{"id":"vidhyamitra:city-day:perth:2146-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2146-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2146-02-13","date_display":"February 13, 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":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2504913.770833,"kali_year":5247,"ahargana":1916448.2708,"sun":{"sidereal_longitude":298.0598,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":323.416,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.3562,"elapsed_within_tithi_degrees":1.3562},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":323.416,"elapsed_within_degrees":3.416},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.4759},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2146,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2504913.770833,"ahargana":1916448.2708,"kali_year":5247,"ayanamsa_lahiri":25.8942,"grahas":{"sun":{"sidereal_longitude":298.323131,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":323.156931,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false,"latitude":1.0824},"mars":{"sidereal_longitude":238.54933099999994,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":288.323131,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":129.18603099999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":314.15703099999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":0.36213099999997667,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":157.348,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":337.348,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2146,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2504913.770833,"kali_year":5247,"ahargana":1916448.2708,"sun":{"sidereal_longitude":298.0598,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":323.416,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.3562,"elapsed_within_tithi_degrees":1.3562},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2,"moon_longitude":323.416,"elapsed_within_degrees":3.416},"yoga":{"number":20,"name":"Śiva","sum_longitude":261.4759},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.082,"elongation":25.356},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.082,"opposition_distance":154.644}},"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":"05:53","sunsetLocal":"19:10","solarNoonLocal":"12:31","dayLengthHours":13.279818673616532,"dayLengthDisplay":"13 Hours 16 Mins 47 Secs","nightLengthDisplay":"10 Hours 43 Mins 13 Secs","moonriseLocal":"07:57","moonsetLocal":"20:24","rahuKala":{"name":"Rāhu Kāla","start":"17:30","end":"19:10","startHours":17.499224090283235,"endHours":19.1592014244853,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:31","end":"14:11","startHours":12.519292087677034,"endHours":14.179269421879102,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:50","end":"17:30","startHours":15.839246756081167,"endHours":17.499224090283235,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:25","startHours":8.97800710804596,"endHours":9.420667730499844,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:47","startHours":6.432708528936124,"endHours":6.7868370268992315,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:58","startHours":12.07663146522315,"endHours":12.961952710130918,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:07","end":"05:00","startHours":4.1087402610532315,"endHours":4.994061505961,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:46","end":"05:53","startHours":4.772731194734058,"endHours":5.879382750868769,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:37","startHours":14.732595199946456,"endHours":15.617916444854224,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.9592014244853,"endHours":19.3592014244853,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:43","startHours":19.1592014244853,"endHours":19.712527202552657,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.9092014244853,"endHours":20.6592014244853,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:58","startHours":24.076631465223148,"endHours":24.96195271013092,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:53","end":"07:32","startHours":5.879382750868769,"endHours":7.539360085070835,"quality":"inauspicious"},{"name":"Chala","start":"07:32","end":"09:12","startHours":7.539360085070835,"endHours":9.1993374192729,"quality":"neutral"},{"name":"Labha","start":"09:12","end":"10:52","startHours":9.1993374192729,"endHours":10.859314753474969,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:31","startHours":10.859314753474969,"endHours":12.519292087677034,"quality":"auspicious"},{"name":"Kāla","start":"12:31","end":"14:11","startHours":12.519292087677034,"endHours":14.179269421879102,"quality":"inauspicious"},{"name":"Śubha","start":"14:11","end":"15:50","startHours":14.179269421879102,"endHours":15.839246756081167,"quality":"auspicious"},{"name":"Roga","start":"15:50","end":"17:30","startHours":15.839246756081167,"endHours":17.499224090283235,"quality":"inauspicious"},{"name":"Udveg","start":"17:30","end":"19:10","startHours":17.499224090283235,"endHours":19.1592014244853,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:10","end":"20:30","startHours":19.1592014244853,"endHours":20.499224090283235,"quality":"auspicious"},{"name":"Roga","start":"20:30","end":"21:50","startHours":20.499224090283235,"endHours":21.839246756081167,"quality":"inauspicious"},{"name":"Udveg","start":"21:50","end":"23:11","startHours":21.839246756081167,"endHours":23.1792694218791,"quality":"inauspicious"},{"name":"Chala","start":"23:11","end":"00:31","startHours":23.1792694218791,"endHours":24.519292087677034,"quality":"neutral"},{"name":"Labha","start":"00:31","end":"01:52","startHours":24.519292087677034,"endHours":25.85931475347497,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:12","startHours":25.85931475347497,"endHours":27.1993374192729,"quality":"auspicious"},{"name":"Kāla","start":"03:12","end":"04:32","startHours":27.1993374192729,"endHours":28.539360085070832,"quality":"inauspicious"},{"name":"Śubha","start":"04:32","end":"05:53","startHours":28.539360085070832,"endHours":29.879382750868768,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.879382750868769,"endHours":6.879382750868769,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.879382750868769,"endHours":7.879382750868769,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.879382750868769,"endHours":8.879382750868768,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.879382750868768,"endHours":9.879382750868768,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.879382750868768,"endHours":10.879382750868768,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.879382750868768,"endHours":11.879382750868768,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.879382750868768,"endHours":12.879382750868768,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.879382750868768,"endHours":13.879382750868768,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.879382750868768,"endHours":14.879382750868768,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.879382750868768,"endHours":15.879382750868768,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.879382750868768,"endHours":16.879382750868768,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.879382750868768,"endHours":17.879382750868768,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.879382750868768,"endHours":18.879382750868768,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.879382750868768,"endHours":19.879382750868768,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.879382750868768,"endHours":20.879382750868768,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.879382750868768,"endHours":21.879382750868768,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.879382750868768,"endHours":22.879382750868768,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.879382750868768,"endHours":23.879382750868768,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.879382750868768,"endHours":24.879382750868768,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.879382750868768,"endHours":25.879382750868768,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.879382750868768,"endHours":26.879382750868768,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.879382750868768,"endHours":27.879382750868768,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.879382750868768,"endHours":28.879382750868768,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.879382750868768,"endHours":29.879382750868768,"planetary_lord":"Jupiter"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-13.447781753083342,"eotMinutes":-14.599525260622107,"ayanamsa":25.8942}},"calendars":{"vikram_samvat":2203,"vikram_samvatsara":"Siddhārthī","saka_samvat":2068,"saka_samvatsara":"Parābhava","bengali_samvat":1553,"malayalam_era":1322,"nanakshahi_year":677,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Tṛtīyā · Vikram 2203 Siddhārthī · Śaka 2068 Parābhava"},"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 February 13, 2146 CE · Perth, Australia · Vidhyamitra","description":"February 13, 2146 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 05:53, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2146-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2146-02-13","sa":"https://sa.vidhyamitra.com/city/perth/2146-02-13","hi":"https://hi.vidhyamitra.com/city/perth/2146-02-13","x-default":"https://vidhyamitra.com/city/perth/2146-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T00:02:18.246Z","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":"2026-06-03T00:02:18.246Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T00:02:18.246Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}