{"id":"vidhyamitra:city-day:perth:2154-02-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2154-02-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2154-02-16","date_display":"February 16, 2154 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":2154,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507838.770833,"kali_year":5255,"ahargana":1919373.2708,"sun":{"sidereal_longitude":301.0384,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":343.9867,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.9483,"elapsed_within_tithi_degrees":6.9483},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":343.9867,"elapsed_within_degrees":10.6533},"yoga":{"number":22,"name":"Sādhya","sum_longitude":285.025},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2154,"month":2,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2507838.770833,"ahargana":1919373.2708,"kali_year":5255,"ayanamsa_lahiri":26.006,"grahas":{"sun":{"sidereal_longitude":301.304574,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":342.437374,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false,"latitude":-1.4177},"mars":{"sidereal_longitude":304.726574,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":274.252574,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":357.552774,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":318.349074,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":112.41117400000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":2.3674,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":182.3674,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":2154,"month":2,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2507838.770833,"kali_year":5255,"ahargana":1919373.2708,"sun":{"sidereal_longitude":301.0384,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":343.9867,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":42.9483,"elapsed_within_tithi_degrees":6.9483},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4,"moon_longitude":343.9867,"elapsed_within_degrees":10.6533},"yoga":{"number":22,"name":"Sādhya","sum_longitude":285.025},"karana":{"half_tithi_index":7,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.418,"elongation":42.948},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.418,"opposition_distance":137.052}},"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":"05:55","sunsetLocal":"19:07","solarNoonLocal":"12:31","dayLengthHours":13.186704571629633,"dayLengthDisplay":"13 Hours 11 Mins 12 Secs","nightLengthDisplay":"10 Hours 48 Mins 48 Secs","moonriseLocal":"09:21","moonsetLocal":"21:10","rahuKala":{"name":"Rāhu Kāla","start":"09:13","end":"10:52","startHours":9.221590667125195,"endHours":10.8699287385789,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:10","end":"15:49","startHours":14.166604881486307,"endHours":15.814942952940012,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:55","end":"07:34","startHours":5.924914524217788,"endHours":7.573252595671492,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:26","startHours":9.001812257598036,"endHours":9.441369076652357,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:50","startHours":6.474360548035689,"endHours":6.826006003279145,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.078709990978282,"endHours":12.957823629086924,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:03","startHours":4.166687248000503,"endHours":5.045800886109145,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:55","startHours":4.826022476581985,"endHours":5.924914524217788,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:36","startHours":14.716050905304208,"endHours":15.59516454341285,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.91161909584742,"endHours":19.31161909584742,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:40","startHours":19.11161909584742,"endHours":19.66106511966532,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.86161909584742,"endHours":20.61161909584742,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.078709990978282,"endHours":24.957823629086924,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:55","end":"07:34","startHours":5.924914524217788,"endHours":7.573252595671492,"quality":"inauspicious"},{"name":"Śubha","start":"07:34","end":"09:13","startHours":7.573252595671492,"endHours":9.221590667125195,"quality":"auspicious"},{"name":"Roga","start":"09:13","end":"10:52","startHours":9.221590667125195,"endHours":10.8699287385789,"quality":"inauspicious"},{"name":"Udveg","start":"10:52","end":"12:31","startHours":10.8699287385789,"endHours":12.518266810032603,"quality":"inauspicious"},{"name":"Chala","start":"12:31","end":"14:10","startHours":12.518266810032603,"endHours":14.166604881486307,"quality":"neutral"},{"name":"Labha","start":"14:10","end":"15:49","startHours":14.166604881486307,"endHours":15.814942952940012,"quality":"auspicious"},{"name":"Amṛta","start":"15:49","end":"17:28","startHours":15.814942952940012,"endHours":17.463281024393716,"quality":"auspicious"},{"name":"Kāla","start":"17:28","end":"19:07","startHours":17.463281024393716,"endHours":19.11161909584742,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:07","end":"20:28","startHours":19.11161909584742,"endHours":20.463281024393716,"quality":"auspicious"},{