{"id":"vidhyamitra:city-day:perth:2004-02-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2004-02-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2004-02-20","date_display":"February 20, 2004 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":2004,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453055.770833,"kali_year":5105,"ahargana":1864590.2708,"sun":{"sidereal_longitude":306.9344,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":304.1596,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":357.2252,"elapsed_within_tithi_degrees":9.2252},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.1596,"elapsed_within_degrees":10.8263},"yoga":{"number":19,"name":"Parigha","sum_longitude":251.094},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2004,"month":2,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453055.770833,"ahargana":1864590.2708,"kali_year":5105,"ayanamsa_lahiri":23.9108,"grahas":{"sun":{"sidereal_longitude":306.82508800000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":302.219388,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false,"latitude":-4.4429},"mars":{"sidereal_longitude":16.589887999999974,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":296.574288,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":141.81208800000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":349.325788,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":72.500588,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":25.0344,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":205.0344,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","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":2004,"month":2,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453055.770833,"kali_year":5105,"ahargana":1864590.2708,"sun":{"sidereal_longitude":306.9344,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":304.1596,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":357.2252,"elapsed_within_tithi_degrees":9.2252},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.1596,"elapsed_within_degrees":10.8263},"yoga":{"number":19,"name":"Parigha","sum_longitude":251.094},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.443,"elongation":2.775},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.443,"opposition_distance":177.225}},"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":"05:58","sunsetLocal":"19:03","solarNoonLocal":"12:31","dayLengthHours":13.081405920137371,"dayLengthDisplay":"13 Hours 04 Mins 53 Secs","nightLengthDisplay":"10 Hours 55 Mins 07 Secs","moonriseLocal":"05:37","moonsetLocal":"18:48","rahuKala":{"name":"Rāhu Kāla","start":"10:53","end":"12:31","startHours":10.878846677394865,"endHours":12.514022417412036,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:47","end":"17:25","startHours":15.784373897446379,"endHours":17.41954963746355,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:37","end":"09:15","startHours":7.608495197360523,"endHours":9.243670937377694,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:28","startHours":9.025647505375405,"endHours":9.461694369379984,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:52","startHours":6.518378037349075,"endHours":6.867215528552738,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.077975553407457,"endHours":12.950069281416615,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:06","startHours":4.229132001325036,"endHours":5.101225729334193,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:53","end":"05:58","startHours":4.883202297331904,"endHours":5.973319457343352,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:42","end":"15:34","startHours":14.694256737434934,"endHours":15.566350465444092,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:51","end":"19:15","startHours":18.854725377480722,"endHours":19.25472537748072,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:03","end":"19:36","startHours":19.05472537748072,"endHours":19.599783957486444,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:48","end":"20:33","startHours":18.80472537748072,"endHours":20.55472537748072,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.07797555340746,"endHours":24.950069281416614,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:58","end":"07:37","startHours":5.973319457343352,"endHours":7.608495197360523,"quality":"neutral"},{"name":"Labha","start":"07:37","end":"09:15","startHours":7.608495197360523,"endHours":9.243670937377694,"quality":"auspicious"},{"name":"Amṛta","start":"09:15","end":"10:53","startHours":9.243670937377694,"endHours":10.878846677394865,"quality":"auspicious"},{"name":"Kāla","start":"10:53","end":"12:31","startHours":10.878846677394865,"endHours":12.514022417412036,"quality":"inauspicious"},{"name":"Śubha","start":"12:31","end":"14:09","startHours":12.514022417412036,"endHours":14.149198157429208,"quality":"auspicious"},{"name":"Roga","start":"14:09","end":"15:47","startHours":14.149198157429208,"endHours":15.784373897446379,"quality":"inauspicious"},{"name":"Udveg","start":"15:47","end":"17:25","startHours":15.784373897446379,"endHours":17.41954963746355,"quality":"inauspicious"},{"name":"Chala","start":"17:25","end":"19:03","startHours":17.41954963746355,"endHours":19.05472537748072,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:03","end":"20:25","startHours":19.05472537748072,"endHours":20.41954963746355,"quality":"inauspicious"},{"name":"Udveg","start":"20:25","end":"21:47","startHours":20.41954963746355,"endHours":21.78437389744638,"quality":"inauspicious"},{"name":"Chala","start":"21:47","end":"23:09","startHours":21.78437389744638,"endHours":23.149198157429208,"quality":"neutral"},{"name":"Labha","start":"23:09","end":"00:31","startHours":23.149198157429208,"endHours":24.514022417412036,"quality":"auspicious"},{"name":"Amṛta","start":"00:31","end":"01:53","startHours":24.514022417412036,"endHours":25.878846677394865,"quality":"auspicious"},{"name":"Kāla","start":"01:53","end":"03:15","startHours":25.878846677394865,"endHours":27.243670937377694,"quality":"inauspicious"},{"name":"Śubha","start":"03:15","end":"04:37","startHours":27.243670937377694,"endHours":28.608495197360522,"quality":"auspicious"},{"name":"Roga","start":"04:37","end":"05:58","startHours":28.608495197360522,"endHours":29.97331945734335,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.973319457343352,"endHours":6.973319457343352,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.973319457343352,"endHours":7.973319457343352,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.973319457343352,"endHours":8.97331945734335,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.97331945734335,"endHours":9.97331945734335,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.97331945734335,"endHours":10.97331945734335,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.97331945734335,"endHours":11.97331945734335,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.97331945734335,"endHours":12.97331945734335,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.97331945734335,"endHours":13.97331945734335,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.97331945734335,"endHours":14.97331945734335,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.97331945734335,"endHours":15.97331945734335,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.97331945734335,"endHours":16.97331945734335,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.97331945734335,"endHours":17.97331945734335,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.97331945734335,"endHours":18.97331945734335,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.97331945734335,"endHours":19.97331945734335,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.97331945734335,"endHours":20.97331945734335,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.97331945734335,"endHours":21.97331945734335,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.97331945734335,"endHours":22.97331945734335,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.97331945734335,"endHours":23.97331945734335,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.97331945734335,"endHours":24.97331945734335,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.97331945734335,"endHours":25.97331945734335,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.97331945734335,"endHours":26.97331945734335,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.97331945734335,"endHours":27.97331945734335,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.97331945734335,"endHours":28.97331945734335,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.97331945734335,"endHours":29.97331945734335,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.211193740035633,"eotMinutes":-14.28334504472219,"ayanamsa":23.9108}},"calendars":{"vikram_samvat":2061,"vikram_samvatsara":"Hemalambī","saka_samvat":1926,"saka_samvatsara":"Tāraṇa","bengali_samvat":1411,"malayalam_era":1180,"nanakshahi_year":535,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","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":"Phālguna Kṛṣṇa Amāvasyā · Vikram 2061 Hemalambī · Śaka 1926 Tāraṇa"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 February 20, 2004 CE · Perth, Australia · Vidhyamitra","description":"February 20, 2004 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:58, sūryāsta 19:03.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2004-02-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2004-02-20","sa":"https://sa.vidhyamitra.com/city/perth/2004-02-20","hi":"https://hi.vidhyamitra.com/city/perth/2004-02-20","x-default":"https://vidhyamitra.com/city/perth/2004-02-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T09:16:23.188Z","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":"2026-05-31T09:16:23.188Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T09:16:23.188Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}