{"id":"vidhyamitra:city-day:perth:2006-10-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2006-10-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2006-10-13","date_display":"October 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":"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":2006,"month":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454021.770833,"kali_year":5108,"ahargana":1865556.2708,"sun":{"sidereal_longitude":174.8651,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":70.86,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.9949,"elapsed_within_tithi_degrees":3.9949},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.86,"elapsed_within_degrees":4.1933},"yoga":{"number":19,"name":"Parigha","sum_longitude":245.7251},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2006,"month":10,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2454021.770833,"ahargana":1865556.2708,"kali_year":5108,"ayanamsa_lahiri":23.9477,"grahas":{"sun":{"sidereal_longitude":175.61907900000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":74.12627900000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false,"latitude":4.4663},"mars":{"sidereal_longitude":178.80287899999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":199.951679,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":207.66087900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":171.757479,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":118.40797900000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":333.8511,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":153.8511,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2006,"month":10,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2454021.770833,"kali_year":5108,"ahargana":1865556.2708,"sun":{"sidereal_longitude":174.8651,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":70.86,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.9949,"elapsed_within_tithi_degrees":3.9949},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":70.86,"elapsed_within_degrees":4.1933},"yoga":{"number":19,"name":"Parigha","sum_longitude":245.7251},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.466,"elongation":104.005},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.466,"opposition_distance":75.995}},"eclipse_window_40days":[{"offset_days":-6,"type":"lunar","occurs":true,"moon_latitude":1.079,"opposition_distance":0.871}]},"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":"05:39","sunsetLocal":"18:25","solarNoonLocal":"12:02","dayLengthHours":12.773738884916384,"dayLengthDisplay":"12 Hours 46 Mins 25 Secs","nightLengthDisplay":"11 Hours 13 Mins 35 Secs","moonriseLocal":"00:15","moonsetLocal":"10:17","rahuKala":{"name":"Rāhu Kāla","start":"10:26","end":"12:02","startHours":10.438542152584194,"endHours":12.035259513198742,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:14","end":"16:50","startHours":15.228694234427838,"endHours":16.825411595042386,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:15","end":"08:51","startHours":7.245107431355097,"endHours":8.841824791969646,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:38","end":"09:03","startHours":8.628929143887706,"endHours":9.054720440051586,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:11","end":"06:31","startHours":6.180629190945399,"endHours":6.521262227876503,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:28","startHours":11.609468217034863,"endHours":12.461050809362622,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:57","end":"04:48","startHours":3.9452248860850316,"endHours":4.7968074784127905,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:35","end":"05:39","startHours":4.583911830330851,"endHours":5.648390070740549,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:10","end":"15:01","startHours":14.16421599401814,"endHours":15.015798586345898,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:13","end":"18:37","startHours":18.222128955656935,"endHours":18.622128955656933,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:25","end":"18:57","startHours":18.422128955656934,"endHours":18.954368075861783,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:10","end":"19:55","startHours":18.172128955656934,"endHours":19.922128955656934,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:28","startHours":23.609468217034863,"endHours":24.46105080936262,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:39","end":"07:15","startHours":5.648390070740549,"endHours":7.245107431355097,"quality":"neutral"},{"name":"Labha","start":"07:15","end":"08:51","startHours":7.245107431355097,"endHours":8.841824791969646,"quality":"auspicious"},{"name":"Amṛta","start":"08:51","end":"10:26","startHours":8.841824791969646,"endHours":10.438542152584194,"quality":"auspicious"},{"name":"Kāla","start":"10:26","end":"12:02","startHours":10.438542152584194,"endHours":12.035259513198742,"quality":"inauspicious"},{"name":"Śubha","start":"12:02","end":"13:38","startHours":12.035259513198742,"endHours":13.63197687381329,"quality":"auspicious"},{"name":"Roga","start":"13:38","end":"15:14","startHours":13.63197687381329,"endHours":15.228694234427838,"quality":"inauspicious"},{"name":"Udveg","start":"15:14","end":"16:50","startHours":15.228694234427838,"endHours":16.825411595042386,"quality":"inauspicious"},{"name":"Chala","start":"16:50","end":"18:25","startHours":16.825411595042386,"endHours":18.422128955