{"id":"vidhyamitra:city-day:perth:2156-12-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2156-12-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2156-12-28","date_display":"December 28, 2156 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":2156,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508884.770833,"kali_year":5258,"ahargana":1920419.2708,"sun":{"sidereal_longitude":250.0442,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":86.8779,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.8337,"elapsed_within_tithi_degrees":4.8337},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":86.8779,"elapsed_within_degrees":6.8779},"yoga":{"number":26,"name":"Indra","sum_longitude":336.9222},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2156,"month":12,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2508884.770833,"ahargana":1920419.2708,"kali_year":5258,"ayanamsa_lahiri":26.046,"grahas":{"sun":{"sidereal_longitude":250.70321,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"moon":{"sidereal_longitude":85.41490999999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false,"latitude":2.8949},"mars":{"sidereal_longitude":171.28611,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":229.21850999999992,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":103.69281000000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"venus":{"sidereal_longitude":237.33301000000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":155.88461000000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":306.9453,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":126.9453,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"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":2156,"month":12,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2508884.770833,"kali_year":5258,"ahargana":1920419.2708,"sun":{"sidereal_longitude":250.0442,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":86.8779,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.8337,"elapsed_within_tithi_degrees":4.8337},"nakshatra":{"number":7,"name":"Punarvasu","pada":3,"moon_longitude":86.8779,"elapsed_within_degrees":6.8779},"yoga":{"number":26,"name":"Indra","sum_longitude":336.9222},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.895,"elongation":163.166},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.895,"opposition_distance":16.834}},"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":"12:18","dayLengthHours":14.222086862340177,"dayLengthDisplay":"14 Hours 13 Mins 20 Secs","nightLengthDisplay":"9 Hours 46 Mins 40 Secs","moonriseLocal":"20:12","moonsetLocal":"06:23","rahuKala":{"name":"Rāhu Kāla","start":"15:52","end":"17:38","startHours":15.862940123323167,"endHours":17.64070098111569,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:45","end":"10:32","startHours":8.751896692153078,"endHours":10.5296575499456,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:18","end":"14:05","startHours":12.307418407738123,"endHours":14.085179265530645,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"08:59","startHours":8.514861911114075,"endHours":8.98893147319208,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:47","end":"06:10","startHours":5.7889619291655405,"endHours":6.168217578827945,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:47","startHours":11.833348845660117,"endHours":12.781487969816128,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:18","end":"04:15","startHours":3.3000967282560096,"endHours":4.248235852412021,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:01","end":"05:12","startHours":4.011201071373018,"endHours":5.196374976568033,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.677766218128152,"endHours":15.625905342284163,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.218461838908212,"endHours":19.61846183890821,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:01","startHours":19.41846183890821,"endHours":20.01104879150572,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16846183890821,"endHours":20.91846183890821,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:47","startHours":23.833348845660115,"endHours":24.78148796981613,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:12","end":"06:58","startHours":5.196374976568033,"endHours":6.974135834360555,"quality":"inauspicious"},{"name":"Udveg","start":"06:58","end":"08:45","startHours":6.974135834360555,"endHours":8.751896692153078,"quality":"inauspicious"},{"name":"Chala","start":"08:45","end":"10:32","startHours":8.751896692153078,"endHours":10.5296575499456,"quality":"neutral"},{"name":"Labha","start":"10:32","end":"12:18","startHours":10.5296575499456,"endHours":12.307418407738123,"quality":"auspicious"},{"name":"Amṛta","start":"12:18","end":"14:05","startHours":12.307418407738123,"endHours":14.085179265530645,"quality":"auspicious"},{"name":"Kāla","start":"14:05","end":"15:52","startHours":14.085179265530645,"endHours":15.862940123323167,"quality":"inauspicious"},{"name":"Śubha","start":"15:52","end":"17:38","startHours":15.862940123323167,"endHours":17.64070098111569,"quality":"auspicious"},{"name":"Roga","start":"17:38","end":"19:25","startHours":17.64070098111569,"endHours":19.41846183890821,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:25","end":"20:38","startHours":19.41846183890821,"endHours":20.64070098111569,"quality":"inauspicious"},{"name":"Śubha","start":"20:38","end":"21:52","startHours":20.64070098111569,"endHours":21.862940123323167,"quality":"auspicious"},{"name":"Roga","start":"21:52","end":"23:05","startHours":21.862940123323167,"endHours":23.085179265530645,"quality":"inauspicious"},{"name":"Udveg","start":"23:05","end":"00:18","startHours":23.085179265530645,"endHours":24.307418407738123,"quality":"inauspicious"},{"name":"Chala","start":"00:18","end":"01:32","startHours":24.307418407738123,"endHours":25.5296575499456,"quality":"neutral"},{"name":"Labha","start":"01:32","end":"02:45","startHours":25.5296575499456,"endHours":26.75189669215308,"quality":"auspicious"},{"name":"Amṛta","start":"02:45","end":"03:58","startHours":26.75189669215308,"endHours":27.974135834360556,"quality":"auspicious"},{"name":"Kāla","start":"03:58","end":"05:12","startHours":27.974135834360556,"endHours":29.196374976568034,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.196374976568033,"endHours":6.196374976568033,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.196374976568033,"endHours":7.196374976568033,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.196374976568033,"endHours":8.196374976568034,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.196374976568034,"endHours":9.196374976568034,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.196374976568034,"endHours":10.196374976568034,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.196374976568034,"endHours":11.196374976568034,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.196374976568034,"endHours":12.196374976568034,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.196374976568034,"endHours":13.196374976568034,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.196374976568034,"endHours":14.196374976568034,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.196374976568034,"endHours":15.196374976568034,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.196374976568034,"endHours":16.196374976568034,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.196374976568034,"endHours":17.196374976568034,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.196374976568034,"endHours":18.196374976568034,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.196374976568034,"endHours":19.196374976568034,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.196374976568034,"endHours":20.196374976568034,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.196374976568034,"endHours":21.196374976568034,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.196374976568034,"endHours":22.196374976568034,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.196374976568034,"endHours":23.196374976568034,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.196374976568034,"endHours":24.196374976568034,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.196374976568034,"endHours":25.196374976568034,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.196374976568034,"endHours":26.196374976568034,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.196374976568034,"endHours":27.196374976568034,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.196374976568034,"endHours":28.196374976568034,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.196374976568034,"endHours":29.196374976568034,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Lumba","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":-23.264490100830653,"eotMinutes":-1.8871044642874448,"ayanamsa":26.046}},"calendars":{"vikram_samvat":2213,"vikram_samvatsara":"Śukla","saka_samvat":2078,"saka_samvatsara":"Nala","bengali_samvat":1563,"malayalam_era":1332,"nanakshahi_year":687,"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 Dvitīyā · Vikram 2213 Śukla · Śaka 2078 Nala"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","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 28, 2156 CE · Perth, Australia · Vidhyamitra","description":"December 28, 2156 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:12, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2156-12-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2156-12-28","sa":"https://sa.vidhyamitra.com/city/perth/2156-12-28","hi":"https://hi.vidhyamitra.com/city/perth/2156-12-28","x-default":"https://vidhyamitra.com/city/perth/2156-12-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T15:00:06.165Z","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":"2026-05-31T15:00:06.165Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T15:00:06.165Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}