{"id":"vidhyamitra:city-day:perth:1985-10-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1985-10-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1985-10-27","date_display":"October 27, 1985 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":1985,"month":10,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446365.770833,"kali_year":5087,"ahargana":1857900.2708,"sun":{"sidereal_longitude":189.2453,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":350.592,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":161.3467,"elapsed_within_tithi_degrees":5.3467},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.592,"elapsed_within_degrees":3.9253},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":179.8373},"karana":{"half_tithi_index":26,"name":"Gara"},"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":1985,"month":10,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446365.770833,"ahargana":1857900.2708,"kali_year":5087,"ayanamsa_lahiri":23.6549,"grahas":{"sun":{"sidereal_longitude":189.91369499999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":351.547695,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false,"latitude":-2.1738},"mars":{"sidereal_longitude":156.14519500000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":210.42829499999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":285.226095,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":169.62109499999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":213.52779499999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":19.5028,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":199.5028,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"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":1985,"month":10,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446365.770833,"kali_year":5087,"ahargana":1857900.2708,"sun":{"sidereal_longitude":189.2453,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":350.592,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":161.3467,"elapsed_within_tithi_degrees":5.3467},"nakshatra":{"number":27,"name":"Revatī","pada":2,"moon_longitude":350.592,"elapsed_within_degrees":3.9253},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":179.8373},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.174,"elongation":161.347},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.174,"opposition_distance":18.653}},"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":"05:24","sunsetLocal":"18:37","solarNoonLocal":"12:00","dayLengthHours":13.213373445070808,"dayLengthDisplay":"13 Hours 12 Mins 48 Secs","nightLengthDisplay":"10 Hours 47 Mins 12 Secs","moonriseLocal":"16:59","moonsetLocal":"04:35","rahuKala":{"name":"Rāhu Kāla","start":"16:57","end":"18:37","startHours":16.9583066475363,"endHours":18.60997832817015,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:00","end":"13:39","startHours":12.003291605634747,"endHours":13.654963286268597,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:18","end":"16:57","startHours":15.306634966902449,"endHours":16.9583066475363,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:29","end":"08:55","startHours":8.479725353615866,"endHours":8.920171135118224,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:57","end":"06:18","startHours":5.9471621099772936,"endHours":6.2995187351791815,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:34","end":"12:27","startHours":11.562845824132387,"endHours":12.443737387137107,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:31","startHours":3.634821757089902,"endHours":4.515713320094623,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:18","end":"05:24","startHours":4.295490429343443,"endHours":5.396604883099343,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"15:05","startHours":14.205520513146547,"endHours":15.086412076151268,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:25","end":"18:49","startHours":18.40997832817015,"endHours":18.80997832817015,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:37","end":"19:10","startHours":18.60997832817015,"endHours":19.1605355550481,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:22","end":"20:07","startHours":18.35997832817015,"endHours":20.10997832817015,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:34","end":"00:27","startHours":23.562845824132385,"endHours":24.44373738713711,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:24","end":"07:03","startHours":5.396604883099343,"endHours":7.048276563733194,"quality":"inauspicious"},{"name":"Chala","start":"07:03","end":"08:42","startHours":7.048276563733194,"endHours":8.699948244367045,"quality":"neutral"},{"name":"Labha","start":"08:42","end":"10:21","startHours":8.699948244367045,"endHours":10.351619925000897,"quality":"auspicious"},{"name":"Amṛta","start":"10:21","end":"12:00","startHours":10.351619925000897,"endHours":12.003291605634747,"quality":"auspicious"},{"name":"Kāla","start":"12:00","end":"13:39","startHours":12.003291605634747,"endHours":13.654963286268597,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:18","startHours":13.654963286268597,"endHours":15.306634966902449,"quality":"auspicious"},{"name":"Roga","start":"15:18","end":"16:57","startHours":15.306634966902449,"endHours":16.9583066475363,"quality":"inauspicious"},{"name":"Udveg","start":"16:57","end":"18:37","startHours":16.9583066475363,"endHours":18.60997832817015,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