{"id":"vidhyamitra:city-day:perth:1998-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1998-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-02-10","date_display":"February 10, 1998 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":1998,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450854.770833,"kali_year":5099,"ahargana":1862389.2708,"sun":{"sidereal_longitude":297.3435,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":102.1037,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.7602,"elapsed_within_tithi_degrees":8.7602},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":102.1037,"elapsed_within_degrees":8.7704},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.4472},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"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":1998,"month":2,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450854.770833,"ahargana":1862389.2708,"kali_year":5099,"ayanamsa_lahiri":23.8266,"grahas":{"sun":{"sidereal_longitude":297.266482,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":101.432682,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":-2.8636},"mars":{"sidereal_longitude":318.5212819999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":288.22598199999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":307.490282,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":264.86228200000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":352.353882,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":141.654,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.654,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva 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":1998,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450854.770833,"kali_year":5099,"ahargana":1862389.2708,"sun":{"sidereal_longitude":297.3435,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":102.1037,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":164.7602,"elapsed_within_tithi_degrees":8.7602},"nakshatra":{"number":8,"name":"Puṣya","pada":3,"moon_longitude":102.1037,"elapsed_within_degrees":8.7704},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.4472},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.864,"elongation":164.76},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.864,"opposition_distance":15.24}},"eclipse_window_40days":[{"offset_days":17,"type":"solar","occurs":true,"moon_latitude":0.255,"elongation":2.931}]},"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":"05:50","sunsetLocal":"19:12","solarNoonLocal":"12:31","dayLengthHours":13.371662020277832,"dayLengthDisplay":"13 Hours 22 Mins 18 Secs","nightLengthDisplay":"10 Hours 37 Mins 42 Secs","moonriseLocal":"18:14","moonsetLocal":"04:41","rahuKala":{"name":"Rāhu Kāla","start":"15:52","end":"17:32","startHours":15.861326929928197,"endHours":17.532784682462925,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:11","end":"10:51","startHours":9.175495919789281,"endHours":10.846953672324009,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"14:11","startHours":12.518411424858737,"endHours":14.189869177393465,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:24","startHours":8.952634886117982,"endHours":9.398356953460578,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:23","end":"06:45","startHours":6.389732998898065,"endHours":6.746310652772141,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:58","startHours":12.072689357516143,"endHours":12.96413349220133,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:03","end":"04:56","startHours":4.049692145349445,"endHours":4.941136280034633,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:43","end":"05:50","startHours":4.718275246363336,"endHours":5.832580414719822,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:45","end":"15:38","startHours":14.747021761571709,"endHours":15.638465896256898,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:00","end":"19:24","startHours":19.004242434997654,"endHours":19.404242434997652,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:12","end":"19:46","startHours":19.204242434997653,"endHours":19.761395019175897,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:57","end":"20:42","startHours":18.954242434997653,"endHours":20.704242434997653,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:58","startHours":24.072689357516143,"endHours":24.96413349220133,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:50","end":"07:30","startHours":5.832580414719822,"endHours":7.504038167254551,"quality":"inauspicious"},{"name":"Udveg","start":"07:30","end":"09:11","startHours":7.504038167254551,"endHours":9.175495919789281,"quality":"inauspicious"},{"name":"Chala","start":"09:11","end":"10:51","startHours":9.175495919789281,"endHours":10.846953672324009,"quality":"neutral"},{"name":"Labha","start":"10:51","end":"12:31","startHours":10.846953672324009,"endHours":12.518411424858737,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"14:11","startHours":12.518411424858737,"endHours":14.189869177393465,"quality":"auspicious"},{"name":"Kāla","start":"14:11","end":"15:52","startHours":14.189869177393465,"endHours":15.861326929928197,"quality":"inauspicious"},{"name":"Śubha","start":"15:52","end":"17:32","startHours":15.861326929928197,"endHours":17.532784682462925,"quality":"auspicious"},{"name":"Roga","start":"17:32","end":"19:12","startHours":17.532784682462925,"endHours":19.204242434997653,