{"id":"vidhyamitra:city-day:perth:2012-07-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2012-07-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-07-21","date_display":"July 21, 2012 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":2012,"month":7,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456129.770833,"kali_year":5114,"ahargana":1867664.2708,"sun":{"sidereal_longitude":94.1638,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":116.7468,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":22.5829,"elapsed_within_tithi_degrees":10.5829},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":116.7468,"elapsed_within_degrees":10.0801},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.9106},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2012,"month":7,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456129.770833,"ahargana":1867664.2708,"kali_year":5114,"ayanamsa_lahiri":24.0284,"grahas":{"sun":{"sidereal_longitude":94.66373799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"moon":{"sidereal_longitude":116.90963799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false,"latitude":-4.3379},"mars":{"sidereal_longitude":165.40663800000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":106.96413799999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":43.989337999999975,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":51.875437999999974,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":179.02033800000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":222.1591,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":42.1591,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"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":2012,"month":7,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456129.770833,"kali_year":5114,"ahargana":1867664.2708,"sun":{"sidereal_longitude":94.1638,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":116.7468,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":22.5829,"elapsed_within_tithi_degrees":10.5829},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":116.7468,"elapsed_within_degrees":10.0801},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.9106},"karana":{"half_tithi_index":3,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.338,"elongation":22.583},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.338,"opposition_distance":157.417}},"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":"07:12","sunsetLocal":"17:33","solarNoonLocal":"12:23","dayLengthHours":10.353177058456332,"dayLengthDisplay":"10 Hours 21 Mins 11 Secs","nightLengthDisplay":"13 Hours 38 Mins 49 Secs","moonriseLocal":"08:26","moonsetLocal":"19:17","rahuKala":{"name":"Rāhu Kāla","start":"09:47","end":"11:05","startHours":9.788502459307317,"endHours":11.082649591614357,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:40","end":"14:58","startHours":13.67094385622844,"endHours":14.965090988535483,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:12","end":"08:30","startHours":7.200208194693233,"endHours":8.494355327000275,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:58","startHours":9.615949508333044,"endHours":9.961055410281588,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:38","end":"07:54","startHours":7.631590572128913,"endHours":7.907675293687749,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.031690821972854,"endHours":12.721902625869943,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:49","end":"06:31","startHours":5.819784586899056,"endHours":6.509996390796144,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:20","end":"07:12","startHours":6.337443439821872,"endHours":7.200208194693233,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:48","startHours":14.102326233664122,"endHours":14.792538037561211,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:21","end":"17:45","startHours":17.353385253149565,"endHours":17.753385253149563,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:33","end":"17:59","startHours":17.553385253149564,"endHours":17.984767630585246,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:18","end":"19:03","startHours":17.303385253149564,"endHours":19.053385253149564,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.031690821972855,"endHours":24.72190262586994,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:12","end":"08:30","startHours":7.200208194693233,"endHours":8.494355327000275,"quality":"inauspicious"},{"name":"Śubha","start":"08:30","end":"09:47","startHours":8.494355327000275,"endHours":9.788502459307317,"quality":"auspicious"},{"name":"Roga","start":"09:47","end":"11:05","startHours":9.788502459307317,"endHours":11.082649591614357,"quality":"inauspicious"},{"name":"Udveg","start":"11:05","end":"12:23","startHours":11.082649591614357,"endHours":12.376796723921398,"quality":"inauspicious"},{"name":"Chala","start":"12:23","end":"13:40","startHours":12.376796723921398,"endHours":13.67094385622844,"quality":"neutral"},{"name":"Labha","start":"13:40","end":"14:58","startHours":13.67094385622844,"endHours":14.965090988535483,"quality":"auspicious"},{"name":"Amṛta","start":"14:58","end":"16:16","startHours":14.965090988535483,"endHours":16.25923812084252,"quality":"auspicious"},{"name":"Kāla","start":"16:16","end":"17:33","startHours":16.25923812084252,"endHours":17.553385253149