{"id":"vidhyamitra:city-day:perth:2146-02-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2146-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2146-02-28","date_display":"February 28, 2146 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":2146,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2504928.770833,"kali_year":5247,"ahargana":1916463.2708,"sun":{"sidereal_longitude":313.2579,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":149.666,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.4081,"elapsed_within_tithi_degrees":4.4081},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.666,"elapsed_within_degrees":2.9993},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.9239},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2146,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2504928.770833,"ahargana":1916463.2708,"kali_year":5247,"ayanamsa_lahiri":25.8947,"grahas":{"sun":{"sidereal_longitude":313.454158,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":149.94395799999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":-0.5391},"mars":{"sidereal_longitude":248.73705800000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":285.542458,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":127.23705799999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":332.80955800000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":1.7033579999999802,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":156.5532,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":336.5532,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2146,"month":2,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2504928.770833,"kali_year":5247,"ahargana":1916463.2708,"sun":{"sidereal_longitude":313.2579,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":149.666,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":196.4081,"elapsed_within_tithi_degrees":4.4081},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":149.666,"elapsed_within_degrees":2.9993},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.9239},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.539,"elongation":163.592},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.539,"opposition_distance":16.408}},"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":"06:06","sunsetLocal":"18:54","solarNoonLocal":"12:30","dayLengthHours":12.808700931691302,"dayLengthDisplay":"12 Hours 48 Mins 31 Secs","nightLengthDisplay":"11 Hours 11 Mins 29 Secs","moonriseLocal":"19:37","moonsetLocal":"07:34","rahuKala":{"name":"Rāhu Kāla","start":"07:42","end":"09:18","startHours":7.693088131049553,"endHours":9.294175747510966,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:54","end":"12:30","startHours":10.89526336397238,"endHours":12.496350980433792,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:06","end":"15:42","startHours":14.097438596895206,"endHours":15.698526213356615,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:30","startHours":9.080697398649445,"endHours":9.507654096372487,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.625696386741945,"endHours":6.967261744920379,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:55","startHours":12.069394282710748,"endHours":12.923307678156833,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:14","startHours":4.384173723695967,"endHours":5.238087119142054,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:06","startHours":5.024608770280532,"endHours":6.092000514588141,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:29","startHours":14.631134469049009,"endHours":15.485047864495096,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:42","end":"19:06","startHours":18.700701446279442,"endHours":19.10070144627944,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:54","end":"19:26","startHours":18.90070144627944,"endHours":19.434397318433245,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:39","end":"20:24","startHours":18.65070144627944,"endHours":20.40070144627944,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:55","startHours":24.069394282710746,"endHours":24.92330767815683,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:06","end":"07:42","startHours":6.092000514588141,"endHours":7.693088131049553,"quality":"auspicious"},{"name":"Kāla","start":"07:42","end":"09:18","startHours":7.693088131049553,"endHours":9.294175747510966,"quality":"inauspicious"},{"name":"Śubha","start":"09:18","end":"10:54","startHours":9.294175747510966,"endHours":10.89526336397238,"quality":"auspicious"},{"name":"Roga","start":"10:54","end":"12:30","startHours":10.89526336397238,"endHours":12.496350980433792,"quality":"inauspicious"},{"name":"Udveg","start":"12:30","end":"14:06","startHours":12.496350980433792,"endHours":14.097438596895206,"quality":"inauspicious"},{"name":"Chala","start":"14:06","end":"15:42","startHours":14.097438596895206,"endHours":15.698526213356615,"quality":"neutral"},{"name":"Labha","start":"15:42","end":"17:18","startHours":15.698526213356615,"endHours":17.29961382981803,"quality":"auspicious"},{"name":"Amṛta","start":"17:18","end":"18:54","startHours":17.29961382981803,"endHours":18.90070144627944,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:54","end":"20:18","startHours":18.90070144627944,"endHours":20.29961382981803,"quality":"neutral"},{"name":"Labha","start":"20:18","end":"21:42","startHours":20.29961382981803,"endHours":21.698526213356615,"quality":"auspicious"},{"name":"Amṛta","start":"21:42","end":"23:06","startHours":21.698526213356615,"endHours":23.097438596895202,"quality":"auspicious"},{"name":"Kāla","start":"23:06","end":"00:30","startHours":23.097438596895202,"endHours":24.49635098043379,"quality":"inauspicious"},{"name":"Śubha","start":"00:30","end":"01:54","startHours":24.49635098043379,"endHours":25.895263363972376,"quality":"auspicious"},{"name":"Roga","start":"01:54","end":"03:18","startHours":25.895263363972376,"endHours":27.294175747510966,"quality":"inauspicious"},{"name":"Udveg","start":"03:18","end":"04:42","startHours":27.294175747510966,"endHours":28.693088131049553,"quality":"inauspicious"},{"name":"Chala","start":"04:42","end":"06:06","startHours":28.693088131049553,"endHours":30.09200051458814,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.092000514588141,"endHours":7.092000514588141,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.092000514588141,"endHours":8.09200051458814,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.09200051458814,"endHours":9.09200051458814,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.09200051458814,"endHours":10.09200051458814,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.09200051458814,"endHours":11.09200051458814,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.09200051458814,"endHours":12.09200051458814,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.09200051458814,"endHours":13.09200051458814,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.09200051458814,"endHours":14.09200051458814,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.09200051458814,"endHours":15.09200051458814,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.09200051458814,"endHours":16.09200051458814,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.09200051458814,"endHours":17.09200051458814,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.09200051458814,"endHours":18.09200051458814,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.09200051458814,"endHours":19.09200051458814,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.09200051458814,"endHours":20.09200051458814,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.09200051458814,"endHours":21.09200051458814,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.09200051458814,"endHours":22.09200051458814,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.09200051458814,"endHours":23.09200051458814,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.09200051458814,"endHours":24.09200051458814,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.09200051458814,"endHours":25.09200051458814,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.09200051458814,"endHours":26.09200051458814,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.09200051458814,"endHours":27.09200051458814,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.09200051458814,"endHours":28.09200051458814,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.09200051458814,"endHours":29.09200051458814,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.09200051458814,"endHours":30.09200051458814,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-8.063534147941091,"eotMinutes":-13.223058826027486,"ayanamsa":25.8947}},"calendars":{"vikram_samvat":2203,"vikram_samvatsara":"Siddhārthī","saka_samvat":2068,"saka_samvatsara":"Parābhava","bengali_samvat":1553,"malayalam_era":1322,"nanakshahi_year":677,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Dvitīyā · Vikram 2203 Siddhārthī · Śaka 2068 Parābhava"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 February 28, 2146 CE · Perth, Australia · Vidhyamitra","description":"February 28, 2146 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 06:06, sūryāsta 18:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2146-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2146-02-28","sa":"https://sa.vidhyamitra.com/city/perth/2146-02-28","hi":"https://hi.vidhyamitra.com/city/perth/2146-02-28","x-default":"https://vidhyamitra.com/city/perth/2146-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T13:37:52.504Z","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":"2026-06-01T13:37:52.504Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T13:37:52.504Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}