View Full Version : NASA "Astronomy Night" at Chicagoland Library - Oct 16

2010-Oct-02, 09:22 PM
The Arlington Heights (Illinois) Memorial Library will be hosting a free Astronomy Night on Friday, October 15, 2010 from 7:00 to 9:30 pm CDT. The event will begin with a NASA presentation on Exoplanets in the second floor Hendrickson Room, and conclude with an outdoor star party hosted by the Northwest Suburban Astronomy Club.

This second largest public library in Chicagoland is located at 500 N. Dunton Ave. in Arlington Heights on the south side of Euclid Ave. Parking under the library or to its south or west is free. The library is about three blocks due north of the Arlington Heights (Not Arlington Park) Metra train station on the Union Pacific Northwest Line.

Iíll be there. Reservations are not required. Hope to see you. Please reply to this thread if you plan to come. See the map below.


2010-Oct-03, 04:44 PM
Apparently a typo in the headline cannot be edited. Sorry, it should have read Oct 15.

2010-Oct-05, 05:52 PM
During the Astronomy Night Star Party all four Galilean satellites will appear to the east of Jupiter. Outward from Jupiter they will appear in the order Io, Ganymede, Europa and Callisto. Of course Ganymede is actually further from Jupiter than Europa, but Ganymede will be closer to us and from our perspective slightly to the west and south of Europa. Europa will be at its greatest eastern elongation from Jupiter, while the other three satellites will all be closer to us than Jupiter.

Iíve created a graphic illustrating the relative positions of these five celestial bodies on 2010 OCT 15 at 21:00 CDT. It can be seen at http://www.CurtRenz.com/astronomical then going to the page for Superior Planets.

Io and its shadow will be transiting Jupiter a little later that evening. Below is my timetable.

21:45:37 CDT Io begins partial transit
21:49:17 CDT Io begins total transit
22:23:18 CDT Ioís shadow begins partial transit
22:26:58 CDT Ioís shadow begins total transit
23:59:55 CDT Io ends total transit
00:03:36 CDT Io ends partial transit
00:35:43 CDT Ioís shadow ends total transit
00:41:12 CDT Ioís shadow ends partial transit

2010-Oct-12, 04:56 PM
Iíve created an hourly ephemeris for Comet 103P/Hartley during the evening of 2010 OCT 15 for the Astronomy Night Star Party. Included are equatorial coordinates for the current date and J2000.0. Also included are atmospheric refraction corrected horizontal coordinates for those with alt-az mounts. The ephemeris is available at the bottom of the following webpage: http://www.curtrenz.com/astronomical