{"id":"vidhyamitra:city-day:perth:2100-07-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2100-07-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-07-29","date_display":"July 29, 2100 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":2100,"month":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488278.770833,"kali_year":5202,"ahargana":1899813.2708,"sun":{"sidereal_longitude":100.0741,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":9.2466,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.1725,"elapsed_within_tithi_degrees":5.1725},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.2466,"elapsed_within_degrees":9.2466},"yoga":{"number":9,"name":"Śūla","sum_longitude":109.3207},"karana":{"half_tithi_index":44,"name":"Bālava"},"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":2100,"month":7,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488278.770833,"ahargana":1899813.2708,"kali_year":5202,"ayanamsa_lahiri":25.2579,"grahas":{"sun":{"sidereal_longitude":100.82580999999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"moon":{"sidereal_longitude":8.825710000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false,"latitude":3.4707},"mars":{"sidereal_longitude":123.76101,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":95.75191000000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":170.30491000000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"venus":{"sidereal_longitude":53.89661000000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":174.44400999999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":318.7504,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":138.7504,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2100,"month":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488278.770833,"kali_year":5202,"ahargana":1899813.2708,"sun":{"sidereal_longitude":100.0741,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":9.2466,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":269.1725,"elapsed_within_tithi_degrees":5.1725},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.2466,"elapsed_within_degrees":9.2466},"yoga":{"number":9,"name":"Śūla","sum_longitude":109.3207},"karana":{"half_tithi_index":44,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.471,"elongation":90.828},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.471,"opposition_distance":89.172}},"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":"07:07","sunsetLocal":"17:38","solarNoonLocal":"12:23","dayLengthHours":10.511556480941179,"dayLengthDisplay":"10 Hours 30 Mins 42 Secs","nightLengthDisplay":"13 Hours 29 Mins 18 Secs","moonriseLocal":"00:45","moonsetLocal":"11:45","rahuKala":{"name":"Rāhu Kāla","start":"13:42","end":"15:00","startHours":13.692372166876751,"endHours":15.006316726994399,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:07","end":"08:26","startHours":7.122649366288515,"endHours":8.436593926406163,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:45","end":"11:04","startHours":9.75053848652381,"endHours":11.064483046641456,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:35","end":"09:56","startHours":9.575345878508124,"endHours":9.925731094539497,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:50","startHours":7.560630886327731,"endHours":7.840939059152829,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:44","startHours":12.02804239072773,"endHours":12.728812822790477,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:43","end":"06:25","startHours":5.721108502163025,"endHours":6.42187893422577,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:15","end":"07:07","startHours":6.246686326210083,"endHours":7.122649366288515,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:50","startHours":14.130353686915967,"endHours":14.831124118978712,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:26","end":"17:50","startHours":17.434205847229695,"endHours":17.834205847229693,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:38","end":"18:04","startHours":17.634205847229694,"endHours":18.07218736726891,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:23","end":"19:08","startHours":17.384205847229694,"endHours":19.134205847229694,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:44","startHours":24.02804239072773,"endHours":24.728812822790477,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:07","end":"08:26","startHours":7.122649366288515,"endHours":8.436593926406163,"quality":"auspicious"},{"name":"Roga","start":"08:26","end":"09:45","startHours":8.436593926406163,"endHours":9.75053848652381,"quality":"inauspicious"},{"name":"Udveg","start":"09:45","end":"11:04","startHours":9.75053848652381,"endHours":11.064483046641456,"quality":"inauspicious"},{"name":"Chala","start":"11:04","end":"12:23","startHours":11.064483046641456,"endHours":12.378427606759104,"quality":"neutral"},{"name":"Labha","start":"12:23","end":"13:42","startHours":12.378427606759104,"endHours":13.692372166876751,"quality":"auspicious"},{"name":"Amṛta","start":"13:42","end":"15:00","startHours":13.692372166876751,"endHours":15.006316726994399,"quality":"auspicious"},{"name":"Kāla","start":"15:00","end":"16:19","startHours":15.006316726994399,"endHours":16.320261287112046,"quality":"inauspicious"},{"name":"Śubha","start":"16:19","end":"17:38","startHours":16.320261287112046,"endHours":17.634205847229694,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:38","end":"19:19","startHours":17.634205847229694,"endHours":19.320261287112046,"quality":"auspicious"},{"name":"Kāla","start":"19:19","end":"21:00","startHours":19.320261287112046,"endHours":21.0063167269944,"quality":"inauspicious"},{"name":"Śubha","start":"21:00","end":"22:42","startHours":21.0063167269944,"endHours":22.69237216687675,"quality":"auspicious"},{"name":"Roga","start":"22:42","end":"00:23","startHours":22.69237216687675,"endHours":24.378427606759104,"quality":"inauspicious"},{"name":"Udveg","start":"00:23","end":"02:04","startHours":24.378427606759104,"endHours":26.064483046641456,"quality":"inauspicious"},{"name":"Chala","start":"02:04","end":"03:45","startHours":26.064483046641456,"endHours":27.75053848652381,"quality":"neutral"},{"name":"Labha","start":"03:45","end":"05:26","startHours":27.75053848652381,"endHours":29.43659392640616,"quality":"auspicious"},{"name":"Amṛta","start":"05:26","end":"07:07","startHours":29.43659392640616,"endHours":31.122649366288513,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.122649366288515,"endHours":8.122649366288515,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.122649366288515,"endHours":9.122649366288515,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.122649366288515,"endHours":10.122649366288515,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.122649366288515,"endHours":11.122649366288515,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.122649366288515,"endHours":12.122649366288515,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.122649366288515,"endHours":13.122649366288515,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.122649366288515,"endHours":14.122649366288515,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.122649366288515,"endHours":15.122649366288515,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.122649366288515,"endHours":16.122649366288513,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.122649366288513,"endHours":17.122649366288513,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.122649366288513,"endHours":18.122649366288513,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.122649366288513,"endHours":19.122649366288513,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.122649366288513,"endHours":20.122649366288513,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.122649366288513,"endHours":21.122649366288513,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.122649366288513,"endHours":22.122649366288513,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.122649366288513,"endHours":23.122649366288513,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.122649366288513,"endHours":24.122649366288513,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.122649366288513,"endHours":25.122649366288513,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.122649366288513,"endHours":26.122649366288513,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.122649366288513,"endHours":27.122649366288513,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.122649366288513,"endHours":28.122649366288513,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.122649366288513,"endHours":29.122649366288513,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.122649366288513,"endHours":30.122649366288513,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.122649366288513,"endHours":31.122649366288513,"planetary_lord":"Moon"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.749452638661264,"eotMinutes":-6.147656405546237,"ayanamsa":25.2579}},"calendars":{"vikram_samvat":2157,"vikram_samvatsara":"Śrīmukha","saka_samvat":2022,"saka_samvatsara":"Raudra","bengali_samvat":1507,"malayalam_era":1276,"nanakshahi_year":631,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Śrāvaṇa","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Aṣṭamī · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"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":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"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 July 29, 2100 CE · Perth, Australia · Vidhyamitra","description":"July 29, 2100 CE for Perth, Australia: Kṛṣṇa Aṣṭamī, sūryodaya 07:07, sūryāsta 17:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2100-07-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2100-07-29","sa":"https://sa.vidhyamitra.com/city/perth/2100-07-29","hi":"https://hi.vidhyamitra.com/city/perth/2100-07-29","x-default":"https://vidhyamitra.com/city/perth/2100-07-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T07:40:12.197Z","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":"2026-06-01T07:40:12.197Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T07:40:12.197Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}