{"id":"vidhyamitra:city-day:perth:2131-01-26:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2131-01-26","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2131-01-26","date_display":"January 26, 2131 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":2131,"month":1,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499416.770833,"kali_year":5232,"ahargana":1910951.2708,"sun":{"sidereal_longitude":279.5544,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":240.6777,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.1234,"elapsed_within_tithi_degrees":9.1234},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.6777,"elapsed_within_degrees":0.6777},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.2321},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2131,"month":1,"day":26,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2499416.770833,"ahargana":1910951.2708,"kali_year":5232,"ayanamsa_lahiri":25.6839,"grahas":{"sun":{"sidereal_longitude":279.90375700000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":241.254057,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false,"latitude":2.1059},"mars":{"sidereal_longitude":232.542957,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":277.15965700000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":18.762256999999977,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":237.07705699999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":198.157057,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":88.6055,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":268.6055,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"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":2131,"month":1,"day":26,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2499416.770833,"kali_year":5232,"ahargana":1910951.2708,"sun":{"sidereal_longitude":279.5544,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":240.6777,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":321.1234,"elapsed_within_tithi_degrees":9.1234},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.6777,"elapsed_within_degrees":0.6777},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.2321},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.106,"elongation":38.877},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.106,"opposition_distance":141.123}},"eclipse_window_40days":[{"offset_days":3,"type":"solar","occurs":true,"moon_latitude":-0.919,"elongation":2.391}]},"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":"19:23","solarNoonLocal":"12:29","dayLengthHours":13.783069402840242,"dayLengthDisplay":"13 Hours 46 Mins 59 Secs","nightLengthDisplay":"10 Hours 13 Mins 01 Secs","moonriseLocal":"02:49","moonsetLocal":"17:00","rahuKala":{"name":"Rāhu Kāla","start":"10:46","end":"12:29","startHours":10.762129415538812,"endHours":12.485013090893844,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:56","end":"17:39","startHours":15.930780441603904,"endHours":17.653664116958936,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:19","end":"09:02","startHours":7.316362064828752,"endHours":9.039245740183782,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:49","end":"09:16","startHours":8.809527916803113,"endHours":9.268963563564453,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:10","end":"06:32","startHours":6.167772947925399,"endHours":6.535321465334472,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:57","startHours":12.025577444132502,"endHours":12.944448737655186,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:45","end":"04:40","startHours":3.7557358024283563,"endHours":4.674607095951039,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:27","end":"05:36","startHours":4.444889272570368,"endHours":5.593478389473722,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.78219132470055,"endHours":15.701062618223233,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:11","end":"19:35","startHours":19.176547792313965,"endHours":19.576547792313963,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:23","end":"19:57","startHours":19.376547792313964,"endHours":19.95084235076564,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:08","end":"20:53","startHours":19.126547792313964,"endHours":20.876547792313964,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:57","startHours":24.0255774441325,"endHours":24.944448737655186,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:36","end":"07:19","startHours":5.593478389473722,"endHours":7.316362064828752,"quality":"neutral"},{"name":"Labha","start":"07:19","end":"09:02","startHours":7.316362064828752,"endHours":9.039245740183782,"quality":"auspicious"},{"name":"Amṛta","start":"09:02","end":"10:46","startHours":9.039245740183782,"endHours":10.762129415538812,"quality":"auspicious"},{"name":"Kāla","start":"10:46","end":"12:29","startHours":10.762129415538812,"endHours":12.485013090893844,"quality":"inauspicious"},{"name":"Śubha","start":"12:29","end":"14:12","startHours":12.485013090893844,"endHours":14.207896766248874,"quality":"auspicious"},{"name":"Roga","start":"14:12","end":"15:56","startHours":14.207896766248874,"endHours":15.930780441603904,"quality":"inauspicious"},{"name":"Udveg","start":"15:56","end":"17:39","startHours":15.930780441603904,"endHours":17.653664116958936,"quality":"inauspicious"},{"name":"Chala","start":"17:39","end":"19:23","startHours":17.653664116958936,"endHours":19.376547792313964,