{"id":"vidhyamitra:city-day:perth:2112-01-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2112-01-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2112-01-31","date_display":"January 31, 2112 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":2112,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2492481.770833,"kali_year":5213,"ahargana":1904016.2708,"sun":{"sidereal_longitude":284.5885,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":308.9451,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.3566,"elapsed_within_tithi_degrees":0.3566},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.9451,"elapsed_within_degrees":2.2784},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.5336},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":2112,"month":1,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2492481.770833,"ahargana":1904016.2708,"kali_year":5213,"ayanamsa_lahiri":25.4187,"grahas":{"sun":{"sidereal_longitude":284.85732499999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":311.501125,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":-2.4418},"mars":{"sidereal_longitude":209.97292500000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":295.39772500000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":180.42472499999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":258.1527249999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":307.387825,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":96.0552,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":276.0552,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara 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":2112,"month":1,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2492481.770833,"kali_year":5213,"ahargana":1904016.2708,"sun":{"sidereal_longitude":284.5885,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":308.9451,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":24.3566,"elapsed_within_tithi_degrees":0.3566},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.9451,"elapsed_within_degrees":2.2784},"yoga":{"number":18,"name":"Varīyān","sum_longitude":233.5336},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.442,"elongation":24.357},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.442,"opposition_distance":155.643}},"eclipse_window_40days":[{"offset_days":-17,"type":"lunar","occurs":true,"moon_latitude":-0.653,"opposition_distance":1.452},{"offset_days":-2,"type":"solar","occurs":true,"moon_latitude":-0.297,"elongation":2.597}]},"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":"05:40","sunsetLocal":"19:20","solarNoonLocal":"12:30","dayLengthHours":13.667890611933483,"dayLengthDisplay":"13 Hours 40 Mins 04 Secs","nightLengthDisplay":"10 Hours 19 Mins 56 Secs","moonriseLocal":"07:51","moonsetLocal":"20:42","rahuKala":{"name":"Rāhu Kāla","start":"17:38","end":"19:20","startHours":17.62691878850576,"endHours":19.335405114997442,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:30","end":"14:13","startHours":12.501459809030703,"endHours":14.209946135522387,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:55","end":"17:38","startHours":15.91843246201407,"endHours":17.62691878850576,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:51","end":"09:19","startHours":8.856688979181772,"endHours":9.31228533291289,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:14","end":"06:36","startHours":6.237009945227856,"endHours":6.601487028212748,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:57","startHours":12.045863455299585,"endHours":12.957056162761816,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:51","end":"04:45","startHours":3.8451290881394957,"endHours":4.756321795601727,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:32","end":"05:40","startHours":4.52852361873617,"endHours":5.66751450306396,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:41","startHours":14.779441577686281,"endHours":15.690634285148514,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:08","end":"19:32","startHours":19.135405114997443,"endHours":19.53540511499744,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:20","end":"19:54","startHours":19.335405114997442,"endHours":19.904900557161337,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:05","end":"20:50","startHours":19.085405114997442,"endHours":20.835405114997442,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:57","startHours":24.045863455299582,"endHours":24.957056162761816,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:40","end":"07:23","startHours":5.66751450306396,"endHours":7.376000829555645,"quality":"inauspicious"},{"name":"Chala","start":"07:23","end":"09:05","startHours":7.376000829555645,"endHours":9.08448715604733,"quality":"neutral"},{"name":"Labha","start":"09:05","end":"10:48","startHours":9.08448715604733,"endHours":10.792973482539015,"quality":"auspicious"},{"name":"Amṛta","start":"10:48","end":"12:30","startHours":10.792973482539015,"endHours":12.501459809030703,"quality":"auspicious"},{"name":"Kāla","start":"12:30","end":"14:13","startHours":12.501459809030703,"endHours":14.209946135522387,"quality":"inauspicious"},{"name":"Śubha","start":"14:13","end":"15:55","startHours":14.209946135522387,"endHours":15.91843246201407,"quality":"auspicious"},{"name":"Roga","start":"15:55","end":"17:38","startHours":15.91843246201407,"endHours":17.62691878850576,"quality":"inauspicious"},{"name":"Udveg","start":"17:38","end":"19:20","startHours":17.62691878850576,"endHours":19.335405114997442,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:20","end":"20:38","startHours":19.335405114997442,"endHours":20.62691878850576,"quality":"auspicious"},{"name":"Roga","start":"20:38","end":"21:55","startHours":20.62691878850576,"endHours":21.91843246201407,"quality":"inauspicious"},{"name":"Udveg","start":"21:55","end":"23:13","startHours":21.91843246201407,"endHours":23.209946135522387,"quality":"inauspicious"},{"name":"Chala","start":"23:13","end":"00:30","startHours":23.209946135522387,"endHours":24.5014598090307,"quality":"neutral"},{"name":"Labha","start":"00:30","end":"01:48","startHours":24.5014598090307,"endHours":25.792973482539015,"quality":"auspicious"},{"name":"Amṛta","start":"01:48","end":"03:05","startHours":25.792973482539015,"endHours":27.08448715604733,"quality":"auspicious"},{"name":"Kāla","start":"03:05","end":"04:23","startHours":27.08448715604733,"endHours":28.376000829555643,"quality":"inauspicious"},{"name":"Śubha","start":"04:23","end":"05:40","startHours":28.376000829555643,"endHours":29.66751450306396,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.66751450306396,"endHours":6.66751450306396,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.66751450306396,"endHours":7.66751450306396,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.66751450306396,"endHours":8.667514503063959,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.667514503063959,"endHours":9.667514503063959,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.667514503063959,"endHours":10.667514503063959,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.667514503063959,"endHours":11.667514503063959,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.667514503063959,"endHours":12.667514503063959,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.667514503063959,"endHours":13.667514503063959,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.667514503063959,"endHours":14.667514503063959,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.667514503063959,"endHours":15.667514503063959,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.667514503063959,"endHours":16.66751450306396,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.66751450306396,"endHours":17.66751450306396,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.66751450306396,"endHours":18.66751450306396,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.66751450306396,"endHours":19.66751450306396,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.66751450306396,"endHours":20.66751450306396,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.66751450306396,"endHours":21.66751450306396,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.66751450306396,"endHours":22.66751450306396,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.66751450306396,"endHours":23.66751450306396,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.66751450306396,"endHours":24.66751450306396,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.66751450306396,"endHours":25.66751450306396,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.66751450306396,"endHours":26.66751450306396,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.66751450306396,"endHours":27.66751450306396,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.66751450306396,"endHours":28.66751450306396,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.66751450306396,"endHours":29.66751450306396,"planetary_lord":"Jupiter"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","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":-17.664670054467962,"eotMinutes":-13.52958854184206,"ayanamsa":25.4187}},"calendars":{"vikram_samvat":2169,"vikram_samvatsara":"Pārthiva","saka_samvat":2034,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1519,"malayalam_era":1288,"nanakshahi_year":643,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Tṛtīyā · Vikram 2169 Pārthiva · Śaka 2034 Aṅgirasa"},"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 31, 2112 CE · Perth, Australia · Vidhyamitra","description":"January 31, 2112 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 05:40, sūryāsta 19:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2112-01-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2112-01-31","sa":"https://sa.vidhyamitra.com/city/perth/2112-01-31","hi":"https://hi.vidhyamitra.com/city/perth/2112-01-31","x-default":"https://vidhyamitra.com/city/perth/2112-01-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T08:43:53.714Z","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":"2026-06-03T08:43:53.714Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T08:43:53.714Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}