal_longitude":165.36329899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":67.36699900000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":-3.0798},"mars":{"sidereal_longitude":50.05899899999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":151.21909900000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":195.00289899999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":131.236199,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":46.30199900000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":106.2707,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":286.2707,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2148,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2505877.770833,"kali_year":5250,"ahargana":1917412.2708,"sun":{"sidereal_longitude":164.2568,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":63.0531,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":258.7963,"elapsed_within_tithi_degrees":6.7963},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":63.0531,"elapsed_within_degrees":9.7197},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.3098},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.08,"elongation":101.204},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.08,"opposition_distance":78.796}},"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":"05:49","sunsetLocal":"18:20","solarNoonLocal":"12:04","dayLengthHours":12.503918178750432,"dayLengthDisplay":"12 Hours 30 Mins 14 Secs","nightLengthDisplay":"11 Hours 29 Mins 46 Secs","moonriseLocal":"00:32","moonsetLocal":"10:33","rahuKala":{"name":"Rāhu Kāla","start":"10:31","end":"12:04","startHours":10.511359174528025,"endHours":12.07434894687183,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:12","end":"16:46","startHours":15.200328491559437,"endHours":16.76331826390324,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:23","end":"08:57","startHours":7.3853796298404175,"endHours":8.948369402184221,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:09","startHours":8.739970765871714,"endHours":9.156768038496729,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:41","startHours":6.343386448277881,"endHours":6.676824266377893,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:29","startHours":11.657551674246815,"endHours":12.491146219496844,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:09","end":"04:59","startHours":4.155200766996556,"endHours":4.988795312246585,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:49","startHours":4.780396675934078,"endHours":5.8223898574966135,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:00","startHours":14.1583353099969,"endHours":14.991929855246928,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.126308036247046,"endHours":18.526308036247045,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:51","startHours":18.326308036247045,"endHours":18.847304627028315,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.076308036247045,"endHours":19.826308036247045,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:29","startHours":23.657551674246815,"endHours":24.491146219496844,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:49","end":"07:23","startHours":5.8223898574966135,"endHours":7.3853796298404175,"quality":"neutral"},{"name":"Labha","start":"07:23","end":"08:57","startHours":7.3853796298404175,"endHours":8.948369402184221,"quality":"auspicious"},{"name":"Amṛta","start":"08:57","end":"10:31","startHours":8.948369402184221,"endHours":10.511359174528025,"quality":"auspicious"},{"name":"Kāla","start":"10:31","end":"12:04","startHours":10.511359174528025,"endHours":12.07434894687183,"quality":"inauspicious"},{"name":"Śubha","start":"12:04","end":"13:38","startHours":12.07434894687183,"endHours":13.637338719215634,"quality":"auspicious"},{"name":"Roga","start":"13:38","end":"15:12","startHours":13.637338719215634,"endHours":15.200328491559437,"quality":"inauspicious"},{"name":"Udveg","start":"15:12","end":"16:46","startHours":15.200328491559437,"endHours":16.76331826390324,"quality":"inauspicious"},{"name":"Chala","start":"16:46","end":"18:20","startHours":16.76331826390324,"endHours":18.326308036247045,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:20","end":"19:46","startHours":18.326308036247045,"endHours":19.76331826390324,"quality":"inauspicious"},{"name":"Udveg","start":"19:46","end":"21:12","startHours":19.76331826390324,"endHours":21.20032849155944,"quality":"inauspicious"},{"name":"Chala","start":"21:12","end":"22:38","startHours":21.20032849155944,"endHours":22.637338719215634,"quality":"neutral"},{"name":"Labha","start":"22:38","end":"00:04","startHours":22.637338719215634,"endHours":24.07434894687183,"quality":"auspicious"},{"name":"Amṛta","start":"00:04","end":"01:31","startHours":24.07434894687183,"endHours":25.511359174528025,"quality":"auspicious"},{"name":"Kāla","start":"01:31","end":"02:57","startHours":25.511359174528025,"endHours":26.94836940218422,"quality":"inauspicious"},{"name":"Śubha","start":"02:57","end":"04:23","startHours":26.94836940218422,"endHours":28.38537962984042,"quality":"auspicious"},{"name":"Roga","start":"04:23","end":"05:49","startHours":28.38537962984042,"endHours":29.822389857496614,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:49","end":"06:49","startHours":5.8223898574966135,"endHours":6.8223898574966135,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:49","end":"07:49","startHours":6.8223898574966135,"endHours":7.8223898574966135,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:49","end":"08:49","startHours":7.8223898574966135,"endHours":8.822389857496614,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:49","end":"09:49","startHours":8.822389857496614,"endHours":9.822389857496614,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:49","end":"10:49","startHours":9.822389857496614,"endHours":10.822389857496614,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:49","end":"11:49","startHours":10.822389857496614,"endHours":11.822389857496614,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:49","end":"12:49","startHours":11.822389857496614,"endHours":12.822389857496614,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:49","end":"13:49","startHours":12.822389857496614,"endHours":13.822389857496614,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:49","end":"14:49","startHours":13.822389857496614,"endHours":14.822389857496614,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:49","end":"15:49","startHours":14.822389857496614,"endHours":15.822389857496614,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:49","end":"16:49","startHours":15.822389857496614,"endHours":16.822389857496614,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:49","end":"17:49","startHours":16.822389857496614,"endHours":17.822389857496614,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:49","end":"18:49","startHours":17.822389857496614,"endHours":18.822389857496614,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:49","end":"19:49","startHours":18.822389857496614,"endHours":19.822389857496614,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:49","end":"20:49","startHours":19.822389857496614,"endHours":20.822389857496614,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:49","end":"21:49","startHours":20.822389857496614,"endHours":21.822389857496614,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:49","end":"22:49","startHours":21.822389857496614,"endHours":22.822389857496614,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:49","end":"23:49","startHours":22.822389857496614,"endHours":23.822389857496614,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:49","end":"00:49","startHours":23.822389857496614,"endHours":24.822389857496614,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:49","end":"01:49","startHours":24.822389857496614,"endHours":25.822389857496614,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:49","end":"02:49","startHours":25.822389857496614,"endHours":26.822389857496614,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:49","end":"03:49","startHours":26.822389857496614,"endHours":27.822389857496614,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:49","end":"04:49","startHours":27.822389857496614,"endHours":28.822389857496614,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:49","end":"05:49","startHours":28.822389857496614,"endHours":29.822389857496614,"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","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Rākṣasa","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":-4.467599677277065,"eotMinutes":12.09706318769023,"ayanamsa":25.931}},"calendars":{"vikram_samvat":2205,"vikram_samvatsara":"Durmati","saka_samvat":2070,"saka_samvatsara":"Kīlaka","bengali_samvat":1555,"malayalam_era":1324,"nanakshahi_year":679,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","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":"Āśvina Kṛṣṇa Saptamī · Vikram 2205 Durmati · Śaka 2070 Kīlaka"},"festivals":[],"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 4, 2148 CE · Perth, Australia · Vidhyamitra","description":"October 4, 2148 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 05:49, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2148-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2148-10-04","sa":"https://sa.vidhyamitra.com/city/perth/2148-10-04","hi":"https://hi.vidhyamitra.com/city/perth/2148-10-04","x-default":"https://vidhyamitra.com/city/perth/2148-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:23:25.386Z","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":"2026-05-31T02:23:25.386Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:23:25.386Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}