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Old 26-02-2018, 12:04 PM
bigjoe (JOSEPH)
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Join Date: Nov 2010
Location: sydney
Posts: 1,363
GANYMEDE TRANSIT ACROSS JUPITER, 4th March, Aus.

Sunday: 4 March 2018, Sydney Time..

GANYMEDE will Transit Jupiters face at..

00h 32m 20s... at distance: 5 748843249 km or 41 light minutes away !.

Need to adjust for Daylight Savings, so add 1 hr East Coast of Australia here.

Altitude: 33.654° Azimuth: 89.172° East ...at time of Transit.

R.A. 15h 24m 17s Dec. - 17° 25' 27".

Jupiter Rises: At 22h 44.1m on the previous day here in Sydney: At magnitude -2.2, Size 39.33", and Ganymede at : Magnitude 5.3 ...adjust for DS.

Great Red Spot will be behind Jupiters disk at that time..does not rotate around till 8am...Transit egress at 01h 41m AEST...So about an hr.

Something worth watching, and imaging for those inclined...Esp if you have a big scope and excellent seeing, and may notice or image some ALBEDO markings on Ganymedes 1.5 " plus disk, as is the case with Mars and Olypmus Mons...

I know Ill be watching...weather permitting.

bigjoe

Last edited by bigjoe; 26-02-2018 at 12:07 PM. Reason: Adding
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