{"id":"vidhyamitra:city-day:perth:2160-12-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2160-12-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2160-12-11","date_display":"December 11, 2160 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":2160,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510328.770833,"kali_year":5262,"ahargana":1921863.2708,"sun":{"sidereal_longitude":232.561,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":20.7009,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.1399,"elapsed_within_tithi_degrees":4.1399},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":20.7009,"elapsed_within_degrees":7.3676},"yoga":{"number":19,"name":"Parigha","sum_longitude":253.2619},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2160,"month":12,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2510328.770833,"ahargana":1921863.2708,"kali_year":5262,"ayanamsa_lahiri":26.1013,"grahas":{"sun":{"sidereal_longitude":233.3806380000001,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":21.835537999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false,"latitude":2.2302},"mars":{"sidereal_longitude":190.34003800000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":247.028238,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":212.77763800000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":278.029138,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":199.80913800000008,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":230.4353,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":50.4353,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","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":2160,"month":12,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2510328.770833,"kali_year":5262,"ahargana":1921863.2708,"sun":{"sidereal_longitude":232.561,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":20.7009,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.1399,"elapsed_within_tithi_degrees":4.1399},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3,"moon_longitude":20.7009,"elapsed_within_degrees":7.3676},"yoga":{"number":19,"name":"Parigha","sum_longitude":253.2619},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.23,"elongation":148.14},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.23,"opposition_distance":31.86}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":-0.694,"elongation":2.964}]},"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":"05:05","sunsetLocal":"19:16","solarNoonLocal":"12:11","dayLengthHours":14.1967106566983,"dayLengthDisplay":"14 Hours 11 Mins 48 Secs","nightLengthDisplay":"9 Hours 48 Mins 12 Secs","moonriseLocal":"16:46","moonsetLocal":"03:23","rahuKala":{"name":"Rāhu Kāla","start":"13:57","end":"15:44","startHours":13.950754120678408,"endHours":15.725342952765693,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:05","end":"06:51","startHours":5.077809960241969,"endHours":6.852398792329256,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:38","end":"10:24","startHours":8.626987624416543,"endHours":10.401576456503832,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:23","end":"08:52","startHours":8.390375780138239,"endHours":8.863599468694849,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:03","startHours":5.669339570937732,"endHours":6.04791852178302,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:42","end":"12:39","startHours":11.702941600034508,"endHours":12.649388977147728,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.184915206015529,"endHours":4.131362583128749,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:05","startHours":3.894750738850444,"endHours":5.077809960241969,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:33","end":"15:29","startHours":14.54228373137417,"endHours":15.48873110848739,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:04","end":"19:28","startHours":19.07452061694027,"endHours":19.474520616940268,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:16","end":"19:52","startHours":19.27452061694027,"endHours":19.86605022763603,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:01","end":"20:46","startHours":19.02452061694027,"endHours":20.77452061694027,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:42","end":"00:39","startHours":23.702941600034507,"endHours":24.64938897714773,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:05","end":"06:51","startHours":5.077809960241969,"endHours":6.852398792329256,"quality":"auspicious"},{"name":"Roga","start":"06:51","end":"08:38","startHours":6.852398792329256,"endHours":8.626987624416543,"quality":"inauspicious"},{"name":"Udveg","start":"08:38","end":"10:24","startHours":8.626987624416543,"endHours":10.401576456503832,"quality":"inauspicious"},{"name":"Chala","start":"10:24","end":"12:11","startHours":10.401576456503832,"endHours":12.176165288591118,"quality":"neutral"},{"name":"Labha","start":"12:11","end":"13:57","startHours":12.176165288591118,"endHours":13.950754120678408,"quality":"auspicious"},{"name":"Amṛta","start":"13:57","end":"15:44","startHours":13.950754120678408,"endHours":15.725342952765693,"quality":"auspicious"},{"name":"Kāla","start":"15:44","end":"17:30","startHours":15.725342952765693,"endHours":17.499931784852983,"quality":"inauspicious"},{"name":"Śubha","start":"17:30","end":"19:16","startHours":17.499931784852983,"endHours":19.27452061694027,