{"id":"vidhyamitra:city-day:perth:2107-04-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2107-04-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2107-04-28","date_display":"April 28, 2107 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":2107,"month":4,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490742.770833,"kali_year":5209,"ahargana":1902277.2708,"sun":{"sidereal_longitude":11.6814,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":72.2616,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.5802,"elapsed_within_tithi_degrees":0.5802},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":72.2616,"elapsed_within_degrees":5.5949},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.9429},"karana":{"half_tithi_index":10,"name":"Kaulava"},"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":2107,"month":4,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2490742.770833,"ahargana":1902277.2708,"kali_year":5209,"ayanamsa_lahiri":25.3522,"grahas":{"sun":{"sidereal_longitude":11.846667000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":72.720867,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":-4.046},"mars":{"sidereal_longitude":3.33196700000002,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":26.514967000000013,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":26.622267000000022,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":347.859767,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":261.25966700000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":188.1958,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":8.1958,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2107,"month":4,"day":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490742.770833,"kali_year":5209,"ahargana":1902277.2708,"sun":{"sidereal_longitude":11.6814,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":72.2616,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":60.5802,"elapsed_within_tithi_degrees":0.5802},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":72.2616,"elapsed_within_degrees":5.5949},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.9429},"karana":{"half_tithi_index":10,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.046,"elongation":60.58},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.046,"opposition_distance":119.42}},"eclipse_window_40days":[{"offset_days":9,"type":"lunar","occurs":true,"moon_latitude":0.984,"opposition_distance":0.02}]},"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":"06:46","sunsetLocal":"17:43","solarNoonLocal":"12:14","dayLengthHours":10.95124769072993,"dayLengthDisplay":"10 Hours 57 Mins 04 Secs","nightLengthDisplay":"13 Hours 02 Mins 56 Secs","moonriseLocal":"11:16","moonsetLocal":"21:19","rahuKala":{"name":"Rāhu Kāla","start":"13:36","end":"14:58","startHours":13.603333125417578,"endHours":14.972239086758819,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:46","end":"08:08","startHours":6.7588033187113705,"endHours":8.127709280052612,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:30","end":"10:52","startHours":9.496615241393853,"endHours":10.865521202735096,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:19","end":"09:41","startHours":9.314094446548355,"endHours":9.679136036239353,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:13","end":"07:30","startHours":7.2151053058251176,"endHours":7.507138577577916,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:36","startHours":11.869385574385339,"endHours":12.599468753767335,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:18","end":"06:02","startHours":5.2986369599473795,"endHours":6.0287201393293754,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:51","end":"06:46","startHours":5.8461993444838765,"endHours":6.7588033187113705,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:47","startHours":14.059635112531325,"endHours":14.78971829191332,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:31","end":"17:55","startHours":17.5100510094413,"endHours":17.9100510094413,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:43","end":"18:10","startHours":17.7100510094413,"endHours":18.166352996555048,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:28","end":"19:13","startHours":17.4600510094413,"endHours":19.2100510094413,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:36","startHours":23.86938557438534,"endHours":24.599468753767333,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:46","end":"08:08","startHours":6.7588033187113705,"endHours":8.127709280052612,"quality":"auspicious"},{"name":"Roga","start":"08:08","end":"09:30","startHours":8.127709280052612,"endHours":9.496615241393853,"quality":"inauspicious"},{"name":"Udveg","start":"09:30","end":"10:52","startHours":9.496615241393853,"endHours":10.865521202735096,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:14","startHours":10.865521202735096,"endHours":12.234427164076337,"quality":"neutral"},{"name":"Labha","start":"12:14","end":"13:36","startHours":12.234427164076337,"endHours":13.603333125417578,"quality":"auspicious"},{"name":"Amṛta","start":"13:36","end":"14:58","startHours":13.603333125417578,"endHours":14.972239086758819,"quality":"auspicious"},{"name":"Kāla","start":"14:58","end":"16:20","startHours":14.972239086758819,"endHours":16.34114504810006,"quality":"inauspicious"},{"name":"Śubha","start":"16:20","end":"17:43","startHours":16.34114504810006,"endHours":17.7100510094