{"id":"vidhyamitra:city-day:sydney:1981-01-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/sydney/1981-01-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-30","date_display":"January 30, 1981 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":1981,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444634.770833,"kali_year":5082,"ahargana":1856169.2708,"sun":{"sidereal_longitude":286.5288,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":217.0104,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":290.4816,"elapsed_within_tithi_degrees":2.4816},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":217.0104,"elapsed_within_degrees":3.6771},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.5392},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"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":1981,"month":1,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444634.770833,"ahargana":1856169.2708,"kali_year":5082,"ayanamsa_lahiri":23.5887,"grahas":{"sun":{"sidereal_longitude":286.478832,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":216.75533199999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false,"latitude":4.3298},"mars":{"sidereal_longitude":300.45883200000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":304.61593200000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":166.809932,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":true},"venus":{"sidereal_longitude":270.166832,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.85333200000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":111.2195,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":291.2195,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444634.770833,"kali_year":5082,"ahargana":1856169.2708,"sun":{"sidereal_longitude":286.5288,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":217.0104,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":290.4816,"elapsed_within_tithi_degrees":2.4816},"nakshatra":{"number":17,"name":"Anurādhā","pada":2,"moon_longitude":217.0104,"elapsed_within_degrees":3.6771},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.5392},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.33,"elongation":69.518},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.33,"opposition_distance":110.482}},"eclipse_window_40days":[{"offset_days":-10,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776},{"offset_days":6,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"sydney","name":"Sydney, Australia","lat":-33.8688,"lon":151.2093,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"sydney","name":"Sydney, Australia","lat":-33.8688,"lon":151.2093,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"sunriseLocal":"05:15","sunsetLocal":"19:02","solarNoonLocal":"12:09","dayLengthHours":13.79533472660249,"dayLengthDisplay":"13 Hours 47 Mins 43 Secs","nightLengthDisplay":"10 Hours 12 Mins 17 Secs","moonriseLocal":"00:29","moonsetLocal":"14:30","rahuKala":{"name":"Rāhu Kāla","start":"10:25","end":"12:09","startHours":10.417582258770764,"endHours":12.141999099596074,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:35","end":"17:19","startHours":15.590832781246696,"endHours":17.31524962207201,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:58","end":"08:42","startHours":6.968748577120141,"endHours":8.693165417945451,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:28","end":"08:55","startHours":8.463243172502077,"endHours":8.923087663388827,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:49","end":"06:11","startHours":5.819137349903267,"endHours":6.187012942612666,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:41","end":"12:36","startHours":11.682154608709324,"endHours":12.601843590482824,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:24","end":"04:19","startHours":3.404953772747831,"endHours":4.32464275452133,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:06","end":"05:15","startHours":4.0947205090779555,"endHours":5.244331736294829,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:22","startHours":14.441221554029823,"endHours":15.360910535803322,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:50","end":"19:14","startHours":18.83966646289732,"endHours":19.23966646289732,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:02","end":"19:37","startHours":19.03966646289732,"endHours":19.614472076505756,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:47","end":"20:32","startHours":18.78966646289732,"endHours":20.53966646289732,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:41","end":"00:36","startHours":23.682154608709325,"endHours":24.601843590482822,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:15","end":"06:58","startHours":5.244331736294829,"endHours":6.968748577120141,"quality":"neutral"},{"name":"Labha","start":"06:58","end":"08:42","startHours":6.968748577120141,"endHours":8.693165417945451,"quality":"auspicious"},{"name":"Amṛta","start":"08:42","end":"10:25","startHours":8.693165417945451,"endHours":10.417582258770764,"quality":"auspicious"},{"name":"Kāla","start":"10:25","end":"12:09","startHours":10.417582258770764,"endHours":12.141999099596074,"quality":"inauspicious"},{"name":"Śubha","start":"12:09","end":"13:52","startHours":12.141999099596074,"endHours":13.866415940421387,"quality":"auspicious"},{"name":"Roga","start":"13:52","end":"15:35","startHours":13.866415940421387,"endHours":15.590832781246696,"quality":"inauspicious"},{"name":"Udveg","start":"15:35","end":"17:19","startHours":15.590832781246696,"endHours":17.31524962207201,"quality":"inauspicious"},{"name":"Chala","start":"17:19","end":"19:02","startHours":17.31524962207201,"endHours":19.03966646289732,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:02","end":"20:19","startHours":19.03966646289732,"endHours":20.31524962207201,"quality":"inauspicious"},{"name":"Udveg","start":"20:19","end":"21:35","startHours":20.31524962207201,"endHours":21.590832781246696,"quality":"inauspicious"},{"name":"Chala","start":"21:35","end":"22:52","startHours":21.590832781246696,"endHours":22.866415940421383,"quality":"neutral"},{"name":"Labha","start":"22:52","end":"00:09","startHours":22.866415940421383,"endHours":24.141999099596074,"quality":"auspicious"},{"name":"Amṛta","start":"00:09","end":"01:25","startHours":24.141999099596074,"endHours":25.417582258770764,"quality":"auspicious"},{"name":"Kāla","start":"01:25","end":"02:42","startHours":25.417582258770764,"endHours":26.69316541794545,"quality":"inauspicious"},{"name":"Śubha","start":"02:42","end":"03:58","startHours":26.69316541794545,"endHours":27.968748577120138,"quality":"auspicious"},{"name":"Roga","start":"03:58","end":"05:15","startHours":27.968748577120138,"endHours":29.24433173629483,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.244331736294829,"endHours":6.244331736294829,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.244331736294829,"endHours":7.244331736294829,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.244331736294829,"endHours":8.244331736294829,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.244331736294829,"endHours":9.244331736294829,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.244331736294829,"endHours":10.244331736294829,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.244331736294829,"endHours":11.244331736294829,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.244331736294829,"endHours":12.244331736294829,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.244331736294829,"endHours":13.244331736294829,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.244331736294829,"endHours":14.244331736294829,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.244331736294829,"endHours":15.244331736294829,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.244331736294829,"endHours":16.24433173629483,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.24433173629483,"endHours":17.24433173629483,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.24433173629483,"endHours":18.24433173629483,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.24433173629483,"endHours":19.24433173629483,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.24433173629483,"endHours":20.24433173629483,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.24433173629483,"endHours":21.24433173629483,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.24433173629483,"endHours":22.24433173629483,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.24433173629483,"endHours":23.24433173629483,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.24433173629483,"endHours":24.24433173629483,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.24433173629483,"endHours":25.24433173629483,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.24433173629483,"endHours":26.24433173629483,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.24433173629483,"endHours":27.24433173629483,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.24433173629483,"endHours":28.24433173629483,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.24433173629483,"endHours":29.24433173629483,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.720818877496043,"eotMinutes":-13.357145975764517,"ayanamsa":23.5887}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"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 Daśamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":"sydney"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 30, 1981 CE · Sydney, Australia · Vidhyamitra","description":"January 30, 1981 CE for Sydney, Australia: Kṛṣṇa Daśamī, sūryodaya 05:15, sūryāsta 19:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/sydney/1981-01-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/sydney/1981-01-30","sa":"https://sa.vidhyamitra.com/city/sydney/1981-01-30","hi":"https://hi.vidhyamitra.com/city/sydney/1981-01-30","x-default":"https://vidhyamitra.com/city/sydney/1981-01-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T03:02:42.803Z","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":"2026-06-03T03:02:42.803Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T03:02:42.803Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}