:37","end":"19:57","startHours":18.60997832817015,"endHours":19.9583066475363,"quality":"auspicious"},{"name":"Roga","start":"19:57","end":"21:18","startHours":19.9583066475363,"endHours":21.30663496690245,"quality":"inauspicious"},{"name":"Udveg","start":"21:18","end":"22:39","startHours":21.30663496690245,"endHours":22.654963286268597,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:00","startHours":22.654963286268597,"endHours":24.003291605634747,"quality":"neutral"},{"name":"Labha","start":"00:00","end":"01:21","startHours":24.003291605634747,"endHours":25.351619925000897,"quality":"auspicious"},{"name":"Amṛta","start":"01:21","end":"02:42","startHours":25.351619925000897,"endHours":26.699948244367043,"quality":"auspicious"},{"name":"Kāla","start":"02:42","end":"04:03","startHours":26.699948244367043,"endHours":28.048276563733193,"quality":"inauspicious"},{"name":"Śubha","start":"04:03","end":"05:24","startHours":28.048276563733193,"endHours":29.396604883099343,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:24","end":"06:24","startHours":5.396604883099343,"endHours":6.396604883099343,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:24","end":"07:24","startHours":6.396604883099343,"endHours":7.396604883099343,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:24","end":"08:24","startHours":7.396604883099343,"endHours":8.396604883099343,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:24","end":"09:24","startHours":8.396604883099343,"endHours":9.396604883099343,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:24","end":"10:24","startHours":9.396604883099343,"endHours":10.396604883099343,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:24","end":"11:24","startHours":10.396604883099343,"endHours":11.396604883099343,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:24","end":"12:24","startHours":11.396604883099343,"endHours":12.396604883099343,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:24","end":"13:24","startHours":12.396604883099343,"endHours":13.396604883099343,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:24","end":"14:24","startHours":13.396604883099343,"endHours":14.396604883099343,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:24","end":"15:24","startHours":14.396604883099343,"endHours":15.396604883099343,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:24","end":"16:24","startHours":15.396604883099343,"endHours":16.396604883099343,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:24","end":"17:24","startHours":16.396604883099343,"endHours":17.396604883099343,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:24","end":"18:24","startHours":17.396604883099343,"endHours":18.396604883099343,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:24","end":"19:24","startHours":18.396604883099343,"endHours":19.396604883099343,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:24","end":"20:24","startHours":19.396604883099343,"endHours":20.396604883099343,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:24","end":"21:24","startHours":20.396604883099343,"endHours":21.396604883099343,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:24","end":"22:24","startHours":21.396604883099343,"endHours":22.396604883099343,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:24","end":"23:24","startHours":22.396604883099343,"endHours":23.396604883099343,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:24","end":"00:24","startHours":23.396604883099343,"endHours":24.396604883099343,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:24","end":"01:24","startHours":24.396604883099343,"endHours":25.396604883099343,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:24","end":"02:24","startHours":25.396604883099343,"endHours":26.396604883099343,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:24","end":"03:24","startHours":26.396604883099343,"endHours":27.396604883099343,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:24","end":"04:24","startHours":27.396604883099343,"endHours":28.396604883099343,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:24","end":"05:24","startHours":28.396604883099343,"endHours":29.396604883099343,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.704344151737539,"eotMinutes":16.360503661915228,"ayanamsa":23.6549}},"calendars":{"vikram_samvat":2042,"vikram_samvatsara":"Bahudhānya","saka_samvat":1907,"saka_samvatsara":"Krodhana","bengali_samvat":1392,"malayalam_era":1161,"nanakshahi_year":516,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","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":"Āśvina Śukla Caturdaśī · Vikram 2042 Bahudhānya · Śaka 1907 Krodhana"},"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 27, 1985 CE · Perth, Australia · Vidhyamitra","description":"October 27, 1985 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 05:24, sūryāsta 18:37.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1985-10-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1985-10-27","sa":"https://sa.vidhyamitra.com/city/perth/1985-10-27","hi":"https://hi.vidhyamitra.com/city/perth/1985-10-27","x-default":"https://vidhyamitra.com/city/perth/1985-10-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T01:50:17.436Z","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":"2026-05-31T01:50:17.436Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T01:50:17.436Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}