{"id":"vidhyamitra:city-day:melbourne:1981-09-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/melbourne/1981-09-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-09-04","date_display":"September 4, 1981 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":1981,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444851.770833,"kali_year":5083,"ahargana":1856386.2708,"sun":{"sidereal_longitude":137.1803,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":202.132,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":64.9517,"elapsed_within_tithi_degrees":4.9517},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":202.132,"elapsed_within_degrees":2.132},"yoga":{"number":26,"name":"Indra","sum_longitude":339.3123},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":1981,"month":9,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444851.770833,"ahargana":1856386.2708,"kali_year":5083,"ayanamsa_lahiri":23.597,"grahas":{"sun":{"sidereal_longitude":137.83374100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":200.35144100000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":4.3946},"mars":{"sidereal_longitude":97.903141,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":158.26404100000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":168.995541,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":176.19724100000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":165.08684100000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":99.7218,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":279.7218,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":1981,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444851.770833,"kali_year":5083,"ahargana":1856386.2708,"sun":{"sidereal_longitude":137.1803,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":202.132,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":64.9517,"elapsed_within_tithi_degrees":4.9517},"nakshatra":{"number":16,"name":"Viśākhā","pada":1,"moon_longitude":202.132,"elapsed_within_degrees":2.132},"yoga":{"number":26,"name":"Indra","sum_longitude":339.3123},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.395,"elongation":64.952},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.395,"opposition_distance":115.048}},"eclipse_window_40days":[]},"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"sunriseLocal":"06:37","sunsetLocal":"18:00","solarNoonLocal":"12:19","dayLengthHours":11.384048271692867,"dayLengthDisplay":"11 Hours 23 Mins 03 Secs","nightLengthDisplay":"12 Hours 36 Mins 57 Secs","moonriseLocal":"09:34","moonsetLocal":"23:23","rahuKala":{"name":"Rāhu Kāla","start":"10:53","end":"12:19","startHours":10.887823364417459,"endHours":12.310829398379067,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:09","end":"16:35","startHours":15.156841466302284,"endHours":16.579847500263895,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:03","end":"09:28","startHours":8.041811296494242,"endHours":9.464817330455851,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:39","startHours":9.275083192594302,"endHours":9.654551468317399,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:06","end":"07:24","startHours":7.093140607186504,"endHours":7.396715227764981,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:41","startHours":11.931361122655971,"endHours":12.690297674102162,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:06","end":"05:52","startHours":5.1009321596402515,"endHours":5.859868711086443,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:40","end":"06:37","startHours":5.670134573224895,"endHours":6.618805262532634,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"14:58","startHours":14.208170776994546,"endHours":14.967107328440736,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.802853534225502,"endHours":18.2028535342255,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:29","startHours":18.0028535342255,"endHours":18.47718887887937,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.7528535342255,"endHours":19.5028535342255,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:41","startHours":23.93136112265597,"endHours":24.690297674102162,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:37","end":"08:03","startHours":6.618805262532634,"endHours":8.041811296494242,"quality":"neutral"},{"name":"Labha","start":"08:03","end":"09:28","startHours":8.041811296494242,"endHours":9.464817330455851,"quality":"auspicious"},{"name":"Amṛta","start":"09:28","end":"10:53","startHours":9.464817330455851,"endHours":10.887823364417459,"quality":"auspicious"},{"name":"Kāla","start":"10:53","end":"12:19","startHours":10.887823364417459,"endHours":12.310829398379067,"quality":"inauspicious"},{"name":"Śubha","start":"12:19","end":"13:44","startHours":12.310829398379067,"endHours":13.733835432340676,"quality":"auspicious"},{"name":"Roga","start":"13:44","end":"15:09","startHours":13.733835432340676,"endHours":15.156841466302284,"quality":"inauspicious"},{"name":"Udveg","start":"15:09","end":"16:35","startHours":15.156841466302284,"endHours":16.579847500263895,"quality":"inauspicious"},{"name":"Chala","start":"16:35","end":"18:00","startHours":16.579847500263895,"endHours":18.0028535342255,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:00","end":"19:35","startHours":18.0028535342255,"endHours":19.57984750026389,"quality":"inauspicious"},{"name":"Udveg","start":"19:35","end":"21:09","startHours":19.57984750026389,"endHours":21.156