{"id":"vidhyamitra:city-day:perth:1875-02-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1875-02-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1875-02-21","date_display":"February 21, 1875 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":1875,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2405940.770833,"kali_year":4976,"ahargana":1817475.2708,"sun":{"sidereal_longitude":310.3531,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":140.5479,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.1948,"elapsed_within_tithi_degrees":10.1948},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.5479,"elapsed_within_degrees":7.2145},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.901},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1875,"month":2,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2405940.770833,"ahargana":1817475.2708,"kali_year":4976,"ayanamsa_lahiri":22.1088,"grahas":{"sun":{"sidereal_longitude":309.931427,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":138.262627,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":2.9426},"mars":{"sidereal_longitude":224.30012699999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":326.39082699999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":190.82532700000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":264.88672700000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":297.51722700000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":1.4138,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":181.4138,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","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":1875,"month":2,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2405940.770833,"kali_year":4976,"ahargana":1817475.2708,"sun":{"sidereal_longitude":310.3531,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":140.5479,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.1948,"elapsed_within_tithi_degrees":10.1948},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3,"moon_longitude":140.5479,"elapsed_within_degrees":7.2145},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.901},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.943,"elongation":169.805},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.943,"opposition_distance":10.195}},"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":"06:00","sunsetLocal":"19:02","solarNoonLocal":"12:31","dayLengthHours":13.040776210065236,"dayLengthDisplay":"13 Hours 02 Mins 27 Secs","nightLengthDisplay":"10 Hours 57 Mins 33 Secs","moonriseLocal":"19:21","moonsetLocal":"06:48","rahuKala":{"name":"Rāhu Kāla","start":"17:24","end":"19:02","startHours":17.40275511779507,"endHours":19.032852144053223,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:31","end":"14:09","startHours":12.512464039020607,"endHours":14.142561065278759,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:46","end":"17:24","startHours":15.772658091536915,"endHours":17.40275511779507,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:28","startHours":9.034923716336543,"endHours":9.469616256672051,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:32","end":"06:53","startHours":6.535441609407373,"endHours":6.88319564167578,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:05","end":"12:57","startHours":12.077771498685097,"endHours":12.947156579356113,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:15","end":"05:07","startHours":4.253305772645957,"endHours":5.122690853316972,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:54","end":"06:00","startHours":4.905344583149218,"endHours":5.992075933987988,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:41","end":"15:33","startHours":14.685926740698147,"endHours":15.555311821369163,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:50","end":"19:14","startHours":18.832852144053223,"endHours":19.232852144053222,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:02","end":"19:35","startHours":19.032852144053223,"endHours":19.576217819472607,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:47","end":"20:32","startHours":18.782852144053223,"endHours":20.532852144053223,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:05","end":"00:57","startHours":24.0777714986851,"endHours":24.947156579356115,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:00","end":"07:37","startHours":5.992075933987988,"endHours":7.622172960246143,"quality":"inauspicious"},{"name":"Chala","start":"07:37","end":"09:15","startHours":7.622172960246143,"endHours":9.252269986504297,"quality":"neutral"},{"name":"Labha","start":"09:15","end":"10:53","startHours":9.252269986504297,"endHours":10.882367012762451,"quality":"auspicious"},{"name":"Amṛta","start":"10:53","end":"12:31","startHours":10.882367012762451,"endHours":12.512464039020607,"quality":"auspicious"},{"name":"Kāla","start":"12:31","end":"14:09","startHours":12.512464039020607,"endHours":14.142561065278759,"quality":"inauspicious"},{"name":"Śubha","start":"14:09","end":"15:46","startHours":14.142561065278759,"endHours":15.772658091536915,"quality":"auspicious"},{"name":"Roga","start":"15:46","end":"17:24","startHours":15.772658091536915,"endHours":17.40275511779507,"quality":"inauspicious"},{"name":"Udveg","start":"17:24","end":"19:02","startHours":17.40275511779507,"endHours":19.032852144053223,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:02","end