{"id":"vidhyamitra:city-day:perth:1987-01-02:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1987-01-02","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1987-01-02","date_display":"January 2, 1987 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":1987,"month":1,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446797.770833,"kali_year":5088,"ahargana":1858332.2708,"sun":{"sidereal_longitude":257.2287,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":282.7207,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.492,"elapsed_within_tithi_degrees":1.492},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":282.7207,"elapsed_within_degrees":2.7207},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":179.9494},"karana":{"half_tithi_index":4,"name":"Taitila"},"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":1987,"month":1,"day":2,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446797.770833,"ahargana":1858332.2708,"kali_year":5088,"ayanamsa_lahiri":23.6714,"grahas":{"sun":{"sidereal_longitude":257.42458899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":284.5518890000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false,"latitude":-4.323},"mars":{"sidereal_longitude":331.948889,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":251.35168900000008,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":324.77398900000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":211.46378900000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":231.46358899999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":356.6134,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":176.6134,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":1987,"month":1,"day":2,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446797.770833,"kali_year":5088,"ahargana":1858332.2708,"sun":{"sidereal_longitude":257.2287,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":282.7207,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":25.492,"elapsed_within_tithi_degrees":1.492},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1,"moon_longitude":282.7207,"elapsed_within_degrees":2.7207},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":179.9494},"karana":{"half_tithi_index":4,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.323,"elongation":25.492},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.323,"opposition_distance":154.508}},"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":"05:15","sunsetLocal":"19:26","solarNoonLocal":"12:21","dayLengthHours":14.191868367222412,"dayLengthDisplay":"14 Hours 11 Mins 31 Secs","nightLengthDisplay":"9 Hours 48 Mins 29 Secs","moonriseLocal":"07:19","moonsetLocal":"21:00","rahuKala":{"name":"Rāhu Kāla","start":"10:34","end":"12:21","startHours":10.571144955519756,"endHours":12.345128501422558,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:54","end":"17:40","startHours":15.89309559322816,"endHours":17.667079139130962,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:01","end":"08:48","startHours":7.023177863714154,"endHours":8.797161409616955,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:34","end":"09:02","startHours":8.560630270163248,"endHours":9.033692549070663,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:13","startHours":5.84052216644562,"endHours":6.218971989571551,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:49","startHours":11.872066222515144,"endHours":12.81819078032997,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:21","end":"04:18","startHours":3.3569452021816977,"endHours":4.303069759996525,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:04","end":"05:15","startHours":4.0665386205428184,"endHours":5.2491943178113525,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:39","startHours":14.710439895959627,"endHours":15.656564453774456,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.241062685033764,"endHours":19.641062685033763,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:02","startHours":19.441062685033764,"endHours":20.032390533668032,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.191062685033764,"endHours":20.941062685033764,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:49","startHours":23.872066222515144,"endHours":24.81819078032997,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:15","end":"07:01","startHours":5.2491943178113525,"endHours":7.023177863714154,"quality":"neutral"},{"name":"Labha","start":"07:01","end":"08:48","startHours":7.023177863714154,"endHours":8.797161409616955,"quality":"auspicious"},{"name":"Amṛta","start":"08:48","end":"10:34","startHours":8.797161409616955,"endHours":10.571144955519756,"quality":"auspicious"},{"name":"Kāla","start":"10:34","end":"12:21","startHours":10.571144955519756,"endHours":12.345128501422558,"quality":"inauspicious"},{"name":"Śubha","start":"12:21","end":"14:07","startHours":12.345128501422558,"endHours":14.119112047325359,"quality":"auspicious"},{"name":"Roga","start":"14:07","end":"15:54","startHours":14.119112047325359,"endHours":15.89309559322816,"quality":"inauspicious"},{"name":"Udveg","start":"15:54","end":"17:40","startHours":15.89309559322816,"endHours":17.667079139130962,"quality":"inauspicious"},{"name":"Chala","start":"17:40","end":"19:26","startHours":17.667079139130962,"endHours":19.441062685033764,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:26","end":"20:40","startHours":19.441062685033764,"endHours":20.667079139