{"id":"vidhyamitra:city-day:perth:2006-04-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2006-04-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2006-04-13","date_display":"April 13, 2006 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2006,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453838.770833,"kali_year":5107,"ahargana":1865373.2708,"sun":{"sidereal_longitude":359.1643,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":171.7077,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.5433,"elapsed_within_tithi_degrees":4.5433},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.7077,"elapsed_within_degrees":11.7077},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":170.872},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2006,"month":4,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453838.770833,"ahargana":1865373.2708,"kali_year":5107,"ayanamsa_lahiri":23.9407,"grahas":{"sun":{"sidereal_longitude":359.041871,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":171.73147100000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false,"latitude":-0.6381},"mars":{"sidereal_longitude":65.404471,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":331.66717100000005,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":203.29897099999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":313.41127099999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":100.31907100000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":343.5473,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":163.5473,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2006,"month":4,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453838.770833,"kali_year":5107,"ahargana":1865373.2708,"sun":{"sidereal_longitude":359.1643,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":171.7077,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":172.5433,"elapsed_within_tithi_degrees":4.5433},"nakshatra":{"number":13,"name":"Hasta","pada":4,"moon_longitude":171.7077,"elapsed_within_degrees":11.7077},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":170.872},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.638,"elongation":172.543},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.638,"opposition_distance":7.457}},"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":"06:36","sunsetLocal":"17:59","solarNoonLocal":"12:17","dayLengthHours":11.382841974993942,"dayLengthDisplay":"11 Hours 22 Mins 58 Secs","nightLengthDisplay":"12 Hours 37 Mins 02 Secs","moonriseLocal":"17:30","moonsetLocal":"06:06","rahuKala":{"name":"Rāhu Kāla","start":"13:43","end":"15:08","startHours":13.711652094035982,"endHours":15.134507340910224,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:36","end":"08:01","startHours":6.597375859664767,"endHours":8.02023110653901,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:27","end":"10:52","startHours":9.443086353413253,"endHours":10.865941600287496,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:38","startHours":9.253372320496688,"endHours":9.63280038632982,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:04","end":"07:23","startHours":7.071660941956182,"endHours":7.375203394622687,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:40","startHours":11.909368781328606,"endHours":12.66822491299487,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:05","end":"05:50","startHours":5.079663596332241,"endHours":5.838519727998505,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:39","end":"06:36","startHours":5.648805695081939,"endHours":6.597375859664767,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:57","startHours":14.185937176327396,"endHours":14.94479330799366,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.78021783465871,"endHours":18.18021783465871,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:27","startHours":17.98021783465871,"endHours":18.454502916950123,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.73021783465871,"endHours":19.48021783465871,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:40","startHours":23.909368781328606,"endHours":24.66822491299487,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:36","end":"08:01","startHours":6.597375859664767,"endHours":8.02023110653901,"quality":"auspicious"},{"name":"Roga","start":"08:01","end":"09:27","startHours":8.02023110653901,"endHours":9.443086353413253,"quality":"inauspicious"},{"name":"Udveg","start":"09:27","end":"10:52","startHours":9.443086353413253,"endHours":10.865941600287496,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:17","startHours":10.865941600287496,"endHours":12.288796847161738,"quality":"neutral"},{"name":"Labha","start":"12:17","end":"13:43","startHours":12.288796847161738,"endHours":13.711652094035982,"quality":"auspicious"},{"name":"Amṛta","start":"13:43","end":"15:08","startHours":13.711652094035982,"endHours":15.134507340910224,"quality":"auspicious"},{"name":"Kāla","start":"15:08","end":"16:33","startHours":15.134507340910224,"endHours":16.557362587784468,"quality":"inauspicious"},{"name":"Śubha","start":"16:33","end":"17:59","startHours":16.557362587784468,"endHours":17.98021783465871,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:59","end":"19:33","startHours":17.98021783465871,"endHours":19.557362587784468,"quality":"auspicious"},{"name":"Kāla","start":"19:33","end":"21:08","startHours":19.557362587784468,"endHours":21.134507340910226,"quality":"inauspicious"},{"name":"Śubha","start":"21:08","end":"22:43","startHours":21.134507340910226,"endHours":22