{"id":"vidhyamitra:city-day:perth:2075-02-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2075-02-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2075-02-18","date_display":"February 18, 2075 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":2075,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478986.770833,"kali_year":5176,"ahargana":1890521.2708,"sun":{"sidereal_longitude":304.5313,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":340.5605,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.0292,"elapsed_within_tithi_degrees":0.0292},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":340.5605,"elapsed_within_degrees":7.2271},"yoga":{"number":22,"name":"Sādhya","sum_longitude":285.0918},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2075,"month":2,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2478986.770833,"ahargana":1890521.2708,"kali_year":5176,"ayanamsa_lahiri":24.9025,"grahas":{"sun":{"sidereal_longitude":304.59723299999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":339.656633,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false,"latitude":-4.2138},"mars":{"sidereal_longitude":307.69293300000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":278.87903299999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":134.628833,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":263.720233,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":231.64293299999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":91.0852,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":271.0852,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2075,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2478986.770833,"kali_year":5176,"ahargana":1890521.2708,"sun":{"sidereal_longitude":304.5313,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":340.5605,"rashi":12,"rashi_name":"Mīna"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.0292,"elapsed_within_tithi_degrees":0.0292},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3,"moon_longitude":340.5605,"elapsed_within_degrees":7.2271},"yoga":{"number":22,"name":"Sādhya","sum_longitude":285.0918},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.214,"elongation":36.029},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.214,"opposition_distance":143.971}},"eclipse_window_40days":[{"offset_days":-17,"type":"lunar","occurs":true,"moon_latitude":1.053,"opposition_distance":1.686}]},"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":"05:57","sunsetLocal":"19:05","solarNoonLocal":"12:31","dayLengthHours":13.11965048668628,"dayLengthDisplay":"13 Hours 07 Mins 11 Secs","nightLengthDisplay":"10 Hours 52 Mins 49 Secs","moonriseLocal":"08:53","moonsetLocal":"20:49","rahuKala":{"name":"Rāhu Kāla","start":"07:36","end":"09:14","startHours":7.596679004365983,"endHours":9.236635315201768,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:53","end":"12:31","startHours":10.876591626037552,"endHours":12.516547936873337,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:09","end":"15:48","startHours":14.156504247709123,"endHours":15.796460558544908,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:27","startHours":9.017974473756997,"endHours":9.45529615664654,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:51","startHours":6.5033747971421265,"endHours":6.853232143453761,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.079226253983794,"endHours":12.95386961976288,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:12","end":"05:05","startHours":4.207435961972027,"endHours":5.082079327751113,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:57","startHours":4.863418486306341,"endHours":5.956722693530198,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:35","startHours":14.703156351321052,"endHours":15.577799717100138,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:53","end":"19:17","startHours":18.87637318021648,"endHours":19.276373180216478,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:05","end":"19:37","startHours":19.07637318021648,"endHours":19.623025283828408,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:50","end":"20:35","startHours":18.82637318021648,"endHours":20.57637318021648,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.079226253983794,"endHours":24.95386961976288,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:57","end":"07:36","startHours":5.956722693530198,"endHours":7.596679004365983,"quality":"auspicious"},{"name":"Kāla","start":"07:36","end":"09:14","startHours":7.596679004365983,"endHours":9.236635315201768,"quality":"inauspicious"},{"name":"Śubha","start":"09:14","end":"10:53","startHours":9.236635315201768,"endHours":10.876591626037552,"quality":"auspicious"},{"name":"Roga","start":"10:53","end":"12:31","startHours":10.876591626037552,"endHours":12.516547936873337,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"14:09","startHours":12.516547936873337,"endHours":14.156504247709123,"quality":"inauspicious"},{"name":"Chala","start":"14:09","end":"15:48","startHours":14.156504247709123,"endHours":15.796460558544908,"quality":"neutral"},{"name":"Labha","start":"15:48","end":"17:26","startHours":15.796460558544908,"endHours":17.436416869380693,"quality":"auspicious"},{"name":"Amṛta","start":"17:26","end":"19:05","startHours":17.436416869380693,"endHours":19.07637318021648,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:05","end":"20:26","startHours":19.07637318021648,"endHours":20.436416869380693,"quality