{"id":"vidhyamitra:city-day:perth:2137-04-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2137-04-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2137-04-25","date_display":"April 25, 2137 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":2137,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501697.770833,"kali_year":5239,"ahargana":1913232.2708,"sun":{"sidereal_longitude":9.0024,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":64.8066,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.8042,"elapsed_within_tithi_degrees":7.8042},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.8066,"elapsed_within_degrees":11.4733},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":73.809},"karana":{"half_tithi_index":9,"name":"Bālava"},"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":2137,"month":4,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2501697.770833,"ahargana":1913232.2708,"kali_year":5239,"ayanamsa_lahiri":25.7712,"grahas":{"sun":{"sidereal_longitude":9.22530599999999,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":61.84930600000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false,"latitude":4.4658},"mars":{"sidereal_longitude":348.742606,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":340.52880600000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":217.342806,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":321.18770599999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":267.40460600000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":327.7472,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":147.7472,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2137,"month":4,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501697.770833,"kali_year":5239,"ahargana":1913232.2708,"sun":{"sidereal_longitude":9.0024,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":64.8066,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":55.8042,"elapsed_within_tithi_degrees":7.8042},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.8066,"elapsed_within_degrees":11.4733},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":73.809},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.466,"elongation":55.804},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.466,"opposition_distance":124.196}},"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":"06:44","sunsetLocal":"17:45","solarNoonLocal":"12:15","dayLengthHours":11.015458172734586,"dayLengthDisplay":"11 Hours 00 Mins 56 Secs","nightLengthDisplay":"12 Hours 59 Mins 04 Secs","moonriseLocal":"10:45","moonsetLocal":"20:45","rahuKala":{"name":"Rāhu Kāla","start":"13:37","end":"15:00","startHours":13.619821293624033,"endHours":14.996753565215858,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:44","end":"08:07","startHours":6.735159935664917,"endHours":8.11209220725674,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:29","end":"10:52","startHours":9.489024478848563,"endHours":10.865956750440388,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:18","end":"09:40","startHours":9.305433509302988,"endHours":9.67261544839414,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:29","startHours":7.194137359528859,"endHours":7.487882910801781,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:37","startHours":11.875707082941057,"endHours":12.610070961123364,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:16","end":"06:00","startHours":5.266432179300306,"endHours":6.000796057482612,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:44","startHours":5.817205087937035,"endHours":6.735159935664917,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:05","end":"14:49","startHours":14.078798717487974,"endHours":14.81316259567028,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:33","end":"17:57","startHours":17.550618108399505,"endHours":17.950618108399503,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:45","end":"18:13","startHours":17.750618108399504,"endHours":18.209595532263446,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:30","end":"19:15","startHours":17.500618108399504,"endHours":19.250618108399504,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:37","startHours":23.875707082941055,"endHours":24.610070961123363,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:44","end":"08:07","startHours":6.735159935664917,"endHours":8.11209220725674,"quality":"auspicious"},{"name":"Roga","start":"08:07","end":"09:29","startHours":8.11209220725674,"endHours":9.489024478848563,"quality":"inauspicious"},{"name":"Udveg","start":"09:29","end":"10:52","startHours":9.489024478848563,"endHours":10.865956750440388,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:15","startHours":10.865956750440388,"endHours":12.24288902203221,"quality":"neutral"},{"name":"Labha","start":"12:15","end":"13:37","startHours":12.24288902203221,"endHours":13.619821293624033,"quality":"auspicious"},{"name":"Amṛta","start":"13:37","end":"15:00","startHours":13.619821293624033,"endHours":14.996753565215858,"quality":"auspicious"},{"name":"Kāla","start":"15:00","end":"16:22","startHours":14.996753565215858,"endHours":16.37368583680768,"quality":"inauspicious"},{"name":"Śubha","start":"16:22","end":"17:45","startHours":16.37368583680768,"endHours":17.750618108399504,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:45","end":"19:22","startHours":17.750618108399504,"endHours":19.37368583680768,"quality":"auspicious"},{"name":"Kāla","start":"19:22","end":"21:00","startHours":19.37368583680