{"id":"vidhyamitra:city-day:perth:2030-02-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2030-02-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2030-02-13","date_display":"February 13, 2030 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":2030,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462545.770833,"kali_year":5131,"ahargana":1874080.2708,"sun":{"sidereal_longitude":300.1095,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":57.8762,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":117.7668,"elapsed_within_tithi_degrees":9.7668},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":57.8762,"elapsed_within_degrees":4.5429},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.9857},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2030,"month":2,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462545.770833,"ahargana":1874080.2708,"kali_year":5131,"ayanamsa_lahiri":24.2737,"grahas":{"sun":{"sidereal_longitude":300.09220000000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":57.800099999999986,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":0.3396},"mars":{"sidereal_longitude":323.84619999999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":281.9919,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":212.18380000000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":16,"name":"Viśākhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":258.99080000000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":24.312599999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":242.2085,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":62.2085,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"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":2030,"month":2,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462545.770833,"kali_year":5131,"ahargana":1874080.2708,"sun":{"sidereal_longitude":300.1095,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":57.8762,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":10,"name":"Daśamī","paksha":"Śukla","full_name":"Śukla Daśamī","elongation_degrees":117.7668,"elapsed_within_tithi_degrees":9.7668},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2,"moon_longitude":57.8762,"elapsed_within_degrees":4.5429},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":357.9857},"karana":{"half_tithi_index":19,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.34,"elongation":117.767},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.34,"opposition_distance":62.233}},"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":"05:53","sunsetLocal":"19:09","solarNoonLocal":"12:31","dayLengthHours":13.275393639644307,"dayLengthDisplay":"13 Hours 16 Mins 31 Secs","nightLengthDisplay":"10 Hours 43 Mins 29 Secs","moonriseLocal":"15:21","moonsetLocal":"01:23","rahuKala":{"name":"Rāhu Kāla","start":"12:31","end":"14:11","startHours":12.519292087677034,"endHours":14.178716292632572,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:32","end":"09:12","startHours":7.541019472810419,"endHours":9.200443677765957,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:52","end":"12:31","startHours":10.859867882721495,"endHours":12.519292087677034,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:59","end":"09:25","startHours":8.97918711710522,"endHours":9.421700238426695,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:47","startHours":6.4347366695067265,"endHours":6.788747166563908,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:58","startHours":12.076778966355556,"endHours":12.961805208998511,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:07","end":"05:00","startHours":4.111542782568973,"endHours":4.996569025211927,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:53","startHours":4.775312464551188,"endHours":5.88159526785488,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:37","startHours":14.731857694284418,"endHours":15.616883936927373,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:57","end":"19:21","startHours":18.956988907499188,"endHours":19.356988907499186,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:09","end":"19:43","startHours":19.156988907499187,"endHours":19.710130309151033,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:54","end":"20:39","startHours":18.906988907499187,"endHours":20.656988907499187,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:58","startHours":24.07677896635556,"endHours":24.96180520899851,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:53","end":"07:32","startHours":5.88159526785488,"endHours":7.541019472810419,"quality":"auspicious"},{"name":"Amṛta","start":"07:32","end":"09:12","startHours":7.541019472810419,"endHours":9.200443677765957,"quality":"auspicious"},{"name":"Kāla","start":"09:12","end":"10:52","startHours":9.200443677765957,"endHours":10.859867882721495,"quality":"inauspicious"},{"name":"Śubha","start":"10:52","end":"12:31","startHours":10.859867882721495,"endHours":12.519292087677034,"quality":"auspicious"},{"name":"Roga","start":"12:31","end":"14:11","startHours":12.519292087677034,"endHours":14.178716292632572,"quality":"inauspicious"},{"name":"Udveg","start":"14:11","end":"15:50","startHours":14.178716292632572,"endHours":15.83814049758811,"quality":"inauspicious"},{"name":"Chala","start":"15:50","end":"17:30","startHours":15.83814049758811,"endHours":17.49756470254365,"quality":"neutral"},{"name":"Labha","start":"17:30","end":"19:09","startHours":17.49756470254365,"endHours":19.156988907499187,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:09","end":"20:30","startHours":19.156988907499187,"endHours":20.49756470254365,"quality":"inauspicious"},{"name":"Chala","start":"20:30","end":"21:50","startHours":20.49756470254365,"endHours":21.83814049758811,"quality":"neutral"},{"name":"Labha","start":"21:50","end":"23:11","startHours":21.83814049758811,"endHours":23.178716292632572,"quality":"auspicious"},{"name":"Amṛta","start":"23:11","end":"00:31","startHours":23.178716292632572,"endHours":24.519292087677034,"quality":"auspicious"},{"name":"Kāla","start":"00:31","end":"01:52","startHours":24.519292087677034,"endHours":25.859867882721495,"quality":"inauspicious"},{"name":"Śubha","start":"01:52","end":"03:12","startHours":25.859867882721495,"endHours":27.200443677765957,"quality":"auspicious"},{"name":"Roga","start":"03:12","end":"04:32","startHours":27.200443677765957,"endHours":28.54101947281042,"quality":"inauspicious"},{"name":"Udveg","start":"04:32","end":"05:53","startHours":28.54101947281042,"endHours":29.88159526785488,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.88159526785488,"endHours":6.88159526785488,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.88159526785488,"endHours":7.88159526785488,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.88159526785488,"endHours":8.88159526785488,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.88159526785488,"endHours":9.88159526785488,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.88159526785488,"endHours":10.88159526785488,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.88159526785488,"endHours":11.88159526785488,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.88159526785488,"endHours":12.88159526785488,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.88159526785488,"endHours":13.88159526785488,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.88159526785488,"endHours":14.88159526785488,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.88159526785488,"endHours":15.88159526785488,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.88159526785488,"endHours":16.88159526785488,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.88159526785488,"endHours":17.88159526785488,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.88159526785488,"endHours":18.88159526785488,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.88159526785488,"endHours":19.88159526785488,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.88159526785488,"endHours":20.88159526785488,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.88159526785488,"endHours":21.88159526785488,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.88159526785488,"endHours":22.88159526785488,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.88159526785488,"endHours":23.88159526785488,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.88159526785488,"endHours":24.88159526785488,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.88159526785488,"endHours":25.88159526785488,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.88159526785488,"endHours":26.88159526785488,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.88159526785488,"endHours":27.88159526785488,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.88159526785488,"endHours":28.88159526785488,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.88159526785488,"endHours":29.88159526785488,"planetary_lord":"Sun"}],"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":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"South-West","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-13.398452658448807,"eotMinutes":-14.599525260622107,"ayanamsa":24.2737}},"calendars":{"vikram_samvat":2087,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1952,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1437,"malayalam_era":1206,"nanakshahi_year":561,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Daśamī · Vikram 2087 Rudhirodgāri · Śaka 1952 Sādhāraṇa"},"festivals":[{"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":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 13, 2030 CE · Perth, Australia · Vidhyamitra","description":"February 13, 2030 CE for Perth, Australia: Śukla Daśamī, sūryodaya 05:53, sūryāsta 19:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2030-02-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2030-02-13","sa":"https://sa.vidhyamitra.com/city/perth/2030-02-13","hi":"https://hi.vidhyamitra.com/city/perth/2030-02-13","x-default":"https://vidhyamitra.com/city/perth/2030-02-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T04:04:54.782Z","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":"2026-05-15T04:04:54.782Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T04:04:54.782Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}