{"id":"vidhyamitra:city-day:perth:2115-04-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2115-04-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2115-04-21","date_display":"April 21, 2115 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":2115,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493657.770833,"kali_year":5217,"ahargana":1905192.2708,"sun":{"sidereal_longitude":4.816,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":318.369,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":313.553,"elapsed_within_tithi_degrees":1.553},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":318.369,"elapsed_within_degrees":11.7023},"yoga":{"number":25,"name":"Brahma","sum_longitude":323.185},"karana":{"half_tithi_index":52,"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":2115,"month":4,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2493657.770833,"ahargana":1905192.2708,"kali_year":5217,"ayanamsa_lahiri":25.4637,"grahas":{"sun":{"sidereal_longitude":4.969092999999987,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":318.337893,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":-4.3539},"mars":{"sidereal_longitude":56.487593000000004,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":20.571393,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":273.74759300000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":339.717093,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":350.262793,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":33.7451,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":213.7451,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"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":2115,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493657.770833,"kali_year":5217,"ahargana":1905192.2708,"sun":{"sidereal_longitude":4.816,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":318.369,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":313.553,"elapsed_within_tithi_degrees":1.553},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":318.369,"elapsed_within_degrees":11.7023},"yoga":{"number":25,"name":"Brahma","sum_longitude":323.185},"karana":{"half_tithi_index":52,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.354,"elongation":46.447},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.354,"opposition_distance":133.553}},"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":"06:41","sunsetLocal":"17:50","solarNoonLocal":"12:15","dayLengthHours":11.151935573288844,"dayLengthDisplay":"11 Hours 09 Mins 07 Secs","nightLengthDisplay":"12 Hours 50 Mins 53 Secs","moonriseLocal":"02:50","moonsetLocal":"15:28","rahuKala":{"name":"Rāhu Kāla","start":"16:26","end":"17:50","startHours":16.438153692630614,"endHours":17.832145639291717,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:15","end":"13:39","startHours":12.256177852647294,"endHours":13.6501697993084,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:03","end":"16:26","startHours":15.044161745969506,"endHours":16.438153692630614,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:39","startHours":9.282328366436936,"endHours":9.654059552213232,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:27","startHours":7.144874048223242,"endHours":7.442258996844278,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:38","startHours":11.884446666871002,"endHours":12.62790903842359,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:12","end":"05:56","startHours":5.193285322897694,"endHours":5.9367476944502835,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:45","end":"06:41","startHours":5.750882101562136,"endHours":6.680210066002873,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:51","startHours":14.11483378152877,"endHours":14.858296153081358,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:38","end":"18:02","startHours":17.632145639291718,"endHours":18.032145639291716,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:50","end":"18:18","startHours":17.832145639291717,"endHours":18.296809621512086,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:35","end":"19:20","startHours":17.582145639291717,"endHours":19.332145639291717,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:38","startHours":23.884446666871003,"endHours":24.627909038423592,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:41","end":"08:04","startHours":6.680210066002873,"endHours":8.074202012663978,"quality":"inauspicious"},{"name":"Chala","start":"08:04","end":"09:28","startHours":8.074202012663978,"endHours":9.468193959325085,"quality":"neutral"},{"name":"Labha","start":"09:28","end":"10:52","startHours":9.468193959325085,"endHours":10.86218590598619,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:15","startHours":10.86218590598619,"endHours":12.256177852647294,"quality":"auspicious"},{"name":"Kāla","start":"12:15","end":"13:39","startHours":12.256177852647294,"endHours":13.6501697993084,"quality":"inauspicious"},{"name":"Śubha","start":"13:39","end":"15:03","startHours":13.6501697993084,"endHours":15.044161745969506,"quality":"auspicious"},{"name":"Roga","start":"15:03","end":"16:26","startHours":15.044161745969506,"endHours":16.438153692630614,"quality":"inauspicious"},{"name":"Udveg","start":"16:26","end":"17:50","startHours":16.438153692630614,"endHours":17.832145639291717,