{"id":"vidhyamitra:city-day:melbourne:2017-12-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/melbourne/2017-12-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-12-18","date_display":"December 18, 2017 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":2017,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458105.770833,"kali_year":5119,"ahargana":1869640.2708,"sun":{"sidereal_longitude":241.7924,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":240.1187,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.3263,"elapsed_within_tithi_degrees":10.3263},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.1187,"elapsed_within_degrees":0.1187},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":121.9111},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2017,"month":12,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458105.770833,"ahargana":1869640.2708,"kali_year":5119,"ayanamsa_lahiri":24.1039,"grahas":{"sun":{"sidereal_longitude":242.19494099999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"moon":{"sidereal_longitude":239.74264100000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false,"latitude":3.7875},"mars":{"sidereal_longitude":191.030441,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":230.79324099999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":200.08904099999995,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":236.62364100000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":245.49164100000007,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":117.4611,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":297.4611,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2017,"month":12,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458105.770833,"kali_year":5119,"ahargana":1869640.2708,"sun":{"sidereal_longitude":241.7924,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":240.1187,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":358.3263,"elapsed_within_tithi_degrees":10.3263},"nakshatra":{"number":19,"name":"Mūla","pada":1,"moon_longitude":240.1187,"elapsed_within_degrees":0.1187},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":121.9111},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.787,"elongation":1.674},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.787,"opposition_distance":178.326}},"eclipse_window_40days":[]},"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"melbourne","name":"Melbourne, Australia","lat":-37.8136,"lon":144.9631,"tz_offset_hours":10,"country":"AU","tier":"diaspora"},"sunriseLocal":"04:54","sunsetLocal":"19:41","solarNoonLocal":"12:17","dayLengthHours":14.777643968525943,"dayLengthDisplay":"14 Hours 46 Mins 40 Secs","nightLengthDisplay":"9 Hours 13 Mins 20 Secs","moonriseLocal":"04:46","moonsetLocal":"19:29","rahuKala":{"name":"Rāhu Kāla","start":"06:45","end":"08:36","startHours":6.747714722667082,"endHours":8.594920218732824,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:27","end":"12:17","startHours":10.442125714798568,"endHours":12.289331210864312,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:08","end":"15:59","startHours":14.136536706930055,"endHours":15.983742202995796,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:21","end":"08:50","startHours":8.348626152590725,"endHours":8.841214284874924,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:31","end":"05:55","startHours":5.516244391956587,"endHours":5.9103148977839455,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:47","startHours":11.796743078580114,"endHours":12.781919343148509,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:56","end":"03:55","startHours":2.9301566974645468,"endHours":3.915332962032943,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:40","end":"04:54","startHours":3.6690388958908438,"endHours":4.900509226601339,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:45","end":"15:44","startHours":14.752271872285302,"endHours":15.737448136853699,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:29","end":"19:53","startHours":19.478153195127284,"endHours":19.878153195127283,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:41","end":"20:18","startHours":19.678153195127283,"endHours":20.29388836048253,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:26","end":"21:11","startHours":19.428153195127283,"endHours":21.178153195127283,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:47","startHours":23.796743078580114,"endHours":24.78191934314851,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"04:54","end":"06:45","startHours":4.900509226601339,"endHours":6.747714722667082,"quality":"auspicious"},{"name":"Kāla","start":"06:45","end":"08:36","startHours":6.747714722667082,"endHours":8.594920218732824,"quality":"inauspicious"},{"name":"Śubha","start":"08:36","end":"10:27","startHours":8.594920218732824,"endHours":10.442125714798568,"quality":"auspicious"},{"name":"Roga","start":"10:27","end":"12:17","startHours":10.442125714798568,"endHours":12.289331210864312,"quality":"inauspicious"},{"name":"Udveg","start":"12:17","end":"14:08","startHours":12.289331210864312,"endHours":14.136536706930055,"quality":"inauspicious"},{"name":"Chala","start":"14:08","end":"15:59","startHours":14.136536706930055,"endHours":15.983742202995796,"quality":"neutral"},{"name":"Labha","start":"15:59","end":"17:50","startHours":15.983742202995796,"endHours":17.83094769906154,"quality":"auspicious"},{"name":"Amṛta","start":"17:50","end":"19:41","startHours