{"id":"vidhyamitra:city-day:perth:2015-09-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2015-09-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-09-04","date_display":"September 4, 2015 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":2015,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457269.770833,"kali_year":5117,"ahargana":1868804.2708,"sun":{"sidereal_longitude":136.4101,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":25.8801,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.47,"elapsed_within_tithi_degrees":9.47},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":25.8801,"elapsed_within_degrees":12.5468},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.2902},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"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":2015,"month":9,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457269.770833,"ahargana":1868804.2708,"kali_year":5117,"ayanamsa_lahiri":24.072,"grahas":{"sun":{"sidereal_longitude":137.14268200000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":29.672482000000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":-3.1313},"mars":{"sidereal_longitude":112.46318200000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":164.029182,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":130.29598199999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":110.08798200000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":214.84678200000008,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":161.7564,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":341.7564,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2015,"month":9,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457269.770833,"kali_year":5117,"ahargana":1868804.2708,"sun":{"sidereal_longitude":136.4101,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":25.8801,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":249.47,"elapsed_within_tithi_degrees":9.47},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4,"moon_longitude":25.8801,"elapsed_within_degrees":12.5468},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":162.2902},"karana":{"half_tithi_index":41,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.131,"elongation":110.53},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.131,"opposition_distance":69.47}},"eclipse_window_40days":[{"offset_days":9,"type":"solar","occurs":true,"moon_latitude":-1.372,"elongation":1.608}]},"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":"06:30","sunsetLocal":"18:01","solarNoonLocal":"12:15","dayLengthHours":11.516358760160823,"dayLengthDisplay":"11 Hours 30 Mins 59 Secs","nightLengthDisplay":"12 Hours 29 Mins 01 Secs","moonriseLocal":"23:51","moonsetLocal":"10:19","rahuKala":{"name":"Rāhu Kāla","start":"10:49","end":"12:15","startHours":10.811457886692295,"endHours":12.251002731712397,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:08","end":"16:34","startHours":15.130092421752604,"endHours":16.569637266772705,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:56","end":"09:22","startHours":7.932368196652089,"endHours":9.371913041672192,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:11","end":"09:34","startHours":9.179973729002846,"endHours":9.563852354341538,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:17","startHours":6.972671633305354,"endHours":7.279774533576309,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:38","startHours":11.867124106373705,"endHours":12.634881357051093,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:57","end":"05:44","startHours":4.95730885027721,"endHours":5.725066100954598,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:32","end":"06:30","startHours":5.533126788285251,"endHours":6.492823351631986,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"14:56","startHours":14.170395858405868,"endHours":14.938153109083256,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.80918211179281,"endHours":18.20918211179281,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:29","startHours":18.00918211179281,"endHours":18.489030393466177,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.75918211179281,"endHours":19.50918211179281,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:38","startHours":23.8671241063737,"endHours":24.634881357051093,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:30","end":"07:56","startHours":6.492823351631986,"endHours":7.932368196652089,"quality":"neutral"},{"name":"Labha","start":"07:56","end":"09:22","startHours":7.932368196652089,"endHours":9.371913041672192,"quality":"auspicious"},{"name":"Amṛta","start":"09:22","end":"10:49","startHours":9.371913041672192,"endHours":10.811457886692295,"quality":"auspicious"},{"name":"Kāla","start":"10:49","end":"12:15","startHours":10.811457886692295,"endHours":12.251002731712397,"quality":"inauspicious"},{"name":"Śubha","start":"12:15","end":"13:41","startHours":12.251002731712397,"endHours":13.690547576732502,"quality":"auspicious"},{"name":"Roga","start":"13:41","end":"15:08","startHours":13.690547576732502,"endHours":15.130092421752604,"quality":"inauspicious"},{"name":"Udveg","start":"15:08","end":"16:34","startHours":15.130092421752604,"endHours":16.569637266772705,"quality":"inauspicious"},{"name":"Chala","start":"16:34","end":"18:01","startHours":16.569637266772705,"endHours":18.00918211179281,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:01","end":"19:34","startHours":18.00918211179281,"endHours":19.56963726677271,"quality":"inauspicious"},{"name":"Udveg","start":"19:34","end":"21:08","startHours":19.56963726677271,"endHours":21.130092421752604,"quality":"inauspicious"},{"name":"Chala","start":"21:08","end":"22:41","startHours":21.130092421752604,"endHours":22.690547576732502,"quality":"neutral"},{"name":"Labha","start":"22:41","end":"00:15","startHours":22.690547576732502,"endHours":24.251002731712397,"quality":"auspicious"},{"name":"Amṛta","start":"00:15","end":"01:49","startHours":24.251002731712397,"endHours":25.811457886692295,"quality":"auspicious"},{"name":"Kāla","start":"01:49","end":"03:22","startHours":25.811457886692295,"endHours":27.371913041672194,"quality":"inauspicious"},{"name":"Śubha","start":"03:22","end":"04:56","startHours":27.371913041672194,"endHours":28.932368196652092,"quality":"auspicious"},{"name":"Roga","start":"04:56","end":"06:30","startHours":28.932368196652092,"endHours":30.492823351631987,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.492823351631986,"endHours":7.492823351631986,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.492823351631986,"endHours":8.492823351631987,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.492823351631987,"endHours":9.492823351631987,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.492823351631987,"endHours":10.492823351631987,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.492823351631987,"endHours":11.492823351631987,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.492823351631987,"endHours":12.492823351631987,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.492823351631987,"endHours":13.492823351631987,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.492823351631987,"endHours":14.492823351631987,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.492823351631987,"endHours":15.492823351631987,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.492823351631987,"endHours":16.492823351631987,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.492823351631987,"endHours":17.492823351631987,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.492823351631987,"endHours":18.492823351631987,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.492823351631987,"endHours":19.492823351631987,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.492823351631987,"endHours":20.492823351631987,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.492823351631987,"endHours":21.492823351631987,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.492823351631987,"endHours":22.492823351631987,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.492823351631987,"endHours":23.492823351631987,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.492823351631987,"endHours":24.492823351631987,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.492823351631987,"endHours":25.492823351631987,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.492823351631987,"endHours":26.492823351631987,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.492823351631987,"endHours":27.492823351631987,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.492823351631987,"endHours":28.492823351631987,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.492823351631987,"endHours":29.492823351631987,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.492823351631987,"endHours":30.492823351631987,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":7.358601609244415,"eotMinutes":1.4978360972560227,"ayanamsa":24.072}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","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 Kṛṣṇa Ṣaṣṭhī · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"festivals":[{"id":"balarama-jayanti","name":"Balarāma Jayantī (Hala-Ṣaṣṭhī)","name_sanskrit":"बलराम जयन्ती","tradition":"Vaishnava","associated_deity":"Balarāma (Krishna's elder brother; ādi-śeṣa)","significance":"Birth of Bala-deva, Krishna's elder brother and Saṅkarṣaṇa.","vrata":true,"detection":{"tithi_number":21,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":3,"sources":["Bhāgavata 10.2-3"]}],"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":[]},"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 September 4, 2015 CE · Perth, Australia · Vidhyamitra","description":"September 4, 2015 CE for Perth, Australia: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:30, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2015-09-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2015-09-04","sa":"https://sa.vidhyamitra.com/city/perth/2015-09-04","hi":"https://hi.vidhyamitra.com/city/perth/2015-09-04","x-default":"https://vidhyamitra.com/city/perth/2015-09-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T06:04:06.794Z","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":"2026-06-01T06:04:06.794Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T06:04:06.794Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}