Southern Colorado Skies / October 1-7, 2017

Consider a planetarium program to help you plan your observations. There are many commercial products available; an excellent program (STELLARIUM) is available free at


Look for Saturn this week as it slides through Ophiuchus on its way to Sagittarius.

Thursday (October 5)

Venus and Mars are in conjunction this morning (in line, as seen from Earth). Look during dawn, when they will be only 1/4 degree apart. Mars will be relatively dim, however, so you may need binoculars to separate it from the overpowering brightness of Venus.

Full Moon at 12:40 p.m. MDT.



Mercury (Virgo):

Mercury is hidden in the glare of the Sun.

Venus (in Leo):

Venus is still a brilliant “morning star” before and during dawn, but it is dropping fast in elevation. (Mars and Venus will pass closely by each other on October 5th – see above.)

Mars (in Leo):

Very low at dawn (binoculars may be required – beware of the rising Sun!), below Venus. (Mars and Venus will pass closely by each other on October 5th – see above.)

Jupiter (in Virgo):

Jupiter is now hidden in the sunset.

Saturn (in Ophiuchus):

Saturn is visible in the south-southwest after nightfall. See the graphic, above.

Uranus (in Pisces):

High in the east by late evening.

Neptune (in Aquarius):

High in the southeast by late evening.


The following data are based on my location in Pueblo West, Colorado. If you live well outside this area, you should consider checking this information for your location in order to be assured of accurate times, elevations, etc. If you’re unfamiliar with Iridium flares, check out my article at:

Monday (October 2) 6:17:08 a.m. / Magnitude -2.6 / S / Elevation 46 degrees

Tuesday (October 3) 6:11:07 a.m. / Magnitude -3.0 / S / Elevation 46 degrees

Saturday (October 7) 8:09:38 p.m. / Magnitude -3.7 / NNE / Elevation 34 degrees


These are too numerous to list here! If you’re seriously interested, load the ISS DETECTOR app on your smart phone or tablet.

Carpe noctem

Dave Furry

Pueblo West, Colorado

Leave a Reply