{"id":"vidhyamitra:city-day:perth:2129-02-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2129-02-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2129-02-17","date_display":"February 17, 2129 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":2129,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498708.770833,"kali_year":5230,"ahargana":1910243.2708,"sun":{"sidereal_longitude":302.5299,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":278.5408,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.0109,"elapsed_within_tithi_degrees":0.0109},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.5408,"elapsed_within_degrees":11.8741},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.0707},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"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":2129,"month":2,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498708.770833,"ahargana":1910243.2708,"kali_year":5230,"ayanamsa_lahiri":25.6568,"grahas":{"sun":{"sidereal_longitude":302.73020799999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":277.11480800000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false,"latitude":2.0816},"mars":{"sidereal_longitude":231.18800799999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":289.066108,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":321.706008,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":306.9876079999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":174.48830799999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":126.1188,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":306.1188,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"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":2129,"month":2,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498708.770833,"kali_year":5230,"ahargana":1910243.2708,"sun":{"sidereal_longitude":302.5299,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":278.5408,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":336.0109,"elapsed_within_tithi_degrees":0.0109},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4,"moon_longitude":278.5408,"elapsed_within_degrees":11.8741},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":221.0707},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.082,"elongation":23.989},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.082,"opposition_distance":156.011}},"eclipse_window_40days":[{"offset_days":2,"type":"solar","occurs":true,"moon_latitude":-0.118,"elongation":2.953},{"offset_days":17,"type":"lunar","occurs":true,"moon_latitude":1.02,"opposition_distance":1.369}]},"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":"05:56","sunsetLocal":"19:06","solarNoonLocal":"12:31","dayLengthHours":13.153845272541723,"dayLengthDisplay":"13 Hours 09 Mins 14 Secs","nightLengthDisplay":"10 Hours 50 Mins 46 Secs","moonriseLocal":"03:54","moonsetLocal":"17:43","rahuKala":{"name":"Rāhu Kāla","start":"14:10","end":"15:48","startHours":14.161740131589983,"endHours":15.805970790657698,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:56","end":"07:35","startHours":5.940586836251406,"endHours":7.584817495319121,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:14","end":"10:52","startHours":9.229048154386836,"endHours":10.87327881345455,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:01","end":"09:27","startHours":9.009817399844474,"endHours":9.448278908929199,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:29","end":"06:50","startHours":6.488663722607311,"endHours":6.83943292987509,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.079047963437542,"endHours":12.955970981606992,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:11","end":"05:04","startHours":4.186740799912509,"endHours":5.063663818081958,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:51","end":"05:56","startHours":4.844433063539595,"endHours":5.940586836251406,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:35","startHours":14.709817017945888,"endHours":15.586740036115335,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:54","end":"19:18","startHours":18.89443210879313,"endHours":19.294432108793128,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:06","end":"19:39","startHours":19.09443210879313,"endHours":19.642508995149033,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:51","end":"20:36","startHours":18.84443210879313,"endHours":20.59443210879313,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.079047963437542,"endHours":24.955970981606992,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:56","end":"07:35","startHours":5.940586836251406,"endHours":7.584817495319121,"quality":"auspicious"},{"name":"Roga","start":"07:35","end":"09:14","startHours":7.584817495319121,"endHours":9.229048154386836,"quality":"inauspicious"},{"name":"Udveg","start":"09:14","end":"10:52","startHours":9.229048154386836,"endHours":10.87327881345455,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:31","startHours":10.87327881345455,"endHours":12.517509472522267,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"14:10","startHours":12.517509472522267,"endHours":14.161740131589983,"quality":"auspicious"},{"name":"Amṛta","start":"14:10","end":"15:48","startHours":14.161740131589983,"endHours":15.805970790657698,"quality":"auspicious"},{"name":"Kāla","start":"15:48","end":"17:27","startHours":15.805970790657698,"endHours":17.450201