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:16","end":"20:30","startHours":19.27452061694027,"endHours":20.499931784852983,"quality":"auspicious"},{"name":"Kāla","start":"20:30","end":"21:44","startHours":20.499931784852983,"endHours":21.725342952765693,"quality":"inauspicious"},{"name":"Śubha","start":"21:44","end":"22:57","startHours":21.725342952765693,"endHours":22.950754120678404,"quality":"auspicious"},{"name":"Roga","start":"22:57","end":"00:11","startHours":22.950754120678404,"endHours":24.17616528859112,"quality":"inauspicious"},{"name":"Udveg","start":"00:11","end":"01:24","startHours":24.17616528859112,"endHours":25.401576456503832,"quality":"inauspicious"},{"name":"Chala","start":"01:24","end":"02:38","startHours":25.401576456503832,"endHours":26.626987624416543,"quality":"neutral"},{"name":"Labha","start":"02:38","end":"03:51","startHours":26.626987624416543,"endHours":27.852398792329254,"quality":"auspicious"},{"name":"Amṛta","start":"03:51","end":"05:05","startHours":27.852398792329254,"endHours":29.077809960241968,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:05","end":"06:05","startHours":5.077809960241969,"endHours":6.077809960241969,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:05","end":"07:05","startHours":6.077809960241969,"endHours":7.077809960241969,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:05","end":"08:05","startHours":7.077809960241969,"endHours":8.077809960241968,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:05","end":"09:05","startHours":8.077809960241968,"endHours":9.077809960241968,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:05","end":"10:05","startHours":9.077809960241968,"endHours":10.077809960241968,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:05","end":"11:05","startHours":10.077809960241968,"endHours":11.077809960241968,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:05","end":"12:05","startHours":11.077809960241968,"endHours":12.077809960241968,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:05","end":"13:05","startHours":12.077809960241968,"endHours":13.077809960241968,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:05","end":"14:05","startHours":13.077809960241968,"endHours":14.077809960241968,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:05","end":"15:05","startHours":14.077809960241968,"endHours":15.077809960241968,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:05","end":"16:05","startHours":15.077809960241968,"endHours":16.077809960241968,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:05","end":"17:05","startHours":16.077809960241968,"endHours":17.077809960241968,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:05","end":"18:05","startHours":17.077809960241968,"endHours":18.077809960241968,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:05","end":"19:05","startHours":18.077809960241968,"endHours":19.077809960241968,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:05","end":"20:05","startHours":19.077809960241968,"endHours":20.077809960241968,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:05","end":"21:05","startHours":20.077809960241968,"endHours":21.077809960241968,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:05","end":"22:05","startHours":21.077809960241968,"endHours":22.077809960241968,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:05","end":"23:05","startHours":22.077809960241968,"endHours":23.077809960241968,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:05","end":"00:05","startHours":23.077809960241968,"endHours":24.077809960241968,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:05","end":"01:05","startHours":24.077809960241968,"endHours":25.077809960241968,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:05","end":"02:05","startHours":25.077809960241968,"endHours":26.077809960241968,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:05","end":"03:05","startHours":26.077809960241968,"endHours":27.077809960241968,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:05","end":"04:05","startHours":27.077809960241968,"endHours":28.077809960241968,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:05","end":"05:05","startHours":28.077809960241968,"endHours":29.077809960241968,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.019819741056377,"eotMinutes":5.988082684532823,"ayanamsa":26.1013}},"calendars":{"vikram_samvat":2217,"vikram_samvatsara":"Śrīmukha","saka_samvat":2082,"saka_samvatsara":"Raudra","bengali_samvat":1567,"malayalam_era":1336,"nanakshahi_year":691,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Trayodaśī · Vikram 2217 Śrīmukha · Śaka 2082 Raudra"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 11, 2160 CE · Perth, Australia · Vidhyamitra","description":"December 11, 2160 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 05:05, sūryāsta 19:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2160-12-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2160-12-11","sa":"https://sa.vidhyamitra.com/city/perth/2160-12-11","hi":"https://hi.vidhyamitra.com/city/perth/2160-12-11","x-default":"https://vidhyamitra.com/city/perth/2160-12-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T23:02:48.515Z","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":"2026-06-02T23:02:48.515Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T23:02:48.515Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}