{"id":"vidhyamitra:city-day:perth:2187-04-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2187-04-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2187-04-07","date_display":"April 7, 2187 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":2187,"month":4,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2519941.770833,"kali_year":5288,"ahargana":1931476.2708,"sun":{"sidereal_longitude":350.5054,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":327.9315,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.4261,"elapsed_within_tithi_degrees":1.4261},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.9315,"elapsed_within_degrees":7.9315},"yoga":{"number":24,"name":"Śukla","sum_longitude":318.4368},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2187,"month":4,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2519941.770833,"ahargana":1931476.2708,"kali_year":5288,"ayanamsa_lahiri":26.4689,"grahas":{"sun":{"sidereal_longitude":350.780651,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":328.964251,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false,"latitude":-4.1367},"mars":{"sidereal_longitude":159.103751,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":0.5890509999999836,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":295.70405099999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":326.3463509999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":158.91955099999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":81.0923,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":261.0923,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2187,"month":4,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2519941.770833,"kali_year":5288,"ahargana":1931476.2708,"sun":{"sidereal_longitude":350.5054,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":327.9315,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":337.4261,"elapsed_within_tithi_degrees":1.4261},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":327.9315,"elapsed_within_degrees":7.9315},"yoga":{"number":24,"name":"Śukla","sum_longitude":318.4368},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.137,"elongation":22.574},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.137,"opposition_distance":157.426}},"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":"06:32","sunsetLocal":"18:06","solarNoonLocal":"12:19","dayLengthHours":11.565700334686882,"dayLengthDisplay":"11 Hours 33 Mins 57 Secs","nightLengthDisplay":"12 Hours 26 Mins 03 Secs","moonriseLocal":"04:45","moonsetLocal":"16:59","rahuKala":{"name":"Rāhu Kāla","start":"09:26","end":"10:52","startHours":9.426008458742158,"endHours":10.87172100057802,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:46","end":"15:13","startHours":13.76314608424974,"endHours":15.2088586260856,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:32","end":"07:59","startHours":6.534583375070438,"endHours":7.980295916906298,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:37","startHours":9.233246786497379,"endHours":9.61877013098694,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:01","end":"07:19","startHours":7.016487555682391,"endHours":7.324906231274042,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:42","startHours":11.931910197924317,"endHours":12.702956886903443,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:00","end":"05:46","startHours":4.992489997112187,"endHours":5.763536686091313,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:34","end":"06:32","startHours":5.570775013846531,"endHours":6.534583375070438,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:01","startHours":14.245050264861693,"endHours":15.016096953840819,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.90028370975732,"endHours":18.30028370975732,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:35","startHours":18.10028370975732,"endHours":18.582187890369273,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.85028370975732,"endHours":19.60028370975732,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:42","startHours":23.931910197924317,"endHours":24.702956886903443,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:32","end":"07:59","startHours":6.534583375070438,"endHours":7.980295916906298,"quality":"inauspicious"},{"name":"Śubha","start":"07:59","end":"09:26","startHours":7.980295916906298,"endHours":9.426008458742158,"quality":"auspicious"},{"name":"Roga","start":"09:26","end":"10:52","startHours":9.426008458742158,"endHours":10.87172100057802,"quality":"inauspicious"},{"name":"Udveg","start":"10:52","end":"12:19","startHours":10.87172100057802,"endHours":12.31743354241388,"quality":"inauspicious"},{"name":"Chala","start":"12:19","end":"13:46","startHours":12.31743354241388,"endHours":13.76314608424974,"quality":"neutral"},{"name":"Labha","start":"13:46","end":"15:13","startHours":13.76314608424974,"endHours":15.2088586260856,"quality":"auspicious"},{"name":"Amṛta","start":"15:13","end":"16:39","startHours":15.2088586260856,"endHours":16.65457116792146,"quality":"auspicious"},{"name":"Kāla","start":"16:39","end":"18:06","startHours":16.65457116792146,"endHours":18.10028370975732,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:06","end":"19:39","startHours":18.10028370975732,"endHours":19.65457116792146,"quality":"auspicious"},{"name":"Amṛta","start":"19:39","end":"21:13","startHours":19.65457116792