{"id":"vidhyamitra:city-day:seattle:1981-01-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/seattle/1981-01-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-21","date_display":"January 21, 1981 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":1981,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444625.770833,"kali_year":5082,"ahargana":1856160.2708,"sun":{"sidereal_longitude":277.313,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":108.0307,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.7177,"elapsed_within_tithi_degrees":10.7177},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":108.0307,"elapsed_within_degrees":1.3641},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.3437},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":1981,"month":1,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444625.770833,"ahargana":1856160.2708,"kali_year":5082,"ayanamsa_lahiri":23.5884,"grahas":{"sun":{"sidereal_longitude":277.32967600000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":106.23667599999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false,"latitude":-0.2874},"mars":{"sidereal_longitude":293.34787600000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":290.808576,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":166.82817599999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":258.89637600000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":165.959476,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":111.6964,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":291.6964,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"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":1981,"month":1,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444625.770833,"kali_year":5082,"ahargana":1856160.2708,"sun":{"sidereal_longitude":277.313,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":108.0307,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":190.7177,"elapsed_within_tithi_degrees":10.7177},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":108.0307,"elapsed_within_degrees":1.3641},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.3437},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.287,"elongation":169.282},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.287,"opposition_distance":10.718}},"eclipse_window_40days":[{"offset_days":-1,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776},{"offset_days":15,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"sunriseLocal":"07:49","sunsetLocal":"16:53","solarNoonLocal":"12:21","dayLengthHours":9.066027632165934,"dayLengthDisplay":"9 Hours 03 Mins 58 Secs","nightLengthDisplay":"14 Hours 56 Mins 02 Secs","moonriseLocal":"17:30","moonsetLocal":"08:22","rahuKala":{"name":"Rāhu Kāla","start":"12:21","end":"13:29","startHours":12.3430688541522,"endHours":13.476322308172943,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:57","end":"10:05","startHours":8.943308492089976,"endHours":10.076561946110719,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:13","end":"12:21","startHours":11.20981540013146,"endHours":12.3430688541522,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:56","end":"10:14","startHours":9.925461485574619,"endHours":10.227662406646816,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"08:11","end":"08:26","startHours":8.187806189409482,"endHours":8.42956692626724,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:39","startHours":12.040867933080003,"endHours":12.645269775224397,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:36","end":"07:12","startHours":6.601251353780443,"endHours":7.205653195924839,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"07:03","end":"07:49","startHours":7.054552735388739,"endHours":7.810055038069234,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:51","end":"14:28","startHours":13.854073459513192,"endHours":14.458475301657588,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:41","end":"17:05","startHours":16.676082670235168,"endHours":17.076082670235166,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:53","end":"17:15","startHours":16.876082670235167,"endHours":17.253833821575416,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:38","end":"18:23","startHours":16.626082670235167,"endHours":18.376082670235167,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:39","startHours":24.04086793308,"endHours":24.6452697752244,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:49","end":"08:57","startHours":7.810055038069234,"endHours":8.943308492089976,"quality":"auspicious"},{"name":"Amṛta","start":"08:57","end":"10:05","startHours":8.943308492089976,"endHours":10.076561946110719,"quality":"auspicious"},{"name":"Kāla","start":"10:05","end":"11:13","startHours":10.076561946110719,"endHours":11.20981540013146,"quality":"inauspicious"},{"name":"Śubha","start":"11:13","end":"12:21","startHours":11.20981540013146,"endHours":12.3430688541522,"quality":"auspicious"},{"name":"Roga","start":"12:21","end":"13:29","startHours":12.3430688541522,"endHours":13.476322308172943,"quality":"inauspicious"},{"name":"Udveg","start":"13:29","end":"14:37","startHours":13.476322308172943,"endHours":14.609575762193685,"quality":"inauspicious"},{"name":"Chala","start":"14:37","end":"15:45","startHours":14.609575762193685,"endHours":15.742829216214426,"quality":"neutral"},{"name":"Labha","start":"15:45","end":"16:53","startHours":15.742829216214426,"endHours":16.876082670235