{"id":"vidhyamitra:city-day:perth:2129-10-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2129-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2129-10-04","date_display":"October 4, 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":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498937.770833,"kali_year":5231,"ahargana":1910472.2708,"sun":{"sidereal_longitude":164.1745,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":59.8114,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.6369,"elapsed_within_tithi_degrees":3.6369},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.8114,"elapsed_within_degrees":6.4781},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.9859},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"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":2129,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2498937.770833,"ahargana":1910472.2708,"kali_year":5231,"ayanamsa_lahiri":25.6656,"grahas":{"sun":{"sidereal_longitude":165.23505799999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":62.030958,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false,"latitude":-3.6473},"mars":{"sidereal_longitude":295.59615799999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":161.48385800000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":347.272158,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":147.77135799999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":176.05145800000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":113.9853,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":293.9853,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2129,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2498937.770833,"kali_year":5231,"ahargana":1910472.2708,"sun":{"sidereal_longitude":164.1745,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":59.8114,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":255.6369,"elapsed_within_tithi_degrees":3.6369},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":59.8114,"elapsed_within_degrees":6.4781},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":223.9859},"karana":{"half_tithi_index":42,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.647,"elongation":104.363},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.647,"opposition_distance":75.637}},"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":"05:50","sunsetLocal":"18:19","solarNoonLocal":"12:04","dayLengthHours":12.490974764829623,"dayLengthDisplay":"12 Hours 29 Mins 28 Secs","nightLengthDisplay":"11 Hours 30 Mins 32 Secs","moonriseLocal":"00:11","moonsetLocal":"10:12","rahuKala":{"name":"Rāhu Kāla","start":"15:12","end":"16:46","startHours":15.197092638079235,"endHours":16.75846448368294,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:57","end":"10:31","startHours":8.951605255664424,"endHours":10.512977101268127,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:04","end":"13:38","startHours":12.07434894687183,"endHours":13.635720792475531,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:10","startHours":8.743422342917263,"endHours":9.159788168411584,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:41","startHours":6.349318846324919,"endHours":6.682411506720375,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:39","end":"12:29","startHours":11.657983121377509,"endHours":12.49071477236615,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:10","end":"05:00","startHours":4.163398262479735,"endHours":4.996129913468376,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:50","startHours":4.787947000721216,"endHours":5.828861564457018,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:09","end":"14:59","startHours":14.156178074343433,"endHours":14.988909725332075,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.119836329286642,"endHours":18.51983632928664,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:50","startHours":18.31983632928664,"endHours":18.840293611154543,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.06983632928664,"endHours":19.81983632928664,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:39","end":"00:29","startHours":23.65798312137751,"endHours":24.49071477236615,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:50","end":"07:23","startHours":5.828861564457018,"endHours":7.390233410060721,"quality":"inauspicious"},{"name":"Udveg","start":"07:23","end":"08:57","startHours":7.390233410060721,"endHours":8.951605255664424,"quality":"inauspicious"},{"name":"Chala","start":"08:57","end":"10:31","startHours":8.951605255664424,"endHours":10.512977101268127,"quality":"neutral"},{"name":"Labha","start":"10:31","end":"12:04","startHours":10.512977101268127,"endHours":12.07434894687183,"quality":"auspicious"},{"name":"Amṛta","start":"12:04","end":"13:38","startHours":12.07434894687183,"endHours":13.635720792475531,"quality":"auspicious"},{"name":"Kāla","start":"13:38","end":"15:12","startHours":13.635720792475531,"endHours":15.197092638079235,"quality":"inauspicious"},{"name":"Śubha","start":"15:12","end":"16:46","startHours":15.197092638079235,"endHours":16.75846448368294,"quality":"auspicious"},{"name":"Roga","start":"16:46","end":"18:19","startHours":16.75846448368294,"endHours":18.31983632928664,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:19","end":"19:46","startHours":18.31983632928664,"endHours":19.75846448368294,"quality":"inauspicious"},{"name":"Śubha","start":"19:46","end":"21:12","startHours":19.75846448368294,"endHours":21.197092638079233,"quality":"auspicious"},{"name":"Roga","start":"21:12","end":"22:38","startHours":21.197092638079233,"endHours":22.63572079247553,"quality":"inauspicious"},{"name":"Udveg","start":"22:38","end":"00:04","startHours":22.63572079247553,"endHours":24.07434894687183,"quality":"inauspicious"},{"name":"Chala","start":"00:04","end":"01:31","startHours":24.07434894687183,"endHours":25.512977101268127,"quality":"neutral"},{"name":"Labha","start":"01:31","end":"02:57","startHours":25.512977101268127,"endHours":26.951605255664425,"quality":"auspicious"},{"name":"Amṛta","start":"02:57","end":"04:23","startHours":26.951605255664425,"endHours":28.39023341006072,"quality":"auspicious"},{"name":"Kāla","start":"04:23","end":"05:50","startHours":28.39023341006072,"endHours":29.828861564457018,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:50","end":"06:50","startHours":5.828861564457018,"endHours":6.828861564457018,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:50","end":"07:50","startHours":6.828861564457018,"endHours":7.828861564457018,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:50","end":"08:50","startHours":7.828861564457018,"endHours":8.828861564457018,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:50","end":"09:50","startHours":8.828861564457018,"endHours":9.828861564457018,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:50","end":"10:50","startHours":9.828861564457018,"endHours":10.828861564457018,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:50","end":"11:50","startHours":10.828861564457018,"endHours":11.828861564457018,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:50","end":"12:50","startHours":11.828861564457018,"endHours":12.828861564457018,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:50","end":"13:50","startHours":12.828861564457018,"endHours":13.828861564457018,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:50","end":"14:50","startHours":13.828861564457018,"endHours":14.828861564457018,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:50","end":"15:50","startHours":14.828861564457018,"endHours":15.828861564457018,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:50","end":"16:50","startHours":15.828861564457018,"endHours":16.828861564457018,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:50","end":"17:50","startHours":16.828861564457018,"endHours":17.828861564457018,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:50","end":"18:50","startHours":17.828861564457018,"endHours":18.828861564457018,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:50","end":"19:50","startHours":18.828861564457018,"endHours":19.828861564457018,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:50","end":"20:50","startHours":19.828861564457018,"endHours":20.828861564457018,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:50","end":"21:50","startHours":20.828861564457018,"endHours":21.828861564457018,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:50","end":"22:50","startHours":21.828861564457018,"endHours":22.828861564457018,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:50","end":"23:50","startHours":22.828861564457018,"endHours":23.828861564457018,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:50","end":"00:50","startHours":23.828861564457018,"endHours":24.828861564457018,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:50","end":"01:50","startHours":24.828861564457018,"endHours":25.828861564457018,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:50","end":"02:50","startHours":25.828861564457018,"endHours":26.828861564457018,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:50","end":"03:50","startHours":26.828861564457018,"endHours":27.828861564457018,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:50","end":"04:50","startHours":27.828861564457018,"endHours":28.828861564457018,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:50","end":"05:50","startHours":28.828861564457018,"endHours":29.828861564457018,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Mānasa","quality":"Auspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-4.313511505220978,"eotMinutes":12.09706318769023,"ayanamsa":25.6656}},"calendars":{"vikram_samvat":2186,"vikram_samvatsara":"Śubhakṛt","saka_samvat":2051,"saka_samvatsara":"Virodhi","bengali_samvat":1536,"malayalam_era":1305,"nanakshahi_year":660,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Saptamī · Vikram 2186 Śubhakṛt · Śaka 2051 Virodhi"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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 October 4, 2129 CE · Perth, Australia · Vidhyamitra","description":"October 4, 2129 CE for Perth, Australia: Kṛṣṇa Saptamī, sūryodaya 05:50, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2129-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2129-10-04","sa":"https://sa.vidhyamitra.com/city/perth/2129-10-04","hi":"https://hi.vidhyamitra.com/city/perth/2129-10-04","x-default":"https://vidhyamitra.com/city/perth/2129-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-23T07:33:43.465Z","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":"2026-05-23T07:33:43.465Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-23T07:33:43.465Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}