449725412,"quality":"inauspicious"},{"name":"Śubha","start":"17:27","end":"19:06","startHours":17.450201449725412,"endHours":19.09443210879313,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"19:06","end":"20:27","startHours":19.09443210879313,"endHours":20.450201449725412,"quality":"auspicious"},{"name":"Kāla","start":"20:27","end":"21:48","startHours":20.450201449725412,"endHours":21.805970790657696,"quality":"inauspicious"},{"name":"Śubha","start":"21:48","end":"23:10","startHours":21.805970790657696,"endHours":23.161740131589983,"quality":"auspicious"},{"name":"Roga","start":"23:10","end":"00:31","startHours":23.161740131589983,"endHours":24.517509472522267,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"01:52","startHours":24.517509472522267,"endHours":25.87327881345455,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:14","startHours":25.87327881345455,"endHours":27.229048154386838,"quality":"neutral"},{"name":"Labha","start":"03:14","end":"04:35","startHours":27.229048154386838,"endHours":28.584817495319122,"quality":"auspicious"},{"name":"Amṛta","start":"04:35","end":"05:56","startHours":28.584817495319122,"endHours":29.940586836251406,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.940586836251406,"endHours":6.940586836251406,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.940586836251406,"endHours":7.940586836251406,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.940586836251406,"endHours":8.940586836251406,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.940586836251406,"endHours":9.940586836251406,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.940586836251406,"endHours":10.940586836251406,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.940586836251406,"endHours":11.940586836251406,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.940586836251406,"endHours":12.940586836251406,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.940586836251406,"endHours":13.940586836251406,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.940586836251406,"endHours":14.940586836251406,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.940586836251406,"endHours":15.940586836251406,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.940586836251406,"endHours":16.940586836251406,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.940586836251406,"endHours":17.940586836251406,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.940586836251406,"endHours":18.940586836251406,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.940586836251406,"endHours":19.940586836251406,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.940586836251406,"endHours":20.940586836251406,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.940586836251406,"endHours":21.940586836251406,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.940586836251406,"endHours":22.940586836251406,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.940586836251406,"endHours":23.940586836251406,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.940586836251406,"endHours":24.940586836251406,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.940586836251406,"endHours":25.940586836251406,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.940586836251406,"endHours":26.940586836251406,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.940586836251406,"endHours":27.940586836251406,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.940586836251406,"endHours":28.940586836251406,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.940586836251406,"endHours":29.940586836251406,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.03346775885196,"eotMinutes":-14.492568351336082,"ayanamsa":25.6568}},"calendars":{"vikram_samvat":2186,"vikram_samvatsara":"Śubhakṛt","saka_samvat":2051,"saka_samvatsara":"Virodhi","bengali_samvat":1536,"malayalam_era":1305,"nanakshahi_year":660,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Caturdaśī · Vikram 2186 Śubhakṛt · Śaka 2051 Virodhi"},"festivals":[{"id":"maha-shivaratri","name":"Mahā Śivarātri","name_sanskrit":"महा शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"The greatest night of Lord Śiva; cosmic dance of dissolution.","vrata":true,"primary_observance":"Strict fast + night-long vigil + 4-yāma pūjā","detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":1},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"maha-shivaratri-walk","name":"Mahā Śivarātri Walk","name_sanskrit":"महा शिवरात्रि यात्रा","type":"festival","description":"Śiva-stuti through Bhāgavata + Mahābhārata Anuśāsana.","step_count":12,"url":"/walk/maha-shivaratri-walk"},"reason":"Today is Mahā Śivarātri — its dedicated 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 17, 2129 CE · Perth, Australia · Vidhyamitra","description":"February 17, 2129 CE for Perth, Australia: Kṛṣṇa Caturdaśī, sūryodaya 05:56, sūryāsta 19:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2129-02-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2129-02-17","sa":"https://sa.vidhyamitra.com/city/perth/2129-02-17","hi":"https://hi.vidhyamitra.com/city/perth/2129-02-17","x-default":"https://vidhyamitra.com/city/perth/2129-02-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T06:12:39.777Z","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":"2026-05-31T06:12:39.777Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T06:12:39.777Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}