{"id":"vidhyamitra:city-day:perth:2102-01-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2102-01-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-01-06","date_display":"January 6, 2102 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":2102,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488804.770833,"kali_year":5203,"ahargana":1900339.2708,"sun":{"sidereal_longitude":259.5348,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":98.232,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":198.6972,"elapsed_within_tithi_degrees":6.6972},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":98.232,"elapsed_within_degrees":4.8986},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.7667},"karana":{"half_tithi_index":33,"name":"Gara"},"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":2102,"month":1,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488804.770833,"ahargana":1900339.2708,"kali_year":5203,"ayanamsa_lahiri":25.278,"grahas":{"sun":{"sidereal_longitude":259.980313,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":96.760313,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":0.9844},"mars":{"sidereal_longitude":45.360613,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":261.26631299999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":226.83721300000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":229.49431300000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":201.68851300000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":290.8804,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":110.8804,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"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":2102,"month":1,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488804.770833,"kali_year":5203,"ahargana":1900339.2708,"sun":{"sidereal_longitude":259.5348,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":98.232,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":198.6972,"elapsed_within_tithi_degrees":6.6972},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":98.232,"elapsed_within_degrees":4.8986},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.7667},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.984,"elongation":161.303},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.984,"opposition_distance":18.697}},"eclipse_window_40days":[{"offset_days":13,"type":"solar","occurs":true,"moon_latitude":-1.366,"elongation":0.393}]},"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":"05:18","sunsetLocal":"19:27","solarNoonLocal":"12:22","dayLengthHours":14.149731841525494,"dayLengthDisplay":"14 Hours 08 Mins 59 Secs","nightLengthDisplay":"9 Hours 51 Mins 01 Secs","moonriseLocal":"20:18","moonsetLocal":"06:41","rahuKala":{"name":"Rāhu Kāla","start":"10:36","end":"12:22","startHours":10.605177204925543,"endHours":12.37389368511623,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:55","end":"17:41","startHours":15.911326645497603,"endHours":17.68004312568829,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:04","end":"08:50","startHours":7.067744244544168,"endHours":8.836460724734856,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:36","end":"09:04","startHours":8.60063186070943,"endHours":9.07228958876028,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:53","end":"06:16","startHours":5.8885999244170435,"endHours":6.265926106857723,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:51","startHours":11.902235957065379,"endHours":12.84555141316708,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:25","end":"04:21","startHours":3.4123968521500823,"endHours":4.355712308251782,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:07","end":"05:18","startHours":4.119883444226357,"endHours":5.2990277643534816,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:41","startHours":14.732182325370477,"endHours":15.675497781472176,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:15","end":"19:39","startHours":19.248759605878977,"endHours":19.648759605878976,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:27","end":"20:02","startHours":19.448759605878976,"endHours":20.038331765942537,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:12","end":"20:57","startHours":19.198759605878976,"endHours":20.948759605878976,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:51","startHours":23.90223595706538,"endHours":24.84555141316708,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:18","end":"07:04","startHours":5.2990277643534816,"endHours":7.067744244544168,"quality":"neutral"},{"name":"Labha","start":"07:04","end":"08:50","startHours":7.067744244544168,"endHours":8.836460724734856,"quality":"auspicious"},{"name":"Amṛta","start":"08:50","end":"10:36","startHours":8.836460724734856,"endHours":10.605177204925543,"quality":"auspicious"},{"name":"Kāla","start":"10:36","end":"12:22","startHours":10.605177204925543,"endHours":12.37389368511623,"quality":"inauspicious"},{"name":"Śubha","start":"12:22","end":"14:09","startHours":12.37389368511623,"endHours":14.142610165306916,"quality":"auspicious"},{"name":"Roga","start":"14:09","end":"15:55","startHours":14.142610165306916,"endHours":15.911326645497603,"quality":"inauspicious"},{"name":"Udveg","start":"15:55","end":"17:41","startHours":15.911326645497603,"endHours":17.68004312568829,"quality":"inauspicious"},{"name":"Chala","start":"17:41","end":"19:27","startHours":17.68004312568829,"endHours":19.448759605878976,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