{"id":"vidhyamitra:city-day:perth:2172-12-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2172-12-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2172-12-06","date_display":"December 6, 2172 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":2172,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514706.770833,"kali_year":5274,"ahargana":1926241.2708,"sun":{"sidereal_longitude":227.337,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":112.339,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.002,"elapsed_within_tithi_degrees":5.002},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.339,"elapsed_within_degrees":5.6723},"yoga":{"number":26,"name":"Indra","sum_longitude":339.676},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2172,"month":12,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514706.770833,"ahargana":1926241.2708,"kali_year":5274,"ayanamsa_lahiri":26.2687,"grahas":{"sun":{"sidereal_longitude":228.22736599999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":109.15026599999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false,"latitude":4.1144},"mars":{"sidereal_longitude":274.79256599999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":225.99606599999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":214.52946599999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":210.595466,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":326.436466,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":358.4677,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":178.4677,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":2172,"month":12,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514706.770833,"kali_year":5274,"ahargana":1926241.2708,"sun":{"sidereal_longitude":227.337,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":112.339,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.002,"elapsed_within_tithi_degrees":5.002},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":112.339,"elapsed_within_degrees":5.6723},"yoga":{"number":26,"name":"Indra","sum_longitude":339.676},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.114,"elongation":114.998},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.114,"opposition_distance":65.002}},"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":"05:04","sunsetLocal":"19:13","solarNoonLocal":"12:08","dayLengthHours":14.146854685096885,"dayLengthDisplay":"14 Hours 08 Mins 49 Secs","nightLengthDisplay":"9 Hours 51 Mins 11 Secs","moonriseLocal":"22:51","moonsetLocal":"09:33","rahuKala":{"name":"Rāhu Kāla","start":"17:27","end":"19:13","startHours":17.44532251566547,"endHours":19.21367935130258,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:08","end":"13:55","startHours":12.140252008754139,"endHours":13.90860884439125,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:41","end":"17:27","startHours":15.67696568002836,"endHours":17.44532251566547,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:50","startHours":8.367757426061635,"endHours":8.839319248898198,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:39","end":"06:02","startHours":5.656276944751399,"endHours":6.033526403020649,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:37","startHours":11.668690185917576,"endHours":12.611813831590702,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:07","startHours":3.1805773748594444,"endHours":4.12370102053257,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:53","end":"05:04","startHours":3.8879201091142885,"endHours":5.0668246662056955,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:26","startHours":14.498061122936953,"endHours":15.441184768610078,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:01","end":"19:25","startHours":19.01367935130258,"endHours":19.41367935130258,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:13","end":"19:48","startHours":19.21367935130258,"endHours":19.803131629848284,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:58","end":"20:43","startHours":18.96367935130258,"endHours":20.71367935130258,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:37","startHours":23.668690185917576,"endHours":24.611813831590702,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:04","end":"06:50","startHours":5.0668246662056955,"endHours":6.835181501842806,"quality":"inauspicious"},{"name":"Chala","start":"06:50","end":"08:36","startHours":6.835181501842806,"endHours":8.603538337479916,"quality":"neutral"},{"name":"Labha","start":"08:36","end":"10:22","startHours":8.603538337479916,"endHours":10.371895173117029,"quality":"auspicious"},{"name":"Amṛta","start":"10:22","end":"12:08","startHours":10.371895173117029,"endHours":12.140252008754139,"quality":"auspicious"},{"name":"Kāla","start":"12:08","end":"13:55","startHours":12.140252008754139,"endHours":13.90860884439125,"quality":"inauspicious"},{"name":"Śubha","start":"13:55","end":"15:41","startHours":13.90860884439125,"endHours":15.67696568002836,"quality":"auspicious"},{"name":"Roga","start":"15:41","end":"17:27","startHours":15.67696568002836,"endHours":17.44532251566547,"quality":"inauspicious"},{"name":"Udveg","start":"17:27","end":"19:13","startHours":17.44532251566547,"endHours":19.21367935130258,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:13","end":"20:27","startHours":19.21367935130258,"endHours":20.44532251566547,"quality":"auspicious"},{"name":"Roga","start":"20:27","end":"21:41","startHours":20.44532251566547,"endHours":21.67696568002836,"quality":"inauspicious"},{"name":"Udveg","start":"21:41","end":"22:55","startHours":21.67696568002836,"endHours":22.90860884439125,"quality":"inauspicious"},{"name":"Chala","start":"22:55","end":"00:08","startHours":22.90860884439125,"endHours":24.14025200875414,"quality":"neutral"},{"name":"Labha","start":"00:08","end":"01:22","startHours":24.14025200875414,"endHours":25.37189517311703,"quality":"auspicious"},{"name":"Amṛta","start":"01:22","end":"02:36","startHours":25.37189517311703,"endHours":26.603538337479918,"quality":"auspicious"},{"name":"Kāla","start":"02:36","end":"03:50","startHours":26.603538337479918,"endHours":27.835181501842804,"quality":"inauspicious"},{"name":"Śubha","start":"03:50","end":"05:04","startHours":27.835181501842804,"endHours":29.066824666205697,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.0668246662056955,"endHours":6.0668246662056955,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.0668246662056955,"endHours":7.0668246662056955,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.0668246662056955,"endHours":8.066824666205695,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.066824666205695,"endHours":9.066824666205695,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.066824666205695,"endHours":10.066824666205695,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.066824666205695,"endHours":11.066824666205695,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.066824666205695,"endHours":12.066824666205695,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.066824666205695,"endHours":13.066824666205695,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.066824666205695,"endHours":14.066824666205695,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.066824666205695,"endHours":15.066824666205695,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.066824666205695,"endHours":16.066824666205697,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.066824666205697,"endHours":17.066824666205697,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.066824666205697,"endHours":18.066824666205697,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.066824666205697,"endHours":19.066824666205697,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.066824666205697,"endHours":20.066824666205697,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.066824666205697,"endHours":21.066824666205697,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.066824666205697,"endHours":22.066824666205697,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.066824666205697,"endHours":23.066824666205697,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.066824666205697,"endHours":24.066824666205697,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.066824666205697,"endHours":25.066824666205697,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.066824666205697,"endHours":26.066824666205697,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.066824666205697,"endHours":27.066824666205697,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.066824666205697,"endHours":28.066824666205697,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.066824666205697,"endHours":29.066824666205697,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"North-East","anandadiYoga":{"name":"Vajra","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":-22.535749731060132,"eotMinutes":8.142879474751563,"ayanamsa":26.2687}},"calendars":{"vikram_samvat":2229,"vikram_samvatsara":"Pārthiva","saka_samvat":2094,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1579,"malayalam_era":1348,"nanakshahi_year":703,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","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 Kṛṣṇa Ṣaṣṭhī · Vikram 2229 Pārthiva · Śaka 2094 Aṅgirasa"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 6, 2172 CE · Perth, Australia · Vidhyamitra","description":"December 6, 2172 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:04, sūryāsta 19:13.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2172-12-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2172-12-06","sa":"https://sa.vidhyamitra.com/city/perth/2172-12-06","hi":"https://hi.vidhyamitra.com/city/perth/2172-12-06","x-default":"https://vidhyamitra.com/city/perth/2172-12-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:34:07.617Z","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":"2026-05-31T02:34:07.617Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:34:07.617Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}