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:23","end":"20:39","startHours":19.376547792313964,"endHours":20.653664116958932,"quality":"inauspicious"},{"name":"Udveg","start":"20:39","end":"21:56","startHours":20.653664116958932,"endHours":21.930780441603904,"quality":"inauspicious"},{"name":"Chala","start":"21:56","end":"23:12","startHours":21.930780441603904,"endHours":23.207896766248872,"quality":"neutral"},{"name":"Labha","start":"23:12","end":"00:29","startHours":23.207896766248872,"endHours":24.485013090893844,"quality":"auspicious"},{"name":"Amṛta","start":"00:29","end":"01:46","startHours":24.485013090893844,"endHours":25.762129415538812,"quality":"auspicious"},{"name":"Kāla","start":"01:46","end":"03:02","startHours":25.762129415538812,"endHours":27.03924574018378,"quality":"inauspicious"},{"name":"Śubha","start":"03:02","end":"04:19","startHours":27.03924574018378,"endHours":28.316362064828752,"quality":"auspicious"},{"name":"Roga","start":"04:19","end":"05:36","startHours":28.316362064828752,"endHours":29.593478389473724,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:36","end":"06:36","startHours":5.593478389473722,"endHours":6.593478389473722,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:36","end":"07:36","startHours":6.593478389473722,"endHours":7.593478389473722,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:36","end":"08:36","startHours":7.593478389473722,"endHours":8.593478389473722,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:36","end":"09:36","startHours":8.593478389473722,"endHours":9.593478389473722,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:36","end":"10:36","startHours":9.593478389473722,"endHours":10.593478389473722,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:36","end":"11:36","startHours":10.593478389473722,"endHours":11.593478389473722,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:36","end":"12:36","startHours":11.593478389473722,"endHours":12.593478389473722,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:36","end":"13:36","startHours":12.593478389473722,"endHours":13.593478389473722,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:36","end":"14:36","startHours":13.593478389473722,"endHours":14.593478389473722,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:36","end":"15:36","startHours":14.593478389473722,"endHours":15.593478389473722,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:36","end":"16:36","startHours":15.593478389473722,"endHours":16.593478389473724,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:36","end":"17:36","startHours":16.593478389473724,"endHours":17.593478389473724,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:36","end":"18:36","startHours":17.593478389473724,"endHours":18.593478389473724,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:36","end":"19:36","startHours":18.593478389473724,"endHours":19.593478389473724,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:36","end":"20:36","startHours":19.593478389473724,"endHours":20.593478389473724,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:36","end":"21:36","startHours":20.593478389473724,"endHours":21.593478389473724,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:36","end":"22:36","startHours":21.593478389473724,"endHours":22.593478389473724,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:36","end":"23:36","startHours":22.593478389473724,"endHours":23.593478389473724,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:36","end":"00:36","startHours":23.593478389473724,"endHours":24.593478389473724,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:36","end":"01:36","startHours":24.593478389473724,"endHours":25.593478389473724,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:36","end":"02:36","startHours":25.593478389473724,"endHours":26.593478389473724,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:36","end":"03:36","startHours":26.593478389473724,"endHours":27.593478389473724,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:36","end":"04:36","startHours":27.593478389473724,"endHours":28.593478389473724,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:36","end":"05:36","startHours":28.593478389473724,"endHours":29.593478389473724,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Chatra","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":-18.871479370679264,"eotMinutes":-12.542785453630707,"ayanamsa":25.6839}},"calendars":{"vikram_samvat":2188,"vikram_samvatsara":"Krodhi","saka_samvat":2053,"saka_samvatsara":"Khara","bengali_samvat":1538,"malayalam_era":1307,"nanakshahi_year":662,"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 Dvādaśī · Vikram 2188 Krodhi · Śaka 2053 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 26, 2131 CE · Perth, Australia · Vidhyamitra","description":"January 26, 2131 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 05:36, sūryāsta 19:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2131-01-26","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2131-01-26","sa":"https://sa.vidhyamitra.com/city/perth/2131-01-26","hi":"https://hi.vidhyamitra.com/city/perth/2131-01-26","x-default":"https://vidhyamitra.com/city/perth/2131-01-26"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:13:52.072Z","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":"2026-05-31T06:13:52.072Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:13:52.072Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}