{"id":"vidhyamitra:city-day:perth:1978-12-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1978-12-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1978-12-29","date_display":"December 29, 1978 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":1978,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443871.770833,"kali_year":5080,"ahargana":1855406.2708,"sun":{"sidereal_longitude":253.1883,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":241.6826,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":348.4943,"elapsed_within_tithi_degrees":0.4943},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.6826,"elapsed_within_degrees":1.6826},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":134.8709},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"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":1978,"month":12,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2443871.770833,"ahargana":1855406.2708,"kali_year":5080,"ayanamsa_lahiri":23.5595,"grahas":{"sun":{"sidereal_longitude":253.40038400000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":242.59608400000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false,"latitude":4.5},"mars":{"sidereal_longitude":259.1580839999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":232.032784,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":103.424484,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"venus":{"sidereal_longitude":208.595284,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":140.244884,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":151.6469,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":331.6469,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1978,"month":12,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2443871.770833,"kali_year":5080,"ahargana":1855406.2708,"sun":{"sidereal_longitude":253.1883,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":241.6826,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":348.4943,"elapsed_within_tithi_degrees":0.4943},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":241.6826,"elapsed_within_degrees":1.6826},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":134.8709},"karana":{"half_tithi_index":58,"name":"Catuṣpāda"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.5,"elongation":11.506},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.5,"opposition_distance":168.494}},"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":"05:12","sunsetLocal":"19:26","solarNoonLocal":"12:19","dayLengthHours":14.220955333968098,"dayLengthDisplay":"14 Hours 13 Mins 15 Secs","nightLengthDisplay":"9 Hours 46 Mins 45 Secs","moonriseLocal":"04:30","moonsetLocal":"18:41","rahuKala":{"name":"Rāhu Kāla","start":"10:32","end":"12:19","startHours":10.537460190663479,"endHours":12.31507960740949,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:52","end":"17:39","startHours":15.870318440901515,"endHours":17.647937857647527,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:59","end":"08:46","startHours":6.982221357171455,"endHours":8.759840773917468,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:31","end":"09:00","startHours":8.522824851684666,"endHours":8.99685669615027,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:48","end":"06:11","startHours":5.797141746007447,"endHours":6.1763672215799295,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:47","startHours":11.841047762943889,"endHours":12.789111451875096,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:19","end":"04:15","startHours":3.3084745625630294,"endHours":4.256538251494236,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:01","end":"05:12","startHours":4.019522329261434,"endHours":5.204601940425443,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:38","startHours":14.685238829737507,"endHours":15.633302518668714,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.22555727439354,"endHours":19.62555727439354,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.42555727439354,"endHours":20.018097079975544,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.17555727439354,"endHours":20.92555727439354,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:47","startHours":23.84104776294389,"endHours":24.789111451875097,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:12","end":"06:59","startHours":5.204601940425443,"endHours":6.982221357171455,"quality":"neutral"},{"name":"Labha","start":"06:59","end":"08:46","startHours":6.982221357171455,"endHours":8.759840773917468,"quality":"auspicious"},{"name":"Amṛta","start":"08:46","end":"10:32","startHours":8.759840773917468,"endHours":10.537460190663479,"quality":"auspicious"},{"name":"Kāla","start":"10:32","end":"12:19","startHours":10.537460190663479,"endHours":12.31507960740949,"quality":"inauspicious"},{"name":"Śubha","start":"12:19","end":"14:06","startHours":12.31507960740949,"endHours":14.092699024155504,"quality":"auspicious"},{"name":"Roga","start":"14:06","end":"15:52","startHours":14.092699024155504,"endHours":15.870318440901515,"quality":"inauspicious"},{"name":"Udveg","start":"15:52","end":"17:39","startHours":15.870318440901515,"endHours":17.647937857647527,"quality":"inauspicious"},{"name":"Chala","start":"17:39","end":"19:26","startHours":17.647937857647527,"endHours":19.42555727439354,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:26","end":"20:39","startHours":19.42555727439354,"endHours":20.647937857647527,"quality":"inauspicious"},{"name":"Udveg","start":"20:39","end":"21:52","startHours":20.647937857647527,"endHours":21.870318440901517,"quality":"inauspicious"},{"name":"Chala","start":"21:52","end":"23:06","startHours":21.870318440901517,"endHours":23.092699024155504,"quality":"neutral"},{"name":"Labha","start":"23:06","end":"00:19","startHours":23.092699024155504,"endHours":24.31507960740949,"quality":"auspicious"},{"name":"Amṛta","start":"00:19","end":"01:32","startHours":24.31507960740949,"endHours":25.53746019066348,"quality":"auspicious"},{"name":"Kāla","start":"01:32","end":"02:46","startHours":25.53746019066348,"endHours":26.759840773917468,"quality":"inauspicious"},{"name":"Śubha","start":"02:46","end":"03:59","startHours":26.759840773917468,"endHours":27.982221357171454,"quality":"auspicious"},{"name":"Roga","start":"03:59","end":"05:12","startHours":27.982221357171454,"endHours":29.20460194042544,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.204601940425443,"endHours":6.204601940425443,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.204601940425443,"endHours":7.204601940425443,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.204601940425443,"endHours":8.204601940425443,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.204601940425443,"endHours":9.204601940425443,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.204601940425443,"endHours":10.204601940425443,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.204601940425443,"endHours":11.204601940425443,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.204601940425443,"endHours":12.204601940425443,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.204601940425443,"endHours":13.204601940425443,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.204601940425443,"endHours":14.204601940425443,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.204601940425443,"endHours":15.204601940425443,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.204601940425443,"endHours":16.20460194042544,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.20460194042544,"endHours":17.20460194042544,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.20460194042544,"endHours":18.20460194042544,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.20460194042544,"endHours":19.20460194042544,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.20460194042544,"endHours":20.20460194042544,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.20460194042544,"endHours":21.20460194042544,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.20460194042544,"endHours":22.20460194042544,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.20460194042544,"endHours":23.20460194042544,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.20460194042544,"endHours":24.20460194042544,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.20460194042544,"endHours":25.20460194042544,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.20460194042544,"endHours":26.20460194042544,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.20460194042544,"endHours":27.20460194042544,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.20460194042544,"endHours":28.20460194042544,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.20460194042544,"endHours":29.20460194042544,"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":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.253604960324335,"eotMinutes":-2.3467764445695645,"ayanamsa":23.5595}},"calendars":{"vikram_samvat":2035,"vikram_samvatsara":"Prajāpati","saka_samvat":1900,"saka_samvatsara":"Kālayukta","bengali_samvat":1385,"malayalam_era":1154,"nanakshahi_year":509,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Amāvasyā · Vikram 2035 Prajāpati · Śaka 1900 Kālayukta"},"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","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 December 29, 1978 CE · Perth, Australia · Vidhyamitra","description":"December 29, 1978 CE for Perth, Australia: Kṛṣṇa Amāvasyā, sūryodaya 05:12, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1978-12-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1978-12-29","sa":"https://sa.vidhyamitra.com/city/perth/1978-12-29","hi":"https://hi.vidhyamitra.com/city/perth/1978-12-29","x-default":"https://vidhyamitra.com/city/perth/1978-12-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:35:31.106Z","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":"2026-05-31T20:35:31.106Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:35:31.106Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}