413,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:43","end":"19:20","startHours":17.7100510094413,"endHours":19.34114504810006,"quality":"auspicious"},{"name":"Kāla","start":"19:20","end":"20:58","startHours":19.34114504810006,"endHours":20.97223908675882,"quality":"inauspicious"},{"name":"Śubha","start":"20:58","end":"22:36","startHours":20.97223908675882,"endHours":22.603333125417578,"quality":"auspicious"},{"name":"Roga","start":"22:36","end":"00:14","startHours":22.603333125417578,"endHours":24.234427164076337,"quality":"inauspicious"},{"name":"Udveg","start":"00:14","end":"01:52","startHours":24.234427164076337,"endHours":25.865521202735096,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:30","startHours":25.865521202735096,"endHours":27.496615241393854,"quality":"neutral"},{"name":"Labha","start":"03:30","end":"05:08","startHours":27.496615241393854,"endHours":29.127709280052613,"quality":"auspicious"},{"name":"Amṛta","start":"05:08","end":"06:46","startHours":29.127709280052613,"endHours":30.758803318711372,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:46","end":"07:46","startHours":6.7588033187113705,"endHours":7.7588033187113705,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:46","end":"08:46","startHours":7.7588033187113705,"endHours":8.75880331871137,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:46","end":"09:46","startHours":8.75880331871137,"endHours":9.75880331871137,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:46","end":"10:46","startHours":9.75880331871137,"endHours":10.75880331871137,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:46","end":"11:46","startHours":10.75880331871137,"endHours":11.75880331871137,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:46","end":"12:46","startHours":11.75880331871137,"endHours":12.75880331871137,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:46","end":"13:46","startHours":12.75880331871137,"endHours":13.75880331871137,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:46","end":"14:46","startHours":13.75880331871137,"endHours":14.75880331871137,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:46","end":"15:46","startHours":14.75880331871137,"endHours":15.75880331871137,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:46","end":"16:46","startHours":15.75880331871137,"endHours":16.758803318711372,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:46","end":"17:46","startHours":16.758803318711372,"endHours":17.758803318711372,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:46","end":"18:46","startHours":17.758803318711372,"endHours":18.758803318711372,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:46","end":"19:46","startHours":18.758803318711372,"endHours":19.758803318711372,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:46","end":"20:46","startHours":19.758803318711372,"endHours":20.758803318711372,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:46","end":"21:46","startHours":20.758803318711372,"endHours":21.758803318711372,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:46","end":"22:46","startHours":21.758803318711372,"endHours":22.758803318711372,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:46","end":"23:46","startHours":22.758803318711372,"endHours":23.758803318711372,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:46","end":"00:46","startHours":23.758803318711372,"endHours":24.758803318711372,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:46","end":"01:46","startHours":24.758803318711372,"endHours":25.758803318711372,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:46","end":"02:46","startHours":25.758803318711372,"endHours":26.758803318711372,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:46","end":"03:46","startHours":26.758803318711372,"endHours":27.758803318711372,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:46","end":"04:46","startHours":27.758803318711372,"endHours":28.758803318711372,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:46","end":"05:46","startHours":28.758803318711372,"endHours":29.758803318711372,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:46","end":"06:46","startHours":29.758803318711372,"endHours":30.758803318711372,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.913834907547773,"eotMinutes":2.4923701554198168,"ayanamsa":25.3522}},"calendars":{"vikram_samvat":2164,"vikram_samvatsara":"Vikrama","saka_samvat":2029,"saka_samvatsara":"Prabhava","bengali_samvat":1514,"malayalam_era":1283,"nanakshahi_year":638,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Ṣaṣṭhī · Vikram 2164 Vikrama · Śaka 2029 Prabhava"},"festivals":[],"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":"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 28, 2107 CE · Perth, Australia · Vidhyamitra","description":"April 28, 2107 CE for Perth, Australia: Śukla Ṣaṣṭhī, sūryodaya 06:46, sūryāsta 17:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2107-04-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2107-04-28","sa":"https://sa.vidhyamitra.com/city/perth/2107-04-28","hi":"https://hi.vidhyamitra.com/city/perth/2107-04-28","x-default":"https://vidhyamitra.com/city/perth/2107-04-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:08:02.553Z","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":"2026-05-31T21:08:02.553Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:08:02.553Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}