":"neutral"},{"name":"Labha","start":"20:26","end":"21:48","startHours":20.436416869380693,"endHours":21.796460558544908,"quality":"auspicious"},{"name":"Amṛta","start":"21:48","end":"23:09","startHours":21.796460558544908,"endHours":23.156504247709123,"quality":"auspicious"},{"name":"Kāla","start":"23:09","end":"00:31","startHours":23.156504247709123,"endHours":24.516547936873337,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"01:53","startHours":24.516547936873337,"endHours":25.876591626037552,"quality":"auspicious"},{"name":"Roga","start":"01:53","end":"03:14","startHours":25.876591626037552,"endHours":27.236635315201767,"quality":"inauspicious"},{"name":"Udveg","start":"03:14","end":"04:36","startHours":27.236635315201767,"endHours":28.59667900436598,"quality":"inauspicious"},{"name":"Chala","start":"04:36","end":"05:57","startHours":28.59667900436598,"endHours":29.956722693530196,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:57","end":"06:57","startHours":5.956722693530198,"endHours":6.956722693530198,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:57","end":"07:57","startHours":6.956722693530198,"endHours":7.956722693530198,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:57","end":"08:57","startHours":7.956722693530198,"endHours":8.956722693530198,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:57","end":"09:57","startHours":8.956722693530198,"endHours":9.956722693530198,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:57","end":"10:57","startHours":9.956722693530198,"endHours":10.956722693530198,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:57","end":"11:57","startHours":10.956722693530198,"endHours":11.956722693530198,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:57","end":"12:57","startHours":11.956722693530198,"endHours":12.956722693530198,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:57","end":"13:57","startHours":12.956722693530198,"endHours":13.956722693530198,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:57","end":"14:57","startHours":13.956722693530198,"endHours":14.956722693530198,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:57","end":"15:57","startHours":14.956722693530198,"endHours":15.956722693530198,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:57","end":"16:57","startHours":15.956722693530198,"endHours":16.956722693530196,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:57","end":"17:57","startHours":16.956722693530196,"endHours":17.956722693530196,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:57","end":"18:57","startHours":17.956722693530196,"endHours":18.956722693530196,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:57","end":"19:57","startHours":18.956722693530196,"endHours":19.956722693530196,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:57","end":"20:57","startHours":19.956722693530196,"endHours":20.956722693530196,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:57","end":"21:57","startHours":20.956722693530196,"endHours":21.956722693530196,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:57","end":"22:57","startHours":21.956722693530196,"endHours":22.956722693530196,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:57","end":"23:57","startHours":22.956722693530196,"endHours":23.956722693530196,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:57","end":"00:57","startHours":23.956722693530196,"endHours":24.956722693530196,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:57","end":"01:57","startHours":24.956722693530196,"endHours":25.956722693530196,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:57","end":"02:57","startHours":25.956722693530196,"endHours":26.956722693530196,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:57","end":"03:57","startHours":26.956722693530196,"endHours":27.956722693530196,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:57","end":"04:57","startHours":27.956722693530196,"endHours":28.956722693530196,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:57","end":"05:57","startHours":28.956722693530196,"endHours":29.956722693530196,"planetary_lord":"Venus"}],"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":"North-East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.646103518529223,"eotMinutes":-14.434876212400278,"ayanamsa":24.9025}},"calendars":{"vikram_samvat":2132,"vikram_samvatsara":"Kīlaka","saka_samvat":1997,"saka_samvatsara":"Manmatha","bengali_samvat":1482,"malayalam_era":1251,"nanakshahi_year":606,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","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 Śukla Caturthī · Vikram 2132 Kīlaka · Śaka 1997 Manmatha"},"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":"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 18, 2075 CE · Perth, Australia · Vidhyamitra","description":"February 18, 2075 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:57, sūryāsta 19:05.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2075-02-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2075-02-18","sa":"https://sa.vidhyamitra.com/city/perth/2075-02-18","hi":"https://hi.vidhyamitra.com/city/perth/2075-02-18","x-default":"https://vidhyamitra.com/city/perth/2075-02-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:20:43.958Z","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":"2026-05-31T17:20:43.958Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:20:43.958Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}