{"id":"vidhyamitra:city-day:perth:2107-02-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2107-02-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2107-02-15","date_display":"February 15, 2107 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":2107,"month":2,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490670.770833,"kali_year":5208,"ahargana":1902205.2708,"sun":{"sidereal_longitude":300.1865,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":210.4426,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.2561,"elapsed_within_tithi_degrees":6.2561},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.4426,"elapsed_within_degrees":10.4426},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.6291},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2107,"month":2,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2490670.770833,"ahargana":1902205.2708,"kali_year":5208,"ayanamsa_lahiri":25.3494,"grahas":{"sun":{"sidereal_longitude":300.34741800000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":213.40141799999992,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false,"latitude":1.4215},"mars":{"sidereal_longitude":307.47751800000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":276.57851800000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":12.425518000000011,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":260.16491799999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":257.43261800000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":192.0107,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":12.0107,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":2107,"month":2,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2490670.770833,"kali_year":5208,"ahargana":1902205.2708,"sun":{"sidereal_longitude":300.1865,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":210.4426,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":270.2561,"elapsed_within_tithi_degrees":6.2561},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.4426,"elapsed_within_degrees":10.4426},"yoga":{"number":12,"name":"Dhruva","sum_longitude":150.6291},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.421,"elongation":89.744},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.421,"opposition_distance":90.256}},"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":"05:54","sunsetLocal":"19:08","solarNoonLocal":"12:31","dayLengthHours":13.235535258431451,"dayLengthDisplay":"13 Hours 14 Mins 08 Secs","nightLengthDisplay":"10 Hours 45 Mins 52 Secs","moonriseLocal":"23:48","moonsetLocal":"13:38","rahuKala":{"name":"Rāhu Kāla","start":"15:50","end":"17:29","startHours":15.827701498731194,"endHours":17.482143406035128,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:13","end":"10:52","startHours":9.20993386951547,"endHours":10.8643757768194,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:31","end":"14:10","startHours":12.518817684123333,"endHours":14.173259591427264,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:26","startHours":8.989341615208279,"endHours":9.430526123822661,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:27","end":"06:48","startHours":6.452530690675584,"endHours":6.805478297567089,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:58","startHours":12.07763317550895,"endHours":12.960002192737715,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:08","end":"05:01","startHours":4.13631202045008,"endHours":5.018681037678844,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:48","end":"05:54","startHours":4.798088783371653,"endHours":5.901050054907607,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:43","end":"15:36","startHours":14.724740227195241,"endHours":15.607109244424004,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:56","end":"19:20","startHours":18.93658531333906,"endHours":19.336585313339057,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:08","end":"19:41","startHours":19.136585313339058,"endHours":19.688065949107035,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:53","end":"20:38","startHours":18.886585313339058,"endHours":20.636585313339058,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:58","startHours":24.077633175508954,"endHours":24.960002192737715,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:54","end":"07:33","startHours":5.901050054907607,"endHours":7.555491962211539,"quality":"inauspicious"},{"name":"Udveg","start":"07:33","end":"09:13","startHours":7.555491962211539,"endHours":9.20993386951547,"quality":"inauspicious"},{"name":"Chala","start":"09:13","end":"10:52","startHours":9.20993386951547,"endHours":10.8643757768194,"quality":"neutral"},{"name":"Labha","start":"10:52","end":"12:31","startHours":10.8643757768194,"endHours":12.518817684123333,"quality":"auspicious"},{"name":"Amṛta","start":"12:31","end":"14:10","startHours":12.518817684123333,"endHours":14.173259591427264,"quality":"auspicious"},{"name":"Kāla","start":"14:10","end":"15:50","startHours":14.173259591427264,"endHours":15.827701498731194,"quality":"inauspicious"},{"name":"Śubha","start":"15:50","end":"17:29","startHours":15.827701498731194,"endHours":17.482143406035128,"quality":"auspicious"},{"name":"Roga","start":"17:29","end":"19:08","startHours":17.482143406035128,"endHours":19.136585313339058,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:08","end":"20:29","startHours":19.136585313339058,"endHours":20.482143406035128,"quality":"inauspicious"},{"name":"Śubha","start":"20:29","end":"21:50","startHours":20.482143406035128,"endHours":21.827701498731194,"quality":"auspicious"},{"name":"Roga","start":"21:50","end":"23:10","startHours":21.827701498731194,"endHours":23.173259591427264,"quality":"inauspicious"},{"name":"Udveg","start":"23:10","end":"00:31","startHours":23.173259591427264,"endHours":24.518817684123334,"quality":"inauspicious"},{"name":"Chala","start":"00:31","end":"01:52","startHours":24.518817684123334,"endHours":25.8643757768194,"quality":"neutral"},{"name":"Labha","start":"01:52","end":"03:13","startHours":25.8643757768194,"endHours":27.20993386951547,"quality":"auspicious"},{"name":"Amṛta","start":"03:13","end":"04:33","startHours":27.20993386951547,"endHours":28.55549196221154,"quality":"auspicious"},{"name":"Kāla","start":"04:33","end":"05:54","startHours":28.55549196221154,"endHours":29.901050054907607,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.901050054907607,"endHours":6.901050054907607,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.901050054907607,"endHours":7.901050054907607,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.901050054907607,"endHours":8.901050054907607,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.901050054907607,"endHours":9.901050054907607,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.901050054907607,"endHours":10.901050054907607,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.901050054907607,"endHours":11.901050054907607,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.901050054907607,"endHours":12.901050054907607,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.901050054907607,"endHours":13.901050054907607,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.901050054907607,"endHours":14.901050054907607,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.901050054907607,"endHours":15.901050054907607,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.901050054907607,"endHours":16.901050054907607,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.901050054907607,"endHours":17.901050054907607,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.901050054907607,"endHours":18.901050054907607,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.901050054907607,"endHours":19.901050054907607,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.901050054907607,"endHours":20.901050054907607,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.901050054907607,"endHours":21.901050054907607,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.901050054907607,"endHours":22.901050054907607,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.901050054907607,"endHours":23.901050054907607,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.901050054907607,"endHours":24.901050054907607,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.901050054907607,"endHours":25.901050054907607,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.901050054907607,"endHours":26.901050054907607,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.901050054907607,"endHours":27.901050054907607,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.901050054907607,"endHours":28.901050054907607,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.901050054907607,"endHours":29.901050054907607,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva 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":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-12.952950088317031,"eotMinutes":-14.571061047399978,"ayanamsa":25.3494}},"calendars":{"vikram_samvat":2164,"vikram_samvatsara":"Vikrama","saka_samvat":2029,"saka_samvatsara":"Prabhava","bengali_samvat":1514,"malayalam_era":1283,"nanakshahi_year":638,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Aṣṭamī · Vikram 2164 Vikrama · Śaka 2029 Prabhava"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3},{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi_ingress":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 February 15, 2107 CE · Perth, Australia · Vidhyamitra","description":"February 15, 2107 CE for Perth, Australia: Kṛṣṇa Aṣṭamī, sūryodaya 05:54, sūryāsta 19:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2107-02-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2107-02-15","sa":"https://sa.vidhyamitra.com/city/perth/2107-02-15","hi":"https://hi.vidhyamitra.com/city/perth/2107-02-15","x-default":"https://vidhyamitra.com/city/perth/2107-02-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T23:29:41.161Z","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":"2026-06-01T23:29:41.161Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T23:29:41.161Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}