{"id":"vidhyamitra:city-day:perth:2026-01-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2026-01-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-01-07","date_display":"January 7, 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":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461047.770833,"kali_year":5127,"ahargana":1872582.2708,"sun":{"sidereal_longitude":262.275,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":129.2568,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.9819,"elapsed_within_tithi_degrees":10.9819},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.2568,"elapsed_within_degrees":9.2568},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":31.5318},"karana":{"half_tithi_index":37,"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":2026,"month":1,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461047.770833,"ahargana":1872582.2708,"kali_year":5127,"ayanamsa_lahiri":24.2164,"grahas":{"sun":{"sidereal_longitude":262.518735,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":130.332835,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":0.9595},"mars":{"sidereal_longitude":262.73233500000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":253.420935,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":86.19273499999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":true},"venus":{"sidereal_longitude":262.26043500000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":332.417635,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":321.5798,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":141.5798,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2026,"month":1,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461047.770833,"kali_year":5127,"ahargana":1872582.2708,"sun":{"sidereal_longitude":262.275,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":129.2568,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.9819,"elapsed_within_tithi_degrees":10.9819},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.2568,"elapsed_within_degrees":9.2568},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":31.5318},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.959,"elongation":133.018},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.959,"opposition_distance":46.982}},"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":"05:19","sunsetLocal":"19:27","solarNoonLocal":"12:23","dayLengthHours":14.131792792703756,"dayLengthDisplay":"14 Hours 07 Mins 54 Secs","nightLengthDisplay":"9 Hours 52 Mins 06 Secs","moonriseLocal":"21:56","moonsetLocal":"09:12","rahuKala":{"name":"Rāhu Kāla","start":"12:23","end":"14:09","startHours":12.380834571790327,"endHours":14.147308670878296,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:05","end":"08:51","startHours":7.081412274526418,"endHours":8.847886373614386,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:37","end":"12:23","startHours":10.614360472702357,"endHours":12.380834571790327,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:37","end":"09:05","startHours":8.61235649373599,"endHours":9.083416253492784,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:17","startHours":5.903762875134438,"endHours":6.280610682939872,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:51","startHours":11.909774812033536,"endHours":12.851894331547118,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:26","end":"04:22","startHours":3.430699136411281,"endHours":4.372818655924864,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:19","startHours":4.137288776046469,"endHours":5.314938175438448,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:41","startHours":14.736133370574287,"endHours":15.67825289008787,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.246730968142206,"endHours":19.646730968142204,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.446730968142205,"endHours":20.035555667838196,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.196730968142205,"endHours":20.946730968142205,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:51","startHours":23.909774812033536,"endHours":24.85189433154712,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:19","end":"07:05","startHours":5.314938175438448,"endHours":7.081412274526418,"quality":"auspicious"},{"name":"Amṛta","start":"07:05","end":"08:51","startHours":7.081412274526418,"endHours":8.847886373614386,"quality":"auspicious"},{"name":"Kāla","start":"08:51","end":"10:37","startHours":8.847886373614386,"endHours":10.614360472702357,"quality":"inauspicious"},{"name":"Śubha","start":"10:37","end":"12:23","startHours":10.614360472702357,"endHours":12.380834571790327,"quality":"auspicious"},{"name":"Roga","start":"12:23","end":"14:09","startHours":12.380834571790327,"endHours":14.147308670878296,"quality":"inauspicious"},{"name":"Udveg","start":"14:09","end":"15:55","startHours":14.147308670878296,"endHours":15.913782769966264,"quality":"inauspicious"},{"name":"Chala","start":"15:55","end":"17:41","startHours":15.913782769966264,"endHours":17.680256869054237,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:27","startHours":17.680256869054237,"endHours":19.446730968142205,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:27","end":"20:41","startHours":19.446730968142205,"endHours":20.680256869054237,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:55","startHours":20.680256869054237,"endHours":21.913782769966268,"quality":"neutral"},{"name":"Labha","start":"21:55","end":"23:09","startHours":21.913782769966268,"endHours":23.147308670878296,"quality":"auspicious"},{"name":"Amṛta","start":"23:09","end":"00:23","startHours":23.147308670878296,"endHours":24.380834571790327,"quality":"auspicious"},{"name":"Kāla","start":"00:23","end":"01:37","startHours":24.380834571790327,"endHours":25.61436047270236,"quality":"inauspicious"},{"name":"Śubha","start":"01:37","end":"02:51","startHours":25.61436047270236,"endHours":26.847886373614386,"quality":"auspicious"},{"name":"Roga","start":"02:51","end":"04:05","startHours":26.847886373614386,"endHours":28.081412274526418,"quality":"inauspicious"},{"name":"Udveg","start":"04:05","end":"05:19","startHours":28.081412274526418,"endHours":29.31493817543845,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:19","end":"06:19","startHours":5.314938175438448,"endHours":6.314938175438448,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:19","end":"07:19","startHours":6.314938175438448,"endHours":7.314938175438448,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:19","end":"08:19","startHours":7.314938175438448,"endHours":8.31493817543845,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:19","end":"09:19","startHours":8.31493817543845,"endHours":9.31493817543845,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:19","end":"10:19","startHours":9.31493817543845,"endHours":10.31493817543845,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:19","end":"11:19","startHours":10.31493817543845,"endHours":11.31493817543845,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:19","end":"12:19","startHours":11.31493817543845,"endHours":12.31493817543845,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:19","end":"13:19","startHours":12.31493817543845,"endHours":13.31493817543845,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:19","end":"14:19","startHours":13.31493817543845,"endHours":14.31493817543845,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:19","end":"15:19","startHours":14.31493817543845,"endHours":15.31493817543845,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:19","end":"16:19","startHours":15.31493817543845,"endHours":16.31493817543845,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:19","end":"17:19","startHours":16.31493817543845,"endHours":17.31493817543845,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:19","end":"18:19","startHours":17.31493817543845,"endHours":18.31493817543845,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:19","end":"19:19","startHours":18.31493817543845,"endHours":19.31493817543845,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:19","end":"20:19","startHours":19.31493817543845,"endHours":20.31493817543845,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:19","end":"21:19","startHours":20.31493817543845,"endHours":21.31493817543845,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:19","end":"22:19","startHours":21.31493817543845,"endHours":22.31493817543845,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:19","end":"23:19","startHours":22.31493817543845,"endHours":23.31493817543845,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:19","end":"00:19","startHours":23.31493817543845,"endHours":24.31493817543845,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:19","end":"01:19","startHours":24.31493817543845,"endHours":25.31493817543845,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:19","end":"02:19","startHours":25.31493817543845,"endHours":26.31493817543845,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:19","end":"03:19","startHours":26.31493817543845,"endHours":27.31493817543845,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:19","end":"04:19","startHours":27.31493817543845,"endHours":28.31493817543845,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:19","end":"05:19","startHours":28.31493817543845,"endHours":29.31493817543845,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"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":-22.388632580411606,"eotMinutes":-6.292074307419696,"ayanamsa":24.2164}},"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 Caturthī · 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},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 January 7, 2026 CE · Perth, Australia · Vidhyamitra","description":"January 7, 2026 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 05:19, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2026-01-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2026-01-07","sa":"https://sa.vidhyamitra.com/city/perth/2026-01-07","hi":"https://hi.vidhyamitra.com/city/perth/2026-01-07","x-default":"https://vidhyamitra.com/city/perth/2026-01-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T20:24:48.592Z","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":"2026-05-14T20:24:48.592Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T20:24:48.592Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}