"name":"Amṛta","start":"20:28","end":"21:49","startHours":20.463281024393716,"endHours":21.81494295294001,"quality":"auspicious"},{"name":"Kāla","start":"21:49","end":"23:10","startHours":21.81494295294001,"endHours":23.166604881486307,"quality":"inauspicious"},{"name":"Śubha","start":"23:10","end":"00:31","startHours":23.166604881486307,"endHours":24.518266810032603,"quality":"auspicious"},{"name":"Roga","start":"00:31","end":"01:52","startHours":24.518266810032603,"endHours":25.8699287385789,"quality":"inauspicious"},{"name":"Udveg","start":"01:52","end":"03:13","startHours":25.8699287385789,"endHours":27.221590667125195,"quality":"inauspicious"},{"name":"Chala","start":"03:13","end":"04:34","startHours":27.221590667125195,"endHours":28.57325259567149,"quality":"neutral"},{"name":"Labha","start":"04:34","end":"05:55","startHours":28.57325259567149,"endHours":29.924914524217787,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:55","end":"06:55","startHours":5.924914524217788,"endHours":6.924914524217788,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:55","end":"07:55","startHours":6.924914524217788,"endHours":7.924914524217788,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:55","end":"08:55","startHours":7.924914524217788,"endHours":8.924914524217787,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:55","end":"09:55","startHours":8.924914524217787,"endHours":9.924914524217787,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:55","end":"10:55","startHours":9.924914524217787,"endHours":10.924914524217787,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:55","end":"11:55","startHours":10.924914524217787,"endHours":11.924914524217787,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:55","end":"12:55","startHours":11.924914524217787,"endHours":12.924914524217787,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:55","end":"13:55","startHours":12.924914524217787,"endHours":13.924914524217787,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:55","end":"14:55","startHours":13.924914524217787,"endHours":14.924914524217787,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:55","end":"15:55","startHours":14.924914524217787,"endHours":15.924914524217787,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:55","end":"16:55","startHours":15.924914524217787,"endHours":16.924914524217787,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:55","end":"17:55","startHours":16.924914524217787,"endHours":17.924914524217787,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:55","end":"18:55","startHours":17.924914524217787,"endHours":18.924914524217787,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:55","end":"19:55","startHours":18.924914524217787,"endHours":19.924914524217787,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:55","end":"20:55","startHours":19.924914524217787,"endHours":20.924914524217787,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:55","end":"21:55","startHours":20.924914524217787,"endHours":21.924914524217787,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:55","end":"22:55","startHours":21.924914524217787,"endHours":22.924914524217787,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:55","end":"23:55","startHours":22.924914524217787,"endHours":23.924914524217787,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:55","end":"00:55","startHours":23.924914524217787,"endHours":24.924914524217787,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:55","end":"01:55","startHours":24.924914524217787,"endHours":25.924914524217787,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:55","end":"02:55","startHours":25.924914524217787,"endHours":26.924914524217787,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:55","end":"03:55","startHours":26.924914524217787,"endHours":27.924914524217787,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:55","end":"04:55","startHours":27.924914524217787,"endHours":28.924914524217787,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:55","end":"05:55","startHours":28.924914524217787,"endHours":29.924914524217787,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.404341950554292,"eotMinutes":-14.538008601956186,"ayanamsa":26.006}},"calendars":{"vikram_samvat":2211,"vikram_samvatsara":"Prabhava","saka_samvat":2076,"saka_samvatsara":"Ānanda","bengali_samvat":1561,"malayalam_era":1330,"nanakshahi_year":685,"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":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturthī · Vikram 2211 Prabhava · Śaka 2076 Ānanda"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 16, 2154 CE · Perth, Australia · Vidhyamitra","description":"February 16, 2154 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:55, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2154-02-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2154-02-16","sa":"https://sa.vidhyamitra.com/city/perth/2154-02-16","hi":"https://hi.vidhyamitra.com/city/perth/2154-02-16","x-default":"https://vidhyamitra.com/city/perth/2154-02-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:56:45.288Z","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":"2026-05-31T10:56:45.288Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:56:45.288Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}