{"id":"vidhyamitra:city-day:boston:2011-01-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2011-01-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-01-22","date_display":"January 22, 2011 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":2011,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455583.770833,"kali_year":5112,"ahargana":1867118.2708,"sun":{"sidereal_longitude":277.5563,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":124.5941,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":207.0378,"elapsed_within_tithi_degrees":3.0378},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.5941,"elapsed_within_degrees":4.5941},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.1505},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2011,"month":1,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455583.770833,"ahargana":1867118.2708,"kali_year":5112,"ayanamsa_lahiri":24.0075,"grahas":{"sun":{"sidereal_longitude":277.64059999999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":127.1925,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false,"latitude":-3.6163},"mars":{"sidereal_longitude":280.62390000000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":256.85120000000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":335.91470000000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":231.08000000000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":172.95500000000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":251.0888,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":71.0888,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","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":2011,"month":1,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455583.770833,"kali_year":5112,"ahargana":1867118.2708,"sun":{"sidereal_longitude":277.5563,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":124.5941,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":207.0378,"elapsed_within_tithi_degrees":3.0378},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.5941,"elapsed_within_degrees":4.5941},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":42.1505},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.616,"elongation":152.962},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.616,"opposition_distance":27.038}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":0.37,"elongation":2.307}]},"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"sunriseLocal":"07:07","sunsetLocal":"16:44","solarNoonLocal":"11:56","dayLengthHours":9.614524801475156,"dayLengthDisplay":"9 Hours 36 Mins 52 Secs","nightLengthDisplay":"14 Hours 23 Mins 08 Secs","moonriseLocal":"19:10","moonsetLocal":"08:38","rahuKala":{"name":"Rāhu Kāla","start":"09:32","end":"10:44","startHours":9.525897188103531,"endHours":10.727712788287924,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:08","end":"14:20","startHours":13.131343988656713,"endHours":14.33315958884111,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:07","end":"08:19","startHours":7.122265987734742,"endHours":8.324081587919135,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:41","startHours":9.365655108078945,"endHours":9.686139268128116,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:31","end":"07:47","startHours":7.5228711877962064,"endHours":7.779258515835544,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:37","end":"12:15","startHours":11.609044228423148,"endHours":12.250012548521493,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:29","startHours":5.840329347538054,"endHours":6.481297667636398,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:19","end":"07:07","startHours":6.321055587611812,"endHours":7.122265987734742,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:32","end":"14:10","startHours":13.53194918871818,"endHours":14.172917508816523,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:32","end":"16:56","startHours":16.5367907892099,"endHours":16.936790789209898,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:44","end":"17:08","startHours":16.7367907892099,"endHours":17.13739598927136,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:29","end":"18:14","startHours":16.4867907892099,"endHours":18.2367907892099,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:37","end":"00:15","startHours":23.609044228423148,"endHours":24.250012548521493,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"07:07","end":"08:19","startHours":7.122265987734742,"endHours":8.324081587919135,"quality":"inauspicious"},{"name":"Śubha","start":"08:19","end":"09:32","startHours":8.324081587919135,"endHours":9.525897188103531,"quality":"auspicious"},{"name":"Roga","start":"09:32","end":"10:44","startHours":9.525897188103531,"endHours":10.727712788287924,"quality":"inauspicious"},{"name":"Udveg","start":"10:44","end":"11:56","startHours":10.727712788287924,"endHours":11.92952838847232,"quality":"inauspicious"},{"name":"Chala","start":"11:56","end":"13:08","startHours":11.92952838847232,"endHours":13.131343988656713,"quality":"neutral"},{"name":"Labha","start":"13:08","end":"14:20","startHours":13.131343988656713,"endHours":14.33315958884111,"quality":"auspicious"},{"name":"Amṛta","start":"14:20","end":"15:32","startHours":14.33315958884111,"endHours":15.534975189025502,"quality":"auspicious"},{"name":"Kāla","start":"15:32","end":"16:44","startHours":15.534975189025502,"endHours":16.7367907892099,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"16:44","end":"18:32","startHours":16.7367907892099,"endHours":18.534975189025502,"quality":"auspicious"},{"name":"Amṛta","start":"18:32","end":"20:20","startHours":18.534975189025502,"endHours":20.33315958884111,"quality":"auspicious"},{"name":"Kāla","start":"20:20","end":"22:08","startHours":20.33315958884111,"endHours":22.131343988656717,"quality":"inauspicious"},{"name":"Śubha","start":"22:08","end":"23:56","startHours":22.131343988656717,"endHours":23.92952838847232,"quality":"auspicious"},{"name":"Roga","start":"23:56","end":"01:44","startHours":23.92952838847232,"endHours":25.727712788287924,"quality":"inauspicious"},{"name":"Udveg","start":"01:44","end":"03:32","startHours":25.727712788287924,"endHours":27.52589718810353,"quality":"inauspicious"},{"name":"Chala","start":"03:32","end":"05:19","startHours":27.52589718810353,"endHours":29.32408158791914,"quality":"neutral"},{"name":"Labha","start":"05:19","end":"07:07","startHours":29.32408158791914,"endHours":31.122265987734743,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.122265987734742,"endHours":8.122265987734743,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.122265987734743,"endHours":9.122265987734743,"planetary_lord":"Moon"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.122265987734743,"endHours":10.122265987734743,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.122265987734743,"endHours":11.122265987734743,"planetary_lord":"Venus"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.122265987734743,"endHours":12.122265987734743,"planetary_lord":"Sun"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.122265987734743,"endHours":13.122265987734743,"planetary_lord":"Mars"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.122265987734743,"endHours":14.122265987734743,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.122265987734743,"endHours":15.122265987734743,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.122265987734743,"endHours":16.122265987734743,"planetary_lord":"Moon"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.122265987734743,"endHours":17.122265987734743,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.122265987734743,"endHours":18.122265987734743,"planetary_lord":"Venus"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.122265987734743,"endHours":19.122265987734743,"planetary_lord":"Sun"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.122265987734743,"endHours":20.122265987734743,"planetary_lord":"Mars"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.122265987734743,"endHours":21.122265987734743,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.122265987734743,"endHours":22.122265987734743,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.122265987734743,"endHours":23.122265987734743,"planetary_lord":"Moon"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.122265987734743,"endHours":24.122265987734743,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.122265987734743,"endHours":25.122265987734743,"planetary_lord":"Venus"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.122265987734743,"endHours":26.122265987734743,"planetary_lord":"Sun"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.122265987734743,"endHours":27.122265987734743,"planetary_lord":"Mars"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.122265987734743,"endHours":28.122265987734743,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.122265987734743,"endHours":29.122265987734743,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.122265987734743,"endHours":30.122265987734743,"planetary_lord":"Moon"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.122265987734743,"endHours":31.122265987734743,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvānkṣa","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":-19.790649858668665,"eotMinutes":-11.536103308339323,"ayanamsa":24.0075}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"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 Tṛtīyā · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"boston"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 22, 2011 CE · Boston, USA · Vidhyamitra","description":"January 22, 2011 CE for Boston, USA: Kṛṣṇa Tṛtīyā, sūryodaya 07:07, sūryāsta 16:44.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2011-01-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2011-01-22","sa":"https://sa.vidhyamitra.com/city/boston/2011-01-22","hi":"https://hi.vidhyamitra.com/city/boston/2011-01-22","x-default":"https://vidhyamitra.com/city/boston/2011-01-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T05:22:02.567Z","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":"2026-06-01T05:22:02.567Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T05:22:02.567Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}