{"id":"vidhyamitra:city-day:rishikesh:2151-02-10:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2151-02-10","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2151-02-10","date_display":"February 10, 2151 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":2151,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2506736.770833,"kali_year":5252,"ahargana":1918271.2708,"sun":{"sidereal_longitude":294.7063,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":220.3688,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.6626,"elapsed_within_tithi_degrees":9.6626},"nakshatra":{"number":17,"name":"Anurādhā","pada":3,"moon_longitude":220.3688,"elapsed_within_degrees":7.0355},"yoga":{"number":12,"name":"Dhruva","sum_longitude":155.0751},"karana":{"half_tithi_index":47,"name":"Gara"},"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":2151,"month":2,"day":10,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2506736.770833,"ahargana":1918271.2708,"kali_year":5252,"ayanamsa_lahiri":25.9639,"grahas":{"sun":{"sidereal_longitude":294.999779,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":223.32117900000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":1.5663},"mars":{"sidereal_longitude":77.34647899999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":306.409179,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":272.935879,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":327.84687899999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":68.172979,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":60.7567,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":240.7567,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":2151,"month":2,"day":10,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2506736.770833,"kali_year":5252,"ahargana":1918271.2708,"sun":{"sidereal_longitude":294.7063,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":220.3688,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":24,"name":"Navamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Navamī","elongation_degrees":285.6626,"elapsed_within_tithi_degrees":9.6626},"nakshatra":{"number":17,"name":"Anurādhā","pada":3,"moon_longitude":220.3688,"elapsed_within_degrees":7.0355},"yoga":{"number":12,"name":"Dhruva","sum_longitude":155.0751},"karana":{"half_tithi_index":47,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.566,"elongation":74.337},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.566,"opposition_distance":105.663}},"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":"07:02","sunsetLocal":"18:01","solarNoonLocal":"12:31","dayLengthHours":10.984358123302624,"dayLengthDisplay":"10 Hours 59 Mins 04 Secs","nightLengthDisplay":"13 Hours 00 Mins 56 Secs","moonriseLocal":"02:35","moonsetLocal":"12:54","rahuKala":{"name":"Rāhu Kāla","start":"12:31","end":"13:54","startHours":12.524604758192073,"endHours":13.897649523604901,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:24","end":"09:47","startHours":8.405470461953588,"endHours":9.778515227366416,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:09","end":"12:31","startHours":11.151559992779244,"endHours":12.524604758192073,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:36","end":"09:58","startHours":9.595442591978038,"endHours":9.961587862754794,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:29","end":"07:47","startHours":7.490107285011703,"endHours":7.783023501633107,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:53","startHours":12.158459487415318,"endHours":12.890750028968824,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:34","end":"06:18","startHours":5.567844613433744,"endHours":6.3001351549872515,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:07","end":"07:02","startHours":6.117062519598875,"endHours":7.03242569654076,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:05","startHours":14.355331112075842,"endHours":15.08762165362935,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.816783819843383,"endHours":18.216783819843382,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:28","startHours":18.016783819843383,"endHours":18.474465408314327,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.766783819843383,"endHours":19.516783819843383,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:53","startHours":24.158459487415314,"endHours":24.890750028968824,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"07:02","end":"08:24","startHours":7.03242569654076,"endHours":8.405470461953588,"quality":"auspicious"},{"name":"Amṛta","start":"08:24","end":"09:47","startHours":8.405470461953588,"endHours":9.778515227366416,"quality":"auspicious"},{"name":"Kāla","start":"09:47","end":"11:09","startHours":9.778515227366416,"endHours":11.151559992779244,"quality":"inauspicious"},{"name":"Śubha","start":"11:09","end":"12:31","startHours":11.151559992779244,"endHours":12.524604758192073,"quality":"auspicious"},{"name":"Roga","start":"12:31","end":"13:54","startHours":12.524604758192073,"endHours":13.897649523604901,"quality":"inauspicious"},{"name":"Udveg","start":"13:54","end":"15:16","startHours":13.897649523604901,"endHours":15.270694289017726,"quality":"inauspicious"},{"name":"Chala","start":"15:16","end":"16:39","startHours":15.270694289017726,"endHours":16.643739054430554,"quality":"neutral"},{"name":"Labha","start":"16:39","end":"18:01","startHours":16.643739054430554,"endHours":18.016783819843383,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:01","end":"19:39","startHours":18.016783819843383