{"id":"vidhyamitra:city-day:perth:1998-05-23:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1998-05-23","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-05-23","date_display":"May 23, 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":5,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450956.770833,"kali_year":5100,"ahargana":1862491.2708,"sun":{"sidereal_longitude":37.8374,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":1.6826,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.8452,"elapsed_within_tithi_degrees":11.8452},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":1.6826,"elapsed_within_degrees":1.6826},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.52},"karana":{"half_tithi_index":53,"name":"Taitila"},"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":5,"day":23,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450956.770833,"ahargana":1862491.2708,"kali_year":5100,"ayanamsa_lahiri":23.8305,"grahas":{"sun":{"sidereal_longitude":37.899085000000014,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":359.298985,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false,"latitude":-3.2043},"mars":{"sidereal_longitude":35.43428499999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":18.477385000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":329.5482850000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":358.174685,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":4.328485000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":136.2495,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":316.2495,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":1998,"month":5,"day":23,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450956.770833,"kali_year":5100,"ahargana":1862491.2708,"sun":{"sidereal_longitude":37.8374,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":1.6826,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.8452,"elapsed_within_tithi_degrees":11.8452},"nakshatra":{"number":1,"name":"Aśvinī","pada":1,"moon_longitude":1.6826,"elapsed_within_degrees":1.6826},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":39.52},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.204,"elongation":36.155},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.204,"opposition_distance":143.845}},"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":"07:03","sunsetLocal":"17:24","solarNoonLocal":"12:13","dayLengthHours":10.344976189991124,"dayLengthDisplay":"10 Hours 20 Mins 42 Secs","nightLengthDisplay":"13 Hours 39 Mins 18 Secs","moonriseLocal":"03:59","moonsetLocal":"15:19","rahuKala":{"name":"Rāhu Kāla","start":"09:38","end":"10:56","startHours":9.633131163453946,"endHours":10.926253187202837,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:31","end":"14:48","startHours":13.512497234700618,"endHours":14.805619258449509,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:03","end":"08:20","startHours":7.0468871159561655,"endHours":8.340009139705057,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:48","startHours":9.46071489362076,"endHours":9.805547433287131,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:45","startHours":7.477927790539129,"endHours":7.753793822272225,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:34","startHours":11.874542671285356,"endHours":12.564207750618097,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:40","end":"06:21","startHours":5.6675569572906825,"endHours":6.3572220366234236,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:11","end":"07:03","startHours":6.184805766790238,"endHours":7.0468871159561655,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:57","end":"14:38","startHours":13.943537909283581,"endHours":14.633202988616322,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:12","end":"17:36","startHours":17.19186330594729,"endHours":17.59186330594729,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:24","end":"17:49","startHours":17.39186330594729,"endHours":17.822903980530253,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:09","end":"18:54","startHours":17.14186330594729,"endHours":18.89186330594729,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:34","startHours":23.874542671285354,"endHours":24.564207750618095,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:03","end":"08:20","startHours":7.0468871159561655,"endHours":8.340009139705057,"quality":"inauspicious"},{"name":"Śubha","start":"08:20","end":"09:38","startHours":8.340009139705057,"endHours":9.633131163453946,"quality":"auspicious"},{"name":"Roga","start":"09:38","end":"10:56","startHours":9.633131163453946,"endHours":10.926253187202837,"quality":"inauspicious"},{"name":"Udveg","start":"10:56","end":"12:13","startHours":10.926253187202837,"endHours":12.219375210951728,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:31","startHours":12.219375210951728,"endHours":13.512497234700618,"quality":"neutral"},{"name":"Labha","start":"13:31","end":"14:48","startHours":13.512497234700618,"endHours":14.805619258449509,"quality":"auspicious"},{"name":"Amṛta","start":"14:48","end":"16:06","startHours":14.805619258449509,"endHours":16.098741282198397,"quality":"auspicious"},{"name":"Kāla","start":"16:06","end":"17:24","startHours":16.098741282198397,"endHours":17.39186330594729,