{"id":"vidhyamitra:city-day:perth:2027-12-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2027-12-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2027-12-29","date_display":"December 29, 2027 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":2027,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461768.770833,"kali_year":5129,"ahargana":1873303.2708,"sun":{"sidereal_longitude":252.4902,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":268.1065,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":15.6163,"elapsed_within_tithi_degrees":3.6163},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.1065,"elapsed_within_degrees":1.4399},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.5968},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2027,"month":12,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461768.770833,"ahargana":1873303.2708,"kali_year":5129,"ayanamsa_lahiri":24.244,"grahas":{"sun":{"sidereal_longitude":252.82368700000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":266.13268700000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false,"latitude":-1.1841},"mars":{"sidereal_longitude":270.96048700000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":262.2683870000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":152.75048700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":286.75168699999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":356.816487,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":283.3777,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":103.3777,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2027,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461768.770833,"kali_year":5129,"ahargana":1873303.2708,"sun":{"sidereal_longitude":252.4902,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":268.1065,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":15.6163,"elapsed_within_tithi_degrees":3.6163},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1,"moon_longitude":268.1065,"elapsed_within_degrees":1.4399},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.5968},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.184,"elongation":15.616},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.184,"opposition_distance":164.384}},"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":"05:12","sunsetLocal":"19:26","solarNoonLocal":"12:19","dayLengthHours":14.220363072804322,"dayLengthDisplay":"14 Hours 13 Mins 13 Secs","nightLengthDisplay":"9 Hours 46 Mins 47 Secs","moonriseLocal":"06:11","moonsetLocal":"20:13","rahuKala":{"name":"Rāhu Kāla","start":"12:19","end":"14:06","startHours":12.315079607409494,"endHours":14.092624991510032,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:59","end":"08:46","startHours":6.982443455107873,"endHours":8.759988839208413,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:32","end":"12:19","startHours":10.537534223308953,"endHours":12.315079607409494,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"09:00","startHours":8.522982787995009,"endHours":8.996994890421819,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:48","end":"06:11","startHours":5.797413199040846,"endHours":6.176622880982294,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:47","startHours":11.841067504982682,"endHours":12.789091709836303,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:15","startHours":3.3088496613000897,"endHours":4.256873866153711,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:01","end":"05:12","startHours":4.019867814940305,"endHours":5.2048980710073325,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.685140119543547,"endHours":15.63316432439717,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.225261143811654,"endHours":19.625261143811652,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.425261143811653,"endHours":20.017776271845168,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.175261143811653,"endHours":20.925261143811653,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:47","startHours":23.841067504982682,"endHours":24.789091709836306,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:12","end":"06:59","startHours":5.2048980710073325,"endHours":6.982443455107873,"quality":"auspicious"},{"name":"Amṛta","start":"06:59","end":"08:46","startHours":6.982443455107873,"endHours":8.759988839208413,"quality":"auspicious"},{"name":"Kāla","start":"08:46","end":"10:32","startHours":8.759988839208413,"endHours":10.537534223308953,"quality":"inauspicious"},{"name":"Śubha","start":"10:32","end":"12:19","startHours":10.537534223308953,"endHours":12.315079607409494,"quality":"auspicious"},{"name":"Roga","start":"12:19","end":"14:06","startHours":12.315079607409494,"endHours":14.092624991510032,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:52","startHours":14.092624991510032,"endHours":15.870170375610574,"quality":"inauspicious"},{"name":"Chala","start":"15:52","end":"17:39","startHours":15.870170375610574,"endHours":17.647715759711115,"quality":"neutral"},{"name":"Labha","start":"17:39","end":"19:26","startHours":17.647715759711115,"endHours":19.425261143811653,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:26","end":"20:39","startHours":19.425261143811653,"endHours":20.64771575971111,"quality":"inauspicious"},{"name":"Chala","start":"20:39","end":"21:52","startHours":20.64771575971111,"endHours":21.870170375610574,"quality":"neutral"},{"name":"Labha","start":"21:52","end":"23:06","startHours":21.870170375610574,"endHours":23.092624991510032,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:19","startHours":23.092624991510032,"endHours":24.315079607409494,"quality":"auspicious"},{"name":"Kāla","start":"00:19","end":"01:32","startHours":24.315079607409494,"endHours":25.537534223308953,"quality":"inauspicious"},{"name":"Śubha","start":"01:32","end":"02:46","startHours":25.537534223308953,"endHours":26.75998883920841,"quality":"auspicious"},{"name":"Roga","start":"02:46","end":"03:59","startHours":26.75998883920841,"endHours":27.98244345510787,"quality":"inauspicious"},{"name":"Udveg","start":"03:59","end":"05:12","startHours":27.98244345510787,"endHours":29.20489807100733,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.2048980710073325,"endHours":6.2048980710073325,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.2048980710073325,"endHours":7.2048980710073325,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.2048980710073325,"endHours":8.204898071007332,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.204898071007332,"endHours":9.204898071007332,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.204898071007332,"endHours":10.204898071007332,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.204898071007332,"endHours":11.204898071007332,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.204898071007332,"endHours":12.204898071007332,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.204898071007332,"endHours":13.204898071007332,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.204898071007332,"endHours":14.204898071007332,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.204898071007332,"endHours":15.204898071007332,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.204898071007332,"endHours":16.20489807100733,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.20489807100733,"endHours":17.20489807100733,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.20489807100733,"endHours":18.20489807100733,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.20489807100733,"endHours":19.20489807100733,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.20489807100733,"endHours":20.20489807100733,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.20489807100733,"endHours":21.20489807100733,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.20489807100733,"endHours":22.20489807100733,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.20489807100733,"endHours":23.20489807100733,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.20489807100733,"endHours":24.20489807100733,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.20489807100733,"endHours":25.20489807100733,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.20489807100733,"endHours":26.20489807100733,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.20489807100733,"endHours":27.20489807100733,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.20489807100733,"endHours":28.20489807100733,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.20489807100733,"endHours":29.20489807100733,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"South-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.247906571266732,"eotMinutes":-2.3467764445695645,"ayanamsa":24.244}},"calendars":{"vikram_samvat":2084,"vikram_samvatsara":"Raudra","saka_samvat":1949,"saka_samvatsara":"Plavaṅga","bengali_samvat":1434,"malayalam_era":1203,"nanakshahi_year":558,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Dvitīyā · Vikram 2084 Raudra · Śaka 1949 Plavaṅga"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 29, 2027 CE · Perth, Australia · Vidhyamitra","description":"December 29, 2027 CE for Perth, Australia: Śukla Dvitīyā, sūryodaya 05:12, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2027-12-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2027-12-29","sa":"https://sa.vidhyamitra.com/city/perth/2027-12-29","hi":"https://hi.vidhyamitra.com/city/perth/2027-12-29","x-default":"https://vidhyamitra.com/city/perth/2027-12-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T03:36:27.995Z","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":"2026-05-15T03:36:27.995Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T03:36:27.995Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}