{"id":"vidhyamitra:city-day:rishikesh:1991-02-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1991-02-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1991-02-07","date_display":"February 7, 1991 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":1991,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448294.770833,"kali_year":5092,"ahargana":1859829.2708,"sun":{"sidereal_longitude":294.0959,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":207.5733,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.4774,"elapsed_within_tithi_degrees":9.4774},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.5733,"elapsed_within_degrees":7.5733},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":141.6692},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1991,"month":2,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2448294.770833,"ahargana":1859829.2708,"kali_year":5092,"ayanamsa_lahiri":23.7287,"grahas":{"sun":{"sidereal_longitude":294.0209930000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":209.22159299999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-4.2206},"mars":{"sidereal_longitude":41.329792999999995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":278.1540930000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":103.54609299999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":true},"venus":{"sidereal_longitude":317.39849300000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":276.126393,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":277.2951,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":97.2951,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":1991,"month":2,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2448294.770833,"kali_year":5092,"ahargana":1859829.2708,"sun":{"sidereal_longitude":294.0959,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":207.5733,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":23,"name":"Aṣṭamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Aṣṭamī","elongation_degrees":273.4774,"elapsed_within_tithi_degrees":9.4774},"nakshatra":{"number":16,"name":"Viśākhā","pada":3,"moon_longitude":207.5733,"elapsed_within_degrees":7.5733},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":141.6692},"karana":{"half_tithi_index":45,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.221,"elongation":86.523},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.221,"opposition_distance":93.477}},"eclipse_window_40days":[{"offset_days":-8,"type":"lunar","occurs":true,"moon_latitude":-0.52,"opposition_distance":1.567}]},"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":"07:04","sunsetLocal":"17:58","solarNoonLocal":"12:31","dayLengthHours":10.901040923973639,"dayLengthDisplay":"10 Hours 54 Mins 04 Secs","nightLengthDisplay":"13 Hours 05 Mins 56 Secs","moonriseLocal":"01:34","moonsetLocal":"12:10","rahuKala":{"name":"Rāhu Kāla","start":"13:53","end":"15:15","startHours":13.884417657319482,"endHours":15.247047772816188,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:04","end":"08:26","startHours":7.071267079835958,"endHours":8.433897195332662,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:48","end":"11:10","startHours":9.796527310829369,"endHours":11.159157426326072,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"09:59","startHours":9.614843295429807,"endHours":9.978211326228928,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:32","end":"07:49","startHours":7.52547711833486,"endHours":7.816171542974157,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:10","end":"12:53","startHours":12.158419511023657,"endHours":12.8851555726219,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:37","end":"06:21","startHours":5.617794956639473,"endHours":6.344531018237715,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:10","end":"07:04","startHours":6.162847002838155,"endHours":7.071267079835958,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:04","startHours":14.338627695818385,"endHours":15.065363757416627,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:46","end":"18:10","startHours":17.7723080038096,"endHours":18.172308003809597,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:58","end":"18:26","startHours":17.972308003809598,"endHours":18.4265180423085,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:43","end":"19:28","startHours":17.722308003809598,"endHours":19.472308003809598,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:10","end":"00:53","startHours":24.158419511023656,"endHours":24.8851555726219,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:04","end":"08:26","startHours":7.071267079835958,"endHours":8.433897195332662,"quality":"auspicious"},{"name":"Roga","start":"08:26","end":"09:48","startHours":8.433897195332662,"endHours":9.796527310829369,"quality":"inauspicious"},{"name":"Udveg","start":"09:48","end":"11:10","startHours":9.796527310829369,"endHours":11.159157426326072,"quality":"inauspicious"},{"name":"Chala","start":"11:10","end":"12:31","startHours":11.159157426326072,"endHours":12.521787541822778,"quality":"neutral"},{"name":"Labha","start":"12:31","end":"13:53","startHours":12.521787541822778,"endHours":13.884417657319482,"quality":"auspicious"},{"name":"Amṛta","start":"13:53","end":"15:15","startHours":13.884417657319482,"endHours":15.247047772816188,"quality":"auspicious"},{"name":"Kāla","start":"15:15","end":"16:37","startHours":15.247047772816188,"endHours":16.60967788831289,"quality":"inauspicious"},{"name":"Śubha","start":"16:37","end":"17:58","startHours":16.60967788831289,"endHours":17.972308003809598,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:58","end":"19:37","startHours":17.972308003809598,"endHours":19.609677888312895,"quality":"auspicious"},{"name":"Kāla","start":"19:37","end":"21:15","startHours":19.609677888312895,"endHours":