{"id":"vidhyamitra:city-day:perth:2170-02-28:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2170-02-28","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-02-28","date_display":"February 28, 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":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513694.770833,"kali_year":5271,"ahargana":1925229.2708,"sun":{"sidereal_longitude":313.0459,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":94.5439,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":141.4979,"elapsed_within_tithi_degrees":9.4979},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.5439,"elapsed_within_degrees":1.2105},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.5898},"karana":{"half_tithi_index":23,"name":"Bālava"},"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":2170,"month":2,"day":28,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513694.770833,"ahargana":1925229.2708,"kali_year":5271,"ayanamsa_lahiri":26.23,"grahas":{"sun":{"sidereal_longitude":313.29893200000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":93.11093199999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false,"latitude":3.0359},"mars":{"sidereal_longitude":144.458932,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":327.9649320000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":136.14503200000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":true},"venus":{"sidereal_longitude":334.096332,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":300.557632,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":52.0884,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":232.0884,"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":28,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513694.770833,"kali_year":5271,"ahargana":1925229.2708,"sun":{"sidereal_longitude":313.0459,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":94.5439,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":141.4979,"elapsed_within_tithi_degrees":9.4979},"nakshatra":{"number":8,"name":"Puṣya","pada":1,"moon_longitude":94.5439,"elapsed_within_degrees":1.2105},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":47.5898},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.036,"elongation":141.498},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.036,"opposition_distance":38.502}},"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":"06:06","sunsetLocal":"18:54","solarNoonLocal":"12:30","dayLengthHours":12.802903049466163,"dayLengthDisplay":"12 Hours 48 Mins 10 Secs","nightLengthDisplay":"11 Hours 11 Mins 50 Secs","moonriseLocal":"16:39","moonsetLocal":"02:59","rahuKala":{"name":"Rāhu Kāla","start":"12:30","end":"14:06","startHours":12.496350980433789,"endHours":14.096713861617062,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:42","end":"09:18","startHours":7.695262336883978,"endHours":9.295625218067249,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:54","end":"12:30","startHours":10.89598809925052,"endHours":12.496350980433789,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:31","startHours":9.082243500576146,"endHours":9.509006935558352,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.628353749428465,"endHours":6.969764497414229,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:55","startHours":12.069587545451585,"endHours":12.923114415415997,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:23","end":"05:14","startHours":4.387845715771887,"endHours":5.241372585736297,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:02","end":"06:06","startHours":5.027990868245195,"endHours":6.094899455700708,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:38","end":"15:29","startHours":14.630168155344816,"endHours":15.483695025309226,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:42","end":"19:06","startHours":18.697802505166873,"endHours":19.09780250516687,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:54","end":"19:26","startHours":18.897802505166872,"endHours":19.43125679889463,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:39","end":"20:24","startHours":18.647802505166872,"endHours":20.397802505166872,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:55","startHours":24.069587545451583,"endHours":24.923114415415995,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:06","end":"07:42","startHours":6.094899455700708,"endHours":7.695262336883978,"quality":"auspicious"},{"name":"Amṛta","start":"07:42","end":"09:18","startHours":7.695262336883978,"endHours":9.295625218067249,"quality":"auspicious"},{"name":"Kāla","start":"09:18","end":"10:54","startHours":9.295625218067249,"endHours":10.89598809925052,"quality":"inauspicious"},{"name":"Śubha","start":"10:54","end":"12:30","startHours":10.89598809925052,"endHours":12.496350980433789,"quality":"auspicious"},{"name":"Roga","start":"12:30","end":"14:06","startHours":12.496350980433789,"endHours":14.096713861617062,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:42","startHours":14.096713861617062,"endHours":15.69707674280033,"quality":"inauspicious"},{"name":"Chala","start":"15:42","end":"17:18","startHours":15.69707674280033,"endHours":17.2974396239836,"quality":"neutral"},{"name":"Labha","start":"17:18","end":"18:54","startHours":17.2974396239836,"endHours":18.897802505166872,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:54","end":"20:18","startHours":18.897802505166872,"endHours":20.297439623983603,"quality":"inauspicious"},{"name":"Chala","start":"20:18","end":"21:42","startHours":20.297439623983603,"endHours":21.69707674280033,"quality":"neutral"},{"name":"Labha","start":"21:42","end":"23:06","startHours":21.69707674280033,"endHours":23.09671386161706,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:30","startHours":23.09671386161706,"endHours":24.49635098043379,"quality":"auspicious"},{"name":"Kāla","start":"00:30","end":"01:54","startHours":24.49635098043379,"endHours":25.89598809925052,"quality":"inauspicious"},{"name":"Śubha","start":"01:54","end":"03:18","startHours":25.89598809925052,"endHours":27.29562521806725,"quality":"auspicious"},{"name":"Roga","start":"03:18","end":"04:42","startHours":27.29562521806725,"endHours":28.695262336883978,"quality":"inauspicious"},{"name":"Udveg","start":"04:42","end":"06:06","startHours":28.695262336883978,"endHours":30.09489945570071,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.094899455700708,"endHours":7.094899455700708,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.094899455700708,"endHours":8.094899455700709,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.094899455700709,"endHours":9.094899455700709,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.094899455700709,"endHours":10.094899455700709,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.094899455700709,"endHours":11.094899455700709,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.094899455700709,"endHours":12.094899455700709,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.094899455700709,"endHours":13.094899455700709,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.094899455700709,"endHours":14.094899455700709,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.094899455700709,"endHours":15.094899455700709,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.094899455700709,"endHours":16.09489945570071,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.09489945570071,"endHours":17.09489945570071,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.09489945570071,"endHours":18.09489945570071,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.09489945570071,"endHours":19.09489945570071,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.09489945570071,"endHours":20.09489945570071,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.09489945570071,"endHours":21.09489945570071,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.09489945570071,"endHours":22.09489945570071,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.09489945570071,"endHours":23.09489945570071,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.09489945570071,"endHours":24.09489945570071,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.09489945570071,"endHours":25.09489945570071,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.09489945570071,"endHours":26.09489945570071,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.09489945570071,"endHours":27.09489945570071,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.09489945570071,"endHours":28.09489945570071,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.09489945570071,"endHours":29.09489945570071,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.09489945570071,"endHours":30.09489945570071,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-7.995811339090742,"eotMinutes":-13.223058826027486,"ayanamsa":26.23}},"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 Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","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 Śukla Dvādaśī · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[],"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 28, 2170 CE · Perth, Australia · Vidhyamitra","description":"February 28, 2170 CE for Perth, Australia: Śukla Dvādaśī, sūryodaya 06:06, sūryāsta 18:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2170-02-28","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2170-02-28","sa":"https://sa.vidhyamitra.com/city/perth/2170-02-28","hi":"https://hi.vidhyamitra.com/city/perth/2170-02-28","x-default":"https://vidhyamitra.com/city/perth/2170-02-28"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T23:07:11.613Z","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":"2026-05-30T23:07:11.613Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T23:07:11.613Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}