.711652094035983,"quality":"auspicious"},{"name":"Roga","start":"22:43","end":"00:17","startHours":22.711652094035983,"endHours":24.288796847161738,"quality":"inauspicious"},{"name":"Udveg","start":"00:17","end":"01:52","startHours":24.288796847161738,"endHours":25.865941600287496,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:27","startHours":25.865941600287496,"endHours":27.443086353413253,"quality":"neutral"},{"name":"Labha","start":"03:27","end":"05:01","startHours":27.443086353413253,"endHours":29.020231106539008,"quality":"auspicious"},{"name":"Amṛta","start":"05:01","end":"06:36","startHours":29.020231106539008,"endHours":30.597375859664766,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:36","end":"07:36","startHours":6.597375859664767,"endHours":7.597375859664767,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:36","end":"08:36","startHours":7.597375859664767,"endHours":8.597375859664767,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:36","end":"09:36","startHours":8.597375859664767,"endHours":9.597375859664767,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:36","end":"10:36","startHours":9.597375859664767,"endHours":10.597375859664767,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:36","end":"11:36","startHours":10.597375859664767,"endHours":11.597375859664767,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:36","end":"12:36","startHours":11.597375859664767,"endHours":12.597375859664767,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:36","end":"13:36","startHours":12.597375859664767,"endHours":13.597375859664767,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:36","end":"14:36","startHours":13.597375859664767,"endHours":14.597375859664767,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:36","end":"15:36","startHours":14.597375859664767,"endHours":15.597375859664767,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:36","end":"16:36","startHours":15.597375859664767,"endHours":16.597375859664766,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:36","end":"17:36","startHours":16.597375859664766,"endHours":17.597375859664766,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:36","end":"18:36","startHours":17.597375859664766,"endHours":18.597375859664766,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:36","end":"19:36","startHours":18.597375859664766,"endHours":19.597375859664766,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:36","end":"20:36","startHours":19.597375859664766,"endHours":20.597375859664766,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:36","end":"21:36","startHours":20.597375859664766,"endHours":21.597375859664766,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:36","end":"22:36","startHours":21.597375859664766,"endHours":22.597375859664766,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:36","end":"23:36","startHours":22.597375859664766,"endHours":23.597375859664766,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:36","end":"00:36","startHours":23.597375859664766,"endHours":24.597375859664766,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:36","end":"01:36","startHours":24.597375859664766,"endHours":25.597375859664766,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:36","end":"02:36","startHours":25.597375859664766,"endHours":26.597375859664766,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:36","end":"03:36","startHours":26.597375859664766,"endHours":27.597375859664766,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:36","end":"04:36","startHours":27.597375859664766,"endHours":28.597375859664766,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:36","end":"05:36","startHours":28.597375859664766,"endHours":29.597375859664766,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:36","end":"06:36","startHours":29.597375859664766,"endHours":30.597375859664766,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.93391011898226,"eotMinutes":-0.7698108297043191,"ayanamsa":23.9407}},"calendars":{"vikram_samvat":2063,"vikram_samvatsara":"Vikāri","saka_samvat":1928,"saka_samvatsara":"Vyaya","bengali_samvat":1413,"malayalam_era":1182,"nanakshahi_year":537,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Pūrṇimā · Vikram 2063 Vikāri · Śaka 1928 Vyaya"},"festivals":[{"id":"hanuman-jayanti","name":"Hanumān Jayantī","name_sanskrit":"हनुमान जयन्ती","tradition":"Vaishnava","associated_deity":"Bhagavān Hanumān (Rudra-aṁśa, Rāma-bhakta)","significance":"Birth of Hanumān (Caitra Pūrṇimā tradition; some traditions Mārgaśīrṣa Kṛṣṇa 14).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Caitra"},"precedence":1,"sources":["Vālmīki Rāmāyaṇa, Sundara-Kāṇḍa"]}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Dedicated festival walk for Hanumān Jayantī is not live yet; Guruvāra (Thursday) — 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 April 13, 2006 CE · Perth, Australia · Vidhyamitra","description":"April 13, 2006 CE for Perth, Australia: Śukla Pūrṇimā, sūryodaya 06:36, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2006-04-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2006-04-13","sa":"https://sa.vidhyamitra.com/city/perth/2006-04-13","hi":"https://hi.vidhyamitra.com/city/perth/2006-04-13","x-default":"https://vidhyamitra.com/city/perth/2006-04-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-21T19:15:57.323Z","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":"2026-09-21T19:15:57.323Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-21T19:15:57.323Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}