{"id":"vidhyamitra:city-day:perth:2170-02-05:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2170-02-05","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-02-05","date_display":"February 5, 2170 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":2170,"month":2,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513671.770833,"kali_year":5271,"ahargana":1925206.2708,"sun":{"sidereal_longitude":289.6912,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":156.3359,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.6447,"elapsed_within_tithi_degrees":10.6447},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":156.3359,"elapsed_within_degrees":9.6693},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.0272},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":2170,"month":2,"day":5,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513671.770833,"ahargana":1925206.2708,"kali_year":5271,"ayanamsa_lahiri":26.2291,"grahas":{"sun":{"sidereal_longitude":290.060211,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"moon":{"sidereal_longitude":160.21981099999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":4.3839},"mars":{"sidereal_longitude":149.80231100000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":287.67001100000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":138.82561099999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":305.497711,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":297.78911100000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":53.307,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":233.307,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":2170,"month":2,"day":5,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513671.770833,"kali_year":5271,"ahargana":1925206.2708,"sun":{"sidereal_longitude":289.6912,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":156.3359,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.6447,"elapsed_within_tithi_degrees":10.6447},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":156.3359,"elapsed_within_degrees":9.6693},"yoga":{"number":7,"name":"Sukarma","sum_longitude":86.0272},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.384,"elongation":133.355},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.384,"opposition_distance":46.645}},"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":"05:46","sunsetLocal":"19:16","solarNoonLocal":"12:31","dayLengthHours":13.507822160020979,"dayLengthDisplay":"13 Hours 30 Mins 28 Secs","nightLengthDisplay":"10 Hours 29 Mins 32 Secs","moonriseLocal":"21:42","moonsetLocal":"10:01","rahuKala":{"name":"Rāhu Kāla","start":"07:27","end":"09:08","startHours":7.447200327006594,"endHours":9.135678097009215,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:31","startHours":10.82415586701184,"endHours":12.51263363701446,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:12","end":"15:53","startHours":14.201111407017084,"endHours":15.889589177019705,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:22","startHours":8.910547727675533,"endHours":9.360808466342899,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:41","startHours":6.321548480338179,"endHours":6.681757071272072,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:58","startHours":12.062372898347094,"endHours":12.962894375681826,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:57","end":"04:51","startHours":3.9576796023345078,"endHours":4.858201079669239,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:38","end":"05:46","startHours":4.633070710335557,"endHours":5.7587225570039715,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:40","startHours":14.76393733035129,"endHours":15.664458807686021,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:04","end":"19:28","startHours":19.06654471702495,"endHours":19.46654471702495,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:16","end":"19:50","startHours":19.26654471702495,"endHours":19.82937064035916,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:01","end":"20:46","startHours":19.01654471702495,"endHours":20.76654471702495,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:58","startHours":24.062372898347093,"endHours":24.962894375681827,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:46","end":"07:27","startHours":5.7587225570039715,"endHours":7.447200327006594,"quality":"auspicious"},{"name":"Kāla","start":"07:27","end":"09:08","startHours":7.447200327006594,"endHours":9.135678097009215,"quality":"inauspicious"},{"name":"Śubha","start":"09:08","end":"10:49","startHours":9.135678097009215,"endHours":10.82415586701184,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:31","startHours":10.82415586701184,"endHours":12.51263363701446,"quality":"inauspicious"},{"name":"Udveg","start":"12:31","end":"14:12","startHours":12.51263363701446,"endHours":14.201111407017084,"quality":"inauspicious"},{"name":"Chala","start":"14:12","end":"15:53","startHours":14.201111407017084,"endHours":15.889589177019705,"quality":"neutral"},{"name":"Labha","start":"15:53","end":"17:35","startHours":15.889589177019705,"endHours":17.57806694702233,"quality":"auspicious"},{"name":"Amṛta","start":"17:35","end":"19:16","startHours":17.57806694702233,"endHours":19.26654471702495,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:16","end":"20:35","startHours":19.26