{"id":"vidhyamitra:city-day:rishikesh:2037-12-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2037-12-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2037-12-07","date_display":"December 7, 2037 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":2037,"month":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465399.770833,"kali_year":5139,"ahargana":1876934.2708,"sun":{"sidereal_longitude":230.3363,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":232.588,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":2.2517,"elapsed_within_tithi_degrees":2.2517},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":232.588,"elapsed_within_degrees":5.9213},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.9242},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2037,"month":12,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465399.770833,"ahargana":1876934.2708,"kali_year":5139,"ayanamsa_lahiri":24.3829,"grahas":{"sun":{"sidereal_longitude":230.88195599999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":231.53875600000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false,"latitude":2.7935},"mars":{"sidereal_longitude":27.005956000000026,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":234.65285599999993,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":93.710756,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":true},"venus":{"sidereal_longitude":265.56945599999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":140.938156,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":90.9899,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":270.9899,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":2037,"month":12,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465399.770833,"kali_year":5139,"ahargana":1876934.2708,"sun":{"sidereal_longitude":230.3363,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":232.588,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":2.2517,"elapsed_within_tithi_degrees":2.2517},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":232.588,"elapsed_within_degrees":5.9213},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.9242},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.794,"elongation":2.252},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.794,"opposition_distance":177.748}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"07:01","sunsetLocal":"17:18","solarNoonLocal":"12:09","dayLengthHours":10.280153969078668,"dayLengthDisplay":"10 Hours 16 Mins 49 Secs","nightLengthDisplay":"13 Hours 43 Mins 11 Secs","moonriseLocal":"07:05","moonsetLocal":"17:19","rahuKala":{"name":"Rāhu Kāla","start":"08:18","end":"09:35","startHours":8.298373986206546,"endHours":9.583393232341379,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:52","end":"12:09","startHours":10.868412478476213,"endHours":12.153431724611046,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:26","end":"14:43","startHours":13.43845097074588,"endHours":14.723470216880713,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:25","end":"09:45","startHours":9.412057332856735,"endHours":9.754729131826025,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:27","end":"07:43","startHours":7.441694488783324,"endHours":7.715831927958755,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:30","startHours":11.810759925641758,"endHours":12.496103523580334,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:20","startHours":5.642667544194557,"endHours":6.328011142133135,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:09","end":"07:01","startHours":6.1566752426484905,"endHours":7.013354740071713,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:52","end":"14:33","startHours":13.86679071945749,"endHours":14.552134317396069,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:06","end":"17:30","startHours":17.09350870915038,"endHours":17.49350870915038,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:18","end":"17:43","startHours":17.29350870915038,"endHours":17.72184845786199,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:03","end":"18:48","startHours":17.04350870915038,"endHours":18.79350870915038,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:30","startHours":23.810759925641758,"endHours":24.496103523580334,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:01","end":"08:18","startHours":7.013354740071713,"endHours":8.298373986206546,"quality":"auspicious"},{"name":"Kāla","start":"08:18","end":"09:35","startHours":8.298373986206546,"endHours":9.583393232341379,"quality":"inauspicious"},{"name":"Śubha","start":"09:35","end":"10:52","startHours":9.583393232341379,"endHours":10.868412478476213,"quality":"auspicious"},{"name":"Roga","start":"10:52","end":"12:09","startHours":10.868412478476213,"endHours":12.153431724611046,"quality":"inauspicious"},{"name":"Udveg","start":"12:09","end":"13:26","startHours":12.153431724611046,"endHours":13.43845097074588,"quality":"inauspicious"},{"name":"Chala","start":"13:26","end":"14:43","startHours":13.43845097074588,"endHours":14.723470216880713,"quality":"neutral"},{"name":"Labha","start":"14:43","end":"16:01","startHours":14.723470216880713,"endHours":16.008489463015547,"quality":"auspicious"},{"name":"Amṛta","start":"16:01","end":"17:18","startHours":16.008489463015547,"endHours":17.29350870915038,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:18","end":"19:01","startHours":17.29350870915038,"endHours":19.008489463015547,"quality":"neutral"},{"name":"Labha","start":"19:01","end":"20:43","startHours":19.008489463015547,"endHours":20.723470216880713