{"id":"vidhyamitra:city-day:perth:1918-01-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1918-01-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1918-01-27","date_display":"January 27, 1918 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":1918,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2421620.770833,"kali_year":5019,"ahargana":1833155.2708,"sun":{"sidereal_longitude":283.7686,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":104.2633,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.4946,"elapsed_within_tithi_degrees":0.4946},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.2633,"elapsed_within_degrees":10.9299},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":28.0319},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1918,"month":1,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2421620.770833,"ahargana":1833155.2708,"kali_year":5019,"ayanamsa_lahiri":22.7085,"grahas":{"sun":{"sidereal_longitude":283.591536,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":102.45973600000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":-2.4918},"mars":{"sidereal_longitude":161.045436,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":260.014136,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":39.242636000000005,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"venus":{"sidereal_longitude":305.946636,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":109.363136,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":250.612,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":70.612,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":1918,"month":1,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2421620.770833,"kali_year":5019,"ahargana":1833155.2708,"sun":{"sidereal_longitude":283.7686,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":104.2633,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":180.4946,"elapsed_within_tithi_degrees":0.4946},"nakshatra":{"number":8,"name":"Puṣya","pada":4,"moon_longitude":104.2633,"elapsed_within_degrees":10.9299},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":28.0319},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.492,"elongation":179.505},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.492,"opposition_distance":0.495}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":1.39,"elongation":0.055}]},"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":"05:36","sunsetLocal":"19:22","solarNoonLocal":"12:29","dayLengthHours":13.766173527655862,"dayLengthDisplay":"13 Hours 45 Mins 58 Secs","nightLengthDisplay":"10 Hours 14 Mins 02 Secs","moonriseLocal":"19:11","moonsetLocal":"05:38","rahuKala":{"name":"Rāhu Kāla","start":"17:39","end":"19:22","startHours":17.6510284979856,"endHours":19.371800188942583,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:29","end":"14:13","startHours":12.488713425114652,"endHours":14.209485116071635,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:56","end":"17:39","startHours":15.930256807028616,"endHours":17.6510284979856,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:17","startHours":8.817733817739756,"endHours":9.276606268661617,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:11","end":"06:33","startHours":6.179217224939048,"endHours":6.546315185676538,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:57","startHours":12.029840974192789,"endHours":12.947585876036515,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:46","end":"04:41","startHours":3.7701368575992724,"endHours":4.6878817594429965,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:28","end":"05:36","startHours":4.458445533982065,"endHours":5.6056266612867205,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.783075679723963,"endHours":15.700820581567687,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:10","end":"19:34","startHours":19.171800188942584,"endHours":19.571800188942582,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:22","end":"19:57","startHours":19.371800188942583,"endHours":19.94539075259491,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:07","end":"20:52","startHours":19.121800188942583,"endHours":20.871800188942583,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:57","startHours":24.02984097419279,"endHours":24.947585876036516,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:36","end":"07:20","startHours":5.6056266612867205,"endHours":7.326398352243704,"quality":"inauspicious"},{"name":"Chala","start":"07:20","end":"09:03","startHours":7.326398352243704,"endHours":9.047170043200687,"quality":"neutral"},{"name":"Labha","start":"09:03","end":"10:46","startHours":9.047170043200687,"endHours":10.767941734157668,"quality":"auspicious"},{"name":"Amṛta","start":"10:46","end":"12:29","startHours":10.767941734157668,"endHours":12.488713425114652,"quality":"auspicious"},{"name":"Kāla","start":"12:29","end":"14:13","startHours":12.488713425114652,"endHours":14.209485116071635,"quality":"inauspicious"},{"name":"Śubha","start":"14:13","end":"15:56","startHours":14.209485116071635,"endHours":15.930256807028616,"quality":"auspicious"},{"name":"Roga","start":"15:56","end":"17:39","startHours":15.930256807028616,"endHours":17.6510284979856,"quality":"inauspicious"},{"name":"Udveg","start":"17:39","end":"19:22","startHours":17.6510284979856,"endHours":19.371800188942583,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