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:24","end":"19:06","startHours":17.39186330594729,"endHours":19.0987412821984,"quality":"auspicious"},{"name":"Amṛta","start":"19:06","end":"20:48","startHours":19.0987412821984,"endHours":20.805619258449507,"quality":"auspicious"},{"name":"Kāla","start":"20:48","end":"22:31","startHours":20.805619258449507,"endHours":22.512497234700618,"quality":"inauspicious"},{"name":"Śubha","start":"22:31","end":"00:13","startHours":22.512497234700618,"endHours":24.21937521095173,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:56","startHours":24.21937521095173,"endHours":25.92625318720284,"quality":"inauspicious"},{"name":"Udveg","start":"01:56","end":"03:38","startHours":25.92625318720284,"endHours":27.633131163453946,"quality":"inauspicious"},{"name":"Chala","start":"03:38","end":"05:20","startHours":27.633131163453946,"endHours":29.340009139705057,"quality":"neutral"},{"name":"Labha","start":"05:20","end":"07:03","startHours":29.340009139705057,"endHours":31.046887115956167,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:03","end":"08:03","startHours":7.0468871159561655,"endHours":8.046887115956165,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:03","end":"09:03","startHours":8.046887115956165,"endHours":9.046887115956165,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:03","end":"10:03","startHours":9.046887115956165,"endHours":10.046887115956165,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:03","end":"11:03","startHours":10.046887115956165,"endHours":11.046887115956165,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:03","end":"12:03","startHours":11.046887115956165,"endHours":12.046887115956165,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:03","end":"13:03","startHours":12.046887115956165,"endHours":13.046887115956165,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:03","end":"14:03","startHours":13.046887115956165,"endHours":14.046887115956165,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:03","end":"15:03","startHours":14.046887115956165,"endHours":15.046887115956165,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:03","end":"16:03","startHours":15.046887115956165,"endHours":16.046887115956167,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:03","end":"17:03","startHours":16.046887115956167,"endHours":17.046887115956167,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:03","end":"18:03","startHours":17.046887115956167,"endHours":18.046887115956167,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:03","end":"19:03","startHours":18.046887115956167,"endHours":19.046887115956167,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:03","end":"20:03","startHours":19.046887115956167,"endHours":20.046887115956167,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:03","end":"21:03","startHours":20.046887115956167,"endHours":21.046887115956167,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:03","end":"22:03","startHours":21.046887115956167,"endHours":22.046887115956167,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:03","end":"23:03","startHours":22.046887115956167,"endHours":23.046887115956167,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:03","end":"00:03","startHours":23.046887115956167,"endHours":24.046887115956167,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:03","end":"01:03","startHours":24.046887115956167,"endHours":25.046887115956167,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:03","end":"02:03","startHours":25.046887115956167,"endHours":26.046887115956167,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:03","end":"03:03","startHours":26.046887115956167,"endHours":27.046887115956167,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:03","end":"04:03","startHours":27.046887115956167,"endHours":28.046887115956167,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:03","end":"05:03","startHours":28.046887115956167,"endHours":29.046887115956167,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:03","end":"06:03","startHours":29.046887115956167,"endHours":30.046887115956167,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:03","end":"07:03","startHours":30.046887115956167,"endHours":31.046887115956167,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.50516040960793,"eotMinutes":3.395487342896394,"ayanamsa":23.8305}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Dvādaśī · 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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"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 May 23, 1998 CE · Perth, Australia · Vidhyamitra","description":"May 23, 1998 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 07:03, sūryāsta 17:24.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1998-05-23","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1998-05-23","sa":"https://sa.vidhyamitra.com/city/perth/1998-05-23","hi":"https://hi.vidhyamitra.com/city/perth/1998-05-23","x-default":"https://vidhyamitra.com/city/perth/1998-05-23"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:11:33.733Z","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":"2026-05-31T06:11:33.733Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:11:33.733Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}