146,"endHours":21.2088586260856,"quality":"auspicious"},{"name":"Kāla","start":"21:13","end":"22:46","startHours":21.2088586260856,"endHours":22.76314608424974,"quality":"inauspicious"},{"name":"Śubha","start":"22:46","end":"00:19","startHours":22.76314608424974,"endHours":24.31743354241388,"quality":"auspicious"},{"name":"Roga","start":"00:19","end":"01:52","startHours":24.31743354241388,"endHours":25.87172100057802,"quality":"inauspicious"},{"name":"Udveg","start":"01:52","end":"03:26","startHours":25.87172100057802,"endHours":27.42600845874216,"quality":"inauspicious"},{"name":"Chala","start":"03:26","end":"04:59","startHours":27.42600845874216,"endHours":28.9802959169063,"quality":"neutral"},{"name":"Labha","start":"04:59","end":"06:32","startHours":28.9802959169063,"endHours":30.53458337507044,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:32","end":"07:32","startHours":6.534583375070438,"endHours":7.534583375070438,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:32","end":"08:32","startHours":7.534583375070438,"endHours":8.534583375070438,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:32","end":"09:32","startHours":8.534583375070438,"endHours":9.534583375070438,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:32","end":"10:32","startHours":9.534583375070438,"endHours":10.534583375070438,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:32","end":"11:32","startHours":10.534583375070438,"endHours":11.534583375070438,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:32","end":"12:32","startHours":11.534583375070438,"endHours":12.534583375070438,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:32","end":"13:32","startHours":12.534583375070438,"endHours":13.534583375070438,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:32","end":"14:32","startHours":13.534583375070438,"endHours":14.534583375070438,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:32","end":"15:32","startHours":14.534583375070438,"endHours":15.534583375070438,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:32","end":"16:32","startHours":15.534583375070438,"endHours":16.53458337507044,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:32","end":"17:32","startHours":16.53458337507044,"endHours":17.53458337507044,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:32","end":"18:32","startHours":17.53458337507044,"endHours":18.53458337507044,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:32","end":"19:32","startHours":18.53458337507044,"endHours":19.53458337507044,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:32","end":"20:32","startHours":19.53458337507044,"endHours":20.53458337507044,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:32","end":"21:32","startHours":20.53458337507044,"endHours":21.53458337507044,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:32","end":"22:32","startHours":21.53458337507044,"endHours":22.53458337507044,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:32","end":"23:32","startHours":22.53458337507044,"endHours":23.53458337507044,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:32","end":"00:32","startHours":23.53458337507044,"endHours":24.53458337507044,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:32","end":"01:32","startHours":24.53458337507044,"endHours":25.53458337507044,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:32","end":"02:32","startHours":25.53458337507044,"endHours":26.53458337507044,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:32","end":"03:32","startHours":26.53458337507044,"endHours":27.53458337507044,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:32","end":"04:32","startHours":27.53458337507044,"endHours":28.53458337507044,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:32","end":"05:32","startHours":28.53458337507044,"endHours":29.53458337507044,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:32","end":"06:32","startHours":29.53458337507044,"endHours":30.53458337507044,"planetary_lord":"Mercury"}],"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","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Amṛta","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":6.773300181935226,"eotMinutes":-2.4880125448329173,"ayanamsa":26.4689}},"calendars":{"vikram_samvat":2244,"vikram_samvatsara":"Śārvarī","saka_samvat":2109,"saka_samvatsara":"Sarvajit","bengali_samvat":1594,"malayalam_era":1363,"nanakshahi_year":718,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","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 Kṛṣṇa Caturdaśī · Vikram 2244 Śārvarī · Śaka 2109 Sarvajit"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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 April 7, 2187 CE · Perth, Australia · Vidhyamitra","description":"April 7, 2187 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 06:32, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2187-04-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2187-04-07","sa":"https://sa.vidhyamitra.com/city/perth/2187-04-07","hi":"https://hi.vidhyamitra.com/city/perth/2187-04-07","x-default":"https://vidhyamitra.com/city/perth/2187-04-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:49:20.164Z","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":"2026-05-31T14:49:20.164Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:49:20.164Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}