:27","end":"20:41","startHours":19.448759605878976,"endHours":20.68004312568829,"quality":"inauspicious"},{"name":"Udveg","start":"20:41","end":"21:55","startHours":20.68004312568829,"endHours":21.911326645497603,"quality":"inauspicious"},{"name":"Chala","start":"21:55","end":"23:09","startHours":21.911326645497603,"endHours":23.142610165306916,"quality":"neutral"},{"name":"Labha","start":"23:09","end":"00:22","startHours":23.142610165306916,"endHours":24.37389368511623,"quality":"auspicious"},{"name":"Amṛta","start":"00:22","end":"01:36","startHours":24.37389368511623,"endHours":25.605177204925543,"quality":"auspicious"},{"name":"Kāla","start":"01:36","end":"02:50","startHours":25.605177204925543,"endHours":26.836460724734856,"quality":"inauspicious"},{"name":"Śubha","start":"02:50","end":"04:04","startHours":26.836460724734856,"endHours":28.06774424454417,"quality":"auspicious"},{"name":"Roga","start":"04:04","end":"05:18","startHours":28.06774424454417,"endHours":29.299027764353482,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:18","end":"06:18","startHours":5.2990277643534816,"endHours":6.2990277643534816,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:18","end":"07:18","startHours":6.2990277643534816,"endHours":7.2990277643534816,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:18","end":"08:18","startHours":7.2990277643534816,"endHours":8.299027764353482,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:18","end":"09:18","startHours":8.299027764353482,"endHours":9.299027764353482,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:18","end":"10:18","startHours":9.299027764353482,"endHours":10.299027764353482,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:18","end":"11:18","startHours":10.299027764353482,"endHours":11.299027764353482,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:18","end":"12:18","startHours":11.299027764353482,"endHours":12.299027764353482,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:18","end":"13:18","startHours":12.299027764353482,"endHours":13.299027764353482,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:18","end":"14:18","startHours":13.299027764353482,"endHours":14.299027764353482,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:18","end":"15:18","startHours":14.299027764353482,"endHours":15.299027764353482,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:18","end":"16:18","startHours":15.299027764353482,"endHours":16.299027764353482,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:18","end":"17:18","startHours":16.299027764353482,"endHours":17.299027764353482,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:18","end":"18:18","startHours":17.299027764353482,"endHours":18.299027764353482,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:18","end":"19:18","startHours":18.299027764353482,"endHours":19.299027764353482,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:18","end":"20:18","startHours":19.299027764353482,"endHours":20.299027764353482,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:18","end":"21:18","startHours":20.299027764353482,"endHours":21.299027764353482,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:18","end":"22:18","startHours":21.299027764353482,"endHours":22.299027764353482,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:18","end":"23:18","startHours":22.299027764353482,"endHours":23.299027764353482,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:18","end":"00:18","startHours":23.299027764353482,"endHours":24.299027764353482,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:18","end":"01:18","startHours":24.299027764353482,"endHours":25.299027764353482,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:18","end":"02:18","startHours":25.299027764353482,"endHours":26.299027764353482,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:18","end":"03:18","startHours":26.299027764353482,"endHours":27.299027764353482,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:18","end":"04:18","startHours":27.299027764353482,"endHours":28.299027764353482,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:18","end":"05:18","startHours":28.299027764353482,"endHours":29.299027764353482,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara 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":"South-East","anandadiYoga":{"name":"Dhātṛ","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":-22.56380625481114,"eotMinutes":-5.875621106973772,"ayanamsa":25.278}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Dvitīyā · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"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":"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":[]},"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 6, 2102 CE · Perth, Australia · Vidhyamitra","description":"January 6, 2102 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:18, sūryāsta 19:27.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2102-01-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2102-01-06","sa":"https://sa.vidhyamitra.com/city/perth/2102-01-06","hi":"https://hi.vidhyamitra.com/city/perth/2102-01-06","x-default":"https://vidhyamitra.com/city/perth/2102-01-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-21T02:46:34.206Z","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":"2026-05-21T02:46:34.206Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-21T02:46:34.206Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}