{"id":"vidhyamitra:city-day:perth:1971-10-24:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1971-10-24","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1971-10-24","date_display":"October 24, 1971 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":1971,"month":10,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441248.770833,"kali_year":5073,"ahargana":1852783.2708,"sun":{"sidereal_longitude":185.8675,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":241.5625,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.695,"elapsed_within_tithi_degrees":7.695},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.5625,"elapsed_within_degrees":1.5625},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.4299},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1971,"month":10,"day":24,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2441248.770833,"ahargana":1852783.2708,"kali_year":5073,"ayanamsa_lahiri":23.4592,"grahas":{"sun":{"sidereal_longitude":186.512702,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":238.81870200000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false,"latitude":-3.398},"mars":{"sidereal_longitude":300.289002,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":196.882202,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":224.48610200000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":202.04000199999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":42.38220200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":290.6261,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.6261,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","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":1971,"month":10,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2441248.770833,"kali_year":5073,"ahargana":1852783.2708,"sun":{"sidereal_longitude":185.8675,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":241.5625,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.695,"elapsed_within_tithi_degrees":7.695},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.5625,"elapsed_within_degrees":1.5625},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":67.4299},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.398,"elongation":55.695},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.398,"opposition_distance":124.305}},"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":"05:27","sunsetLocal":"18:34","solarNoonLocal":"12:00","dayLengthHours":13.103335930065695,"dayLengthDisplay":"13 Hours 06 Mins 12 Secs","nightLengthDisplay":"10 Hours 53 Mins 48 Secs","moonriseLocal":"08:24","moonsetLocal":"22:35","rahuKala":{"name":"Rāhu Kāla","start":"16:55","end":"18:34","startHours":16.92050847241647,"endHours":18.55842546367468,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:00","end":"13:39","startHours":12.006757498641832,"endHours":13.644674489900044,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:17","end":"16:55","startHours":15.282591481158256,"endHours":16.92050847241647,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"08:57","startHours":8.512534583957647,"endHours":8.94931244829317,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:00","end":"06:21","startHours":6.001061864028389,"endHours":6.350484155496808,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.569979634306309,"endHours":12.443535362977356,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:42","end":"04:35","startHours":3.707978076266893,"endHours":4.581533804937939,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:22","end":"05:27","startHours":4.363144872770178,"endHours":5.4550895336089855,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"15:04","startHours":14.190646820319449,"endHours":15.064202548990496,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:22","end":"18:46","startHours":18.35842546367468,"endHours":18.75842546367468,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:34","end":"19:06","startHours":18.55842546367468,"endHours":19.104397794094083,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:19","end":"20:04","startHours":18.30842546367468,"endHours":20.05842546367468,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.56997963430631,"endHours":24.443535362977354,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:27","end":"07:06","startHours":5.4550895336089855,"endHours":7.093006524867198,"quality":"inauspicious"},{"name":"Chala","start":"07:06","end":"08:44","startHours":7.093006524867198,"endHours":8.73092351612541,"quality":"neutral"},{"name":"Labha","start":"08:44","end":"10:22","startHours":8.73092351612541,"endHours":10.36884050738362,"quality":"auspicious"},{"name":"Amṛta","start":"10:22","end":"12:00","startHours":10.36884050738362,"endHours":12.006757498641832,"quality":"auspicious"},{"name":"Kāla","start":"12:00","end":"13:39","startHours":12.006757498641832,"endHours":13.644674489900044,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:17","startHours":13.644674489900044,"endHours":15.282591481158256,"quality":"auspicious"},{"name":"Roga","start":"15:17","end":"16:55","startHours":15.282591481158256,"endHours":16.92050847241647,"quality":"inauspicious"},{"name":"Udveg","start":"16:55","end":"18:34","startHours":16.92050847241647,"endHours":18.55842546367468,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:34","end":"19:55","startHours":18.55842546367468,"endHours":19.92