GRS, Sr. transit times for observing GRS, Jr.
For those interested in trying to see the GRS, Jr. approach to GRS pappa, the Sky & Telescope website has an online calculator that gives transit times for the Great Red Spot: http://skyandtelescope.com/observing/objects/planets/article_107_1.asp GRS, Jr. looks from the June 5 NASA Press Release to be about 10-20 degrees trailing of the Great Red Spot. http://science.nasa.gov/headlines/y2006/05jun_redperil.htm?list89139 The second page of the S&T Article also includes a table of all the GRS transits for the rest of the year from the ALPO. http://skyandtelescope.com/observing/objects/planets/article_107_2.asp UTC GRS transit times for the next week (from the article) are: 10, 7:51 (Y-alt 20deg), 17:47; 11, 3:43 (Y-alt 33deg, twilight), 13:38, 23:34; 12, 9:30, 19:25; 13, 5:21 (Y-34.5 deg), 15:17; 14, 1:12 (Y-Daylight), 11:08, 21:04; 15, 6:59 (Y-alt 25deg), 16:55; 16, 2:51 (Y-Civil Sunset-alt 31deg), 12:46, 22:42; 17, 8:38 (Y-alt 8.5deg), 18:33; "(Y)" after a time means that I have checked the Jupitor is above the horizon at my intermountain 41N lat, 111 W observing point. The near full Moon is up on most of these dates. - Canopus56 P.S. - I'm not quite sure what Jovian features are built into the various popular planetarium programs. P.P.S. - The MDT date/time -6h translations for favorable date-times are: 6/10 7:51UTC = 6/10 1:51AM MDT 20deg 6/11 3:45UTC = 6/10 9:45PM MDT 33deg 6/13 5:21UTC = 6/12 11:21PM MDT 34.5deg 6/15 6:59UTC = 6/15 0:59AM MDT 25deg 6/16 2:51UTC = 6/15 8:51PM MDT 31deg __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
--- Canopus56 <canopus56@yahoo.com> wrote: <snip all> I am also showing the following single shadow transits for Jupiter between June 10 and June 17. These two dates may provide more interesting astrophoto opportunities combining the GRS, Sr., GRS, Jr. and a Jovian Moon shadow: Jovian Moon Single Shadow Transits UTC date-time: 6/11/2006 4:33 Shadow ingress: 4:33 UTC Shadow egress: 8:45 UTC Jovian Moon: Europa MDT date-time-start: 6/10/2006 10:33 PM Corresponding GRS transit: 6/11 3:45UTC = 6/10 9:45PM MDT 33deg UTC date-time: 6/15/2006 2:48 Shadow ingress: 2:48 UTC Shadow egress: 4:57 Jovian Moon: Io MDT date-time-start: 6/15/2006 8:48 PM Corresponding GRS transit: 6/15 6:59UTC = 6/15 0:59AM MDT 25deg - Canopus56 __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
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Canopus56