768,"endHours":20.996753565215858,"quality":"inauspicious"},{"name":"Śubha","start":"21:00","end":"22:37","startHours":20.996753565215858,"endHours":22.619821293624035,"quality":"auspicious"},{"name":"Roga","start":"22:37","end":"00:15","startHours":22.619821293624035,"endHours":24.24288902203221,"quality":"inauspicious"},{"name":"Udveg","start":"00:15","end":"01:52","startHours":24.24288902203221,"endHours":25.86595675044039,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:29","startHours":25.86595675044039,"endHours":27.489024478848563,"quality":"neutral"},{"name":"Labha","start":"03:29","end":"05:07","startHours":27.489024478848563,"endHours":29.11209220725674,"quality":"auspicious"},{"name":"Amṛta","start":"05:07","end":"06:44","startHours":29.11209220725674,"endHours":30.735159935664917,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:44","end":"07:44","startHours":6.735159935664917,"endHours":7.735159935664917,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:44","end":"08:44","startHours":7.735159935664917,"endHours":8.735159935664917,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:44","end":"09:44","startHours":8.735159935664917,"endHours":9.735159935664917,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:44","end":"10:44","startHours":9.735159935664917,"endHours":10.735159935664917,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:44","end":"11:44","startHours":10.735159935664917,"endHours":11.735159935664917,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:44","end":"12:44","startHours":11.735159935664917,"endHours":12.735159935664917,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:44","end":"13:44","startHours":12.735159935664917,"endHours":13.735159935664917,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:44","end":"14:44","startHours":13.735159935664917,"endHours":14.735159935664917,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:44","end":"15:44","startHours":14.735159935664917,"endHours":15.735159935664917,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:44","end":"16:44","startHours":15.735159935664917,"endHours":16.735159935664917,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:44","end":"17:44","startHours":16.735159935664917,"endHours":17.735159935664917,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:44","end":"18:44","startHours":17.735159935664917,"endHours":18.735159935664917,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:44","end":"19:44","startHours":18.735159935664917,"endHours":19.735159935664917,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:44","end":"20:44","startHours":19.735159935664917,"endHours":20.735159935664917,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:44","end":"21:44","startHours":20.735159935664917,"endHours":21.735159935664917,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:44","end":"22:44","startHours":21.735159935664917,"endHours":22.735159935664917,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:44","end":"23:44","startHours":22.735159935664917,"endHours":23.735159935664917,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:44","end":"00:44","startHours":23.735159935664917,"endHours":24.735159935664917,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:44","end":"01:44","startHours":24.735159935664917,"endHours":25.735159935664917,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:44","end":"02:44","startHours":25.735159935664917,"endHours":26.735159935664917,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:44","end":"03:44","startHours":26.735159935664917,"endHours":27.735159935664917,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:44","end":"04:44","startHours":27.735159935664917,"endHours":28.735159935664917,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:44","end":"05:44","startHours":28.735159935664917,"endHours":29.735159935664917,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:44","end":"06:44","startHours":29.735159935664917,"endHours":30.735159935664917,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.185830878985698,"eotMinutes":1.9846586780673228,"ayanamsa":25.7712}},"calendars":{"vikram_samvat":2194,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":2059,"saka_samvatsara":"Hemalambī","bengali_samvat":1544,"malayalam_era":1313,"nanakshahi_year":668,"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 Pañcamī · Vikram 2194 Sādhāraṇa · Śaka 2059 Hemalambī"},"festivals":[{"id":"shankara-jayanti","name":"Ādi Śaṅkarācārya Jayantī","name_sanskrit":"आदि शङ्कराचार्य जयन्ती","tradition":"Smarta","associated_deity":"Ādi Śaṅkarācārya","significance":"Birth of Ādi Śaṅkara at Kāladī, Kerala; Advaita-pratiṣṭhāpaka.","vrata":false,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":3}],"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 25, 2137 CE · Perth, Australia · Vidhyamitra","description":"April 25, 2137 CE for Perth, Australia: Śukla Pañcamī, sūryodaya 06:44, sūryāsta 17:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2137-04-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2137-04-25","sa":"https://sa.vidhyamitra.com/city/perth/2137-04-25","hi":"https://hi.vidhyamitra.com/city/perth/2137-04-25","x-default":"https://vidhyamitra.com/city/perth/2137-04-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T10:49:58.832Z","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":"2026-06-01T10:49:58.832Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T10:49:58.832Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}