:22","end":"20:39","startHours":19.371800188942583,"endHours":20.6510284979856,"quality":"auspicious"},{"name":"Roga","start":"20:39","end":"21:56","startHours":20.6510284979856,"endHours":21.930256807028616,"quality":"inauspicious"},{"name":"Udveg","start":"21:56","end":"23:13","startHours":21.930256807028616,"endHours":23.209485116071633,"quality":"inauspicious"},{"name":"Chala","start":"23:13","end":"00:29","startHours":23.209485116071633,"endHours":24.488713425114653,"quality":"neutral"},{"name":"Labha","start":"00:29","end":"01:46","startHours":24.488713425114653,"endHours":25.767941734157667,"quality":"auspicious"},{"name":"Amṛta","start":"01:46","end":"03:03","startHours":25.767941734157667,"endHours":27.047170043200687,"quality":"auspicious"},{"name":"Kāla","start":"03:03","end":"04:20","startHours":27.047170043200687,"endHours":28.326398352243704,"quality":"inauspicious"},{"name":"Śubha","start":"04:20","end":"05:36","startHours":28.326398352243704,"endHours":29.60562666128672,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:36","end":"06:36","startHours":5.6056266612867205,"endHours":6.6056266612867205,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:36","end":"07:36","startHours":6.6056266612867205,"endHours":7.6056266612867205,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:36","end":"08:36","startHours":7.6056266612867205,"endHours":8.60562666128672,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:36","end":"09:36","startHours":8.60562666128672,"endHours":9.60562666128672,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:36","end":"10:36","startHours":9.60562666128672,"endHours":10.60562666128672,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:36","end":"11:36","startHours":10.60562666128672,"endHours":11.60562666128672,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:36","end":"12:36","startHours":11.60562666128672,"endHours":12.60562666128672,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:36","end":"13:36","startHours":12.60562666128672,"endHours":13.60562666128672,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:36","end":"14:36","startHours":13.60562666128672,"endHours":14.60562666128672,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:36","end":"15:36","startHours":14.60562666128672,"endHours":15.60562666128672,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:36","end":"16:36","startHours":15.60562666128672,"endHours":16.60562666128672,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:36","end":"17:36","startHours":16.60562666128672,"endHours":17.60562666128672,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:36","end":"18:36","startHours":17.60562666128672,"endHours":18.60562666128672,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:36","end":"19:36","startHours":18.60562666128672,"endHours":19.60562666128672,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:36","end":"20:36","startHours":19.60562666128672,"endHours":20.60562666128672,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:36","end":"21:36","startHours":20.60562666128672,"endHours":21.60562666128672,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:36","end":"22:36","startHours":21.60562666128672,"endHours":22.60562666128672,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:36","end":"23:36","startHours":22.60562666128672,"endHours":23.60562666128672,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:36","end":"00:36","startHours":23.60562666128672,"endHours":24.60562666128672,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:36","end":"01:36","startHours":24.60562666128672,"endHours":25.60562666128672,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:36","end":"02:36","startHours":25.60562666128672,"endHours":26.60562666128672,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:36","end":"03:36","startHours":26.60562666128672,"endHours":27.60562666128672,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:36","end":"04:36","startHours":27.60562666128672,"endHours":28.60562666128672,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:36","end":"05:36","startHours":28.60562666128672,"endHours":29.60562666128672,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-18.69580820768025,"eotMinutes":-12.76480550687915,"ayanamsa":22.7085}},"calendars":{"vikram_samvat":1975,"vikram_samvatsara":"Prajāpati","saka_samvat":1840,"saka_samvatsara":"Kālayukta","bengali_samvat":1325,"malayalam_era":1094,"nanakshahi_year":449,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Pratipada · Vikram 1975 Prajāpati · Śaka 1840 Kālayukta"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 January 27, 1918 CE · Perth, Australia · Vidhyamitra","description":"January 27, 1918 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 05:36, sūryāsta 19:22.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1918-01-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1918-01-27","sa":"https://sa.vidhyamitra.com/city/perth/1918-01-27","hi":"https://hi.vidhyamitra.com/city/perth/1918-01-27","x-default":"https://vidhyamitra.com/city/perth/1918-01-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T22:31:57.606Z","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":"2026-06-01T22:31:57.606Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T22:31:57.606Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}