{"id":"vidhyamitra:city-day:perth:1998-12-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1998-12-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-12-05","date_display":"December 5, 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":12,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451152.770833,"kali_year":5100,"ahargana":1862687.2708,"sun":{"sidereal_longitude":228.3837,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":67.7043,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.3206,"elapsed_within_tithi_degrees":7.3206},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.7043,"elapsed_within_degrees":1.0376},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.088},"karana":{"half_tithi_index":33,"name":"Gara"},"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":1998,"month":12,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451152.770833,"ahargana":1862687.2708,"kali_year":5100,"ayanamsa_lahiri":23.838,"grahas":{"sun":{"sidereal_longitude":228.85209599999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":68.247996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false,"latitude":-3.8218},"mars":{"sidereal_longitude":160.39879599999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":221.026796,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":325.09939599999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":237.745496,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":3.408395999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":125.8645,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":305.8645,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"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":12,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451152.770833,"kali_year":5100,"ahargana":1862687.2708,"sun":{"sidereal_longitude":228.3837,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":67.7043,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":199.3206,"elapsed_within_tithi_degrees":7.3206},"nakshatra":{"number":6,"name":"Ārdrā","pada":1,"moon_longitude":67.7043,"elapsed_within_degrees":1.0376},"yoga":{"number":23,"name":"Śubha","sum_longitude":296.088},"karana":{"half_tithi_index":33,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.822,"elongation":160.679},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.822,"opposition_distance":19.321}},"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":"05:04","sunsetLocal":"19:12","solarNoonLocal":"12:08","dayLengthHours":14.124399720651315,"dayLengthDisplay":"14 Hours 07 Mins 28 Secs","nightLengthDisplay":"9 Hours 52 Mins 32 Secs","moonriseLocal":"20:25","moonsetLocal":"06:26","rahuKala":{"name":"Rāhu Kāla","start":"08:36","end":"10:22","startHours":8.602277014169774,"endHours":10.367826979251188,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:40","startHours":13.898926909414016,"endHours":15.664476874495431,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:04","end":"06:50","startHours":5.071177084006945,"endHours":6.83672704908836,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:22","end":"08:50","startHours":8.36687035215892,"endHours":8.837683676180628,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:40","end":"06:02","startHours":5.659693739034083,"endHours":6.036344398251451,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:36","startHours":11.662563620310891,"endHours":12.604190268354312,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:11","end":"04:08","startHours":3.187923787920103,"endHours":4.129550435963524,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:54","end":"05:04","startHours":3.8941437739526688,"endHours":5.071177084006945,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:26","startHours":14.487443564441154,"endHours":15.429070212484575,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:00","end":"19:24","startHours":18.99557680465826,"endHours":19.39557680465826,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:12","end":"19:47","startHours":19.19557680465826,"endHours":19.784093459685398,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:57","end":"20:42","startHours":18.94557680465826,"endHours":20.69557680465826,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:36","startHours":23.66256362031089,"endHours":24.604190268354316,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:04","end":"06:50","startHours":5.071177084006945,"endHours":6.83672704908836,"quality":"inauspicious"},{"name":"Śubha","start":"06:50","end":"08:36","startHours":6.83672704908836,"endHours":8.602277014169774,"quality":"auspicious"},{"name":"Roga","start":"08:36","end":"10:22","startHours":8.602277014169774,"endHours":10.367826979251188,"quality":"inauspicious"},{"name":"Udveg","start":"10:22","end":"12:08","startHours":10.367826979251188,"endHours":12.133376944332603,"quality":"inauspicious"},{"name":"Chala","start":"12:08","end":"13:54","startHours":12.133376944332603,"endHours":13.898926909414016,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:40","startHours":13.898926909414016,"endHours":15.664476874495431,"quality":"auspicious"},{"name":"Amṛta","start":"15:40","end":"17:26","startHours":15.664476874495431,"endHours":17.430026839576847,"quality":"auspicious"},{"name":"Kāla","start":"17:26","end":"19:12","startHours":17.430026839576847,"endHours":19.19557680465826,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:12","end":"20:26","startHours":19.19557680465826,"endHours":20.430026839576843,"quality":"auspicious"},{"name":"Amṛta","start":"20:26","end":"21:40","startHours":20.430026839576843,"endHours":21.66447687449543,"quality":"auspicious"},{"name":"Kāla","start":"21:40","end":"22:54","startHours":21.66447687449543,"endHours":22.898926909414016,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:08","startHours":22.898926909414016,"endHours":24.133376944332603,"quality":"auspicious"},{"name":"Roga","start":"00:08","end":"01:22","startHours":24.133376944332603,"endHours":25.367826979251188,"quality":"inauspicious"},{"name":"Udveg","start":"01:22","end":"02:36","startHours":25.367826979251188,"endHours":26.602277014169772,"quality":"inauspicious"},{"name":"Chala","start":"02:36","end":"03:50","startHours":26.602277014169772,"endHours":27.83672704908836,"quality":"neutral"},{"name":"Labha","start":"03:50","end":"05:04","startHours":27.83672704908836,"endHours":29.071177084006944,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:04","end":"06:04","startHours":5.071177084006945,"endHours":6.071177084006945,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:04","end":"07:04","startHours":6.071177084006945,"endHours":7.071177084006945,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:04","end":"08:04","startHours":7.071177084006945,"endHours":8.071177084006944,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:04","end":"09:04","startHours":8.071177084006944,"endHours":9.071177084006944,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:04","end":"10:04","startHours":9.071177084006944,"endHours":10.071177084006944,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:04","end":"11:04","startHours":10.071177084006944,"endHours":11.071177084006944,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:04","end":"12:04","startHours":11.071177084006944,"endHours":12.071177084006944,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:04","end":"13:04","startHours":12.071177084006944,"endHours":13.071177084006944,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:04","end":"14:04","startHours":13.071177084006944,"endHours":14.071177084006944,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:04","end":"15:04","startHours":14.071177084006944,"endHours":15.071177084006944,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:04","end":"16:04","startHours":15.071177084006944,"endHours":16.071177084006944,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:04","end":"17:04","startHours":16.071177084006944,"endHours":17.071177084006944,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:04","end":"18:04","startHours":17.071177084006944,"endHours":18.071177084006944,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:04","end":"19:04","startHours":18.071177084006944,"endHours":19.071177084006944,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:04","end":"20:04","startHours":19.071177084006944,"endHours":20.071177084006944,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:04","end":"21:04","startHours":20.071177084006944,"endHours":21.071177084006944,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:04","end":"22:04","startHours":21.071177084006944,"endHours":22.071177084006944,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:04","end":"23:04","startHours":22.071177084006944,"endHours":23.071177084006944,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:04","end":"00:04","startHours":23.071177084006944,"endHours":24.071177084006944,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:04","end":"01:04","startHours":24.071177084006944,"endHours":25.071177084006944,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:04","end":"02:04","startHours":25.071177084006944,"endHours":26.071177084006944,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:04","end":"03:04","startHours":26.071177084006944,"endHours":27.071177084006944,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:04","end":"04:04","startHours":27.071177084006944,"endHours":28.071177084006944,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:04","end":"05:04","startHours":28.071177084006944,"endHours":29.071177084006944,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-22.31627251760123,"eotMinutes":8.555383340043877,"ayanamsa":23.838}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Dvitīyā · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[],"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 December 5, 1998 CE · Perth, Australia · Vidhyamitra","description":"December 5, 1998 CE for Perth, Australia: Kṛṣṇa Dvitīyā, sūryodaya 05:04, sūryāsta 19:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1998-12-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1998-12-05","sa":"https://sa.vidhyamitra.com/city/perth/1998-12-05","hi":"https://hi.vidhyamitra.com/city/perth/1998-12-05","x-default":"https://vidhyamitra.com/city/perth/1998-12-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:26:40.649Z","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":"2026-05-31T17:26:40.649Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:26:40.649Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}