{"id":"vidhyamitra:city-day:perth:1998-02-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1998-02-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1998-02-07","date_display":"February 7, 1998 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450851.770833,"kali_year":5099,"ahargana":1862386.2708,"sun":{"sidereal_longitude":294.2882,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":61.8804,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.5922,"elapsed_within_tithi_degrees":7.5922},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.8804,"elapsed_within_degrees":8.547},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":356.1686},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1998,"month":2,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2450851.770833,"ahargana":1862386.2708,"kali_year":5099,"ayanamsa_lahiri":23.8265,"grahas":{"sun":{"sidereal_longitude":294.228697,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":62.856596999999965,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false,"latitude":-4.4306},"mars":{"sidereal_longitude":316.16279699999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":283.30329699999993,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":306.774997,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":264.543897,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":352.089597,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":141.8129,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":321.8129,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1998,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2450851.770833,"kali_year":5099,"ahargana":1862386.2708,"sun":{"sidereal_longitude":294.2882,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":61.8804,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":127.5922,"elapsed_within_tithi_degrees":7.5922},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.8804,"elapsed_within_degrees":8.547},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":356.1686},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.431,"elongation":127.592},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.431,"opposition_distance":52.408}},"eclipse_window_40days":[{"offset_days":20,"type":"solar","occurs":true,"moon_latitude":0.255,"elongation":2.931}]},"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":"05:47","sunsetLocal":"19:15","solarNoonLocal":"12:31","dayLengthHours":13.458542269972874,"dayLengthDisplay":"13 Hours 27 Mins 31 Secs","nightLengthDisplay":"10 Hours 32 Mins 29 Secs","moonriseLocal":"16:05","moonsetLocal":"02:06","rahuKala":{"name":"Rāhu Kāla","start":"09:09","end":"10:50","startHours":9.150958640996226,"endHours":10.833276424742834,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:12","end":"15:53","startHours":14.197911992236051,"endHours":15.880229775982663,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:47","end":"07:28","startHours":5.786323073503007,"endHours":7.468640857249616,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:23","startHours":8.926649603163344,"endHours":9.375267678829106,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:21","end":"06:42","startHours":6.34709566808521,"endHours":6.705990128617819,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:58","startHours":12.06697613282368,"endHours":12.964212284155206,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:00","end":"04:53","startHours":3.9918507708399567,"endHours":4.889086922171482,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:40","end":"05:47","startHours":4.6647778843386005,"endHours":5.786323073503007,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:39","startHours":14.758684586818255,"endHours":15.65592073814978,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:03","end":"19:27","startHours":19.04486534347588,"endHours":19.44486534347588,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:15","end":"19:48","startHours":19.24486534347588,"endHours":19.805637938058084,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:00","end":"20:45","startHours":18.99486534347588,"endHours":20.74486534347588,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:58","startHours":24.06697613282368,"endHours":24.964212284155206,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:47","end":"07:28","startHours":5.786323073503007,"endHours":7.468640857249616,"quality":"inauspicious"},{"name":"Śubha","start":"07:28","end":"09:09","startHours":7.468640857249616,"endHours":9.150958640996226,"quality":"auspicious"},{"name":"Roga","start":"09:09","end":"10:50","startHours":9.150958640996226,"endHours":10.833276424742834,"quality":"inauspicious"},{"name":"Udveg","start":"10:50","end":"12:31","startHours":10.833276424742834,"endHours":12.515594208489443,"quality":"inauspicious"},{"name":"Chala","start":"12:31","end":"14:12","startHours":12.515594208489443,"endHours":14.197911992236051,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:53","startHours":14.197911992236051,"endHours":15.880229775982663,"quality":"auspicious"},{"name":"Amṛta","start":"15:53","end":"17:34","startHours":15.880229775982663,"endHours":17.56254755972927,"quality":"auspicious"},{"name":"Kāla","start":"17:34","end":"19:15","startHours":17.56254755972927,"endHours":19.24486534347588,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:15","end":"20:34","startHours":19.24486534347588,"endHours":20.56254755972927,"quality":"auspicious"},{"name":"Amṛta","start":"20:34","end":"21:53","startHours":20.56254755972927,"endHours":21.880229775982663,"quality":"auspicious"},{"name":"Kāla","start":"21:53","end":"23:12","startHours":21.880229775982663,"endHours":23.19791199223605,"quality":"inauspicious"},{"name":"Śubha","start":"23:12","end":"00:31","startHours":23.19791199223605,"endHours":24.515594208489443,"quality":"auspicious"},{"name":"Roga","start":"00:31","end":"01:50","startHours":24.515594208489443,"endHours":25.833276424742834,"quality":"inauspicious"},{"name":"Udveg","start":"01:50","end":"03:09","startHours":25.833276424742834,"endHours":27.150958640996222,"quality":"inauspicious"},{"name":"Chala","start":"03:09","end":"04:28","startHours":27.150958640996222,"endHours":28.468640857249614,"quality":"neutral"},{"name":"Labha","start":"04:28","end":"05:47","startHours":28.468640857249614,"endHours":29.786323073503006,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.786323073503007,"endHours":6.786323073503007,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.786323073503007,"endHours":7.786323073503007,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.786323073503007,"endHours":8.786323073503006,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.786323073503006,"endHours":9.786323073503006,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.786323073503006,"endHours":10.786323073503006,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.786323073503006,"endHours":11.786323073503006,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.786323073503006,"endHours":12.786323073503006,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.786323073503006,"endHours":13.786323073503006,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.786323073503006,"endHours":14.786323073503006,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.786323073503006,"endHours":15.786323073503006,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.786323073503006,"endHours":16.786323073503006,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.786323073503006,"endHours":17.786323073503006,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.786323073503006,"endHours":18.786323073503006,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.786323073503006,"endHours":19.786323073503006,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.786323073503006,"endHours":20.786323073503006,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.786323073503006,"endHours":21.786323073503006,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.786323073503006,"endHours":22.786323073503006,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.786323073503006,"endHours":23.786323073503006,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.786323073503006,"endHours":24.786323073503006,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.786323073503006,"endHours":25.786323073503006,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.786323073503006,"endHours":26.786323073503006,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.786323073503006,"endHours":27.786323073503006,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.786323073503006,"endHours":28.786323073503006,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.786323073503006,"endHours":29.786323073503006,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-15.417471612202094,"eotMinutes":-14.37765250936663,"ayanamsa":23.8265}},"calendars":{"vikram_samvat":2055,"vikram_samvatsara":"Khara","saka_samvat":1920,"saka_samvatsara":"Bahudhānya","bengali_samvat":1405,"malayalam_era":1174,"nanakshahi_year":529,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","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 Śukla Ekādaśī · Vikram 2055 Khara · Śaka 1920 Bahudhānya"},"festivals":[{"id":"jaya-ekadashi","name":"Jayā Ekādaśī","name_sanskrit":"जया एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Removes pretatva (ghost-state); grants victory.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Dedicated festival walk for Jayā Ekādaśī · Ekādaśī is not live yet; Śanivāra (Saturday) — 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 February 7, 1998 CE · Perth, Australia · Vidhyamitra","description":"February 7, 1998 CE for Perth, Australia: Śukla Ekādaśī, sūryodaya 05:47, sūryāsta 19:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1998-02-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1998-02-07","sa":"https://sa.vidhyamitra.com/city/perth/1998-02-07","hi":"https://hi.vidhyamitra.com/city/perth/1998-02-07","x-default":"https://vidhyamitra.com/city/perth/1998-02-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-04T09:19:15.743Z","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":"2026-09-04T09:19:15.743Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-04T09:19:15.743Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}