{"id":"vidhyamitra:city-day:perth:2026-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2026-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-12-30","date_display":"December 30, 2026 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":2026,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461404.770833,"kali_year":5128,"ahargana":1872939.2708,"sun":{"sidereal_longitude":253.7843,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":151.3626,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.5783,"elapsed_within_tithi_degrees":5.5783},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":151.3626,"elapsed_within_degrees":4.6959},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.1468},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2026,"month":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461404.770833,"ahargana":1872939.2708,"kali_year":5128,"ayanamsa_lahiri":24.2301,"grahas":{"sun":{"sidereal_longitude":254.10359500000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":154.98859500000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":-2.1592},"mars":{"sidereal_longitude":134.99699499999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":252.194795,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":122.10179499999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":206.89219500000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":344.089595,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":302.6642,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":122.6642,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2026,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461404.770833,"kali_year":5128,"ahargana":1872939.2708,"sun":{"sidereal_longitude":253.7843,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":151.3626,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":257.5783,"elapsed_within_tithi_degrees":5.5783},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":151.3626,"elapsed_within_degrees":4.6959},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":45.1468},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.159,"elongation":102.422},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.159,"opposition_distance":77.578}},"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":"05:13","sunsetLocal":"19:26","solarNoonLocal":"12:19","dayLengthHours":14.212738755587377,"dayLengthDisplay":"14 Hours 12 Mins 46 Secs","nightLengthDisplay":"9 Hours 47 Mins 14 Secs","moonriseLocal":"23:41","moonsetLocal":"11:45","rahuKala":{"name":"Rāhu Kāla","start":"12:19","end":"14:06","startHours":12.322688241671203,"endHours":14.099280586119626,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:00","end":"08:46","startHours":6.992911208325937,"endHours":8.76950355277436,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:33","end":"12:19","startHours":10.54609589722278,"endHours":12.322688241671203,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:32","end":"09:00","startHours":8.53262457351457,"endHours":9.006382532034149,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:11","startHours":5.808516312026988,"endHours":6.187522678842652,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:48","startHours":11.848930283151624,"endHours":12.796446200190783,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:16","startHours":3.3212870297991977,"endHours":4.268802946838356,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:02","end":"05:13","startHours":4.0319239675785665,"endHours":5.216318863877515,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.6914780342691,"endHours":15.638993951308258,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.229057619464893,"endHours":19.62905761946489,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.429057619464892,"endHours":20.021255067614366,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.179057619464892,"endHours":20.929057619464892,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:48","startHours":23.848930283151624,"endHours":24.79644620019078,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:13","end":"07:00","startHours":5.216318863877515,"endHours":6.992911208325937,"quality":"auspicious"},{"name":"Amṛta","start":"07:00","end":"08:46","startHours":6.992911208325937,"endHours":8.76950355277436,"quality":"auspicious"},{"name":"Kāla","start":"08:46","end":"10:33","startHours":8.76950355277436,"endHours":10.54609589722278,"quality":"inauspicious"},{"name":"Śubha","start":"10:33","end":"12:19","startHours":10.54609589722278,"endHours":12.322688241671203,"quality":"auspicious"},{"name":"Roga","start":"12:19","end":"14:06","startHours":12.322688241671203,"endHours":14.099280586119626,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:53","startHours":14.099280586119626,"endHours":15.875872930568047,"quality":"inauspicious"},{"name":"Chala","start":"15:53","end":"17:39","startHours":15.875872930568047,"endHours":17.652465275016468,"quality":"neutral"},{"name":"Labha","start":"17:39","end":"19:26","startHours":17.652465275016468,"endHours":19.429057619464892,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:26","end":"20:39","startHours":19.429057619464892,"endHours":20.65246527501647,"quality":"inauspicious"},{"name":"Chala","start":"20:39","end":"21:53","startHours":20.65246527501647,"endHours":21.875872930568047,"quality":"neutral"},{"name":"Labha","start":"21:53","end":"23:06","startHours":21.875872930568047,"endHours":23.099280586119626,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:19","startHours":23.099280586119626,"endHours":24.3226882416712,"quality":"auspicious"},{"name":"Kāla","start":"00:19","end":"01:33","startHours":24.3226882416712,"endHours":25.54609589722278,"quality":"inauspicious"},{"name":"Śubha","start":"01:33","end":"02:46","startHours":25.54609589722278,"endHours":26.76950355277436,"quality":"auspicious"},{"name":"Roga","start":"02:46","end":"04:00","startHours":26.76950355277436,"endHours":27.992911208325935,"quality":"inauspicious"},{"name":"Udveg","start":"04:00","end":"05:13","startHours":27.992911208325935,"endHours":29.216318863877515,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:13","end":"06:13","startHours":5.216318863877515,"endHours":6.216318863877515,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:13","end":"07:13","startHours":6.216318863877515,"endHours":7.216318863877515,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:13","end":"08:13","startHours":7.216318863877515,"endHours":8.216318863877515,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:13","end":"09:13","startHours":8.216318863877515,"endHours":9.216318863877515,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:13","end":"10:13","startHours":9.216318863877515,"endHours":10.216318863877515,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:13","end":"11:13","startHours":10.216318863877515,"endHours":11.216318863877515,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:13","end":"12:13","startHours":11.216318863877515,"endHours":12.216318863877515,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:13","end":"13:13","startHours":12.216318863877515,"endHours":13.216318863877515,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:13","end":"14:13","startHours":13.216318863877515,"endHours":14.216318863877515,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:13","end":"15:13","startHours":14.216318863877515,"endHours":15.216318863877515,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:13","end":"16:13","startHours":15.216318863877515,"endHours":16.216318863877515,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:13","end":"17:13","startHours":16.216318863877515,"endHours":17.216318863877515,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:13","end":"18:13","startHours":17.216318863877515,"endHours":18.216318863877515,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:13","end":"19:13","startHours":18.216318863877515,"endHours":19.216318863877515,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:13","end":"20:13","startHours":19.216318863877515,"endHours":20.216318863877515,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:13","end":"21:13","startHours":20.216318863877515,"endHours":21.216318863877515,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:13","end":"22:13","startHours":21.216318863877515,"endHours":22.216318863877515,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:13","end":"23:13","startHours":22.216318863877515,"endHours":23.216318863877515,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:13","end":"00:13","startHours":23.216318863877515,"endHours":24.216318863877515,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:13","end":"01:13","startHours":24.216318863877515,"endHours":25.216318863877515,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:13","end":"02:13","startHours":25.216318863877515,"endHours":26.216318863877515,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:13","end":"03:13","startHours":26.216318863877515,"endHours":27.216318863877515,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:13","end":"04:13","startHours":27.216318863877515,"endHours":28.216318863877515,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:13","end":"05:13","startHours":28.216318863877515,"endHours":29.216318863877515,"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"South-West","anandadiYoga":{"name":"Mātaṇga","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":-23.17449333429837,"eotMinutes":-2.803294500272213,"ayanamsa":24.2301}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Saptamī · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"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 30, 2026 CE · Perth, Australia · Vidhyamitra","description":"December 30, 2026 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 05:13, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2026-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2026-12-30","sa":"https://sa.vidhyamitra.com/city/perth/2026-12-30","hi":"https://hi.vidhyamitra.com/city/perth/2026-12-30","x-default":"https://vidhyamitra.com/city/perth/2026-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T20:12:00.707Z","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":"2026-05-14T20:12:00.707Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T20:12:00.707Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}