167,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"16:53","end":"18:45","startHours":16.876082670235167,"endHours":18.742829216214425,"quality":"inauspicious"},{"name":"Chala","start":"18:45","end":"20:37","startHours":18.742829216214425,"endHours":20.609575762193685,"quality":"neutral"},{"name":"Labha","start":"20:37","end":"22:29","startHours":20.609575762193685,"endHours":22.476322308172943,"quality":"auspicious"},{"name":"Amṛta","start":"22:29","end":"00:21","startHours":22.476322308172943,"endHours":24.3430688541522,"quality":"auspicious"},{"name":"Kāla","start":"00:21","end":"02:13","startHours":24.3430688541522,"endHours":26.209815400131458,"quality":"inauspicious"},{"name":"Śubha","start":"02:13","end":"04:05","startHours":26.209815400131458,"endHours":28.076561946110715,"quality":"auspicious"},{"name":"Roga","start":"04:05","end":"05:57","startHours":28.076561946110715,"endHours":29.943308492089976,"quality":"inauspicious"},{"name":"Udveg","start":"05:57","end":"07:49","startHours":29.943308492089976,"endHours":31.810055038069233,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:49","end":"08:49","startHours":7.810055038069234,"endHours":8.810055038069233,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:49","end":"09:49","startHours":8.810055038069233,"endHours":9.810055038069233,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:49","end":"10:49","startHours":9.810055038069233,"endHours":10.810055038069233,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:49","end":"11:49","startHours":10.810055038069233,"endHours":11.810055038069233,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:49","end":"12:49","startHours":11.810055038069233,"endHours":12.810055038069233,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:49","end":"13:49","startHours":12.810055038069233,"endHours":13.810055038069233,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:49","end":"14:49","startHours":13.810055038069233,"endHours":14.810055038069233,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:49","end":"15:49","startHours":14.810055038069233,"endHours":15.810055038069233,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:49","end":"16:49","startHours":15.810055038069233,"endHours":16.810055038069233,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:49","end":"17:49","startHours":16.810055038069233,"endHours":17.810055038069233,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:49","end":"18:49","startHours":17.810055038069233,"endHours":18.810055038069233,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:49","end":"19:49","startHours":18.810055038069233,"endHours":19.810055038069233,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:49","end":"20:49","startHours":19.810055038069233,"endHours":20.810055038069233,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:49","end":"21:49","startHours":20.810055038069233,"endHours":21.810055038069233,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:49","end":"22:49","startHours":21.810055038069233,"endHours":22.810055038069233,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:49","end":"23:49","startHours":22.810055038069233,"endHours":23.810055038069233,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:49","end":"00:49","startHours":23.810055038069233,"endHours":24.810055038069233,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:49","end":"01:49","startHours":24.810055038069233,"endHours":25.810055038069233,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:49","end":"02:49","startHours":25.810055038069233,"endHours":26.810055038069233,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:49","end":"03:49","startHours":26.810055038069233,"endHours":27.810055038069233,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:49","end":"04:49","startHours":27.810055038069233,"endHours":28.810055038069233,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:49","end":"05:49","startHours":28.810055038069233,"endHours":29.810055038069233,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:49","end":"06:49","startHours":29.810055038069233,"endHours":30.810055038069233,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:49","end":"07:49","startHours":30.810055038069233,"endHours":31.810055038069233,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"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":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-19.95096517364316,"eotMinutes":-11.255731249132124,"ayanamsa":23.5884}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Pauṣa","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":"Māgha Kṛṣṇa Pratipada · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":"seattle"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 21, 1981 CE · Seattle, USA · Vidhyamitra","description":"January 21, 1981 CE for Seattle, USA: Kṛṣṇa Pratipada, sūryodaya 07:49, sūryāsta 16:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/seattle/1981-01-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/seattle/1981-01-21","sa":"https://sa.vidhyamitra.com/city/seattle/1981-01-21","hi":"https://hi.vidhyamitra.com/city/seattle/1981-01-21","x-default":"https://vidhyamitra.com/city/seattle/1981-01-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T10:01:43.547Z","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":"2026-06-01T10:01:43.547Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T10:01:43.547Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}