564,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:33","end":"19:16","startHours":17.553385253149564,"endHours":19.25923812084252,"quality":"auspicious"},{"name":"Amṛta","start":"19:16","end":"20:58","startHours":19.25923812084252,"endHours":20.96509098853548,"quality":"auspicious"},{"name":"Kāla","start":"20:58","end":"22:40","startHours":20.96509098853548,"endHours":22.67094385622844,"quality":"inauspicious"},{"name":"Śubha","start":"22:40","end":"00:23","startHours":22.67094385622844,"endHours":24.376796723921398,"quality":"auspicious"},{"name":"Roga","start":"00:23","end":"02:05","startHours":24.376796723921398,"endHours":26.082649591614356,"quality":"inauspicious"},{"name":"Udveg","start":"02:05","end":"03:47","startHours":26.082649591614356,"endHours":27.788502459307317,"quality":"inauspicious"},{"name":"Chala","start":"03:47","end":"05:30","startHours":27.788502459307317,"endHours":29.494355327000275,"quality":"neutral"},{"name":"Labha","start":"05:30","end":"07:12","startHours":29.494355327000275,"endHours":31.200208194693232,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:12","end":"08:12","startHours":7.200208194693233,"endHours":8.200208194693232,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:12","end":"09:12","startHours":8.200208194693232,"endHours":9.200208194693232,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:12","end":"10:12","startHours":9.200208194693232,"endHours":10.200208194693232,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:12","end":"11:12","startHours":10.200208194693232,"endHours":11.200208194693232,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:12","end":"12:12","startHours":11.200208194693232,"endHours":12.200208194693232,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:12","end":"13:12","startHours":12.200208194693232,"endHours":13.200208194693232,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:12","end":"14:12","startHours":13.200208194693232,"endHours":14.200208194693232,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:12","end":"15:12","startHours":14.200208194693232,"endHours":15.200208194693232,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:12","end":"16:12","startHours":15.200208194693232,"endHours":16.200208194693232,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:12","end":"17:12","startHours":16.200208194693232,"endHours":17.200208194693232,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:12","end":"18:12","startHours":17.200208194693232,"endHours":18.200208194693232,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:12","end":"19:12","startHours":18.200208194693232,"endHours":19.200208194693232,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:12","end":"20:12","startHours":19.200208194693232,"endHours":20.200208194693232,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:12","end":"21:12","startHours":20.200208194693232,"endHours":21.200208194693232,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:12","end":"22:12","startHours":21.200208194693232,"endHours":22.200208194693232,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:12","end":"23:12","startHours":22.200208194693232,"endHours":23.200208194693232,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:12","end":"00:12","startHours":23.200208194693232,"endHours":24.200208194693232,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:12","end":"01:12","startHours":24.200208194693232,"endHours":25.200208194693232,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:12","end":"02:12","startHours":25.200208194693232,"endHours":26.200208194693232,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:12","end":"03:12","startHours":26.200208194693232,"endHours":27.200208194693232,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:12","end":"04:12","startHours":27.200208194693232,"endHours":28.200208194693232,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:12","end":"05:12","startHours":28.200208194693232,"endHours":29.200208194693232,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:12","end":"06:12","startHours":29.200208194693232,"endHours":30.200208194693232,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:12","end":"07:12","startHours":30.200208194693232,"endHours":31.200208194693232,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-West","rahuVasa":"East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":20.419786547651896,"eotMinutes":-6.049803435283957,"ayanamsa":24.0284}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Śukla Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Śukla Dvitīyā · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 July 21, 2012 CE · Perth, Australia · Vidhyamitra","description":"July 21, 2012 CE for Perth, Australia: Śukla Dvitīyā, sūryodaya 07:12, sūryāsta 17:33.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2012-07-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2012-07-21","sa":"https://sa.vidhyamitra.com/city/perth/2012-07-21","hi":"https://hi.vidhyamitra.com/city/perth/2012-07-21","x-default":"https://vidhyamitra.com/city/perth/2012-07-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T23:32:29.755Z","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":"2026-05-15T23:32:29.755Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T23:32:29.755Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}