841466302286,"quality":"inauspicious"},{"name":"Chala","start":"21:09","end":"22:44","startHours":21.156841466302286,"endHours":22.733835432340676,"quality":"neutral"},{"name":"Labha","start":"22:44","end":"00:19","startHours":22.733835432340676,"endHours":24.310829398379067,"quality":"auspicious"},{"name":"Amṛta","start":"00:19","end":"01:53","startHours":24.310829398379067,"endHours":25.887823364417457,"quality":"auspicious"},{"name":"Kāla","start":"01:53","end":"03:28","startHours":25.887823364417457,"endHours":27.46481733045585,"quality":"inauspicious"},{"name":"Śubha","start":"03:28","end":"05:03","startHours":27.46481733045585,"endHours":29.04181129649424,"quality":"auspicious"},{"name":"Roga","start":"05:03","end":"06:37","startHours":29.04181129649424,"endHours":30.618805262532632,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:37","end":"07:37","startHours":6.618805262532634,"endHours":7.618805262532634,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:37","end":"08:37","startHours":7.618805262532634,"endHours":8.618805262532634,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:37","end":"09:37","startHours":8.618805262532634,"endHours":9.618805262532634,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:37","end":"10:37","startHours":9.618805262532634,"endHours":10.618805262532634,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:37","end":"11:37","startHours":10.618805262532634,"endHours":11.618805262532634,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:37","end":"12:37","startHours":11.618805262532634,"endHours":12.618805262532634,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:37","end":"13:37","startHours":12.618805262532634,"endHours":13.618805262532634,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:37","end":"14:37","startHours":13.618805262532634,"endHours":14.618805262532634,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:37","end":"15:37","startHours":14.618805262532634,"endHours":15.618805262532634,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:37","end":"16:37","startHours":15.618805262532634,"endHours":16.618805262532632,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:37","end":"17:37","startHours":16.618805262532632,"endHours":17.618805262532632,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:37","end":"18:37","startHours":17.618805262532632,"endHours":18.618805262532632,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:37","end":"19:37","startHours":18.618805262532632,"endHours":19.618805262532632,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:37","end":"20:37","startHours":19.618805262532632,"endHours":20.618805262532632,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:37","end":"21:37","startHours":20.618805262532632,"endHours":21.618805262532632,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:37","end":"22:37","startHours":21.618805262532632,"endHours":22.618805262532632,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:37","end":"23:37","startHours":22.618805262532632,"endHours":23.618805262532632,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:37","end":"00:37","startHours":23.618805262532632,"endHours":24.618805262532632,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:37","end":"01:37","startHours":24.618805262532632,"endHours":25.618805262532632,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:37","end":"02:37","startHours":25.618805262532632,"endHours":26.618805262532632,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:37","end":"03:37","startHours":26.618805262532632,"endHours":27.618805262532632,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:37","end":"04:37","startHours":27.618805262532632,"endHours":28.618805262532632,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:37","end":"05:37","startHours":28.618805262532632,"endHours":29.618805262532632,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:37","end":"06:37","startHours":29.618805262532632,"endHours":30.618805262532632,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"North","rahuVasa":"South-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.2765249955190106,"eotMinutes":1.4978360972560227,"ayanamsa":23.597}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Ṣaṣṭhī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"subrahmanya-shashthi","name":"Subrahmaṇya Ṣaṣṭhī","name_sanskrit":"सुब्रह्मण्य षष्ठी","tradition":"Shaiva","associated_deity":"Kārttikeya","significance":"Worship of Kārttikeya as Subrahmaṇya.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4}],"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":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"melbourne"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 4, 1981 CE · Melbourne, Australia · Vidhyamitra","description":"September 4, 1981 CE for Melbourne, Australia: Śukla Ṣaṣṭhī, sūryodaya 06:37, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/melbourne/1981-09-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/melbourne/1981-09-04","sa":"https://sa.vidhyamitra.com/city/melbourne/1981-09-04","hi":"https://hi.vidhyamitra.com/city/melbourne/1981-09-04","x-default":"https://vidhyamitra.com/city/melbourne/1981-09-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T21:36:47.585Z","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":"2026-06-01T21:36:47.585Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T21:36:47.585Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}