{"id":"vidhyamitra:city-day:perth:2071-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2071-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2071-01-20","date_display":"January 20, 2071 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":2071,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2477496.770833,"kali_year":5172,"ahargana":1889031.2708,"sun":{"sidereal_longitude":274.9662,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":146.2878,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":231.3217,"elapsed_within_tithi_degrees":3.3217},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2878,"elapsed_within_degrees":12.9545},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.254},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2071,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2477496.770833,"ahargana":1889031.2708,"kali_year":5172,"ayanamsa_lahiri":24.8456,"grahas":{"sun":{"sidereal_longitude":275.210562,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":148.613362,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":-1.8104},"mars":{"sidereal_longitude":253.7307619999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":260.57756199999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":356.276662,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":299.27856199999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":185.76566200000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":170.0326,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":350.0326,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":2071,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2477496.770833,"kali_year":5172,"ahargana":1889031.2708,"sun":{"sidereal_longitude":274.9662,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":146.2878,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":231.3217,"elapsed_within_tithi_degrees":3.3217},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2878,"elapsed_within_degrees":12.9545},"yoga":{"number":5,"name":"Śobhana","sum_longitude":61.254},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.81,"elongation":128.678},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.81,"opposition_distance":51.322}},"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":"05:30","sunsetLocal":"19:25","solarNoonLocal":"12:28","dayLengthHours":13.906084800720308,"dayLengthDisplay":"13 Hours 54 Mins 22 Secs","nightLengthDisplay":"10 Hours 05 Mins 38 Secs","moonriseLocal":"22:05","moonsetLocal":"09:57","rahuKala":{"name":"Rāhu Kāla","start":"15:56","end":"17:40","startHours":15.935226255800565,"endHours":17.6734868558906,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:59","end":"10:43","startHours":8.982183855440411,"endHours":10.720444455530448,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.196965655710525,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:13","startHours":8.750415775428404,"endHours":9.213951935452416,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:27","startHours":6.085082855290346,"endHours":6.4559117833095545,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:55","startHours":11.995168895596478,"endHours":12.922241215644497,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:39","end":"04:35","startHours":3.6515180151642923,"endHours":4.578590335212312,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:21","end":"05:30","startHours":4.3468222552003075,"endHours":5.505662655260333,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.77638585574054,"endHours":15.70345817578856,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.211747455980642,"endHours":19.61174745598064,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"19:59","startHours":19.41174745598064,"endHours":19.991167656010653,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16174745598064,"endHours":20.91174745598064,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:55","startHours":23.99516889559648,"endHours":24.922241215644497,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:30","end":"07:15","startHours":5.505662655260333,"endHours":7.243923255350372,"quality":"inauspicious"},{"name":"Udveg","start":"07:15","end":"08:59","startHours":7.243923255350372,"endHours":8.982183855440411,"quality":"inauspicious"},{"name":"Chala","start":"08:59","end":"10:43","startHours":8.982183855440411,"endHours":10.720444455530448,"quality":"neutral"},{"name":"Labha","start":"10:43","end":"12:28","startHours":10.720444455530448,"endHours":12.458705055620488,"quality":"auspicious"},{"name":"Amṛta","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.196965655710525,"quality":"auspicious"},{"name":"Kāla","start":"14:12","end":"15:56","startHours":14.196965655710525,"endHours":15.935226255800565,"quality":"inauspicious"},{"name":"Śubha","start":"15:56","end":"17:40","startHours":15.935226255800565,"endHours":17.6734868558906,"quality":"auspicious"},{"name":"Roga","start":"17:40","end":"19:25","startHours":17.6734868558906,"endHours":19.41174745598064,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:25","end":"20:40","startHours":19.41174745598064,"endHours":20.6734868558906,"quality":"inauspicious"},{"name":"Śubha","start":"20:40","end":"21:56","startHours":20.6734868558906,"endHours":21.935226255800565,"quality":"auspicious"},{"name":"Roga","start":"21:56","end":"23:12","startHours":21.935226255800565,"endHours":23.196965655710528,"quality":"inauspicious"},{"name":"Udveg","start":"23:12","end":"00:28","startHours":23.196965655710528,"endHours":24.458705055620488,"quality":"inauspicious"},{"name":"Chala","start":"00:28","end":"01:43","startHours":24.458705055620488,"endHours":25.720444455530448,"quality":"neutral"},{"name":"Labha","start":"01:43","end":"02:59","startHours":25.720444455530448,"endHours":26.98218385544041,"quality":"auspicious"},{"name":"Amṛta","start":"02:59","end":"04:15","startHours":26.98218385544041,"endHours":28.243923255350374,"quality":"auspicious"},{"name":"Kāla","start":"04:15","end":"05:30","startHours":28.243923255350374,"endHours":29.505662655260334,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.505662655260333,"endHours":6.505662655260333,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.505662655260333,"endHours":7.505662655260333,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.505662655260333,"endHours":8.505662655260334,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.505662655260334,"endHours":9.505662655260334,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.505662655260334,"endHours":10.505662655260334,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.505662655260334,"endHours":11.505662655260334,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.505662655260334,"endHours":12.505662655260334,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.505662655260334,"endHours":13.505662655260334,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.505662655260334,"endHours":14.505662655260334,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.505662655260334,"endHours":15.505662655260334,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.505662655260334,"endHours":16.505662655260334,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.505662655260334,"endHours":17.505662655260334,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.505662655260334,"endHours":18.505662655260334,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.505662655260334,"endHours":19.505662655260334,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.505662655260334,"endHours":20.505662655260334,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.505662655260334,"endHours":21.505662655260334,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.505662655260334,"endHours":22.505662655260334,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.505662655260334,"endHours":23.505662655260334,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.505662655260334,"endHours":24.505662655260334,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.505662655260334,"endHours":25.505662655260334,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.505662655260334,"endHours":26.505662655260334,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.505662655260334,"endHours":27.505662655260334,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.505662655260334,"endHours":28.505662655260334,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.505662655260334,"endHours":29.505662655260334,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Siddhi","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":-20.13610019071086,"eotMinutes":-10.9643033372293,"ayanamsa":24.8456}},"calendars":{"vikram_samvat":2128,"vikram_samvatsara":"Krodhi","saka_samvat":1993,"saka_samvatsara":"Khara","bengali_samvat":1478,"malayalam_era":1247,"nanakshahi_year":602,"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 Pañcamī · Vikram 2128 Krodhi · Śaka 1993 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — 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 20, 2071 CE · Perth, Australia · Vidhyamitra","description":"January 20, 2071 CE for Perth, Australia: Kṛṣṇa Pañcamī, sūryodaya 05:30, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2071-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2071-01-20","sa":"https://sa.vidhyamitra.com/city/perth/2071-01-20","hi":"https://hi.vidhyamitra.com/city/perth/2071-01-20","x-default":"https://vidhyamitra.com/city/perth/2071-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T11:53:39.161Z","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":"2026-06-01T11:53:39.161Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T11:53:39.161Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}