,"quality":"auspicious"},{"name":"Amṛta","start":"20:43","end":"22:26","startHours":20.723470216880713,"endHours":22.43845097074588,"quality":"auspicious"},{"name":"Kāla","start":"22:26","end":"00:09","startHours":22.43845097074588,"endHours":24.153431724611046,"quality":"inauspicious"},{"name":"Śubha","start":"00:09","end":"01:52","startHours":24.153431724611046,"endHours":25.868412478476213,"quality":"auspicious"},{"name":"Roga","start":"01:52","end":"03:35","startHours":25.868412478476213,"endHours":27.58339323234138,"quality":"inauspicious"},{"name":"Udveg","start":"03:35","end":"05:18","startHours":27.58339323234138,"endHours":29.298373986206546,"quality":"inauspicious"},{"name":"Chala","start":"05:18","end":"07:01","startHours":29.298373986206546,"endHours":31.013354740071712,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:01","end":"08:01","startHours":7.013354740071713,"endHours":8.013354740071712,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:01","end":"09:01","startHours":8.013354740071712,"endHours":9.013354740071712,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:01","end":"10:01","startHours":9.013354740071712,"endHours":10.013354740071712,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:01","end":"11:01","startHours":10.013354740071712,"endHours":11.013354740071712,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:01","end":"12:01","startHours":11.013354740071712,"endHours":12.013354740071712,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:01","end":"13:01","startHours":12.013354740071712,"endHours":13.013354740071712,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:01","end":"14:01","startHours":13.013354740071712,"endHours":14.013354740071712,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:01","end":"15:01","startHours":14.013354740071712,"endHours":15.013354740071712,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:01","end":"16:01","startHours":15.013354740071712,"endHours":16.013354740071712,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:01","end":"17:01","startHours":16.013354740071712,"endHours":17.013354740071712,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:01","end":"18:01","startHours":17.013354740071712,"endHours":18.013354740071712,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:01","end":"19:01","startHours":18.013354740071712,"endHours":19.013354740071712,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:01","end":"20:01","startHours":19.013354740071712,"endHours":20.013354740071712,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:01","end":"21:01","startHours":20.013354740071712,"endHours":21.013354740071712,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:01","end":"22:01","startHours":21.013354740071712,"endHours":22.013354740071712,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:01","end":"23:01","startHours":22.013354740071712,"endHours":23.013354740071712,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:01","end":"00:01","startHours":23.013354740071712,"endHours":24.013354740071712,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:01","end":"01:01","startHours":24.013354740071712,"endHours":25.013354740071712,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:01","end":"02:01","startHours":25.013354740071712,"endHours":26.013354740071712,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:01","end":"03:01","startHours":26.013354740071712,"endHours":27.013354740071712,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:01","end":"04:01","startHours":27.013354740071712,"endHours":28.013354740071712,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:01","end":"05:01","startHours":28.013354740071712,"endHours":29.013354740071712,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:01","end":"06:01","startHours":29.013354740071712,"endHours":30.013354740071712,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:01","end":"07:01","startHours":30.013354740071712,"endHours":31.013354740071712,"planetary_lord":"Venus"}],"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","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"North-East","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Śarad (Autumn)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.62212557219603,"eotMinutes":7.723696523337262,"ayanamsa":24.3829}},"calendars":{"vikram_samvat":2094,"vikram_samvatsara":"Pramoda","saka_samvat":1959,"saka_samvatsara":"Piṅgala","bengali_samvat":1444,"malayalam_era":1213,"nanakshahi_year":568,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Pratipada · Vikram 2094 Pramoda · Śaka 1959 Piṅgala"},"festivals":[{"id":"vrischika-sankranti","name":"Vṛścika Saṅkrānti","name_sanskrit":"वृश्चिक सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Scorpio.","vrata":false,"detection":{"sun_rashi":"Vṛścika"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 7, 2037 CE · Ṛṣikeśa · Vidhyamitra","description":"December 7, 2037 CE for Ṛṣikeśa: Śukla Pratipada, sūryodaya 07:01, sūryāsta 17:18.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2037-12-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2037-12-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/2037-12-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/2037-12-07","x-default":"https://vidhyamitra.com/city/rishikesh/2037-12-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T17:35:37.703Z","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":"2026-05-15T17:35:37.703Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T17:35:37.703Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}