{"id":"vidhyamitra:city-day:perth:2015-12-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2015-12-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-12-27","date_display":"December 27, 2015 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":2015,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457383.770833,"kali_year":5117,"ahargana":1868918.2708,"sun":{"sidereal_longitude":250.5424,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":91.9102,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":201.3678,"elapsed_within_tithi_degrees":9.3678},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":91.9102,"elapsed_within_degrees":11.9102},"yoga":{"number":26,"name":"Indra","sum_longitude":342.4526},"karana":{"half_tithi_index":33,"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":2015,"month":12,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457383.770833,"ahargana":1868918.2708,"kali_year":5117,"ayanamsa_lahiri":24.0763,"grahas":{"sun":{"sidereal_longitude":250.86452599999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":90.60632599999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":-4.0371},"mars":{"sidereal_longitude":181.48002599999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":270.232126,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":148.195626,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"venus":{"sidereal_longitude":211.75182600000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":226.295526,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":155.7161,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":335.7161,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"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":2015,"month":12,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457383.770833,"kali_year":5117,"ahargana":1868918.2708,"sun":{"sidereal_longitude":250.5424,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":91.9102,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":201.3678,"elapsed_within_tithi_degrees":9.3678},"nakshatra":{"number":7,"name":"Punarvasu","pada":4,"moon_longitude":91.9102,"elapsed_within_degrees":11.9102},"yoga":{"number":26,"name":"Indra","sum_longitude":342.4526},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.037,"elongation":158.632},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.037,"opposition_distance":21.368}},"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":"05:11","sunsetLocal":"19:25","solarNoonLocal":"12:18","dayLengthHours":14.230384411758545,"dayLengthDisplay":"14 Hours 13 Mins 49 Secs","nightLengthDisplay":"9 Hours 46 Mins 11 Secs","moonriseLocal":"20:30","moonsetLocal":"06:44","rahuKala":{"name":"Rāhu Kāla","start":"17:38","end":"19:25","startHours":17.636105922999967,"endHours":19.414903974469787,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:18","end":"14:05","startHours":12.299711768590516,"endHours":14.078509820060333,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:51","end":"17:38","startHours":15.857307871530152,"endHours":17.636105922999967,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:30","end":"08:59","startHours":8.50494259212157,"endHours":8.979288739180188,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:47","end":"06:09","startHours":5.777452246534516,"endHours":6.156929164181411,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:46","startHours":11.825365621531898,"endHours":12.774057915649134,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:17","end":"04:14","startHours":3.2871349744767704,"endHours":4.235827268594006,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:00","end":"05:11","startHours":3.9986541950646974,"endHours":5.184519562711243,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:40","end":"15:37","startHours":14.671442503883606,"endHours":15.620134798000842,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.214903974469788,"endHours":19.614903974469787,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.414903974469787,"endHours":20.00783665829306,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.164903974469787,"endHours":20.914903974469787,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:46","startHours":23.825365621531898,"endHours":24.774057915649134,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:11","end":"06:58","startHours":5.184519562711243,"endHours":6.963317614181061,"quality":"inauspicious"},{"name":"Chala","start":"06:58","end":"08:45","startHours":6.963317614181061,"endHours":8.742115665650878,"quality":"neutral"},{"name":"Labha","start":"08:45","end":"10:31","startHours":8.742115665650878,"endHours":10.520913717120697,"quality":"auspicious"},{"name":"Amṛta","start":"10:31","end":"12:18","startHours":10.520913717120697,"endHours":12.299711768590516,"quality":"auspicious"},{"name":"Kāla","start":"12:18","end":"14:05","startHours":12.299711768590516,"endHours":14.078509820060333,"quality":"inauspicious"},{"name":"Śubha","start":"14:05","end":"15:51","startHours":14.078509820060333,"endHours":15.857307871530152,"quality":"auspicious"},{"name":"Roga","start":"15:51","end":"17:38","startHours":15.857307871530152,"endHours":17.636105922999967,"quality":"inauspicious"},{"name":"Udveg","start":"17:38","end":"19:25","startHours":17.636105922999967,"endHours":19.414903974469787,