TRANSIT OF VENUS, 2004

Transcript

1 TRANSIT OF VENUS, 2004 A transit of Venus over the disk of the Sun will occur on June 8. The entire transit will be visible in Asia except the extreme eastern portion, Africa except the western portion, Europe except the extreme southwestern Iberian Peninsula, Greenland except the southern tip, and most of the Indian Ocean. The times provided in the following tables are given provisionally in Universal Time, using T(A)= +68 s. Once the value of T is known, the data on these pages may be expressed in Universal Time as follows: Define δt = T T(A), in units of seconds of time. Change the times given in provisional Universal Time by subtracting δt. Apply the correction δt degrees to the longitudes in such a way that if δt is positive, the longitudes shift to the east. Leave all other quantities unchanged. Longitude is positive to the east and negative to the west. GEOCENTRIC PHASES Position Venus being in the Zenith in UT Angle P Longitude Latitude d Ingress, exterior contact June Ingress, interior contact Least angular distance Egress, interior contact Egress, exterior contact Least angular distance: The position angle P of the point of contact is reckoned from the north point of the limb of the Sun towards the east. The position angle V of the point of contact, reckoned from the vertex of the limb of the Sun towards the east, is found by: where C, the parallactic angle, is given by: V = P C tan C = cos sin h sin cos cos sin cos h in which is the geocentric latitude of the place, is the declination of the Sun, and h is the local hour angle of the Sun; sin C has the same algebraic sign as sin h.

2 TRANSIT OF VENUS OF 2004 JUNE 8 Ingress Ingress Least Egress Egress United States Boston, MA New York, NY USNO, Washington, DC NRAO, Green Bank, WV Morehead Obs., NC Miami, FL Univ. of Fl. Radio Obs., FL Univ. of Alabama Obs., AL Goethe Link Obs., IN Chicago, IL Yerkes Obs., WI St. Louis, MO Clyde W. Tombaugh Obs., KS Houston, TX Fairbanks, AK Nome, AK Canada Algonquin Radio Obs Halifax Devon Astro. Obs., Edmonton Iqaluit (Frobisher Bay) Ottawa River Solar Obs Winnipeg Yellowknife Nuuk, Greenland Hamilton, Bermuda Arecibo Obs., Puerto Rico Kingston, Jamaica Merida, Mexico Tegucigalpa, Honduras Belmopan, Belize Managua, Nicaragua San Jose, Costa Rica Panama City, Panama

3 Ingress Ingress Least Egress Egress Cordoba Ast. Obs., Argentina La Paz, Bolivia Brazil Abrahao de Moraes Obs., Sao Paulo Brasilia Manaus Natal Piedade Obs., Belo Horizonte Antofagasta, Chile Nat. Ast. Obs., Bogota, Columbia Quito Ast. Obs., Ecuador Asuncion, Paraguay Peru Lima Iquitos Paramaribo, Suriname Montevideo Obs., Uruguay Cagigal Obs., Caracas, Venezuela Australia Anglo-Aust. Obs., Coonabarabran Aust. Nat. Radio Ast. Obs., Parkes Brisbane Darwin Melbourne Mt. Stromlo Obs., Weston Creek Perth Sydney Alice Springs Suva (Viti Levu), Fiji Majuro, Marshall Islands Auckland Obs., New Zealand Port Moresby, Papau New Guinea

4 TRANSIT OF VENUS OF 2004 JUNE 8 Ingress Ingress Least Egress Egress Japan National Ast. Obs., Tokyo Kyoto Univ. Ast. Dept. Obs Norikura Solar Obs., Nagano Osaka Sapporo Korea Ast. Obs., Korea, Rep. of China, People s Republic of Purple Mtn. Obs., Nanjing Yunnan Obs Beijing Wuhan Harbin Victoria, Hong Kong Ulaanbaatar, Mongolia Taipei Obs., Taiwan Hanoi, Vietnam Yangon, Myanmar Bangkok, Thailand Manila, Philippines Kuala Lumpur, Malaysia Bosscha Obs., Bandung, Indonesia India Bombay New Delhi Calcutta Vainu Bappu Obs Colombo, Sri Lanka Kabul, Afghanistan Qaraghandy, Kazakhstan Tashkent Obs., Uzbekistan

5 Ingress Ingress Least Egress Egress Baku, Azerbaijan Tehran, Iran Sanaa, Yemen Riyadh, Saudi Arabia Amman, Jordan F. and G. Wise Obs., Israel Kottamia Obs., Cairo, Egypt Alger Obs., Algeria Morocco Rabat Marrakech Dakar, Senegal Monrovia, Liberia Khartoum, Sudan Addis Ababa, Ethiopia N Djamena, Chad Tombouctou, Mali Abuja, Nigeria Yaounde, Cameroon Nairobi, Kenya Dar es Salaam, Tanzania Luanda, Angola Lusaka, Zambia South Africa, Republic of South African Ast. Obs Pretoria Antananarivo, Madagascar

6 TRANSIT OF VENUS OF 2004 JUNE 8 Ingress Ingress Least Egress Egress Univ. of Ankara, Turkey National Obs. of Athens, Greece Italy Bologna Univ. Obs Rome Obs Palermo Univ. Ast. Obs Spain National Ast. Obs., Madrid Barcelona Naval Obs., San Fernando Lisbon Ast. Obs., Portugal United Kingdom Univ. of London Obs Armagh Obs Cambridge Univ. Observatories Univ. of Glasgow Obs Univ. of St. Andrews Obs Dunsink Obs., Dublin, Ireland France Paris Obs Pic du Midi Obs Lyon Strasbourg Obs Marseille Germany Archenhold Obs., Berlin Hamburg Obs Effelsberg Radio Obs., Bonn Copenhagen Univ. Obs., Denmark Leiden Obs., Netherlands Royal Obs. of Belgium, Belgium

7 Ingress Ingress Least Egress Egress Warsaw Univ. Ast. Obs., Poland Norway Skibotn Ast. Obs Oslo Longyearbyen (Svalbard) Univ. of Helsinki Obs., Finland Sweden Lund Obs Stockholm Russia Irkutsk Ast. Obs Pulkovo Obs., St. Petersburg Moscow Murmansk Tomsk Univ. Obs Tiksi Magadan Vladivostok Urania Obs., Budapest, Hungary Bucharest Ast. Obs., Romania Charles Univ. Ast. Inst., Czech Rep Urania Obs., Vienna, Austria Zimmerwald Obs., Switzerland Sarajevo, Bosnia Kiev Univ. Obs., Ukraine Vilnius Ast. Obs., Lithuania Reykjavik, Iceland Dot leaders indicate the phenomenon occurs below the horizon. Blanks indicate the phenomenon does not occur for the location.