{"id":"vidhyamitra:city-day:perth:2018-12-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2018-12-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-12-07","date_display":"December 7, 2018 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":2018,"month":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458459.770833,"kali_year":5120,"ahargana":1869994.2708,"sun":{"sidereal_longitude":230.2507,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":228.661,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.4103,"elapsed_within_tithi_degrees":10.4103},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":228.661,"elapsed_within_degrees":1.9944},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.9117},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":2018,"month":12,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458459.770833,"ahargana":1869994.2708,"kali_year":5120,"ayanamsa_lahiri":24.1175,"grahas":{"sun":{"sidereal_longitude":230.75151500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":227.66821500000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false,"latitude":3.4479},"mars":{"sidereal_longitude":318.976415,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":212.80811500000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":222.17761500000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":188.16501500000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":254.26451499999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":98.7045,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":278.7045,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2018,"month":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458459.770833,"kali_year":5120,"ahargana":1869994.2708,"sun":{"sidereal_longitude":230.2507,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":228.661,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.4103,"elapsed_within_tithi_degrees":10.4103},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1,"moon_longitude":228.661,"elapsed_within_degrees":1.9944},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.9117},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.448,"elongation":1.59},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.448,"opposition_distance":178.41}},"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":"12:09","dayLengthHours":14.151206499375926,"dayLengthDisplay":"14 Hours 09 Mins 04 Secs","nightLengthDisplay":"9 Hours 50 Mins 56 Secs","moonriseLocal":"04:54","moonsetLocal":"18:59","rahuKala":{"name":"Rāhu Kāla","start":"10:23","end":"12:09","startHours":10.378337578855723,"endHours":12.147238391277714,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:41","end":"17:27","startHours":15.685040016121695,"endHours":17.453940828543686,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:50","end":"08:37","startHours":6.840535954011741,"endHours":8.609436766433731,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:51","startHours":8.373583324777467,"endHours":8.845290208089997,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:02","startHours":5.661268745730414,"endHours":6.038634252380438,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:37","startHours":11.675531507965182,"endHours":12.618945274590242,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.184807608339627,"endHours":4.1282213749646886,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:04","startHours":3.892367933308423,"endHours":5.07163514158975,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:27","startHours":14.505772807840367,"endHours":15.449186574465429,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.022841640965677,"endHours":19.422841640965675,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:49","startHours":19.222841640965676,"endHours":19.812475245106338,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.972841640965676,"endHours":20.722841640965676,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:37","startHours":23.67553150796518,"endHours":24.618945274590242,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:04","end":"06:50","startHours":5.07163514158975,"endHours":6.840535954011741,"quality":"neutral"},{"name":"Labha","start":"06:50","end":"08:37","startHours":6.840535954011741,"endHours":8.609436766433731,"quality":"auspicious"},{"name":"Amṛta","start":"08:37","end":"10:23","startHours":8.609436766433731,"endHours":10.378337578855723,"quality":"auspicious"},{"name":"Kāla","start":"10:23","end":"12:09","startHours":10.378337578855723,"endHours":12.147238391277714,"quality":"inauspicious"},{"name":"Śubha","start":"12:09","end":"13:55","startHours":12.147238391277714,"endHours":13.916139203699704,"quality":"auspicious"},{"name":"Roga","start":"13:55","end":"15:41","startHours":13.916139203699704,"endHours":15.685040016121695,"quality":"inauspicious"},{"name":"Udveg","start":"15:41","end":"17:27","startHours":15.685040016121695,"endHours":17.453940828543686,"quality":"inauspicious"},{"name":"Chala","start":"17:27","end":"19:13","startHours":17.453940828543686,"endHours":19.222841640965676,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:13","end":"20:27","startHours":19.222841640965676,"endHours":20.453940828543686,"quality":"inauspicious"},{"name":"Udveg","start":"20:27","end":"21:41","startHours":20.453940828543686,"endHours":21.685040016121693,"quality":"inauspicious"},{"name":"Chala","start":"21:41","end":"22:55","startHours":21.685040016121693,"endHours":22.916139203699704,"quality":"neutral"},{"name":"Labha","start":"22:55","end":"00:09","startHours":22.916139203699704,"endHours":24.147238391277714,"quality":"auspicious"},{"name":"Amṛta","start":"00:09","end":"01:23","startHours":24.147238391277714,"endHours":25.37833757885572,"quality":"auspicious"},{"name":"Kāla","start":"01:23","end":"02:37","startHours":25.37833757885572,"endHours":26.60943676643373,"quality":"inauspicious"},{"name":"Śubha","start":"02:37","end":"03:50","startHours":26.60943676643373,"endHours":27.84053595401174,"quality":"auspicious"},{"name":"Roga","start":"03:50","end":"05:04","startHours":27.84053595401174,"endHours":29.071635141589752,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.07163514158975,"endHours":6.07163514158975,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.07163514158975,"endHours":7.07163514158975,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.07163514158975,"endHours":8.07163514158975,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.07163514158975,"endHours":9.07163514158975,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.07163514158975,"endHours":10.07163514158975,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.07163514158975,"endHours":11.07163514158975,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.07163514158975,"endHours":12.07163514158975,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.07163514158975,"endHours":13.07163514158975,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.07163514158975,"endHours":14.07163514158975,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.07163514158975,"endHours":15.07163514158975,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.07163514158975,"endHours":16.071635141589752,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.071635141589752,"endHours":17.071635141589752,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.071635141589752,"endHours":18.071635141589752,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.071635141589752,"endHours":19.071635141589752,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.071635141589752,"endHours":20.071635141589752,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.071635141589752,"endHours":21.071635141589752,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.071635141589752,"endHours":22.071635141589752,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.071635141589752,"endHours":23.071635141589752,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.071635141589752,"endHours":24.071635141589752,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.071635141589752,"endHours":25.071635141589752,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.071635141589752,"endHours":26.071635141589752,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.071635141589752,"endHours":27.071635141589752,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.071635141589752,"endHours":28.071635141589752,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.071635141589752,"endHours":29.071635141589752,"planetary_lord":"Mars"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Mudgara","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":-22.57818060625809,"eotMinutes":7.723696523337262,"ayanamsa":24.1175}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Kṛṣṇa Amāvasyā · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"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":"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā + Jyeṣṭhā","url":"/day/-3137-10-20","relevance":1}]},"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 7, 2018 CE · Perth, Australia · Vidhyamitra","description":"December 7, 2018 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:04, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2018-12-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2018-12-07","sa":"https://sa.vidhyamitra.com/city/perth/2018-12-07","hi":"https://hi.vidhyamitra.com/city/perth/2018-12-07","x-default":"https://vidhyamitra.com/city/perth/2018-12-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:49:47.281Z","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":"2026-05-15T03:49:47.281Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:49:47.281Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}