21.247047772816188,"quality":"inauspicious"},{"name":"Śubha","start":"21:15","end":"22:53","startHours":21.247047772816188,"endHours":22.88441765731948,"quality":"auspicious"},{"name":"Roga","start":"22:53","end":"00:31","startHours":22.88441765731948,"endHours":24.52178754182278,"quality":"inauspicious"},{"name":"Udveg","start":"00:31","end":"02:10","startHours":24.52178754182278,"endHours":26.159157426326075,"quality":"inauspicious"},{"name":"Chala","start":"02:10","end":"03:48","startHours":26.159157426326075,"endHours":27.79652731082937,"quality":"neutral"},{"name":"Labha","start":"03:48","end":"05:26","startHours":27.79652731082937,"endHours":29.433897195332662,"quality":"auspicious"},{"name":"Amṛta","start":"05:26","end":"07:04","startHours":29.433897195332662,"endHours":31.07126707983596,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:04","end":"08:04","startHours":7.071267079835958,"endHours":8.071267079835959,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:04","end":"09:04","startHours":8.071267079835959,"endHours":9.071267079835959,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:04","end":"10:04","startHours":9.071267079835959,"endHours":10.071267079835959,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:04","end":"11:04","startHours":10.071267079835959,"endHours":11.071267079835959,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:04","end":"12:04","startHours":11.071267079835959,"endHours":12.071267079835959,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:04","end":"13:04","startHours":12.071267079835959,"endHours":13.071267079835959,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:04","end":"14:04","startHours":13.071267079835959,"endHours":14.071267079835959,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:04","end":"15:04","startHours":14.071267079835959,"endHours":15.071267079835959,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:04","end":"16:04","startHours":15.071267079835959,"endHours":16.07126707983596,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:04","end":"17:04","startHours":16.07126707983596,"endHours":17.07126707983596,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:04","end":"18:04","startHours":17.07126707983596,"endHours":18.07126707983596,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:04","end":"19:04","startHours":18.07126707983596,"endHours":19.07126707983596,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:04","end":"20:04","startHours":19.07126707983596,"endHours":20.07126707983596,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:04","end":"21:04","startHours":20.07126707983596,"endHours":21.07126707983596,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:04","end":"22:04","startHours":21.07126707983596,"endHours":22.07126707983596,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:04","end":"23:04","startHours":22.07126707983596,"endHours":23.07126707983596,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:04","end":"00:04","startHours":23.07126707983596,"endHours":24.07126707983596,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:04","end":"01:04","startHours":24.07126707983596,"endHours":25.07126707983596,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:04","end":"02:04","startHours":25.07126707983596,"endHours":26.07126707983596,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:04","end":"03:04","startHours":26.07126707983596,"endHours":27.07126707983596,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:04","end":"04:04","startHours":27.07126707983596,"endHours":28.07126707983596,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:04","end":"05:04","startHours":28.07126707983596,"endHours":29.07126707983596,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:04","end":"06:04","startHours":29.07126707983596,"endHours":30.07126707983596,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:04","end":"07:04","startHours":30.07126707983596,"endHours":31.07126707983596,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North","rahuVasa":"North-West","anandadiYoga":{"name":"Prajāpati","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":-15.511018296003357,"eotMinutes":-14.37765250936663,"ayanamsa":23.7287}},"calendars":{"vikram_samvat":2048,"vikram_samvatsara":"Tāraṇa","saka_samvat":1913,"saka_samvatsara":"Prajāpati","bengali_samvat":1398,"malayalam_era":1167,"nanakshahi_year":522,"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 Aṣṭamī · Vikram 2048 Tāraṇa · Śaka 1913 Prajāpati"},"festivals":[{"id":"sitashtami","name":"Sītāṣṭamī","name_sanskrit":"सीताष्टमी","tradition":"Vaishnava","associated_deity":"Sītā Devī","significance":"Birth-anniversary of Sītā per Phālguna-Kṛṣṇa-Aṣṭamī tradition.","vrata":true,"detection":{"tithi_number":23,"tithi_paksha":"Kṛṣṇa","lunar_month":"Phālguna"},"precedence":3}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3226-07-09","event":"Bhagavān Krishna's birth at Mathurā","chart_id":"krishna","shared_marker":"same Kṛṣṇa Aṣṭamī","url":"/day/-3226-07-09","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","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 February 7, 1991 CE · Ṛṣikeśa · Vidhyamitra","description":"February 7, 1991 CE for Ṛṣikeśa: Kṛṣṇa Aṣṭamī, sūryodaya 07:04, sūryāsta 17:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1991-02-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1991-02-07","sa":"https://sa.vidhyamitra.com/city/rishikesh/1991-02-07","hi":"https://hi.vidhyamitra.com/city/rishikesh/1991-02-07","x-default":"https://vidhyamitra.com/city/rishikesh/1991-02-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T06:21:48.012Z","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":"2026-06-02T06:21:48.012Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T06:21:48.012Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}