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:25","end":"20:38","startHours":19.414903974469787,"endHours":20.63610592299997,"quality":"auspicious"},{"name":"Roga","start":"20:38","end":"21:51","startHours":20.63610592299997,"endHours":21.85730787153015,"quality":"inauspicious"},{"name":"Udveg","start":"21:51","end":"23:05","startHours":21.85730787153015,"endHours":23.078509820060333,"quality":"inauspicious"},{"name":"Chala","start":"23:05","end":"00:18","startHours":23.078509820060333,"endHours":24.299711768590516,"quality":"neutral"},{"name":"Labha","start":"00:18","end":"01:31","startHours":24.299711768590516,"endHours":25.5209137171207,"quality":"auspicious"},{"name":"Amṛta","start":"01:31","end":"02:45","startHours":25.5209137171207,"endHours":26.74211566565088,"quality":"auspicious"},{"name":"Kāla","start":"02:45","end":"03:58","startHours":26.74211566565088,"endHours":27.96331761418106,"quality":"inauspicious"},{"name":"Śubha","start":"03:58","end":"05:11","startHours":27.96331761418106,"endHours":29.184519562711245,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:11","end":"06:11","startHours":5.184519562711243,"endHours":6.184519562711243,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:11","end":"07:11","startHours":6.184519562711243,"endHours":7.184519562711243,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:11","end":"08:11","startHours":7.184519562711243,"endHours":8.184519562711243,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:11","end":"09:11","startHours":8.184519562711243,"endHours":9.184519562711243,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:11","end":"10:11","startHours":9.184519562711243,"endHours":10.184519562711243,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:11","end":"11:11","startHours":10.184519562711243,"endHours":11.184519562711243,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:11","end":"12:11","startHours":11.184519562711243,"endHours":12.184519562711243,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:11","end":"13:11","startHours":12.184519562711243,"endHours":13.184519562711243,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:11","end":"14:11","startHours":13.184519562711243,"endHours":14.184519562711243,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:11","end":"15:11","startHours":14.184519562711243,"endHours":15.184519562711243,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:11","end":"16:11","startHours":15.184519562711243,"endHours":16.184519562711245,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:11","end":"17:11","startHours":16.184519562711245,"endHours":17.184519562711245,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:11","end":"18:11","startHours":17.184519562711245,"endHours":18.184519562711245,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:11","end":"19:11","startHours":18.184519562711245,"endHours":19.184519562711245,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:11","end":"20:11","startHours":19.184519562711245,"endHours":20.184519562711245,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:11","end":"21:11","startHours":20.184519562711245,"endHours":21.184519562711245,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:11","end":"22:11","startHours":21.184519562711245,"endHours":22.184519562711245,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:11","end":"23:11","startHours":22.184519562711245,"endHours":23.184519562711245,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:11","end":"00:11","startHours":23.184519562711245,"endHours":24.184519562711245,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:11","end":"01:11","startHours":24.184519562711245,"endHours":25.184519562711245,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:11","end":"02:11","startHours":25.184519562711245,"endHours":26.184519562711245,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:11","end":"03:11","startHours":26.184519562711245,"endHours":27.184519562711245,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:11","end":"04:11","startHours":27.184519562711245,"endHours":28.184519562711245,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:11","end":"05:11","startHours":28.184519562711245,"endHours":29.184519562711245,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.344240675325718,"eotMinutes":-1.4247061154310068,"ayanamsa":24.0763}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Dvitīyā · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"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":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"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 27, 2015 CE · Perth, Australia · Vidhyamitra","description":"December 27, 2015 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:11, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2015-12-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2015-12-27","sa":"https://sa.vidhyamitra.com/city/perth/2015-12-27","hi":"https://hi.vidhyamitra.com/city/perth/2015-12-27","x-default":"https://vidhyamitra.com/city/perth/2015-12-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:07:50.830Z","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":"2026-05-31T22:07:50.830Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:07:50.830Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}