{"id":"vidhyamitra:city-day:perth:1901-07-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1901-07-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1901-07-15","date_display":"July 15, 1901 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":1901,"month":7,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415580.770833,"kali_year":5003,"ahargana":1827115.2708,"sun":{"sidereal_longitude":89.1619,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.6278,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.4659,"elapsed_within_tithi_degrees":2.4659},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.6278,"elapsed_within_degrees":12.9612},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.7897},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1901,"month":7,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2415580.770833,"ahargana":1827115.2708,"kali_year":5003,"ayanamsa_lahiri":22.4775,"grahas":{"sun":{"sidereal_longitude":89.360208,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"moon":{"sidereal_longitude":77.84720800000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false,"latitude":-3.394},"mars":{"sidereal_longitude":159.585108,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":88.15610800000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":255.28510800000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"venus":{"sidereal_longitude":110.89840800000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":261.254408,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":210.6403,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":30.6403,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"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":1901,"month":7,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2415580.770833,"kali_year":5003,"ahargana":1827115.2708,"sun":{"sidereal_longitude":89.1619,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.6278,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":350.4659,"elapsed_within_tithi_degrees":2.4659},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.6278,"elapsed_within_degrees":12.9612},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":168.7897},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.394,"elongation":9.534},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.394,"opposition_distance":170.466}},"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":"07:15","sunsetLocal":"17:29","solarNoonLocal":"12:22","dayLengthHours":10.232392436726078,"dayLengthDisplay":"10 Hours 13 Mins 57 Secs","nightLengthDisplay":"13 Hours 46 Mins 03 Secs","moonriseLocal":"06:35","moonsetLocal":"16:38","rahuKala":{"name":"Rāhu Kāla","start":"08:32","end":"09:49","startHours":8.53187968800064,"endHours":9.8109287425914,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:05","end":"12:22","startHours":11.08997779718216,"endHours":12.369026851772919,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:39","end":"14:56","startHours":13.64807590636368,"endHours":14.927124960954439,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"09:59","startHours":9.640388868645966,"endHours":9.981468616536834,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:41","end":"07:57","startHours":7.679180318273467,"endHours":7.952044116586162,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:43","startHours":12.027947103882049,"endHours":12.710106599663789,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:53","end":"06:34","startHours":5.888511641846403,"endHours":6.570671137628142,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:24","end":"07:15","startHours":6.400131263682708,"endHours":7.25283063340988,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:04","end":"14:45","startHours":14.074425591227266,"endHours":14.756585087009004,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:17","end":"17:41","startHours":17.28522307013596,"endHours":17.685223070135958,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:29","end":"17:55","startHours":17.48522307013596,"endHours":17.911572754999547,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:14","end":"18:59","startHours":17.23522307013596,"endHours":18.98522307013596,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:43","startHours":24.02794710388205,"endHours":24.71010659966379,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:15","end":"08:32","startHours":7.25283063340988,"endHours":8.53187968800064,"quality":"auspicious"},{"name":"Kāla","start":"08:32","end":"09:49","startHours":8.53187968800064,"endHours":9.8109287425914,"quality":"inauspicious"},{"name":"Śubha","start":"09:49","end":"11:05","startHours":9.8109287425914,"endHours":11.08997779718216,"quality":"auspicious"},{"name":"Roga","start":"11:05","end":"12:22","startHours":11.08997779718216,"endHours":12.369026851772919,"quality":"inauspicious"},{"name":"Udveg","start":"12:22","end":"13:39","startHours":12.369026851772919,"endHours":13.64807590636368,"quality":"inauspicious"},{"name":"Chala","start":"13:39","end":"14:56","startHours":13.64807590636368,"endHours":14.927124960954439,"quality":"neutral"},{"name":"Labha","start":"14:56","end":"16:12","startHours":14.927124960954439,"endHours":16.2061740155452,"quality":"auspicious"},{"name":"Amṛta","start":"16:12","end":"17:29","startHours":16.2061740155452,"endHours":17.48522307013596,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:29","end":"19:12","startHours":17.48522307013596,"endHours":19.206174015545198,"quality":"neutral"},{"name":"Labha","start":"19:12","end":"20:56","startHours":19.206174015545198,"endHours":20.92712496095444,"quality":"auspicious"},{"name":"Amṛta","start":"20:56","end":"22:39","startHours":20.92712496095444,"endHours":22.64807590636368,"quality":"auspicious"},{"name":"Kāla","start":"22:39","end":"00:22","startHours":22.64807590636368,"endHours":24.36902685177292,"quality":"inauspicious"},{"name":"Śubha","start":"00:22","end":"02:05","startHours":24.36902685177292,"endHours":26.089977797182158,"quality":"auspicious"},{"name":"Roga","start":"02:05","end":"03:49","startHours":26.089977797182158,"endHours":27.8109287425914,"quality":"inauspicious"},{"name":"Udveg","start":"03:49","end":"05:32","startHours":27.8109287425914,"endHours":29.53187968800064,"quality":"inauspicious"},{"name":"Chala","start":"05:32","end":"07:15","startHours":29.53187968800064,"endHours":31.25283063340988,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:15","end":"08:15","startHours":7.25283063340988,"endHours":8.25283063340988,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:15","end":"09:15","startHours":8.25283063340988,"endHours":9.25283063340988,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:15","end":"10:15","startHours":9.25283063340988,"endHours":10.25283063340988,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:15","end":"11:15","startHours":10.25283063340988,"endHours":11.25283063340988,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:15","end":"12:15","startHours":11.25283063340988,"endHours":12.25283063340988,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:15","end":"13:15","startHours":12.25283063340988,"endHours":13.25283063340988,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:15","end":"14:15","startHours":13.25283063340988,"endHours":14.25283063340988,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:15","end":"15:15","startHours":14.25283063340988,"endHours":15.25283063340988,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:15","end":"16:15","startHours":15.25283063340988,"endHours":16.25283063340988,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:15","end":"17:15","startHours":16.25283063340988,"endHours":17.25283063340988,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:15","end":"18:15","startHours":17.25283063340988,"endHours":18.25283063340988,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:15","end":"19:15","startHours":18.25283063340988,"endHours":19.25283063340988,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:15","end":"20:15","startHours":19.25283063340988,"endHours":20.25283063340988,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:15","end":"21:15","startHours":20.25283063340988,"endHours":21.25283063340988,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:15","end":"22:15","startHours":21.25283063340988,"endHours":22.25283063340988,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:15","end":"23:15","startHours":22.25283063340988,"endHours":23.25283063340988,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:15","end":"00:15","startHours":23.25283063340988,"endHours":24.25283063340988,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:15","end":"01:15","startHours":24.25283063340988,"endHours":25.25283063340988,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:15","end":"02:15","startHours":25.25283063340988,"endHours":26.25283063340988,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:15","end":"03:15","startHours":26.25283063340988,"endHours":27.25283063340988,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:15","end":"04:15","startHours":27.25283063340988,"endHours":28.25283063340988,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:15","end":"05:15","startHours":28.25283063340988,"endHours":29.25283063340988,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:15","end":"06:15","startHours":29.25283063340988,"endHours":30.25283063340988,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:15","end":"07:15","startHours":30.25283063340988,"endHours":31.25283063340988,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.66577376078167,"eotMinutes":-5.583611106375076,"ayanamsa":22.4775}},"calendars":{"vikram_samvat":1958,"vikram_samvatsara":"Ānanda","saka_samvat":1823,"saka_samvatsara":"Plava","bengali_samvat":1308,"malayalam_era":1077,"nanakshahi_year":432,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha (Adhika) Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":true,"lunar_month_purnimanta_is_adhika":true,"lunar_month_amanta_is_adhika":true,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha (Adhika) Kṛṣṇa Amāvasyā · Vikram 1958 Ānanda · Śaka 1823 Plava"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"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 15, 1901 CE · Perth, Australia · Vidhyamitra","description":"July 15, 1901 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 07:15, sūryāsta 17:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1901-07-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1901-07-15","sa":"https://sa.vidhyamitra.com/city/perth/1901-07-15","hi":"https://hi.vidhyamitra.com/city/perth/1901-07-15","x-default":"https://vidhyamitra.com/city/perth/1901-07-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T17:41:54.046Z","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":"2026-05-31T17:41:54.046Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T17:41:54.046Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}