{"id":"vidhyamitra:city-day:perth:2172-02-06:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2172-02-06","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2172-02-06","date_display":"February 6, 2172 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":2172,"month":2,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514402.770833,"kali_year":5273,"ahargana":1925937.2708,"sun":{"sidereal_longitude":290.1839,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":64.1524,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":133.9686,"elapsed_within_tithi_degrees":1.9686},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.1524,"elapsed_within_degrees":10.8191},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":354.3363},"karana":{"half_tithi_index":22,"name":"Bava"},"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":2172,"month":2,"day":6,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2514402.770833,"ahargana":1925937.2708,"kali_year":5273,"ayanamsa_lahiri":26.2571,"grahas":{"sun":{"sidereal_longitude":290.554981,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":65.449881,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false,"latitude":3.4243},"mars":{"sidereal_longitude":179.966181,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":303.66068100000007,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":199.51028099999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":334.917681,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":319.28428099999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":14.5751,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":194.5751,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":2172,"month":2,"day":6,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2514402.770833,"kali_year":5273,"ahargana":1925937.2708,"sun":{"sidereal_longitude":290.1839,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":64.1524,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":133.9686,"elapsed_within_tithi_degrees":1.9686},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4,"moon_longitude":64.1524,"elapsed_within_degrees":10.8191},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":354.3363},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.424,"elongation":133.969},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.424,"opposition_distance":46.031}},"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":"05:46","sunsetLocal":"19:16","solarNoonLocal":"12:31","dayLengthHours":13.493332412610357,"dayLengthDisplay":"13 Hours 29 Mins 36 Secs","nightLengthDisplay":"10 Hours 30 Mins 24 Secs","moonriseLocal":"16:30","moonsetLocal":"02:31","rahuKala":{"name":"Rāhu Kāla","start":"14:12","end":"15:53","startHours":14.200888770200915,"endHours":15.88755532177721,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:46","end":"07:27","startHours":5.767556012319442,"endHours":7.454222563895737,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:08","end":"10:50","startHours":9.140889115472032,"endHours":10.827555667048326,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:22","startHours":8.916000241928526,"endHours":9.365777989015537,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:20","end":"06:41","startHours":6.329778196178207,"endHours":6.689600393847817,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:58","startHours":12.064444471537609,"endHours":12.963999965711633,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:58","end":"04:52","startHours":3.9684450239713946,"endHours":4.8680005181454185,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:39","end":"05:46","startHours":4.6431116446019125,"endHours":5.767556012319442,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:40","startHours":14.76311095405968,"endHours":15.662666448233704,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:04","end":"19:28","startHours":19.0608884249298,"endHours":19.4608884249298,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:16","end":"19:49","startHours":19.2608884249298,"endHours":19.823110608788564,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:01","end":"20:46","startHours":19.0108884249298,"endHours":20.7608884249298,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:58","startHours":24.06444447153761,"endHours":24.963999965711633,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:46","end":"07:27","startHours":5.767556012319442,"endHours":7.454222563895737,"quality":"auspicious"},{"name":"Roga","start":"07:27","end":"09:08","startHours":7.454222563895737,"endHours":9.140889115472032,"quality":"inauspicious"},{"name":"Udveg","start":"09:08","end":"10:50","startHours":9.140889115472032,"endHours":10.827555667048326,"quality":"inauspicious"},{"name":"Chala","start":"10:50","end":"12:31","startHours":10.827555667048326,"endHours":12.51422221862462,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"14:12","startHours":12.51422221862462,"endHours":14.200888770200915,"quality":"auspicious"},{"name":"Amṛta","start":"14:12","end":"15:53","startHours":14.200888770200915,"endHours":15.88755532177721,"quality":"auspicious"},{"name":"Kāla","start":"15:53","end":"17:34","startHours":15.88755532177721,"endHours":17.574221873353505,"quality":"inauspicious"},{"name":"Śubha","start":"17:34","end":"19:16","startHours":17.574221873353505,"endHours":19.2608884249298,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:16","end":"20:34","startHours":19.2608884249298,"endHours":20.574221873353505,"quality":"auspicious"},{"name":"Kāla","start":"20:34","end":"21:53","startHours":20.574221873353505,"endHours":21.88755532177721,"quality":"inauspicious"},{"name":"Śubha","start":"21:53","end":"23:12","startHours":21.88755532177721,"endHours":23.200888770200915,"quality":"auspicious"},{"name":"Roga","start":"23:12","end":"00:31","startHours":23.200888770200915,"endHours":24.51422221862462,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"01:50","startHours":24.51422221862462,"endHours":25.827555667048326,"quality":"inauspicious"},{"name":"Chala","start":"01:50","end":"03:08","startHours":25.827555667048326,"endHours":27.14088911547203,"quality":"neutral"},{"name":"Labha","start":"03:08","end":"04:27","startHours":27.14088911547203,"endHours":28.454222563895737,"quality":"auspicious"},{"name":"Amṛta","start":"04:27","end":"05:46","startHours":28.454222563895737,"endHours":29.767556012319442,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.767556012319442,"endHours":6.767556012319442,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.767556012319442,"endHours":7.767556012319442,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.767556012319442,"endHours":8.767556012319442,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.767556012319442,"endHours":9.767556012319442,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.767556012319442,"endHours":10.767556012319442,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.767556012319442,"endHours":11.767556012319442,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.767556012319442,"endHours":12.767556012319442,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.767556012319442,"endHours":13.767556012319442,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.767556012319442,"endHours":14.767556012319442,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.767556012319442,"endHours":15.767556012319442,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.767556012319442,"endHours":16.767556012319442,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.767556012319442,"endHours":17.767556012319442,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.767556012319442,"endHours":18.767556012319442,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.767556012319442,"endHours":19.767556012319442,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.767556012319442,"endHours":20.767556012319442,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.767556012319442,"endHours":21.767556012319442,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.767556012319442,"endHours":22.767556012319442,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.767556012319442,"endHours":23.767556012319442,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.767556012319442,"endHours":24.767556012319442,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.767556012319442,"endHours":25.767556012319442,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.767556012319442,"endHours":26.767556012319442,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.767556012319442,"endHours":27.767556012319442,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.767556012319442,"endHours":28.767556012319442,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.767556012319442,"endHours":29.767556012319442,"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":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-15.795547145628987,"eotMinutes":-14.295333117477217,"ayanamsa":26.2571}},"calendars":{"vikram_samvat":2229,"vikram_samvatsara":"Pārthiva","saka_samvat":2094,"saka_samvatsara":"Aṅgirasa","bengali_samvat":1579,"malayalam_era":1348,"nanakshahi_year":703,"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 Dvādaśī · Vikram 2229 Pārthiva · Śaka 2094 Aṅgirasa"},"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 February 6, 2172 CE · Perth, Australia · Vidhyamitra","description":"February 6, 2172 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 05:46, sūryāsta 19:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2172-02-06","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2172-02-06","sa":"https://sa.vidhyamitra.com/city/perth/2172-02-06","hi":"https://hi.vidhyamitra.com/city/perth/2172-02-06","x-default":"https://vidhyamitra.com/city/perth/2172-02-06"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T02:32:45.554Z","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":"2026-05-31T02:32:45.554Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T02:32:45.554Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}