{"id":"vidhyamitra:city-day:perth:2181-12-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2181-12-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-12-29","date_display":"December 29, 2181 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":2181,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518016.770833,"kali_year":5283,"ahargana":1929551.2708,"sun":{"sidereal_longitude":250.5901,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":163.0094,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.4193,"elapsed_within_tithi_degrees":8.4193},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":163.0094,"elapsed_within_degrees":3.0094},"yoga":{"number":5,"name":"Śobhana","sum_longitude":53.5995},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2181,"month":12,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2518016.770833,"ahargana":1929551.2708,"kali_year":5283,"ayanamsa_lahiri":26.3953,"grahas":{"sun":{"sidereal_longitude":251.30269999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":159.91560000000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":-1.5435},"mars":{"sidereal_longitude":238.70759999999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":232.6214,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":144.51909999999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":207.89729999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":94.6531,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":183.088,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":3.088,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2181,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518016.770833,"kali_year":5283,"ahargana":1929551.2708,"sun":{"sidereal_longitude":250.5901,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":163.0094,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":272.4193,"elapsed_within_tithi_degrees":8.4193},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":163.0094,"elapsed_within_degrees":3.0094},"yoga":{"number":5,"name":"Śobhana","sum_longitude":53.5995},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.543,"elongation":87.581},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.543,"opposition_distance":92.419}},"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":"19:25","solarNoonLocal":"12:19","dayLengthHours":14.216720974591102,"dayLengthDisplay":"14 Hours 13 Mins 00 Secs","nightLengthDisplay":"9 Hours 47 Mins 00 Secs","moonriseLocal":"00:04","moonsetLocal":"12:22","rahuKala":{"name":"Rāhu Kāla","start":"08:46","end":"10:32","startHours":8.760899363761716,"endHours":10.537989485585605,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:06","end":"15:52","startHours":14.09216972923338,"endHours":15.869259851057269,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:12","end":"06:59","startHours":5.206719120113942,"endHours":6.983809241937829,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"09:00","startHours":8.523954014185199,"endHours":8.997844713338235,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:48","end":"06:11","startHours":5.799082494055238,"endHours":6.178195053377667,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:47","startHours":11.841188908256456,"endHours":12.788970306562529,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:16","startHours":3.3111563235017947,"endHours":4.258937721807868,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:01","end":"05:12","startHours":4.02199237223135,"endHours":5.206719120113942,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.684533103174676,"endHours":15.63231450148075,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.223440094705044,"endHours":19.623440094705042,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:01","startHours":19.423440094705043,"endHours":20.01580346864634,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.173440094705043,"endHours":20.923440094705043,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:47","startHours":23.841188908256456,"endHours":24.788970306562533,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:12","end":"06:59","startHours":5.206719120113942,"endHours":6.983809241937829,"quality":"inauspicious"},{"name":"Śubha","start":"06:59","end":"08:46","startHours":6.983809241937829,"endHours":8.760899363761716,"quality":"auspicious"},{"name":"Roga","start":"08:46","end":"10:32","startHours":8.760899363761716,"endHours":10.537989485585605,"quality":"inauspicious"},{"name":"Udveg","start":"10:32","end":"12:19","startHours":10.537989485585605,"endHours":12.315079607409492,"quality":"inauspicious"},{"name":"Chala","start":"12:19","end":"14:06","startHours":12.315079607409492,"endHours":14.09216972923338,"quality":"neutral"},{"name":"Labha","start":"14:06","end":"15:52","startHours":14.09216972923338,"endHours":15.869259851057269,"quality":"auspicious"},{"name":"Amṛta","start":"15:52","end":"17:39","startHours":15.869259851057269,"endHours":17.646349972881154,"quality":"auspicious"},{"name":"Kāla","start":"17:39","end":"19:25","startHours":17.646349972881154,"endHours":19.423440094705043,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:25","end":"20:39","startHours":19.423440094705043,"endHours":20.646349972881154,"quality":"auspicious"},{"name":"Amṛta","start":"20:39","end":"21:52","startHours":20.646349972881154,"endHours":21.86925985105727,"quality":"auspicious"},{"name":"Kāla","start":"21:52","end":"23:06","startHours":21.86925985105727,"endHours":23.09216972923338,"quality":"inauspicious"},{"name":"Śubha","start":"23:06","end":"00:19","startHours":23.09216972923338,"endHours":24.315079607409494,"quality":"auspicious"},{"name":"Roga","start":"00:19","end":"01:32","startHours":24.315079607409494,"endHours":25.537989485585605,"quality":"inauspicious"},{"name":"Udveg","start":"01:32","end":"02:46","startHours":25.537989485585605,"endHours":26.760899363761716,"quality":"inauspicious"},{"name":"Chala","start":"02:46","end":"03:59","startHours":26.760899363761716,"endHours":27.983809241937827,"quality":"neutral"},{"name":"Labha","start":"03:59","end":"05:12","startHours":27.983809241937827,"endHours":29.20671912011394,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.206719120113942,"endHours":6.206719120113942,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.206719120113942,"endHours":7.206719120113942,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.206719120113942,"endHours":8.206719120113942,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.206719120113942,"endHours":9.206719120113942,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.206719120113942,"endHours":10.206719120113942,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.206719120113942,"endHours":11.206719120113942,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.206719120113942,"endHours":12.206719120113942,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.206719120113942,"endHours":13.206719120113942,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.206719120113942,"endHours":14.206719120113942,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.206719120113942,"endHours":15.206719120113942,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.206719120113942,"endHours":16.20671912011394,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.20671912011394,"endHours":17.20671912011394,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.20671912011394,"endHours":18.20671912011394,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.20671912011394,"endHours":19.20671912011394,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.20671912011394,"endHours":20.20671912011394,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.20671912011394,"endHours":21.20671912011394,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.20671912011394,"endHours":22.20671912011394,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.20671912011394,"endHours":23.20671912011394,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.20671912011394,"endHours":24.20671912011394,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.20671912011394,"endHours":25.20671912011394,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.20671912011394,"endHours":26.20671912011394,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.20671912011394,"endHours":27.20671912011394,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.20671912011394,"endHours":28.20671912011394,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.20671912011394,"endHours":29.20671912011394,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"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":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"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":-23.21285052166451,"eotMinutes":-2.3467764445695645,"ayanamsa":26.3953}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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 Aṣṭamī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","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 29, 2181 CE · Perth, Australia · Vidhyamitra","description":"December 29, 2181 CE for Perth, Australia: Kṛṣṇa Aṣṭamī, sūryodaya 05:12, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2181-12-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2181-12-29","sa":"https://sa.vidhyamitra.com/city/perth/2181-12-29","hi":"https://hi.vidhyamitra.com/city/perth/2181-12-29","x-default":"https://vidhyamitra.com/city/perth/2181-12-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T22:42:22.997Z","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":"2026-05-30T22:42:22.997Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T22:42:22.997Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}