,"endHours":19.643739054430554,"quality":"inauspicious"},{"name":"Chala","start":"19:39","end":"21:16","startHours":19.643739054430554,"endHours":21.270694289017726,"quality":"neutral"},{"name":"Labha","start":"21:16","end":"22:54","startHours":21.270694289017726,"endHours":22.897649523604898,"quality":"auspicious"},{"name":"Amṛta","start":"22:54","end":"00:31","startHours":22.897649523604898,"endHours":24.52460475819207,"quality":"auspicious"},{"name":"Kāla","start":"00:31","end":"02:09","startHours":24.52460475819207,"endHours":26.15155999277924,"quality":"inauspicious"},{"name":"Śubha","start":"02:09","end":"03:47","startHours":26.15155999277924,"endHours":27.778515227366416,"quality":"auspicious"},{"name":"Roga","start":"03:47","end":"05:24","startHours":27.778515227366416,"endHours":29.405470461953588,"quality":"inauspicious"},{"name":"Udveg","start":"05:24","end":"07:02","startHours":29.405470461953588,"endHours":31.03242569654076,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:02","end":"08:02","startHours":7.03242569654076,"endHours":8.03242569654076,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"08:02","end":"09:02","startHours":8.03242569654076,"endHours":9.03242569654076,"planetary_lord":"Venus"},{"name":"Hora 3","start":"09:02","end":"10:02","startHours":9.03242569654076,"endHours":10.03242569654076,"planetary_lord":"Sun"},{"name":"Hora 4","start":"10:02","end":"11:02","startHours":10.03242569654076,"endHours":11.03242569654076,"planetary_lord":"Mars"},{"name":"Hora 5","start":"11:02","end":"12:02","startHours":11.03242569654076,"endHours":12.03242569654076,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"12:02","end":"13:02","startHours":12.03242569654076,"endHours":13.03242569654076,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"13:02","end":"14:02","startHours":13.03242569654076,"endHours":14.03242569654076,"planetary_lord":"Moon"},{"name":"Hora 8","start":"14:02","end":"15:02","startHours":14.03242569654076,"endHours":15.03242569654076,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"15:02","end":"16:02","startHours":15.03242569654076,"endHours":16.03242569654076,"planetary_lord":"Venus"},{"name":"Hora 10","start":"16:02","end":"17:02","startHours":16.03242569654076,"endHours":17.03242569654076,"planetary_lord":"Sun"},{"name":"Hora 11","start":"17:02","end":"18:02","startHours":17.03242569654076,"endHours":18.03242569654076,"planetary_lord":"Mars"},{"name":"Hora 12","start":"18:02","end":"19:02","startHours":18.03242569654076,"endHours":19.03242569654076,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"19:02","end":"20:02","startHours":19.03242569654076,"endHours":20.03242569654076,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"20:02","end":"21:02","startHours":20.03242569654076,"endHours":21.03242569654076,"planetary_lord":"Moon"},{"name":"Hora 15","start":"21:02","end":"22:02","startHours":21.03242569654076,"endHours":22.03242569654076,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"22:02","end":"23:02","startHours":22.03242569654076,"endHours":23.03242569654076,"planetary_lord":"Venus"},{"name":"Hora 17","start":"23:02","end":"00:02","startHours":23.03242569654076,"endHours":24.03242569654076,"planetary_lord":"Sun"},{"name":"Hora 18","start":"00:02","end":"01:02","startHours":24.03242569654076,"endHours":25.03242569654076,"planetary_lord":"Mars"},{"name":"Hora 19","start":"01:02","end":"02:02","startHours":25.03242569654076,"endHours":26.03242569654076,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"02:02","end":"03:02","startHours":26.03242569654076,"endHours":27.03242569654076,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"03:02","end":"04:02","startHours":27.03242569654076,"endHours":28.03242569654076,"planetary_lord":"Moon"},{"name":"Hora 22","start":"04:02","end":"05:02","startHours":28.03242569654076,"endHours":29.03242569654076,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"05:02","end":"06:02","startHours":29.03242569654076,"endHours":30.03242569654076,"planetary_lord":"Venus"},{"name":"Hora 24","start":"06:02","end":"07:02","startHours":30.03242569654076,"endHours":31.03242569654076,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"North (Uttara)","chandraVasa":"North-East","rahuVasa":"South-West","anandadiYoga":{"name":"Ānanda","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":-14.506926407759265,"eotMinutes":-14.546685491524224,"ayanamsa":25.9639}},"calendars":{"vikram_samvat":2208,"vikram_samvatsara":"Raktākṣī","saka_samvat":2073,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1558,"malayalam_era":1327,"nanakshahi_year":682,"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":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Navamī · Vikram 2208 Raktākṣī · Śaka 2073 Virodhakṛt"},"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 10, 2151 CE · Ṛṣikeśa · Vidhyamitra","description":"February 10, 2151 CE for Ṛṣikeśa: Kṛṣṇa Navamī, sūryodaya 07:02, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2151-02-10","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2151-02-10","sa":"https://sa.vidhyamitra.com/city/rishikesh/2151-02-10","hi":"https://hi.vidhyamitra.com/city/rishikesh/2151-02-10","x-default":"https://vidhyamitra.com/city/rishikesh/2151-02-10"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T03:32:27.920Z","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":"2026-06-02T03:32:27.920Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T03:32:27.920Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}