656934,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:25","end":"19:50","startHours":18.422128955656934,"endHours":19.825411595042386,"quality":"inauspicious"},{"name":"Udveg","start":"19:50","end":"21:14","startHours":19.825411595042386,"endHours":21.228694234427838,"quality":"inauspicious"},{"name":"Chala","start":"21:14","end":"22:38","startHours":21.228694234427838,"endHours":22.63197687381329,"quality":"neutral"},{"name":"Labha","start":"22:38","end":"00:02","startHours":22.63197687381329,"endHours":24.035259513198742,"quality":"auspicious"},{"name":"Amṛta","start":"00:02","end":"01:26","startHours":24.035259513198742,"endHours":25.438542152584194,"quality":"auspicious"},{"name":"Kāla","start":"01:26","end":"02:51","startHours":25.438542152584194,"endHours":26.841824791969646,"quality":"inauspicious"},{"name":"Śubha","start":"02:51","end":"04:15","startHours":26.841824791969646,"endHours":28.2451074313551,"quality":"auspicious"},{"name":"Roga","start":"04:15","end":"05:39","startHours":28.2451074313551,"endHours":29.64839007074055,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:39","end":"06:39","startHours":5.648390070740549,"endHours":6.648390070740549,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:39","end":"07:39","startHours":6.648390070740549,"endHours":7.648390070740549,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:39","end":"08:39","startHours":7.648390070740549,"endHours":8.64839007074055,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:39","end":"09:39","startHours":8.64839007074055,"endHours":9.64839007074055,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:39","end":"10:39","startHours":9.64839007074055,"endHours":10.64839007074055,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:39","end":"11:39","startHours":10.64839007074055,"endHours":11.64839007074055,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:39","end":"12:39","startHours":11.64839007074055,"endHours":12.64839007074055,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:39","end":"13:39","startHours":12.64839007074055,"endHours":13.64839007074055,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:39","end":"14:39","startHours":13.64839007074055,"endHours":14.64839007074055,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:39","end":"15:39","startHours":14.64839007074055,"endHours":15.64839007074055,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:39","end":"16:39","startHours":15.64839007074055,"endHours":16.64839007074055,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:39","end":"17:39","startHours":16.64839007074055,"endHours":17.64839007074055,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:39","end":"18:39","startHours":17.64839007074055,"endHours":18.64839007074055,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:39","end":"19:39","startHours":18.64839007074055,"endHours":19.64839007074055,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:39","end":"20:39","startHours":19.64839007074055,"endHours":20.64839007074055,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:39","end":"21:39","startHours":20.64839007074055,"endHours":21.64839007074055,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:39","end":"22:39","startHours":21.64839007074055,"endHours":22.64839007074055,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:39","end":"23:39","startHours":22.64839007074055,"endHours":23.64839007074055,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:39","end":"00:39","startHours":23.64839007074055,"endHours":24.64839007074055,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:39","end":"01:39","startHours":24.64839007074055,"endHours":25.64839007074055,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:39","end":"02:39","startHours":25.64839007074055,"endHours":26.64839007074055,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:39","end":"03:39","startHours":26.64839007074055,"endHours":27.64839007074055,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:39","end":"04:39","startHours":27.64839007074055,"endHours":28.64839007074055,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:39","end":"05:39","startHours":28.64839007074055,"endHours":29.64839007074055,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-7.654703943139035,"eotMinutes":14.442429208075392,"ayanamsa":23.9477}},"calendars":{"vikram_samvat":2063,"vikram_samvatsara":"Vikāri","saka_samvat":1928,"saka_samvatsara":"Vyaya","bengali_samvat":1413,"malayalam_era":1182,"nanakshahi_year":537,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Kṛṣṇa Saptamī · Vikram 2063 Vikāri · Śaka 1928 Vyaya"},"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":[]},"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 October 13, 2006 CE · Perth, Australia · Vidhyamitra","description":"October 13, 2006 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 05:39, sūryāsta 18:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2006-10-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2006-10-13","sa":"https://sa.vidhyamitra.com/city/perth/2006-10-13","hi":"https://hi.vidhyamitra.com/city/perth/2006-10-13","x-default":"https://vidhyamitra.com/city/perth/2006-10-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T14:47:56.809Z","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":"2026-06-01T14:47:56.809Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T14:47:56.809Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}