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:50","end":"19:26","startHours":17.832145639291717,"endHours":19.43815369263061,"quality":"auspicious"},{"name":"Roga","start":"19:26","end":"21:03","startHours":19.43815369263061,"endHours":21.044161745969507,"quality":"inauspicious"},{"name":"Udveg","start":"21:03","end":"22:39","startHours":21.044161745969507,"endHours":22.6501697993084,"quality":"inauspicious"},{"name":"Chala","start":"22:39","end":"00:15","startHours":22.6501697993084,"endHours":24.256177852647294,"quality":"neutral"},{"name":"Labha","start":"00:15","end":"01:52","startHours":24.256177852647294,"endHours":25.862185905986188,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:28","startHours":25.862185905986188,"endHours":27.468193959325085,"quality":"auspicious"},{"name":"Kāla","start":"03:28","end":"05:04","startHours":27.468193959325085,"endHours":29.074202012663978,"quality":"inauspicious"},{"name":"Śubha","start":"05:04","end":"06:41","startHours":29.074202012663978,"endHours":30.68021006600287,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:41","end":"07:41","startHours":6.680210066002873,"endHours":7.680210066002873,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:41","end":"08:41","startHours":7.680210066002873,"endHours":8.680210066002873,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:41","end":"09:41","startHours":8.680210066002873,"endHours":9.680210066002873,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:41","end":"10:41","startHours":9.680210066002873,"endHours":10.680210066002873,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:41","end":"11:41","startHours":10.680210066002873,"endHours":11.680210066002873,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:41","end":"12:41","startHours":11.680210066002873,"endHours":12.680210066002873,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:41","end":"13:41","startHours":12.680210066002873,"endHours":13.680210066002873,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:41","end":"14:41","startHours":13.680210066002873,"endHours":14.680210066002873,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:41","end":"15:41","startHours":14.680210066002873,"endHours":15.680210066002873,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:41","end":"16:41","startHours":15.680210066002873,"endHours":16.68021006600287,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:41","end":"17:41","startHours":16.68021006600287,"endHours":17.68021006600287,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:41","end":"18:41","startHours":17.68021006600287,"endHours":18.68021006600287,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:41","end":"19:41","startHours":18.68021006600287,"endHours":19.68021006600287,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:41","end":"20:41","startHours":19.68021006600287,"endHours":20.68021006600287,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:41","end":"21:41","startHours":20.68021006600287,"endHours":21.68021006600287,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:41","end":"22:41","startHours":21.68021006600287,"endHours":22.68021006600287,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:41","end":"23:41","startHours":22.68021006600287,"endHours":23.68021006600287,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:41","end":"00:41","startHours":23.68021006600287,"endHours":24.68021006600287,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:41","end":"01:41","startHours":24.68021006600287,"endHours":25.68021006600287,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:41","end":"02:41","startHours":25.68021006600287,"endHours":26.68021006600287,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:41","end":"03:41","startHours":26.68021006600287,"endHours":27.68021006600287,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:41","end":"04:41","startHours":27.68021006600287,"endHours":28.68021006600287,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:41","end":"05:41","startHours":28.68021006600287,"endHours":29.68021006600287,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:41","end":"06:41","startHours":29.68021006600287,"endHours":30.68021006600287,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.622487165114887,"eotMinutes":1.1873288411622274,"ayanamsa":25.4637}},"calendars":{"vikram_samvat":2172,"vikram_samvatsara":"Sarvadhāri","saka_samvat":2037,"saka_samvatsara":"Yuva","bengali_samvat":1522,"malayalam_era":1291,"nanakshahi_year":646,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Dvādaśī · Vikram 2172 Sarvadhāri · Śaka 2037 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 April 21, 2115 CE · Perth, Australia · Vidhyamitra","description":"April 21, 2115 CE for Perth, Australia: Kṛṣṇa Dvādaśī, sūryodaya 06:41, sūryāsta 17:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2115-04-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2115-04-21","sa":"https://sa.vidhyamitra.com/city/perth/2115-04-21","hi":"https://hi.vidhyamitra.com/city/perth/2115-04-21","x-default":"https://vidhyamitra.com/city/perth/2115-04-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T05:19:54.174Z","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":"2026-06-02T05:19:54.174Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T05:19:54.174Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}