130962,"quality":"inauspicious"},{"name":"Udveg","start":"20:40","end":"21:54","startHours":20.667079139130962,"endHours":21.89309559322816,"quality":"inauspicious"},{"name":"Chala","start":"21:54","end":"23:07","startHours":21.89309559322816,"endHours":23.11911204732536,"quality":"neutral"},{"name":"Labha","start":"23:07","end":"00:21","startHours":23.11911204732536,"endHours":24.345128501422558,"quality":"auspicious"},{"name":"Amṛta","start":"00:21","end":"01:34","startHours":24.345128501422558,"endHours":25.571144955519756,"quality":"auspicious"},{"name":"Kāla","start":"01:34","end":"02:48","startHours":25.571144955519756,"endHours":26.797161409616955,"quality":"inauspicious"},{"name":"Śubha","start":"02:48","end":"04:01","startHours":26.797161409616955,"endHours":28.023177863714153,"quality":"auspicious"},{"name":"Roga","start":"04:01","end":"05:15","startHours":28.023177863714153,"endHours":29.24919431781135,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:15","end":"06:15","startHours":5.2491943178113525,"endHours":6.2491943178113525,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:15","end":"07:15","startHours":6.2491943178113525,"endHours":7.2491943178113525,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:15","end":"08:15","startHours":7.2491943178113525,"endHours":8.249194317811352,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:15","end":"09:15","startHours":8.249194317811352,"endHours":9.249194317811352,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:15","end":"10:15","startHours":9.249194317811352,"endHours":10.249194317811352,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:15","end":"11:15","startHours":10.249194317811352,"endHours":11.249194317811352,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:15","end":"12:15","startHours":11.249194317811352,"endHours":12.249194317811352,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:15","end":"13:15","startHours":12.249194317811352,"endHours":13.249194317811352,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:15","end":"14:15","startHours":13.249194317811352,"endHours":14.249194317811352,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:15","end":"15:15","startHours":14.249194317811352,"endHours":15.249194317811352,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:15","end":"16:15","startHours":15.249194317811352,"endHours":16.24919431781135,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:15","end":"17:15","startHours":16.24919431781135,"endHours":17.24919431781135,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:15","end":"18:15","startHours":17.24919431781135,"endHours":18.24919431781135,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:15","end":"19:15","startHours":18.24919431781135,"endHours":19.24919431781135,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:15","end":"20:15","startHours":19.24919431781135,"endHours":20.24919431781135,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:15","end":"21:15","startHours":20.24919431781135,"endHours":21.24919431781135,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:15","end":"22:15","startHours":21.24919431781135,"endHours":22.24919431781135,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:15","end":"23:15","startHours":22.24919431781135,"endHours":23.24919431781135,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:15","end":"00:15","startHours":23.24919431781135,"endHours":24.24919431781135,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:15","end":"01:15","startHours":24.24919431781135,"endHours":25.24919431781135,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:15","end":"02:15","startHours":25.24919431781135,"endHours":26.24919431781135,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:15","end":"03:15","startHours":26.24919431781135,"endHours":27.24919431781135,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:15","end":"04:15","startHours":27.24919431781135,"endHours":28.24919431781135,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:15","end":"05:15","startHours":28.24919431781135,"endHours":29.24919431781135,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Padma","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":-22.97299990297144,"eotMinutes":-4.149710085353452,"ayanamsa":23.6714}},"calendars":{"vikram_samvat":2044,"vikram_samvatsara":"Vikrama","saka_samvat":1909,"saka_samvatsara":"Prabhava","bengali_samvat":1394,"malayalam_era":1163,"nanakshahi_year":518,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","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 Śukla Tṛtīyā · Vikram 2044 Vikrama · Śaka 1909 Prabhava"},"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":"perth"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 2, 1987 CE · Perth, Australia · Vidhyamitra","description":"January 2, 1987 CE for Perth, Australia: Śukla Tṛtīyā, sūryodaya 05:15, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1987-01-02","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1987-01-02","sa":"https://sa.vidhyamitra.com/city/perth/1987-01-02","hi":"https://hi.vidhyamitra.com/city/perth/1987-01-02","x-default":"https://vidhyamitra.com/city/perth/1987-01-02"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T08:24:01.430Z","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":"2026-09-06T08:24:01.430Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T08:24:01.430Z","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"}}}