":"20:24","startHours":19.032852144053223,"endHours":20.402755117795067,"quality":"auspicious"},{"name":"Roga","start":"20:24","end":"21:46","startHours":20.402755117795067,"endHours":21.772658091536915,"quality":"inauspicious"},{"name":"Udveg","start":"21:46","end":"23:09","startHours":21.772658091536915,"endHours":23.14256106527876,"quality":"inauspicious"},{"name":"Chala","start":"23:09","end":"00:31","startHours":23.14256106527876,"endHours":24.512464039020607,"quality":"neutral"},{"name":"Labha","start":"00:31","end":"01:53","startHours":24.512464039020607,"endHours":25.88236701276245,"quality":"auspicious"},{"name":"Amṛta","start":"01:53","end":"03:15","startHours":25.88236701276245,"endHours":27.252269986504295,"quality":"auspicious"},{"name":"Kāla","start":"03:15","end":"04:37","startHours":27.252269986504295,"endHours":28.62217296024614,"quality":"inauspicious"},{"name":"Śubha","start":"04:37","end":"06:00","startHours":28.62217296024614,"endHours":29.992075933987987,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:00","end":"07:00","startHours":5.992075933987988,"endHours":6.992075933987988,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:00","end":"08:00","startHours":6.992075933987988,"endHours":7.992075933987988,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:00","end":"09:00","startHours":7.992075933987988,"endHours":8.992075933987987,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:00","end":"10:00","startHours":8.992075933987987,"endHours":9.992075933987987,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:00","end":"11:00","startHours":9.992075933987987,"endHours":10.992075933987987,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:00","end":"12:00","startHours":10.992075933987987,"endHours":11.992075933987987,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:00","end":"13:00","startHours":11.992075933987987,"endHours":12.992075933987987,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:00","end":"14:00","startHours":12.992075933987987,"endHours":13.992075933987987,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:00","end":"15:00","startHours":13.992075933987987,"endHours":14.992075933987987,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:00","end":"16:00","startHours":14.992075933987987,"endHours":15.992075933987987,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:00","end":"17:00","startHours":15.992075933987987,"endHours":16.992075933987987,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:00","end":"18:00","startHours":16.992075933987987,"endHours":17.992075933987987,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:00","end":"19:00","startHours":17.992075933987987,"endHours":18.992075933987987,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:00","end":"20:00","startHours":18.992075933987987,"endHours":19.992075933987987,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:00","end":"21:00","startHours":19.992075933987987,"endHours":20.992075933987987,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:00","end":"22:00","startHours":20.992075933987987,"endHours":21.992075933987987,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:00","end":"23:00","startHours":21.992075933987987,"endHours":22.992075933987987,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:00","end":"00:00","startHours":22.992075933987987,"endHours":23.992075933987987,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:00","end":"01:00","startHours":23.992075933987987,"endHours":24.992075933987987,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:00","end":"02:00","startHours":24.992075933987987,"endHours":25.992075933987987,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:00","end":"03:00","startHours":25.992075933987987,"endHours":26.992075933987987,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:00","end":"04:00","startHours":26.992075933987987,"endHours":27.992075933987987,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:00","end":"05:00","startHours":27.992075933987987,"endHours":28.992075933987987,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:00","end":"06:00","startHours":28.992075933987987,"endHours":29.992075933987987,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","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":-10.747284611388306,"eotMinutes":-14.189842341236304,"ayanamsa":22.1088}},"calendars":{"vikram_samvat":1932,"vikram_samvatsara":"Sarvadhāri","saka_samvat":1797,"saka_samvatsara":"Yuva","bengali_samvat":1282,"malayalam_era":1051,"nanakshahi_year":406,"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 Pratipada · Vikram 1932 Sarvadhāri · Śaka 1797 Yuva"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 21, 1875 CE · Perth, Australia · Vidhyamitra","description":"February 21, 1875 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 06:00, sūryāsta 19:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1875-02-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1875-02-21","sa":"https://sa.vidhyamitra.com/city/perth/1875-02-21","hi":"https://hi.vidhyamitra.com/city/perth/1875-02-21","x-default":"https://vidhyamitra.com/city/perth/1875-02-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T18:19:35.444Z","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":"2026-06-02T18:19:35.444Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T18:19:35.444Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}