":17.83094769906154,"endHours":19.678153195127283,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:41","end":"20:50","startHours":19.678153195127283,"endHours":20.83094769906154,"quality":"neutral"},{"name":"Labha","start":"20:50","end":"21:59","startHours":20.83094769906154,"endHours":21.9837422029958,"quality":"auspicious"},{"name":"Amṛta","start":"21:59","end":"23:08","startHours":21.9837422029958,"endHours":23.136536706930055,"quality":"auspicious"},{"name":"Kāla","start":"23:08","end":"00:17","startHours":23.136536706930055,"endHours":24.28933121086431,"quality":"inauspicious"},{"name":"Śubha","start":"00:17","end":"01:27","startHours":24.28933121086431,"endHours":25.442125714798568,"quality":"auspicious"},{"name":"Roga","start":"01:27","end":"02:36","startHours":25.442125714798568,"endHours":26.594920218732824,"quality":"inauspicious"},{"name":"Udveg","start":"02:36","end":"03:45","startHours":26.594920218732824,"endHours":27.747714722667084,"quality":"inauspicious"},{"name":"Chala","start":"03:45","end":"04:54","startHours":27.747714722667084,"endHours":28.90050922660134,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"04:54","end":"05:54","startHours":4.900509226601339,"endHours":5.900509226601339,"planetary_lord":"Moon"},{"name":"Hora 2","start":"05:54","end":"06:54","startHours":5.900509226601339,"endHours":6.900509226601339,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"06:54","end":"07:54","startHours":6.900509226601339,"endHours":7.900509226601339,"planetary_lord":"Venus"},{"name":"Hora 4","start":"07:54","end":"08:54","startHours":7.900509226601339,"endHours":8.90050922660134,"planetary_lord":"Sun"},{"name":"Hora 5","start":"08:54","end":"09:54","startHours":8.90050922660134,"endHours":9.90050922660134,"planetary_lord":"Mars"},{"name":"Hora 6","start":"09:54","end":"10:54","startHours":9.90050922660134,"endHours":10.90050922660134,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"10:54","end":"11:54","startHours":10.90050922660134,"endHours":11.90050922660134,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"11:54","end":"12:54","startHours":11.90050922660134,"endHours":12.90050922660134,"planetary_lord":"Moon"},{"name":"Hora 9","start":"12:54","end":"13:54","startHours":12.90050922660134,"endHours":13.90050922660134,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"13:54","end":"14:54","startHours":13.90050922660134,"endHours":14.90050922660134,"planetary_lord":"Venus"},{"name":"Hora 11","start":"14:54","end":"15:54","startHours":14.90050922660134,"endHours":15.90050922660134,"planetary_lord":"Sun"},{"name":"Hora 12","start":"15:54","end":"16:54","startHours":15.90050922660134,"endHours":16.90050922660134,"planetary_lord":"Mars"},{"name":"Hora 13","start":"16:54","end":"17:54","startHours":16.90050922660134,"endHours":17.90050922660134,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"17:54","end":"18:54","startHours":17.90050922660134,"endHours":18.90050922660134,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"18:54","end":"19:54","startHours":18.90050922660134,"endHours":19.90050922660134,"planetary_lord":"Moon"},{"name":"Hora 16","start":"19:54","end":"20:54","startHours":19.90050922660134,"endHours":20.90050922660134,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"20:54","end":"21:54","startHours":20.90050922660134,"endHours":21.90050922660134,"planetary_lord":"Venus"},{"name":"Hora 18","start":"21:54","end":"22:54","startHours":21.90050922660134,"endHours":22.90050922660134,"planetary_lord":"Sun"},{"name":"Hora 19","start":"22:54","end":"23:54","startHours":22.90050922660134,"endHours":23.90050922660134,"planetary_lord":"Mars"},{"name":"Hora 20","start":"23:54","end":"00:54","startHours":23.90050922660134,"endHours":24.90050922660134,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"00:54","end":"01:54","startHours":24.90050922660134,"endHours":25.90050922660134,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"01:54","end":"02:54","startHours":25.90050922660134,"endHours":26.90050922660134,"planetary_lord":"Moon"},{"name":"Hora 23","start":"02:54","end":"03:54","startHours":26.90050922660134,"endHours":27.90050922660134,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"03:54","end":"04:54","startHours":27.90050922660134,"endHours":28.90050922660134,"planetary_lord":"Venus"}],"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","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-23.384706997067884,"eotMinutes":2.787727348141232,"ayanamsa":24.1039}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Amāvasyā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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":"melbourne"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 18, 2017 CE · Melbourne, Australia · Vidhyamitra","description":"December 18, 2017 CE for Melbourne, Australia: Kṛṣṇa Amāvasyā, sūryodaya 04:54, sūryāsta 19:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/melbourne/2017-12-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/melbourne/2017-12-18","sa":"https://sa.vidhyamitra.com/city/melbourne/2017-12-18","hi":"https://hi.vidhyamitra.com/city/melbourne/2017-12-18","x-default":"https://vidhyamitra.com/city/melbourne/2017-12-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T15:56:18.053Z","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":"2026-05-15T15:56:18.053Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T15:56:18.053Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}