654471702495,"endHours":20.57806694702233,"quality":"neutral"},{"name":"Labha","start":"20:35","end":"21:53","startHours":20.57806694702233,"endHours":21.889589177019705,"quality":"auspicious"},{"name":"Amṛta","start":"21:53","end":"23:12","startHours":21.889589177019705,"endHours":23.20111140701708,"quality":"auspicious"},{"name":"Kāla","start":"23:12","end":"00:31","startHours":23.20111140701708,"endHours":24.51263363701446,"quality":"inauspicious"},{"name":"Śubha","start":"00:31","end":"01:49","startHours":24.51263363701446,"endHours":25.82415586701184,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:08","startHours":25.82415586701184,"endHours":27.135678097009215,"quality":"inauspicious"},{"name":"Udveg","start":"03:08","end":"04:27","startHours":27.135678097009215,"endHours":28.44720032700659,"quality":"inauspicious"},{"name":"Chala","start":"04:27","end":"05:46","startHours":28.44720032700659,"endHours":29.75872255700397,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:46","end":"06:46","startHours":5.7587225570039715,"endHours":6.7587225570039715,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:46","end":"07:46","startHours":6.7587225570039715,"endHours":7.7587225570039715,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:46","end":"08:46","startHours":7.7587225570039715,"endHours":8.75872255700397,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:46","end":"09:46","startHours":8.75872255700397,"endHours":9.75872255700397,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:46","end":"10:46","startHours":9.75872255700397,"endHours":10.75872255700397,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:46","end":"11:46","startHours":10.75872255700397,"endHours":11.75872255700397,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:46","end":"12:46","startHours":11.75872255700397,"endHours":12.75872255700397,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:46","end":"13:46","startHours":12.75872255700397,"endHours":13.75872255700397,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:46","end":"14:46","startHours":13.75872255700397,"endHours":14.75872255700397,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:46","end":"15:46","startHours":14.75872255700397,"endHours":15.75872255700397,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:46","end":"16:46","startHours":15.75872255700397,"endHours":16.75872255700397,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:46","end":"17:46","startHours":16.75872255700397,"endHours":17.75872255700397,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:46","end":"18:46","startHours":17.75872255700397,"endHours":18.75872255700397,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:46","end":"19:46","startHours":18.75872255700397,"endHours":19.75872255700397,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:46","end":"20:46","startHours":19.75872255700397,"endHours":20.75872255700397,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:46","end":"21:46","startHours":20.75872255700397,"endHours":21.75872255700397,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:46","end":"22:46","startHours":21.75872255700397,"endHours":22.75872255700397,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:46","end":"23:46","startHours":22.75872255700397,"endHours":23.75872255700397,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:46","end":"00:46","startHours":23.75872255700397,"endHours":24.75872255700397,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:46","end":"01:46","startHours":24.75872255700397,"endHours":25.75872255700397,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:46","end":"02:46","startHours":25.75872255700397,"endHours":26.75872255700397,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:46","end":"03:46","startHours":26.75872255700397,"endHours":27.75872255700397,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:46","end":"04:46","startHours":27.75872255700397,"endHours":28.75872255700397,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:46","end":"05:46","startHours":28.75872255700397,"endHours":29.75872255700397,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-15.9524795155565,"eotMinutes":-14.200018220867548,"ayanamsa":26.2291}},"calendars":{"vikram_samvat":2227,"vikram_samvatsara":"Subhānu","saka_samvat":2092,"saka_samvatsara":"Pramoda","bengali_samvat":1577,"malayalam_era":1346,"nanakshahi_year":701,"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":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Caturthī · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[]},"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 5, 2170 CE · Perth, Australia · Vidhyamitra","description":"February 5, 2170 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 05:46, sūryāsta 19:16.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2170-02-05","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2170-02-05","sa":"https://sa.vidhyamitra.com/city/perth/2170-02-05","hi":"https://hi.vidhyamitra.com/city/perth/2170-02-05","x-default":"https://vidhyamitra.com/city/perth/2170-02-05"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:37:34.518Z","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":"2026-05-31T14:37:34.518Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:37:34.518Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}