{"id":"vidhyamitra:city-day:perth:2001-12-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2001-12-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-12-06","date_display":"December 6, 2001 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":2001,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452249.770833,"kali_year":5103,"ahargana":1863784.2708,"sun":{"sidereal_longitude":229.6355,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":115.3421,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.7065,"elapsed_within_tithi_degrees":5.7065},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.3421,"elapsed_within_degrees":8.6754},"yoga":{"number":26,"name":"Indra","sum_longitude":344.9776},"karana":{"half_tithi_index":40,"name":"Gara"},"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":2001,"month":12,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452249.770833,"ahargana":1863784.2708,"kali_year":5103,"ayanamsa_lahiri":23.88,"grahas":{"sun":{"sidereal_longitude":230.101183,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":116.58378300000004,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":3.3216},"mars":{"sidereal_longitude":304.033183,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":230.669083,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":79.912283,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":220.62528299999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":47.29608300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":67.7402,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":247.7402,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2001,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452249.770833,"kali_year":5103,"ahargana":1863784.2708,"sun":{"sidereal_longitude":229.6355,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":115.3421,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.7065,"elapsed_within_tithi_degrees":5.7065},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":115.3421,"elapsed_within_degrees":8.6754},"yoga":{"number":26,"name":"Indra","sum_longitude":344.9776},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.322,"elongation":114.293},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.322,"opposition_distance":65.707}},"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":"05:04","sunsetLocal":"19:13","solarNoonLocal":"12:08","dayLengthHours":14.140685180884475,"dayLengthDisplay":"14 Hours 08 Mins 26 Secs","nightLengthDisplay":"9 Hours 51 Mins 34 Secs","moonriseLocal":"23:09","moonsetLocal":"10:00","rahuKala":{"name":"Rāhu Kāla","start":"13:54","end":"15:41","startHours":13.907837656364698,"endHours":15.675423303975258,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:04","end":"06:50","startHours":5.069909418311902,"endHours":6.837495065922461,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:36","end":"10:22","startHours":8.60508071353302,"endHours":10.37266636114358,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:50","startHours":8.369402627184947,"endHours":8.840758799881094,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:02","startHours":5.659104634182088,"endHours":6.0361895723390075,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:37","startHours":11.66889583605799,"endHours":12.611608181450288,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.184484727527305,"endHours":4.1271970729196035,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:53","end":"05:04","startHours":3.891518986571529,"endHours":5.069909418311902,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:26","startHours":14.497032872234884,"endHours":15.439745217627182,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.010594599196377,"endHours":19.410594599196376,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:48","startHours":19.210594599196376,"endHours":19.799789815066564,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.960594599196376,"endHours":20.710594599196376,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:37","startHours":23.668895836057988,"endHours":24.61160818145029,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:04","end":"06:50","startHours":5.069909418311902,"endHours":6.837495065922461,"quality":"auspicious"},{"name":"Roga","start":"06:50","end":"08:36","startHours":6.837495065922461,"endHours":8.60508071353302,"quality":"inauspicious"},{"name":"Udveg","start":"08:36","end":"10:22","startHours":8.60508071353302,"endHours":10.37266636114358,"quality":"inauspicious"},{"name":"Chala","start":"10:22","end":"12:08","startHours":10.37266636114358,"endHours":12.140252008754139,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:54","startHours":12.140252008754139,"endHours":13.907837656364698,"quality":"auspicious"},{"name":"Amṛta","start":"13:54","end":"15:41","startHours":13.907837656364698,"endHours":15.675423303975258,"quality":"auspicious"},{"name":"Kāla","start":"15:41","end":"17:27","startHours":15.675423303975258,"endHours":17.443008951585817,"quality":"inauspicious"},{"name":"Śubha","start":"17:27","end":"19:13","startHours":17.443008951585817,"endHours":19.210594599196376,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:13","end":"20:27","startHours":19.210594599196376,"endHours":20.443008951585817,"quality":"auspicious"},{"name":"Kāla","start":"20:27","end":"21:41","startHours":20.443008951585817,"endHours":21.675423303975258,"quality":"inauspicious"},{"name":"Śubha","start":"21:41","end":"22:54","startHours":21.675423303975258,"endHours":22.9078376563647,"quality":"auspicious"},{"name":"Roga","start":"22:54","end":"00:08","startHours":22.9078376563647,"endHours":24.14025200875414,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:22","startHours":24.14025200875414,"endHours":25.37266636114358,"quality":"inauspicious"},{"name":"Chala","start":"01:22","end":"02:36","startHours":25.37266636114358,"endHours":26.60508071353302,"quality":"neutral"},{"name":"Labha","start":"02:36","end":"03:50","startHours":26.60508071353302,"endHours":27.83749506592246,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:04","startHours":27.83749506592246,"endHours":29.0699094183119,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.069909418311902,"endHours":6.069909418311902,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.069909418311902,"endHours":7.069909418311902,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.069909418311902,"endHours":8.069909418311902,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.069909418311902,"endHours":9.069909418311902,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.069909418311902,"endHours":10.069909418311902,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.069909418311902,"endHours":11.069909418311902,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.069909418311902,"endHours":12.069909418311902,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.069909418311902,"endHours":13.069909418311902,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.069909418311902,"endHours":14.069909418311902,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.069909418311902,"endHours":15.069909418311902,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.069909418311902,"endHours":16.0699094183119,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.0699094183119,"endHours":17.0699094183119,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.0699094183119,"endHours":18.0699094183119,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.0699094183119,"endHours":19.0699094183119,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.0699094183119,"endHours":20.0699094183119,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.0699094183119,"endHours":21.0699094183119,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.0699094183119,"endHours":22.0699094183119,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.0699094183119,"endHours":23.0699094183119,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.0699094183119,"endHours":24.0699094183119,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.0699094183119,"endHours":25.0699094183119,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.0699094183119,"endHours":26.0699094183119,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.0699094183119,"endHours":27.0699094183119,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.0699094183119,"endHours":28.0699094183119,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.0699094183119,"endHours":29.0699094183119,"planetary_lord":"Moon"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.475538056434022,"eotMinutes":8.142879474751563,"ayanamsa":23.88}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Ṣaṣṭhī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"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 December 6, 2001 CE · Perth, Australia · Vidhyamitra","description":"December 6, 2001 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:04, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2001-12-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2001-12-06","sa":"https://sa.vidhyamitra.com/city/perth/2001-12-06","hi":"https://hi.vidhyamitra.com/city/perth/2001-12-06","x-default":"https://vidhyamitra.com/city/perth/2001-12-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-16T18:53:47.112Z","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":"2026-05-16T18:53:47.112Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-16T18:53:47.112Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}