050847241647,"quality":"auspicious"},{"name":"Roga","start":"19:55","end":"21:17","startHours":19.92050847241647,"endHours":21.282591481158256,"quality":"inauspicious"},{"name":"Udveg","start":"21:17","end":"22:39","startHours":21.282591481158256,"endHours":22.644674489900044,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:00","startHours":22.644674489900044,"endHours":24.006757498641832,"quality":"neutral"},{"name":"Labha","start":"00:00","end":"01:22","startHours":24.006757498641832,"endHours":25.36884050738362,"quality":"auspicious"},{"name":"Amṛta","start":"01:22","end":"02:44","startHours":25.36884050738362,"endHours":26.730923516125408,"quality":"auspicious"},{"name":"Kāla","start":"02:44","end":"04:06","startHours":26.730923516125408,"endHours":28.0930065248672,"quality":"inauspicious"},{"name":"Śubha","start":"04:06","end":"05:27","startHours":28.0930065248672,"endHours":29.455089533608984,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:27","end":"06:27","startHours":5.4550895336089855,"endHours":6.4550895336089855,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:27","end":"07:27","startHours":6.4550895336089855,"endHours":7.4550895336089855,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:27","end":"08:27","startHours":7.4550895336089855,"endHours":8.455089533608986,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:27","end":"09:27","startHours":8.455089533608986,"endHours":9.455089533608986,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:27","end":"10:27","startHours":9.455089533608986,"endHours":10.455089533608986,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:27","end":"11:27","startHours":10.455089533608986,"endHours":11.455089533608986,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:27","end":"12:27","startHours":11.455089533608986,"endHours":12.455089533608986,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:27","end":"13:27","startHours":12.455089533608986,"endHours":13.455089533608986,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:27","end":"14:27","startHours":13.455089533608986,"endHours":14.455089533608986,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:27","end":"15:27","startHours":14.455089533608986,"endHours":15.455089533608986,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:27","end":"16:27","startHours":15.455089533608986,"endHours":16.455089533608984,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:27","end":"17:27","startHours":16.455089533608984,"endHours":17.455089533608984,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:27","end":"18:27","startHours":17.455089533608984,"endHours":18.455089533608984,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:27","end":"19:27","startHours":18.455089533608984,"endHours":19.455089533608984,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:27","end":"20:27","startHours":19.455089533608984,"endHours":20.455089533608984,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:27","end":"21:27","startHours":20.455089533608984,"endHours":21.455089533608984,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:27","end":"22:27","startHours":21.455089533608984,"endHours":22.455089533608984,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:27","end":"23:27","startHours":22.455089533608984,"endHours":23.455089533608984,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:27","end":"00:27","startHours":23.455089533608984,"endHours":24.455089533608984,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:27","end":"01:27","startHours":24.455089533608984,"endHours":25.455089533608984,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:27","end":"02:27","startHours":25.455089533608984,"endHours":26.455089533608984,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:27","end":"03:27","startHours":26.455089533608984,"endHours":27.455089533608984,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:27","end":"04:27","startHours":27.455089533608984,"endHours":28.455089533608984,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:27","end":"05:27","startHours":28.455089533608984,"endHours":29.455089533608984,"planetary_lord":"Jupiter"}],"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","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.460790389916284,"eotMinutes":16.152550081490062,"ayanamsa":23.4592}},"calendars":{"vikram_samvat":2028,"vikram_samvatsara":"Raktākṣī","saka_samvat":1893,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1378,"malayalam_era":1147,"nanakshahi_year":502,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Pañcamī · Vikram 2028 Raktākṣī · Śaka 1893 Virodhakṛt"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 24, 1971 CE · Perth, Australia · Vidhyamitra","description":"October 24, 1971 CE for Perth, Australia: Śukla Pañcamī, sūryodaya 05:27, sūryāsta 18:34.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1971-10-24","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1971-10-24","sa":"https://sa.vidhyamitra.com/city/perth/1971-10-24","hi":"https://hi.vidhyamitra.com/city/perth/1971-10-24","x-default":"https://vidhyamitra.com/city/perth/1971-10-24"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T14:07:46.097Z","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":"2026-06-02T14:07:46.097Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T14:07:46.097Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}