{"id":"vidhyamitra:city-day:perth:2181-12-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2181-12-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-12-27","date_display":"December 27, 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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518014.770833,"kali_year":5283,"ahargana":1929549.2708,"sun":{"sidereal_longitude":248.5346,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":138.415,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.8804,"elapsed_within_tithi_degrees":9.8804},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":138.415,"elapsed_within_degrees":5.0817},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":26.9496},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":2181,"month":12,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2518014.770833,"ahargana":1929549.2708,"kali_year":5283,"ayanamsa_lahiri":26.3952,"grahas":{"sun":{"sidereal_longitude":249.26547600000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":135.10037599999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-3.168},"mars":{"sidereal_longitude":237.229376,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":233.76937599999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":144.449276,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":206.816776,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":94.79387600000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":183.194,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":3.194,"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":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2518014.770833,"kali_year":5283,"ahargana":1929549.2708,"sun":{"sidereal_longitude":248.5346,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":138.415,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.8804,"elapsed_within_tithi_degrees":9.8804},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":138.415,"elapsed_within_degrees":5.0817},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":26.9496},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.168,"elongation":110.12},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.168,"opposition_distance":69.88}},"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":"05:11","sunsetLocal":"19:25","solarNoonLocal":"12:18","dayLengthHours":14.227385930704386,"dayLengthDisplay":"14 Hours 13 Mins 39 Secs","nightLengthDisplay":"9 Hours 46 Mins 21 Secs","moonriseLocal":"22:57","moonsetLocal":"10:26","rahuKala":{"name":"Rāhu Kāla","start":"14:05","end":"15:51","startHours":14.078135009928562,"endHours":15.856558251266613,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:11","end":"06:58","startHours":5.186018803238322,"endHours":6.96444204457637,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:45","end":"10:31","startHours":8.74286528591442,"endHours":10.521288527252466,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:30","end":"08:59","startHours":8.505742187069345,"endHours":8.97998838475949,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:47","end":"06:09","startHours":5.778826550351004,"endHours":6.158223508503121,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:46","startHours":11.82546557090037,"endHours":12.773957966280662,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:17","end":"04:14","startHours":3.289034012477737,"endHours":4.237526407858029,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:00","end":"05:11","startHours":4.000403309012956,"endHours":5.186018803238322,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:40","end":"15:37","startHours":14.670942757041246,"endHours":15.619435152421538,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.21340473394271,"endHours":19.61340473394271,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.41340473394271,"endHours":20.006212481055393,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16340473394271,"endHours":20.91340473394271,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:46","startHours":23.82546557090037,"endHours":24.773957966280662,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:11","end":"06:58","startHours":5.186018803238322,"endHours":6.96444204457637,"quality":"auspicious"},{"name":"Roga","start":"06:58","end":"08:45","startHours":6.96444204457637,"endHours":8.74286528591442,"quality":"inauspicious"},{"name":"Udveg","start":"08:45","end":"10:31","startHours":8.74286528591442,"endHours":10.521288527252466,"quality":"inauspicious"},{"name":"Chala","start":"10:31","end":"12:18","startHours":10.521288527252466,"endHours":12.299711768590516,"quality":"neutral"},{"name":"Labha","start":"12:18","end":"14:05","startHours":12.299711768590516,"endHours":14.078135009928562,"quality":"auspicious"},{"name":"Amṛta","start":"14:05","end":"15:51","startHours":14.078135009928562,"endHours":15.856558251266613,"quality":"auspicious"},{"name":"Kāla","start":"15:51","end":"17:38","startHours":15.856558251266613,"endHours":17.63498149260466,"quality":"inauspicious"},{"name":"Śubha","start":"17:38","end":"19:25","startHours":17.63498149260466,"endHours":19.41340473394271,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:25","end":"20:38","startHours":19.41340473394271,"endHours":20.63498149260466,"quality":"auspicious"},{"name":"Kāla","start":"20:38","end":"21:51","startHours":20.63498149260466,"endHours":21.856558251266613,"quality":"inauspicious"},{"name":"Śubha","start":"21:51","end":"23:05","startHours":21.856558251266613,"endHours":23.078135009928566,"quality":"auspicious"},{"name":"Roga","start":"23:05","end":"00:18","startHours":23.078135009928566,"endHours":24.299711768590516,"quality":"inauspicious"},{"name":"Udveg","start":"00:18","end":"01:31","startHours":24.299711768590516,"endHours":25.521288527252466,"quality":"inauspicious"},{"name":"Chala","start":"01:31","end":"02:45","startHours":25.521288527252466,"endHours":26.74286528591442,"quality":"neutral"},{"name":"Labha","start":"02:45","end":"03:58","startHours":26.74286528591442,"endHours":27.964442044576373,"quality":"auspicious"},{"name":"Amṛta","start":"03:58","end":"05:11","startHours":27.964442044576373,"endHours":29.186018803238323,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:11","end":"06:11","startHours":5.186018803238322,"endHours":6.186018803238322,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:11","end":"07:11","startHours":6.186018803238322,"endHours":7.186018803238322,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:11","end":"08:11","startHours":7.186018803238322,"endHours":8.186018803238323,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:11","end":"09:11","startHours":8.186018803238323,"endHours":9.186018803238323,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:11","end":"10:11","startHours":9.186018803238323,"endHours":10.186018803238323,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:11","end":"11:11","startHours":10.186018803238323,"endHours":11.186018803238323,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:11","end":"12:11","startHours":11.186018803238323,"endHours":12.186018803238323,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:11","end":"13:11","startHours":12.186018803238323,"endHours":13.186018803238323,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:11","end":"14:11","startHours":13.186018803238323,"endHours":14.186018803238323,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:11","end":"15:11","startHours":14.186018803238323,"endHours":15.186018803238323,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:11","end":"16:11","startHours":15.186018803238323,"endHours":16.186018803238323,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:11","end":"17:11","startHours":16.186018803238323,"endHours":17.186018803238323,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:11","end":"18:11","startHours":17.186018803238323,"endHours":18.186018803238323,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:11","end":"19:11","startHours":18.186018803238323,"endHours":19.186018803238323,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:11","end":"20:11","startHours":19.186018803238323,"endHours":20.186018803238323,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:11","end":"21:11","startHours":20.186018803238323,"endHours":21.186018803238323,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:11","end":"22:11","startHours":21.186018803238323,"endHours":22.186018803238323,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:11","end":"23:11","startHours":22.186018803238323,"endHours":23.186018803238323,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:11","end":"00:11","startHours":23.186018803238323,"endHours":24.186018803238323,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:11","end":"01:11","startHours":24.186018803238323,"endHours":25.186018803238323,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:11","end":"02:11","startHours":25.186018803238323,"endHours":26.186018803238323,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:11","end":"03:11","startHours":26.186018803238323,"endHours":27.186018803238323,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:11","end":"04:11","startHours":27.186018803238323,"endHours":28.186018803238323,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:11","end":"05:11","startHours":28.186018803238323,"endHours":29.186018803238323,"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"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":-23.31543560595743,"eotMinutes":-1.4247061154310068,"ayanamsa":26.3952}},"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 Ṣaṣṭhī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[],"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 27, 2181 CE · Perth, Australia · Vidhyamitra","description":"December 27, 2181 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:11, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2181-12-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2181-12-27","sa":"https://sa.vidhyamitra.com/city/perth/2181-12-27","hi":"https://hi.vidhyamitra.com/city/perth/2181-12-27","x-default":"https://vidhyamitra.com/city/perth/2181-12-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:38:05.110Z","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":"2026-05-31T18:38:05.110Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:38:05.110Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}