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:12","end":"20:32","startHours":19.204242434997653,"endHours":20.532784682462925,"quality":"inauspicious"},{"name":"Śubha","start":"20:32","end":"21:52","startHours":20.532784682462925,"endHours":21.861326929928197,"quality":"auspicious"},{"name":"Roga","start":"21:52","end":"23:11","startHours":21.861326929928197,"endHours":23.189869177393465,"quality":"inauspicious"},{"name":"Udveg","start":"23:11","end":"00:31","startHours":23.189869177393465,"endHours":24.518411424858737,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"01:51","startHours":24.518411424858737,"endHours":25.84695367232401,"quality":"neutral"},{"name":"Labha","start":"01:51","end":"03:11","startHours":25.84695367232401,"endHours":27.175495919789277,"quality":"auspicious"},{"name":"Amṛta","start":"03:11","end":"04:30","startHours":27.175495919789277,"endHours":28.50403816725455,"quality":"auspicious"},{"name":"Kāla","start":"04:30","end":"05:50","startHours":28.50403816725455,"endHours":29.83258041471982,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:50","end":"06:50","startHours":5.832580414719822,"endHours":6.832580414719822,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:50","end":"07:50","startHours":6.832580414719822,"endHours":7.832580414719822,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:50","end":"08:50","startHours":7.832580414719822,"endHours":8.832580414719821,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:50","end":"09:50","startHours":8.832580414719821,"endHours":9.832580414719821,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:50","end":"10:50","startHours":9.832580414719821,"endHours":10.832580414719821,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:50","end":"11:50","startHours":10.832580414719821,"endHours":11.832580414719821,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:50","end":"12:50","startHours":11.832580414719821,"endHours":12.832580414719821,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:50","end":"13:50","startHours":12.832580414719821,"endHours":13.832580414719821,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:50","end":"14:50","startHours":13.832580414719821,"endHours":14.832580414719821,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:50","end":"15:50","startHours":14.832580414719821,"endHours":15.832580414719821,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:50","end":"16:50","startHours":15.832580414719821,"endHours":16.83258041471982,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:50","end":"17:50","startHours":16.83258041471982,"endHours":17.83258041471982,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:50","end":"18:50","startHours":17.83258041471982,"endHours":18.83258041471982,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:50","end":"19:50","startHours":18.83258041471982,"endHours":19.83258041471982,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:50","end":"20:50","startHours":19.83258041471982,"endHours":20.83258041471982,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:50","end":"21:50","startHours":20.83258041471982,"endHours":21.83258041471982,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:50","end":"22:50","startHours":21.83258041471982,"endHours":22.83258041471982,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:50","end":"23:50","startHours":22.83258041471982,"endHours":23.83258041471982,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:50","end":"00:50","startHours":23.83258041471982,"endHours":24.83258041471982,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:50","end":"01:50","startHours":24.83258041471982,"endHours":25.83258041471982,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:50","end":"02:50","startHours":25.83258041471982,"endHours":26.83258041471982,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:50","end":"03:50","startHours":26.83258041471982,"endHours":27.83258041471982,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:50","end":"04:50","startHours":27.83258041471982,"endHours":28.83258041471982,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:50","end":"05:50","startHours":28.83258041471982,"endHours":29.83258041471982,"planetary_lord":"Saturn"}],"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":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Utpāta","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":-14.465598492391203,"eotMinutes":-14.546685491524224,"ayanamsa":23.8266}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"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 Caturdaśī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"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":[]},"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 10, 1998 CE · Perth, Australia · Vidhyamitra","description":"February 10, 1998 CE for Perth, Australia: Śukla Caturdaśī, sūryodaya 05:50, sūryāsta 19:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1998-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1998-02-10","sa":"https://sa.vidhyamitra.com/city/perth/1998-02-10","hi":"https://hi.vidhyamitra.com/city/perth/1998-02-10","x-default":"https://vidhyamitra.com/city/perth/1998-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:50:16.652Z","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":"2026-05-31T18:50:16.652Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:50:16.652Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}